1 files changed, 8 insertions, 0 deletions
diff --git a/benchmark/vm_method.yml b/benchmark/vm_method.yml
new file mode 100644
index 0000000000..d45e4ec572
--- /dev/null
+++ b/benchmark/vm_method.yml
@@ -0,0 +1,8 @@
+prelude: |
+  def m
+    nil
+  end
+benchmark:
+  vm_method: |
+    m; m; m; m; m; m; m; m;
+loop_count: 6000000
diff --git a/.dir-locals.el b/.dir-locals.el
new file mode 100644
index 0000000000..8f4b96445c
--- /dev/null
+++ b/.dir-locals.el
@@ -0,0 +1,39 @@
+;; Copyright (c) 2018 Urabe, Shyouhei.  All rights reserved.
+;;
+;; This file is a part of  the programming language Ruby.  Permission is hereby
+;; granted, to either  redistribute and/or modify this file,  provided that the
+;; conditions mentioned  in the  file COPYING  are met.   Consult the  file for
+;; details.
+
+((nil .
+     ((indent-tabs-mode . nil)
+      (require-final-newline . t)
+      (tab-width . 8)
+      (show-trailing-whitespace . t)
+      (whitespace-line-column . 80))) ;; See also [Misc #12277]
+
+ ;; (bat-mode . ((buffer-file-coding-system . utf-8-dos)))
+
+ (ruby-mode . ((ruby-indent-level . 2)))
+
+ (rdoc-mode . ((fill-column . 74)))
+
+ (yaml-mode . ((yaml-indent-offset . 2)))
+
+ (makefile-mode . ((indent-tabs-mode . t)))
+
+ (c-mode . ((c-file-style . "ruby")))
+
+ (c++-mode . ((c-file-style . "ruby")))
+
+ (change-log-mode .
+     ((buffer-file-coding-system . us-ascii)
+      (indent-tabs-mode . t)
+      (change-log-indent-text . 2)
+      (add-log-time-format . (lambda (&optional x y)
+        (let* ((time (or x (current-time)))
+	       (system-time-locale "C")
+	       (diff (+ (cadr time) 32400))
+	       (lo (% diff 65536))
+	       (hi (+ (car time) (/ diff 65536))))
+        (format-time-string "%a %b %e %H:%M:%S %Y" (list hi lo) t)))))))
diff --git a/.document b/.document
index ac7c493840..753d6f9892 100644
--- a/.document
+++ b/.document
@@ -5,24 +5,55 @@
 
 # Process all the C source files
 *.c
+*.y
 
 # prelude
 prelude.rb
-
 rbconfig.rb
 
+array.rb
+ast.rb
+dir.rb
+gc.rb
+hash.rb
+io.rb
+kernel.rb
+marshal.rb
+numeric.rb
+nilclass.rb
+pack.rb
+pathname_builtin.rb
+ractor.rb
+string.rb
+symbol.rb
+timev.rb
+thread_sync.rb
+trace_point.rb
+warning.rb
+yjit.rb
+zjit.rb
+
+# Errno::*
+known_errors.inc
+
 # the lib/ directory (which has its own .document file)
 lib
 
 # and some of the ext/ directory (which has its own .document file)
 ext
 
-# rdoc files
-ChangeLog
+# For `prism`, ruby code is in lib and c in the prism folder
+prism
 
-NEWS
+# rdoc files
+NEWS.md
 
 README.md
 README.ja.md
 
+COPYING
+COPYING.ja
+
+LEGAL
+
 doc
diff --git a/.editorconfig b/.editorconfig
index f404977180..4633a7acae 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -2,19 +2,29 @@ root = true
 
 [*]
 end_of_line = lf
+indent_size = 4
+indent_style = space
 insert_final_newline = true
-trim_trailing_whitespace = true
 tab_width = 8
-indent_style = tab
-indent_size = 4
+trim_trailing_whitespace = true
 
-[**.bat]
+[*.bat]
 end_of_line = crlf
 
-[**.rb]
-indent_style = space
+[*.gemspec]
+indent_size = 2
+
+[*.rb]
 indent_size = 2
 
 [*.yml]
 indent_size = 2
-indent_style = space
+
+[{*[Mm]akefile*,*.mak,*.mk,depend}]
+indent_style = tab
+
+[enc/*]
+indent_size = 2
+
+[reg*.[ch]]
+indent_size = 2
diff --git a/.gdbinit b/.gdbinit
index d31ccaa7df..4457f6f12b 100644
--- a/.gdbinit
+++ b/.gdbinit
@@ -1,21 +1,7 @@
-define hook-run
-  set $color_type = 0
-  set $color_highlite = 0
-  set $color_end = 0
-end
-
 define ruby_gdb_init
-  if !$color_type
-    set $color_type = "\033[31m"
-  end
-  if !$color_highlite
-    set $color_highlite = "\033[36m"
-  end
-  if !$color_end
-    set $color_end = "\033[m"
-  end
-  if ruby_dummy_gdb_enums.special_consts
-  end
+  init-if-undefined $color_type = "\033[31m"
+  init-if-undefined $color_highlite = "\033[36m"
+  init-if-undefined $color_end = "\033[m"
 end
 
 # set prompt \033[36m(gdb)\033[m\040
@@ -63,7 +49,15 @@ define rp
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_OBJECT
     printf "%sT_OBJECT%s: ", $color_type, $color_end
-    print (struct RObject *)($arg0)
+    print ((struct RObject *)($arg0))->basic
+    if ($flags & ROBJECT_EMBED)
+      print/x *((VALUE*)((struct RObject*)($arg0))->as.ary) @ (RSHAPE_CAPACITY(rb_obj_shape_id($arg0)))
+    else
+      print (((struct RObject *)($arg0))->as.heap)
+      if (((struct RObject*)($arg0))->as.heap.numiv) > 0
+        print/x *(((struct RObject*)($arg0))->as.heap.ivptr) @ (((struct RObject*)($arg0))->as.heap.numiv)
+      end
+    end
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_CLASS
     printf "%sT_CLASS%s%s: ", $color_type, ($flags & RUBY_FL_SINGLETON) ? "*" : "", $color_end
@@ -89,14 +83,13 @@ define rp
     set $regsrc = ((struct RRegexp*)($arg0))->src
     set $rsflags = ((struct RBasic*)$regsrc)->flags
     printf "%sT_REGEXP%s: ", $color_type, $color_end
+    set $len = ((struct RString*)($arg0))->len
     set print address off
-    output (char *)(($rsflags & RUBY_FL_USER1) ? \
-	    ((struct RString*)$regsrc)->as.heap.ptr : \
-	    ((struct RString*)$regsrc)->as.ary)
+    output *(char *)(($rsflags & RUBY_FL_USER1) ? \
+            ((struct RString*)$regsrc)->as.heap.ptr : \
+            ((struct RString*)$regsrc)->as.embed.ary) @ $len
     set print address on
-    printf " len:%ld ", ($rsflags & RUBY_FL_USER1) ? \
-            ((struct RString*)$regsrc)->as.heap.len : \
-            (($rsflags & (RUBY_FL_USER2|RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6)) >> RUBY_FL_USHIFT+2)
+    printf " len:%ld ", $len
     if $flags & RUBY_FL_USER6
       printf "(none) "
     end
@@ -115,26 +108,26 @@ define rp
       printf "%sT_ARRAY%s: len=%ld ", $color_type, $color_end, $len
       printf "(embed) "
       if ($len == 0)
-	printf "{(empty)} "
+        printf "{(empty)} "
       else
-	output/x *((VALUE*)((struct RArray*)($arg0))->as.ary) @ $len
-	printf " "
+        print/x *((VALUE*)((struct RArray*)($arg0))->as.ary) @ $len
+        printf " "
       end
     else
       set $len = ((struct RArray*)($arg0))->as.heap.len
       printf "%sT_ARRAY%s: len=%ld ", $color_type, $color_end, $len
       if ($flags & RUBY_FL_USER2)
-	printf "(shared) shared="
-	output/x ((struct RArray*)($arg0))->as.heap.aux.shared
-	printf " "
+        printf "(shared) shared="
+        output/x ((struct RArray*)($arg0))->as.heap.aux.shared_root
+        printf " "
       else
-	printf "(ownership) capa=%ld ", ((struct RArray*)($arg0))->as.heap.aux.capa
+        printf "(ownership) capa=%ld ", ((struct RArray*)($arg0))->as.heap.aux.capa
       end
       if ($len == 0)
-	printf "{(empty)} "
+        printf "{(empty)} "
       else
-	output/x *((VALUE*)((struct RArray*)($arg0))->as.heap.ptr) @ $len
-	printf " "
+        print/x *((VALUE*)((struct RArray*)($arg0))->as.heap.ptr) @ $len
+        printf " "
       end
     end
     print (struct RArray *)($arg0)
@@ -145,34 +138,29 @@ define rp
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_HASH
     printf "%sT_HASH%s: ", $color_type, $color_end,
-    if ((struct RHash *)($arg0))->ntbl
-      printf "len=%ld ", ((struct RHash *)($arg0))->ntbl->num_entries
+    if (((struct RHash *)($arg0))->basic.flags & RHASH_ST_TABLE_FLAG)
+      set $st = (struct st_table *)((uintptr_t)($arg0) + sizeof(struct RHash))
+      printf "st len=%ld ", $st->num_entries
+      print $st
+    else
+      printf "li len=%ld bound=%ld ", \
+        ((((struct RHash *)($arg0))->basic.flags & RHASH_AR_TABLE_SIZE_MASK) >> RHASH_AR_TABLE_SIZE_SHIFT), \
+        ((((struct RHash *)($arg0))->basic.flags & RHASH_AR_TABLE_BOUND_MASK) >> RHASH_AR_TABLE_BOUND_SHIFT)
+	print (struct ar_table_struct *)((uintptr_t)($arg0) + sizeof(struct RHash))
     end
-    print (struct RHash *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_STRUCT
-    printf "%sT_STRUCT%s: len=%ld ", $color_type, $color_end, \
-      (($flags & (RUBY_FL_USER1|RUBY_FL_USER2)) ? \
+    set $len = (($flags & (RUBY_FL_USER1|RUBY_FL_USER2)) ? \
        ($flags & (RUBY_FL_USER1|RUBY_FL_USER2)) >> (RUBY_FL_USHIFT+1) : \
        ((struct RStruct *)($arg0))->as.heap.len)
+    printf "%sT_STRUCT%s: len=%ld ", $color_type, $color_end, $len
     print (struct RStruct *)($arg0)
-    x/xw (($flags & (RUBY_FL_USER1|RUBY_FL_USER2)) ? \
-          ((struct RStruct *)($arg0))->as.ary : \
-          ((struct RStruct *)($arg0))->as.heap.ptr)
+    output/x *(($flags & (RUBY_FL_USER1|RUBY_FL_USER2)) ? \
+              ((struct RStruct *)($arg0))->as.ary : \
+              ((struct RStruct *)($arg0))->as.heap.ptr) @ $len
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_BIGNUM
-    printf "%sT_BIGNUM%s: sign=%d len=%ld ", $color_type, $color_end, \
-      (($flags & RUBY_FL_USER1) != 0), \
-      (($flags & RUBY_FL_USER2) ? \
-       ($flags & (RUBY_FL_USER5|RUBY_FL_USER4|RUBY_FL_USER3)) >> (RUBY_FL_USHIFT+3) : \
-       ((struct RBignum*)($arg0))->as.heap.len)
-    if $flags & RUBY_FL_USER2
-      printf "(embed) "
-    end
-    print (struct RBignum *)($arg0)
-    x/xw (($flags & RUBY_FL_USER2) ? \
-          ((struct RBignum*)($arg0))->as.ary : \
-          ((struct RBignum*)($arg0))->as.heap.digits)
+    rp_bignum $arg0
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_RATIONAL
     printf "%sT_RATIONAL%s: ", $color_type, $color_end
@@ -197,12 +185,14 @@ define rp
     print (struct RBasic *)($arg0)
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_DATA
-    if ((struct RTypedData *)($arg0))->typed_flag == 1
-      printf "%sT_DATA%s(%s): ", $color_type, $color_end, ((struct RTypedData *)($arg0))->type->wrap_struct_name
-      print (struct RTypedData *)($arg0)
+    set $data = (struct RTypedData *)($arg0)
+    set $type = (const rb_data_type_t *)($data->type & ~1)
+    printf "%sT_DATA%s(%s): ", $color_type, $color_end, $type->wrap_struct_name
+    print *$type
+    if ($data->type & 1)
+      print (void *)&$data->data
     else
-      printf "%sT_DATA%s: ", $color_type, $color_end
-      print (struct RData *)($arg0)
+      print $data
     end
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_MATCH
@@ -247,7 +237,7 @@ define rp
   else
   if ($flags & RUBY_T_MASK) == RUBY_T_IMEMO
     printf "%sT_IMEMO%s(", $color_type, $color_end
-    output (enum imemo_type)(($flags>>RUBY_FL_USHIFT)&imemo_mask)
+    output (enum imemo_type)(($flags>>RUBY_FL_USHIFT)&RUBY_IMEMO_MASK)
     printf "): "
     rp_imemo $arg0
   else
@@ -261,6 +251,10 @@ define rp
     printf "%sT_ZOMBIE%s: ", $color_type, $color_end
     print (struct RData *)($arg0)
   else
+  if ($flags & RUBY_T_MASK) == RUBY_T_MOVED
+    printf "%sT_MOVED%s: ", $color_type, $color_end
+    print *(struct RMoved *)$arg0
+  else
     printf "%sunknown%s: ", $color_type, $color_end
     print (struct RBasic *)($arg0)
   end
@@ -296,6 +290,7 @@ define rp
   end
   end
   end
+  end
 end
 document rp
   Print a Ruby's VALUE.
@@ -327,6 +322,9 @@ define rp_id
   if $id == idLTLT
     printf "(:<<)\n"
   else
+  if $id == idGTGT
+    printf "(:>>)\n"
+  else
   if $id == idLE
     printf "(:<=)\n"
   else
@@ -354,6 +352,18 @@ define rp_id
   if $id == idASET
     printf "(:[]=)\n"
   else
+  if $id == idCOLON2
+    printf "(:'::')\n"
+  else
+  if $id == idANDOP
+    printf "(:&&)\n"
+  else
+  if $id == idOROP
+    printf "(:||)\n"
+  else
+  if $id == idANDDOT
+    printf "(:&.)\n"
+  else
     if $id <= tLAST_OP_ID
       printf "O"
     else
@@ -385,12 +395,13 @@ define rp_id
       end
     end
     printf "(%ld): ", $id
-    set $str = lookup_id_str($id)
-    if $str
-      rp_string $str
-    else
-      echo undef\n
-    end
+    print_id $id
+    echo \n
+  end
+  end
+  end
+  end
+  end
   end
   end
   end
@@ -415,21 +426,29 @@ end
 
 define output_string
   set $flags = ((struct RBasic*)($arg0))->flags
-  printf "%s", (char *)(($flags & RUBY_FL_USER1) ? \
-	    ((struct RString*)($arg0))->as.heap.ptr : \
-	    ((struct RString*)($arg0))->as.ary)
+  set $len = ((struct RString*)($arg0))->len
+  if $len > 0
+    output *(char *)(($flags & RUBY_FL_USER1) ? \
+            ((struct RString*)($arg0))->as.heap.ptr : \
+            ((struct RString*)($arg0))->as.embed.ary) @ $len
+  else
+    output ""
+  end
 end
 
-define rp_string
+define print_string
   set $flags = ((struct RBasic*)($arg0))->flags
-  set print address off
-  output (char *)(($flags & RUBY_FL_USER1) ? \
-	    ((struct RString*)($arg0))->as.heap.ptr : \
-	    ((struct RString*)($arg0))->as.ary)
-  set print address on
-  printf " bytesize:%ld ", ($flags & RUBY_FL_USER1) ? \
-          ((struct RString*)($arg0))->as.heap.len : \
-          (($flags & (RUBY_FL_USER2|RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6)) >> RUBY_FL_USHIFT+2)
+  set $len = ((struct RString*)($arg0))->len
+  if $len > 0
+    printf "%s", *(char *)(($flags & RUBY_FL_USER1) ? \
+            ((struct RString*)($arg0))->as.heap.ptr : \
+            ((struct RString*)($arg0))->as.embed.ary) @ $len
+  end
+end
+
+define rp_string
+  output_string $arg0
+  printf " bytesize:%ld ", $len
   if !($flags & RUBY_FL_USER1)
     printf "(embed) "
   else
@@ -460,22 +479,67 @@ document rp_string
   Print the content of a String.
 end
 
+define rp_bignum
+  set $flags = ((struct RBignum*)($arg0))->basic.flags
+  set $len = (($flags & RUBY_FL_USER2) ? \
+       ($flags & (RUBY_FL_USER5|RUBY_FL_USER4|RUBY_FL_USER3)) >> (RUBY_FL_USHIFT+3) : \
+       ((struct RBignum*)($arg0))->as.heap.len)
+  printf "%sT_BIGNUM%s: sign=%d len=%ld ", $color_type, $color_end, \
+         (($flags & RUBY_FL_USER1) != 0), $len
+  if $flags & RUBY_FL_USER2
+    printf "(embed) "
+  end
+  print (struct RBignum *)($arg0)
+  set $ptr = (($flags & RUBY_FL_USER2) ? \
+              ((struct RBignum*)($arg0))->as.ary : \
+              ((struct RBignum*)($arg0))->as.heap.digits)
+  set $len = $len-1
+  printf "0x%x", $ptr[$len]
+  while $len > 0
+    set $len = $len-1
+    set $val = $ptr[$len]
+    set $w = sizeof($ptr[0])
+    printf "_"
+    if $w > 8
+      printf "%.32x", $val
+    else
+    if $w > 4
+      printf "%.16x", $val
+    else
+    if $w > 2
+      printf "%.8x", $val
+    else
+    if $w > 1
+      printf "%.4x", $val
+    else
+      printf "%.2x", $val
+    end
+    end
+    end
+    end
+  end
+  printf "\n"
+end
+document rp_bignum
+  Print the content of a Bignum.
+end
+
 define rp_class
+  set $class_and_classext = (struct RClass_and_rb_classext_t *)($arg0)
   printf "(struct RClass *) %p", (void*)$arg0
-  if ((struct RClass *)($arg0))->ptr.origin_ != $arg0
-    printf " -> %p", ((struct RClass *)($arg0))->ptr.origin_
+  if $class_and_classext->classext->origin_ != (VALUE)$arg0
+    printf " -> %p", $class_and_classext->classext->origin_
   end
   printf "\n"
   rb_classname $arg0
-  print *(struct RClass *)($arg0)
-  print *((struct RClass *)($arg0))->ptr
+  print/x *$class_and_classext
 end
 document rp_class
   Print the content of a Class/Module.
 end
 
 define rp_imemo
-  set $flags = (enum imemo_type)((((struct RBasic *)($arg0))->flags >> RUBY_FL_USHIFT) & imemo_mask)
+  set $flags = (enum imemo_type)((((struct RBasic *)($arg0))->flags >> RUBY_FL_USHIFT) & RUBY_IMEMO_MASK)
   if $flags == imemo_cref
     printf "(rb_cref_t *) %p\n", (void*)$arg0
     print *(rb_cref_t *)$arg0
@@ -607,11 +671,6 @@ define nd_stts
 end
 
 
-define nd_entry
-  printf "%su3.entry%s: ", $color_highlite, $color_end
-  p ($arg0).u3.entry
-end
-
 define nd_vid
   printf "%su1.id%s: ", $color_highlite, $color_end
   p ($arg0).u1.id
@@ -627,12 +686,6 @@ define nd_cval
   rp ($arg0).u3.value
 end
 
-
-define nd_cnt
-  printf "%su3.cnt%s: ", $color_highlite, $color_end
-  p ($arg0).u3.cnt
-end
-
 define nd_tbl
   printf "%su1.tbl%s: ", $color_highlite, $color_end
   p ($arg0).u1.tbl
@@ -671,12 +724,6 @@ define nd_lit
   rp ($arg0).u1.value
 end
 
-
-define nd_frml
-  printf "%su1.node%s: ", $color_highlite, $color_end
-  rp ($arg0).u1.node
-end
-
 define nd_rest
   printf "%su2.argc%s: ", $color_highlite, $color_end
   p ($arg0).u2.argc
@@ -703,12 +750,6 @@ define nd_args
   rp ($arg0).u3.node
 end
 
-
-define nd_noex
-  printf "%su1.id%s: ", $color_highlite, $color_end
-  p ($arg0).u1.id
-end
-
 define nd_defn
   printf "%su3.node%s: ", $color_highlite, $color_end
   rp ($arg0).u3.node
@@ -726,17 +767,6 @@ define nd_new
 end
 
 
-define nd_cfnc
-  printf "%su1.cfunc%s: ", $color_highlite, $color_end
-  p ($arg0).u1.cfunc
-end
-
-define nd_argc
-  printf "%su2.argc%s: ", $color_highlite, $color_end
-  p ($arg0).u2.argc
-end
-
-
 define nd_cname
   printf "%su1.id%s: ", $color_highlite, $color_end
   p ($arg0).u1.id
@@ -798,7 +828,7 @@ end
 
 define nd_tree
   set $buf = (struct RString *)rb_str_buf_new(0)
-  call dump_node((VALUE)($buf), rb_str_new(0, 0), 0, ($arg0))
+  call dump_node((VALUE)($buf), rb_str_tmp_new(0), 0, ($arg0))
   printf "%s\n", $buf->as.heap.ptr
 end
 
@@ -815,22 +845,22 @@ define rb_numtable_entry
     set $rb_numtable_p = $rb_numtable_tbl->as.packed.bins
     while $rb_numtable_p && $rb_numtable_p < $rb_numtable_tbl->as.packed.bins+$rb_numtable_tbl->num_entries
       if $rb_numtable_p.k == $rb_numtable_id
-	set $rb_numtable_key = $rb_numtable_p.k
-	set $rb_numtable_rec = $rb_numtable_p.v
-	set $rb_numtable_p = 0
+        set $rb_numtable_key = $rb_numtable_p.k
+        set $rb_numtable_rec = $rb_numtable_p.v
+        set $rb_numtable_p = 0
       else
-	set $rb_numtable_p = $rb_numtable_p + 1
+        set $rb_numtable_p = $rb_numtable_p + 1
       end
     end
   else
     set $rb_numtable_p = $rb_numtable_tbl->as.big.bins[st_numhash($rb_numtable_id) % $rb_numtable_tbl->num_bins]
     while $rb_numtable_p
       if $rb_numtable_p->key == $rb_numtable_id
-	set $rb_numtable_key = $rb_numtable_p->key
-	set $rb_numtable_rec = $rb_numtable_p->record
-	set $rb_numtable_p = 0
+        set $rb_numtable_key = $rb_numtable_p->key
+        set $rb_numtable_rec = $rb_numtable_p->record
+        set $rb_numtable_p = 0
       else
-	set $rb_numtable_p = $rb_numtable_p->next
+        set $rb_numtable_p = $rb_numtable_p->next
       end
     end
   end
@@ -868,11 +898,10 @@ document rb_method_entry
 end
 
 define rb_classname
-  # up to 128bit int
-  set $rb_classname_permanent = "0123456789ABCDEF"
-  set $rb_classname = classname($arg0, $rb_classname_permanent)
-  if $rb_classname != RUBY_Qnil
-    rp $rb_classname
+  set $rb_classname = ((struct RClass_and_rb_classext_t*)$arg0)->classext->classpath
+  if $rb_classname != RUBY_Qfalse
+    print_string $rb_classname
+    printf "\n"
   else
     echo anonymous class/module\n
   end
@@ -909,7 +938,7 @@ define iseq
       set $operand_size = ((INSN*)($arg0))->operand_size
       set $operands = ((INSN*)($arg0))->operands
       while $i < $operand_size
-	rp $operands[$i++]
+        rp $operands[$i++]
       end
     end
   end
@@ -919,7 +948,7 @@ define iseq
 end
 
 define rb_ps
-  rb_ps_vm ruby_current_vm
+  rb_ps_vm ruby_current_vm_ptr
 end
 document rb_ps
 Dump all threads and their callstacks
@@ -927,8 +956,8 @@ end
 
 define rb_ps_vm
   print $ps_vm = (rb_vm_t*)$arg0
-  set $ps_thread_ln = $ps_vm->living_threads.n.next
-  set $ps_thread_ln_last = $ps_vm->living_threads.n.prev
+  set $ps_thread_ln      = $ps_vm->ractor.main_ractor.threads.set.n.next
+  set $ps_thread_ln_last = $ps_vm->ractor.main_ractor.threads.set.n.prev
   while 1
     set $ps_thread_th = (rb_thread_t *)$ps_thread_ln
     set $ps_thread = (VALUE)($ps_thread_th->self)
@@ -945,51 +974,80 @@ end
 
 define print_lineno
   set $cfp = $arg0
-  set $iseq = $cfp->iseq
+  set $iseq = rb_get_cfp_iseq($cfp)
   set $pos = $cfp->pc - $iseq->body->iseq_encoded
   if $pos != 0
     set $pos = $pos - 1
   end
 
-  set $i = 0
-  set $size = $iseq->body->line_info_size
-  set $table = $iseq->body->line_info_table
+  set $index = 0
+  set $size = $iseq->body->insns_info.size
+  set $table = $iseq->body->insns_info.body
+  set $positions = $iseq->body->insns_info.positions
   #printf "size: %d\n", $size
   if $size == 0
   else
-    set $i = 1
-    while $i < $size
-      #printf "table[%d]: position: %d, line: %d, pos: %d\n", $i, $table[$i].position, $table[$i].line_no, $pos
-      if $table[$i].position > $pos
-        loop_break
+  if $size == 1
+    printf "%d", $table[0].line_no
+  else
+    if $positions
+      # get_insn_info_linear_search
+      set $index = 1
+      while $index < $size
+        #printf "table[%d]: position: %d, line: %d, pos: %d\n", $i, $positions[$i], $table[$i].line_no, $pos
+        if $positions[$index] > $pos
+          loop_break
+        end
+        set $index = $index + 1
+        if $positions[$index] == $pos
+          loop_break
+        end
       end
-      set $i = $i + 1
-      if $table[$i].position == $pos
-        loop_break
+    else
+      # get_insn_info_succinct_bitvector
+      set $sd = $iseq->body->insns_info.succ_index_table
+      set $immediate_table_size = sizeof($sd->imm_part) / sizeof(uint64_t) * 9
+      if $pos < $immediate_table_size
+        set $i = $pos / 9
+        set $j = $pos % 9
+        set $index = ((int)($sd->imm_part[$i] >> ($j * 7))) & 0x7f
+      else
+        set $block_index = ($pos - $immediate_table_size) / 512
+        set $block = &$sd->succ_part[$block_index]
+        set $block_bit_index = ($pos - $immediate_table_size) % 512
+        set $small_block_index = $block_bit_index / 64
+        set $small_block_popcount = $small_block_index == 0 ? 0 : (((int)($block->small_block_ranks >> (($small_block_index - 1) * 9))) & 0x1ff)
+        set $x = $block->bits[$small_block_index] << (63 - $block_bit_index % 64)
+        set $x = ($x & 0x5555555555555555) + ($x >> 1 & 0x5555555555555555)
+        set $x = ($x & 0x3333333333333333) + ($x >> 2 & 0x3333333333333333)
+        set $x = ($x & 0x0707070707070707) + ($x >> 4 & 0x0707070707070707)
+        set $x = ($x & 0x001f001f001f001f) + ($x >> 8 & 0x001f001f001f001f)
+        set $x = ($x & 0x0000003f0000003f) + ($x >>16 & 0x0000003f0000003f)
+        set $popcnt = ($x & 0x7f) + ($x >>32 & 0x7f)
+        set $index = $block->rank + $small_block_popcount + $popcnt
       end
     end
-    printf "%d", $table[$i-1].line_no
+    printf "%d", $table[$index-1].line_no
+  end
   end
 end
 
 define check_method_entry
-  # get $immeo and $can_be_svar and return $me
   set $imemo = (struct RBasic *)$arg0
-  set $can_be_svar = $arg1
   if $imemo != RUBY_Qfalse
     set $type = ($imemo->flags >> 12) & 0x07
     if $type == imemo_ment
       set $me = (rb_callable_method_entry_t *)$imemo
     else
     if $type == imemo_svar
-      set $imemo == ((struct vm_svar *)$imemo)->cref_or_me
-      check_method_entry $imemo 0
+      set $imemo = ((struct vm_svar *)$imemo)->cref_or_me
+      check_method_entry $imemo
     end
     end
   end
 end
 
-define output_id
+define print_id
   set $id = $arg0
   # rb_id_to_serial
   if $id > tLAST_OP_ID
@@ -997,9 +1055,9 @@ define output_id
   else
     set $serial = (rb_id_serial_t)$id
   end
-  if $serial && $serial <= global_symbols.last_id
+  if $serial && $serial < ruby_global_symbols.next_id
     set $idx = $serial / ID_ENTRY_UNIT
-    set $ids = (struct RArray *)global_symbols.ids
+    set $ids = (struct RArray *)ruby_global_symbols.ids
     set $flags = $ids->basic.flags
     if ($flags & RUBY_FL_USER1)
       set $idsptr = $ids->as.ary
@@ -1020,32 +1078,61 @@ define output_id
           set $aryptr = $ary->as.heap.ptr
           set $arylen = $ary->as.heap.len
         end
-        set $result = $aryptr[($serial % ID_ENTRY_UNIT) * ID_ENTRY_SIZE + $t]
-        output_string $result
+        set $result = $aryptr[($serial % ID_ENTRY_UNIT) + $t]
+        if $result != RUBY_Qnil
+          print_string $result
+        else
+          echo undef
+        end
       end
     end
   end
 end
 
+define print_pathobj
+  set $flags = ((struct RBasic*)($arg0))->flags
+  if ($flags & RUBY_T_MASK) == RUBY_T_STRING
+    print_string $arg0
+  end
+  if ($flags & RUBY_T_MASK) == RUBY_T_ARRAY
+    if $flags & RUBY_FL_USER1
+      set $str = ((struct RArray*)($arg0))->as.ary[0]
+    else
+      set $str = ((struct RArray*)($arg0))->as.heap.ptr[0]
+    end
+    print_string $str
+  end
+end
+
 define rb_ps_thread
   set $ps_thread = (struct RTypedData*)$arg0
   set $ps_thread_th = (rb_thread_t*)$ps_thread->data
   printf "* #<Thread:%p rb_thread_t:%p native_thread:%p>\n", \
-    $ps_thread, $ps_thread_th, $ps_thread_th->thread_id
-  set $cfp = $ps_thread_th->cfp
-  set $cfpend = (rb_control_frame_t *)($ps_thread_th->stack + $ps_thread_th->stack_size)-1
+    $ps_thread, $ps_thread_th, $ps_thread_th->nt
+  set $cfp = $ps_thread_th->ec->cfp
+  set $cfpend = (rb_control_frame_t *)($ps_thread_th->ec->vm_stack + $ps_thread_th->ec->vm_stack_size)-1
   while $cfp < $cfpend
-    if $cfp->iseq
+    if $cfp->_iseq
+      set $iseq = rb_get_cfp_iseq($cfp)
+      if !((VALUE)$iseq & RUBY_IMMEDIATE_MASK) && (((imemo_ifunc << RUBY_FL_USHIFT) | RUBY_T_IMEMO)==$iseq->flags & ((RUBY_IMEMO_MASK << RUBY_FL_USHIFT) | RUBY_T_MASK))
+        printf "%d:ifunc ", $cfpend-$cfp
+        set print symbol-filename on
+        output/a $iseq.body
+        set print symbol-filename off
+        printf "\n"
+      else
       if $cfp->pc
-        set $location = $cfp->iseq->body->location
-        output_string $location.path
+        set $location = $iseq->body->location
+        printf "%d:", $cfpend-$cfp
+        print_pathobj $location.pathobj
         printf ":"
         print_lineno $cfp
         printf ":in `"
-        output_string $location.label
+        print_string $location.label
         printf "'\n"
       else
-        printf "???.rb:???:in `???'\n"
+        printf "%d: ???.rb:???:in `???'\n", $cfpend-$cfp
+      end
       end
     else
       # if VM_FRAME_TYPE($cfp->flag) == VM_FRAME_MAGIC_CFUNC
@@ -1057,7 +1144,7 @@ define rb_ps_thread
         set $env_specval = $ep[-1]
         set $env_me_cref = $ep[-2]
         while ($env_specval & 0x02) != 0
-          check_method_entry $env_me_cref 0
+          check_method_entry $env_me_cref
           if $me != 0
             loop_break
           end
@@ -1066,17 +1153,18 @@ define rb_ps_thread
           set $env_me_cref = $ep[-2]
         end
         if $me == 0
-          check_method_entry $env_me_cref 1
+          check_method_entry $env_me_cref
         end
+        printf "%d:", $cfpend-$cfp
         set print symbol-filename on
         output/a $me->def->body.cfunc.func
         set print symbol-filename off
         set $mid = $me->def->original_id
         printf ":in `"
-        output_id $mid
+        print_id $mid
         printf "'\n"
       else
-        printf "unknown_frame:???:in `???'\n"
+        printf "%d:unknown_frame:???:in `???'\n", $cfpend-$cfp
       end
     end
     set $cfp = $cfp + 1
@@ -1084,7 +1172,7 @@ define rb_ps_thread
 end
 
 define rb_count_objects
-  set $objspace = ruby_current_vm->objspace
+  set $objspace = ruby_current_vm_ptr->objspace
   set $counts_00 = 0
   set $counts_01 = 0
   set $counts_02 = 0
@@ -1169,9 +1257,9 @@ document rb_count_objects
   Counts all objects grouped by type.
 end
 
-# Details: https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/MachineInstructionsTraceWithGDB
+# Details: https://github.com/ruby/ruby/wiki/Machine-Instructions-Trace-with-GDB
 define trace_machine_instructions
-  set logging on
+  set logging enabled
   set height 0
   set width 0
   display/i $pc
@@ -1206,5 +1294,39 @@ define dump_node
   set $flags = ((struct RBasic*)($str))->flags
   printf "%s", (char *)(($flags & RUBY_FL_USER1) ? \
                         ((struct RString*)$str)->as.heap.ptr : \
-                        ((struct RString*)$str)->as.ary)
-end
+                        ((struct RString*)$str)->as.embed.ary)
+end
+
+define print_flags
+  printf "RUBY_FL_WB_PROTECTED: %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_WB_PROTECTED ? "1" : "0"
+  printf "RUBY_FL_PROMOTED    : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_PROMOTED ? "1" : "0"
+  printf "RUBY_FL_FINALIZE    : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_FINALIZE ? "1" : "0"
+  printf "RUBY_FL_SHAREABLE   : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_SHAREABLE ? "1" : "0"
+  printf "RUBY_FL_EXIVAR      : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_EXIVAR ? "1" : "0"
+  printf "RUBY_FL_FREEZE      : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_FREEZE ? "1" : "0"
+
+  printf "RUBY_FL_USER0       : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER0 ? "1" : "0"
+  printf "RUBY_FL_USER1       : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER1 ? "1" : "0"
+  printf "RUBY_FL_USER2       : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER2 ? "1" : "0"
+  printf "RUBY_FL_USER3       : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER3 ? "1" : "0"
+  printf "RUBY_FL_USER4       : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER4 ? "1" : "0"
+  printf "RUBY_FL_USER5       : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER5 ? "1" : "0"
+  printf "RUBY_FL_USER6       : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER6 ? "1" : "0"
+  printf "RUBY_FL_USER7       : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER7 ? "1" : "0"
+  printf "RUBY_FL_USER8       : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER8 ? "1" : "0"
+  printf "RUBY_FL_USER9       : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER9 ? "1" : "0"
+  printf "RUBY_FL_USER10      : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER10 ? "1" : "0"
+  printf "RUBY_FL_USER11      : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER11 ? "1" : "0"
+  printf "RUBY_FL_USER12      : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER12 ? "1" : "0"
+  printf "RUBY_FL_USER13      : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER13 ? "1" : "0"
+  printf "RUBY_FL_USER14      : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER14 ? "1" : "0"
+  printf "RUBY_FL_USER15      : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER15 ? "1" : "0"
+  printf "RUBY_FL_USER16      : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER16 ? "1" : "0"
+  printf "RUBY_FL_USER17      : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER17 ? "1" : "0"
+  printf "RUBY_FL_USER18      : %s\n", ((struct RBasic*)($arg0))->flags & RUBY_FL_USER18 ? "1" : "0"
+end
+
+source -s misc/gdb.py
+
+# Moved from beginning, since it fails on older gdbs
+set startup-with-shell off
diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
new file mode 100644
index 0000000000..d752612085
--- /dev/null
+++ b/.git-blame-ignore-revs
@@ -0,0 +1,54 @@
+# This is a file used by GitHub to ignore the following commits on `git blame`.
+#
+# You can also do the same thing in your local repository with:
+# $ git config --local blame.ignoreRevsFile .git-blame-ignore-revs
+
+# Expand tabs
+5b21e94bebed90180d8ff63dad03b8b948361089
+c5e9af9c9d890578182a21e7b71b50334cd5579e
+e63a2115f64433b21cb5dd67c5bf8b30f87ef293
+712ac99e4d0384a941c80a9f48f62943ba7d97c0
+d1474affa8e105bece209cc9d594bb0a989859e1
+2da92388b948821269b18d6b178a680f17e41750
+5062c0c621d887367af8a054e5e5d83d7ec57dd3
+
+# Indentation
+0e4bad888e605d424b9222ae0ca43f85c1634e5e
+61aa46c41648c6d1e9b0daa1a292de551fde78df
+
+# Enable Style/StringLiterals cop for RubyGems/Bundler
+d7ffd3fea402239b16833cc434404a7af82d44f3
+
+# [ruby/digest] Revert tab-expansion in external files
+48b09aae7ec5632209229dcc294dd0d75a93a17f
+8a65cf3b61c60e4cb886f59a73ff6db44364bfa9
+39dc9f9093901d40d2998653948d5da38b18ee2c
+
+# [ruby/io-nonblock] Revert tab expansion
+f28287d34c03f472ffe90ea262bdde9affd4b965
+0d842fecb4f75ab3b1d4097ebdb8e88f51558041
+4ba2c66761d6a293abdfba409241d31063cefd62
+
+# Make benchmark indentation consistent
+fc4acf8cae82e5196186d3278d831f2438479d91
+
+# Make prism_compile.c indentation consistent
+40b2c8e5e7e6e5f83cee9276dc9c1922a69292d6
+d2c5867357ed88eccc28c2b3bd4a46e206e7ff85
+
+# Miss-and-revived commits
+a0f7de814ae5c299d6ce99bed5fb308a05d50ba0
+d4e24021d39e1f80f0055b55d91f8d5f22e15084
+7a56c316418980b8a41fcbdc94067b2bda2ad112
+e90282be7ba1bc8e3119f6e1a2c80356ceb3f80a
+26a9e0b4e31f7b5a9cbd755e0a15823a8fa51bae
+2f53985da9ee593fe524d408256835667938c7d7
+bf01f6ae89a95d8f5572e050facfe311c8c28aaf
+7480cd8d37fd71a41ce12b759090051c7e14fb5a
+
+# Win32: EOL code of batch files
+23f9a0d655c4d405bb2397a147a1523436205486
+b839989fd22fef85e2af19de1bc83aa72a5b22bd
+
+# ZJIT cargo-insta snapshot raw string literals
+b78e0a6ddf7df8a7568ea71284f593423c739551
diff --git a/.gitattributes b/.gitattributes
index d9785fad00..f98c091e3f 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,5 +1,14 @@
 *.gemspec diff=ruby
 *.rb diff=ruby
+*.inc.rs linguist-generated=true
+bin svn-properties=svn:ignore=ruby
 bin/* diff=ruby
 tool/update-deps diff=ruby
 tool/make-snapshot diff=ruby
+tool/format-release diff=ruby
+tool/leaked-globals diff=ruby
+
+# To strip CR from the batch files, set the `diff.dos.textconv` filter
+# like as `git config diff.dos.textconv $'sed \'s/\r$//\''`.
+*.bat diff=dos
+*.cmd diff=dos
diff --git a/.github/SECURITY.md b/.github/SECURITY.md
new file mode 100644
index 0000000000..56baa29942
--- /dev/null
+++ b/.github/SECURITY.md
@@ -0,0 +1,9 @@
+# Security Policy
+
+## Supported Versions
+
+See <https://www.ruby-lang.org/en/downloads/branches/>.
+
+## Reporting a Vulnerability
+
+See <https://www.ruby-lang.org/en/security/>.
diff --git a/.github/actions/capiext/action.yml b/.github/actions/capiext/action.yml
new file mode 100644
index 0000000000..ed69c8ac5e
--- /dev/null
+++ b/.github/actions/capiext/action.yml
@@ -0,0 +1,86 @@
+name: rubyspec C-API extensions
+
+inputs:
+  builddir:
+    required: false
+    default: '.'
+  make:
+    required: false
+    default: 'make -s'
+
+outputs:
+  key:
+    value: >-
+      ${{
+      !steps.restore.outputs.cache-hit &&
+      github.ref == 'refs/heads/master' &&
+      steps.config.outputs.key
+      }}
+
+runs:
+  using: composite
+
+  steps:
+    - id: config
+      shell: bash
+      run: |
+        eval $(grep -e '^arch *=' -e '^ruby_version *=' -e '^DLEXT *=' Makefile |
+            sed 's/ *= */=/')
+        case "${ruby_version}" in
+        *+*) key=capiexts-${arch}-${ruby_version}-${{ hashFiles('src/spec/ruby/optional/capi/ext/*.[ch]') }};;
+        *)   key=;;
+        esac
+        echo version=$ruby_version >> $GITHUB_OUTPUT
+        echo key="$key" >> $GITHUB_OUTPUT
+        echo DLEXT=$DLEXT >> $GITHUB_OUTPUT
+      working-directory: ${{ inputs.builddir }}
+
+    - name: Restore previous CAPI extensions
+      uses: actions/cache/restore@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+      id: cache
+      with:
+        path: ${{ inputs.builddir }}/spec/ruby/optional/capi/ext/
+        key: ${{ steps.config.outputs.key }}
+      if: ${{ steps.config.outputs.key }}
+
+    - name: Run test-spec with previous CAPI extension binaries
+      id: check
+      shell: bash
+      run: | # zizmor: ignore[template-injection]
+        touch spec/ruby/optional/capi/ext/*.$DLEXT
+        [ ! -f spec/ruby/optional/capi/ext/\*.$DLEXT ]
+        ${{ inputs.make }} SPECOPTS=optional/capi test-spec
+      env:
+        DLEXT: ${{ steps.config.outputs.DLEXT }}
+      working-directory: ${{ inputs.builddir }}
+      if: ${{ steps.cache.outputs.cache-hit }}
+
+    - name: Strip CAPI extensions
+      id: strip
+      shell: bash
+      run: |
+        rm -f spec/ruby/optional/capi/ext/*.c
+        [ "$DLEXT" = bundle ] || # separated to .dSYM directories
+        strip spec/ruby/optional/capi/ext/*.$DLEXT
+      env:
+        DLEXT: ${{ steps.config.outputs.DLEXT }}
+      working-directory: ${{ inputs.builddir }}
+      if: >-
+        ${{true
+        && ! steps.cache.outputs.cache-hit
+        && github.ref_name == 'master'
+        }}
+
+    - name: Save CAPI extensions
+      uses: actions/cache/save@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+      with:
+        path: ${{ inputs.builddir }}/spec/ruby/optional/capi/ext/
+        key: ${{ steps.config.outputs.key }}
+      if: ${{ steps.strip.outcome == 'success' }}
+
+    - shell: bash
+      run: |
+        echo "::error::Change from ${prev} detected; bump up ABI version"
+      env:
+        prev: ${{ steps.config.outputs.version }}
+      if: ${{ always() && steps.check.outcome == 'failure' }}
diff --git a/.github/actions/compilers/action.yml b/.github/actions/compilers/action.yml
new file mode 100644
index 0000000000..c700bbfe9e
--- /dev/null
+++ b/.github/actions/compilers/action.yml
@@ -0,0 +1,164 @@
+name: Compiles ruby in a container
+description: >-
+  Makes ruby using a dedicated container
+
+inputs:
+  tag:
+    required: false
+    default: clang-20
+    description: >-
+      container image tag to use in this run.
+
+  with_gcc:
+    required: false
+    description: >-
+      override compiler path & flags.
+
+  CFLAGS:
+    required: false
+    description: >-
+      C compiler flags to override.
+
+  CXXFLAGS:
+    required: false
+    description: >-
+      C++ compiler flags to override.
+
+  optflags:
+    required: false
+    # -O1 is faster than -O3 in our tests... Majority of time are consumed trying
+    # to optimize binaries.  Also GitHub Actions run on relatively modern CPUs
+    # compared to, say, GCC 4 or Clang 3.  We don't specify `-march=native`
+    # because compilers tend not understand what the CPU is.
+    default: '-O1'
+    description: >-
+      Compiler flags for optimisations.
+
+  cppflags:
+    required: false
+    description: >-
+      Additional preprocessor flags.
+
+  append_configure:
+    required: false
+    default: >-
+      --without-valgrind
+      --without-jemalloc
+      --without-gmp
+    description: >-
+      flags to append to configure.
+
+  enable_shared:
+    required: false
+    default: true
+    description: >-
+      Whether to build libruby.so.
+
+  check:
+    required: false
+    default: ''
+    description: >-
+      Whether to run `make check`
+
+  test_all:
+    required: false
+    default: ''
+    description: >-
+      Whether to run `make test-all` with options for test-all.
+
+  test_spec:
+    required: false
+    default: ''
+    description: >-
+      Whether to run `make test-spec` with options for mspec.
+
+  static_exts:
+    required: false
+    description: >-
+      whitespace separated list of extensions that need be linked statically.
+
+runs:
+  using: composite
+  steps:
+    - shell: bash
+      run: docker pull --quiet "ghcr.io/ruby/ruby-ci-image:${INPUT_TAG}"
+      env:
+        INPUT_TAG: ${{ inputs.tag }}
+
+    - name: Enable Launchable conditionally
+      id: enable-launchable
+      run: echo "enable-launchable=true" >> $GITHUB_OUTPUT
+      shell: bash
+      if: >-
+        ${{
+        github.repository == 'ruby/ruby' ||
+        (github.repository != 'ruby/ruby' && env.LAUNCHABLE_TOKEN)
+        }}
+
+    - name: compile
+      shell: bash
+      run: >-
+        docker run
+        --rm
+        --user=root
+        --volume "${GITHUB_WORKSPACE}:/github/workspace:ro"
+        --workdir=/github/workspace
+        --entrypoint=/github/workspace/.github/actions/compilers/entrypoint.sh
+        --env CI
+        --env GITHUB_ACTION
+        --env INPUT_WITH_GCC
+        --env INPUT_CFLAGS
+        --env INPUT_CXXFLAGS
+        --env INPUT_OPTFLAGS
+        --env INPUT_CPPFLAGS
+        --env INPUT_APPEND_CONFIGURE
+        --env INPUT_CHECK
+        --env INPUT_TEST_ALL
+        --env INPUT_TEST_SPEC
+        --env INPUT_ENABLE_SHARED
+        --env INPUT_STATIC_EXTS
+        --env LAUNCHABLE_ORGANIZATION
+        --env LAUNCHABLE_WORKSPACE
+        --env LAUNCHABLE_ENABLED
+        --env GITHUB_PR_HEAD_SHA
+        --env GITHUB_PULL_REQUEST_URL
+        --env GITHUB_REF
+        --env GITHUB_ACTIONS
+        --env GITHUB_RUN_ID
+        --env GITHUB_REPOSITORY
+        --env GITHUB_WORKFLOW
+        --env GITHUB_RUN_NUMBER
+        --env GITHUB_EVENT_NAME
+        --env GITHUB_SHA
+        --env GITHUB_HEAD_REF
+        --env GITHUB_SERVER_URL
+        "ghcr.io/ruby/ruby-ci-image:${INPUT_TAG}"
+      env:
+        INPUT_TAG: ${{ inputs.tag }}
+        INPUT_WITH_GCC: ${{ inputs.with_gcc || inputs.tag }}
+        INPUT_CFLAGS: ${{ inputs.CFLAGS }}
+        INPUT_CXXFLAGS: ${{ inputs.CXXFLAGS }}
+        INPUT_OPTFLAGS: ${{ inputs.OPTFLAGS }}
+        INPUT_CPPFLAGS: ${{ inputs.cppflags }}
+        INPUT_APPEND_CONFIGURE: ${{ inputs.append_configure }}
+        INPUT_CHECK: ${{ inputs.check }}
+        INPUT_TEST_ALL: ${{ inputs.test_all }}
+        INPUT_TEST_SPEC: ${{ inputs.test_spec }}
+        INPUT_ENABLE_SHARED: ${{ inputs.enable_shared }}
+        INPUT_STATIC_EXTS: ${{ inputs.static_exts }}
+        LAUNCHABLE_ORGANIZATION: ${{ github.repository_owner }}
+        LAUNCHABLE_WORKSPACE: ${{ github.event.repository.name }}
+        LAUNCHABLE_ENABLED: ${{ steps.enable-launchable.outputs.enable-launchable || false }}
+        GITHUB_PR_HEAD_SHA: ${{ github.event.pull_request.head.sha || github.sha }}
+        GITHUB_PULL_REQUEST_URL: ${{ github.event.pull_request.html_url }}
+        GITHUB_REF: ${{ github.ref }}
+
+    # Clean up non-default docker images to save disk space.
+    # The default image (clang-20) is reused across multiple steps
+    # within the same job, so we keep it to avoid redundant pulls.
+    - name: clean up docker image
+      shell: bash
+      run: docker rmi "ghcr.io/ruby/ruby-ci-image:${INPUT_TAG}" || true
+      if: ${{ always() && inputs.tag != 'clang-20' }}
+      env:
+        INPUT_TAG: ${{ inputs.tag }}
diff --git a/.github/actions/compilers/entrypoint.sh b/.github/actions/compilers/entrypoint.sh
new file mode 100755
index 0000000000..b554151091
--- /dev/null
+++ b/.github/actions/compilers/entrypoint.sh
@@ -0,0 +1,90 @@
+#! /bin/bash
+
+# Copyright (c) 2024 Ruby developers.  All rights reserved.
+#
+# This file is  a part of the programming language  Ruby.  Permission is hereby
+# granted, to  either redistribute and/or  modify this file, provided  that the
+# conditions  mentioned in  the file  COPYING are  met.  Consult  the file  for
+# details.
+
+grouped()
+{
+    echo "::group::${@}"
+    "${@}"
+    echo "::endgroup::"
+}
+
+set -e
+set -u
+set -o pipefail
+
+srcdir="/github/workspace/src"
+builddir="$(mktemp -dt)"
+
+export GITHUB_WORKFLOW='Compilations'
+export CONFIGURE_TTY='never'
+export RUBY_DEBUG='ci rgengc'
+export RUBY_TESTOPTS='-q --color=always --tty=no'
+export RUBY_DEBUG_COUNTER_DISABLE='1'
+export GNUMAKEFLAGS="-j$((1 + $(nproc)))"
+
+case "x${INPUT_ENABLE_SHARED}" in
+x | xno | xfalse )
+    enable_shared='--disable-shared'
+    ;;
+*)
+    enable_shared='--enable-shared'
+    ;;
+esac
+
+pushd ${builddir}
+
+grouped git config --global --add safe.directory ${srcdir}
+
+grouped ${srcdir}/configure        \
+    -C                             \
+    --with-gcc="${INPUT_WITH_GCC}" \
+    --enable-debug-env             \
+    --disable-install-doc          \
+    --with-ext=-test-/cxxanyargs,+ \
+    --without-git                  \
+    ${enable_shared}               \
+    ${INPUT_APPEND_CONFIGURE}      \
+    CFLAGS="${INPUT_CFLAGS}"       \
+    CXXFLAGS="${INPUT_CXXFLAGS}"   \
+    optflags="${INPUT_OPTFLAGS}"   \
+    cppflags="${INPUT_CPPFLAGS}"   \
+    debugflags='-ggdb3' # -g0 disables backtraces when SEGV.  Do not set that.
+
+popd
+
+if [[ -n "${INPUT_STATIC_EXTS}" ]]; then
+    echo "::group::ext/Setup"
+    set -x
+    mkdir ${builddir}/ext
+    (
+        for ext in ${INPUT_STATIC_EXTS}; do
+            echo "${ext}"
+        done
+    ) >> ${builddir}/ext/Setup
+    set +x
+    echo "::endgroup::"
+fi
+
+if [ -n "$INPUT_TEST_ALL" ]; then
+  tests=" -- $INPUT_TEST_ALL"
+else
+  tests=" -- ruby -ext-"
+fi
+
+pushd ${builddir}
+
+grouped make showflags
+grouped make all
+# grouped make install
+
+# Run only `make test` by default. Run other tests if specified.
+grouped make test
+if [[ -n "$INPUT_CHECK" ]]; then grouped make test-tool; fi
+if [[ -n "$INPUT_CHECK" || -n "$INPUT_TEST_ALL" ]]; then grouped make test-all TESTS="$tests"; fi
+if [[ -n "$INPUT_CHECK" || -n "$INPUT_TEST_SPEC" ]]; then grouped env CHECK_LEAKS=true make test-spec MSPECOPT="$INPUT_TEST_SPEC"; fi
diff --git a/.github/actions/launchable/setup/action.yml b/.github/actions/launchable/setup/action.yml
new file mode 100644
index 0000000000..305878492c
--- /dev/null
+++ b/.github/actions/launchable/setup/action.yml
@@ -0,0 +1,337 @@
+name: Set up Launchable
+description: >-
+  Install the required dependencies and execute the necessary Launchable commands for test recording
+
+inputs:
+  os:
+    required: true
+    description: The operating system that CI runs on. This value is used in Launchable flavor.
+
+  test-opts:
+    default: none
+    required: false
+    description: >-
+      Test options that determine how tests are run.
+      This value is used in the Launchable flavor.
+
+  launchable-token:
+    required: false
+    description: >-
+      Launchable token is needed if you want to run Launchable on your forked repository.
+      See https://github.com/ruby/ruby/wiki/CI-Servers#launchable-ci for details.
+
+  builddir:
+    required: false
+    default: ${{ github.workspace }}
+    description: >-
+      Directory to create Launchable report file.
+
+  srcdir:
+    required: false
+    default: ${{ github.workspace }}
+    description: >-
+      Directory to (re-)checkout source codes. Launchable retrieves the commit information
+      from the directory.
+
+  test-task:
+    required: false
+    default: ${{ matrix.test_task }}
+    description: >-
+      Specifies a single test task to be executed.
+      This value is used in the Launchable flavor.
+      Either 'test-task' or 'multi-test-tasks' must be configured.
+
+  test-tasks:
+    required: false
+    default: '[]'
+    description: >-
+      Specifies an array of multiple test tasks to be executed.
+      For example: '["test", "test-all"]'.
+      If you want to run a single test task, use the 'test-task' input instead.
+
+  is-yjit:
+    required: false
+    default: 'false'
+    description: >-
+      Whether this workflow is executed on YJIT.
+
+  is-zjit:
+    required: false
+    default: 'false'
+    description: >-
+      Whether this workflow is executed on ZJIT.
+
+outputs:
+  stdout_report_path:
+    value: ${{ steps.global.outputs.stdout_report_path }}
+    description: >-
+      Report file path for standard output.
+
+  stderr_report_path:
+    value: ${{ steps.global.outputs.stderr_report_path }}
+    description: >-
+      Report file path for standard error.
+
+runs:
+  using: composite
+
+  steps:
+    - name: Enable Launchable conditionally
+      id: enable-launchable
+      run: echo "enable-launchable=true" >> $GITHUB_OUTPUT
+      shell: bash
+      if: >-
+        ${{
+        (github.repository == 'ruby/ruby'
+          || (github.repository != 'ruby/ruby'
+          && env.LAUNCHABLE_TOKEN))
+        && (inputs.test-task == 'check'
+          || inputs.test-task == 'test-all'
+          || inputs.test-task == 'test'
+          || contains(fromJSON(inputs.test-tasks), 'test-all')
+          || contains(fromJSON(inputs.test-tasks), 'test'))
+        }}
+
+    # Launchable CLI requires Python and Java.
+    # https://www.launchableinc.com/docs/resources/cli-reference/
+    - name: Set up Python
+      uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      with:
+        python-version: "3.x"
+      if: >-
+        ${{ steps.enable-launchable.outputs.enable-launchable
+        && !endsWith(inputs.os, 'ppc64le') && !endsWith(inputs.os, 's390x') }}
+
+    - name: Set up Java
+      uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4.8.0
+      with:
+        distribution: 'temurin'
+        java-version: '17'
+      if: >-
+        ${{ steps.enable-launchable.outputs.enable-launchable
+        && !endsWith(inputs.os, 'ppc64le') && !endsWith(inputs.os, 's390x') }}
+
+    - name: Set up Java ppc64le
+      uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4.8.0
+      with:
+        distribution: 'semeru'
+        architecture: 'ppc64le'
+        java-version: '17'
+      if: >-
+        ${{ steps.enable-launchable.outputs.enable-launchable
+        && endsWith(inputs.os, 'ppc64le') }}
+
+    - name: Set up Java s390x
+      uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4.8.0
+      with:
+        distribution: 'semeru'
+        architecture: 's390x'
+        java-version: '17'
+      if: >-
+        ${{ steps.enable-launchable.outputs.enable-launchable
+        && endsWith(inputs.os, 's390x') }}
+
+    - name: Set global vars
+      id: global
+      shell: bash
+      run: |
+        test_all_enabled="${{ inputs.test-task == 'check' ||  inputs.test-task == 'test-all' || contains(fromJSON(inputs.test-tasks), 'test-all') }}"
+        btest_enabled="${{ inputs.test-task == 'check' ||  inputs.test-task == 'test' || contains(fromJSON(inputs.test-tasks), 'test') }}"
+        test_spec_enabled="${{ inputs.test-task == 'check' ||  inputs.test-task == 'test-spec' || contains(fromJSON(inputs.test-tasks), 'test-spec') }}"
+        echo test_all_enabled="${test_all_enabled}" >> $GITHUB_OUTPUT
+        echo btest_enabled="${btest_enabled}" >> $GITHUB_OUTPUT
+        echo test_spec_enabled="${test_spec_enabled}" >> $GITHUB_OUTPUT
+        echo test_all_report_file='launchable_test_all_report.json' >> $GITHUB_OUTPUT
+        echo btest_report_file='launchable_btest_report.json' >> $GITHUB_OUTPUT
+        echo test_spec_report_dir='launchable_test_spec_report' >> $GITHUB_OUTPUT
+        echo stdout_report_path="launchable_stdout.log" >> $GITHUB_OUTPUT
+        echo stderr_report_path="launchable_stderr.log" >> $GITHUB_OUTPUT
+      if: steps.enable-launchable.outputs.enable-launchable
+
+    - name: Set environment variables for Launchable
+      shell: bash
+      run: | # zizmor: ignore[github-env]
+        : # GITHUB_PULL_REQUEST_URL are used for commenting test reports in Launchable Github App.
+        : # https://github.com/launchableinc/cli/blob/v1.80.1/launchable/utils/link.py#L42
+        echo "GITHUB_PULL_REQUEST_URL=${INPUT_PR_HTML_URL}" >> $GITHUB_ENV
+        : # The following envs are necessary in Launchable tokenless authentication.
+        : # https://github.com/launchableinc/cli/blob/v1.80.1/launchable/utils/authentication.py#L20
+        echo "LAUNCHABLE_ORGANIZATION=${INPUT_REPOSITORY_OWNER}" >> $GITHUB_ENV
+        echo "LAUNCHABLE_WORKSPACE=${INPUT_REPOSITORY_NAME}" >> $GITHUB_ENV
+        : # https://github.com/launchableinc/cli/blob/v1.80.1/launchable/utils/authentication.py#L71
+        echo "GITHUB_PR_HEAD_SHA=${INPUT_PR_HEAD_SHA}" >> $GITHUB_ENV
+        echo "LAUNCHABLE_TOKEN=${INPUT_LAUNCHABLE_TOKEN}" >> $GITHUB_ENV
+        : # To prevent a slowdown in CI, disable request retries when the Launchable server is unstable.
+        echo "LAUNCHABLE_SKIP_TIMEOUT_RETRY=1" >> $GITHUB_ENV
+        echo "LAUNCHABLE_COMMIT_TIMEOUT=1" >> $GITHUB_ENV
+      env:
+        INPUT_PR_HTML_URL: ${{ github.event.pull_request.html_url }}
+        INPUT_REPOSITORY_OWNER: ${{ github.repository_owner }}
+        INPUT_REPOSITORY_NAME: ${{ github.event.repository.name }}
+        INPUT_PR_HEAD_SHA: ${{ github.event.pull_request.head.sha || github.sha }}
+        INPUT_LAUNCHABLE_TOKEN: ${{ inputs.launchable-token }}
+      if: steps.enable-launchable.outputs.enable-launchable
+
+    - name: Set up path
+      shell: bash
+      working-directory: ${{ inputs.srcdir }}
+      # Since updated PATH variable will be available in only subsequent actions, we need to add the path beforehand.
+      # https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#adding-a-system-path
+      run: echo "$(python -msite --user-base)/bin" >> $GITHUB_PATH # zizmor: ignore[github-env]
+      if: >-
+        ${{
+        steps.enable-launchable.outputs.enable-launchable
+        && (startsWith(inputs.os, 'macos')
+          || endsWith(inputs.os, 'ppc64le')
+          || endsWith(inputs.os, 's390x'))
+        }}
+
+    - name: Set up Launchable
+      id: setup-launchable
+      shell: bash
+      working-directory: ${{ inputs.srcdir }}
+      run: | # zizmor: ignore[github-env]
+        set -x
+        pip install --user launchable
+        : # The build name cannot include a slash, so we replace the string here.
+        github_ref="${INPUT_GITHUB_REF}"
+        github_ref="${github_ref//\//_}"
+        : # With the --name option, we need to configure a unique identifier for this build.
+        : # To avoid setting the same build name as the CI which runs on other branches, we use the branch name here.
+        build_name="${github_ref}_${GITHUB_PR_HEAD_SHA}"
+        test_opts="${INPUT_TEST_OPTS}"
+        test_opts="${test_opts// /}"
+        test_opts="${test_opts//=/:}"
+        test_all_test_suite='test-all'
+        btest_test_suite='btest'
+        test_spec_test_suite='test-spec'
+        if [ "${INPUT_IS_YJIT}" = "true" ]; then
+          test_all_test_suite="yjit-${test_all_test_suite}"
+          btest_test_suite="yjit-${btest_test_suite}"
+          test_spec_test_suite="yjit-${test_spec_test_suite}"
+        fi
+        if [ "${INPUT_IS_ZJIT}" = "true" ]; then
+          test_all_test_suite="zjit-${test_all_test_suite}"
+          btest_test_suite="zjit-${btest_test_suite}"
+          test_spec_test_suite="zjit-${test_spec_test_suite}"
+        fi
+        # launchable_setup target var -- refers ${target} prefixed variables
+        launchable_setup() {
+          local target=$1 session
+          eval [ "\${${target}_enabled}" = "true" ] || return
+          eval local suite=\${${target}_test_suite}
+          session=$(launchable record session \
+            --build "${build_name}" \
+            --observation \
+            --flavor os="${INPUT_OS}" \
+            --flavor test_task="${INPUT_TEST_TASK}" \
+            --flavor test_opts="${test_opts}" \
+            --flavor workflow="${INPUT_WORKFLOW}" \
+            --test-suite ${suite} \
+            )
+          echo "${target}_session=${session}" >> $GITHUB_OUTPUT
+        }
+
+        launchable record build --name "${build_name}"
+        if launchable_setup test_all; then
+          echo "TESTS=${TESTS:+$TESTS }--launchable-test-reports=${test_all_report_file}" >> $GITHUB_ENV
+        fi
+        if launchable_setup btest; then
+          echo "BTESTS=${BTESTS:+$BTESTS }--launchable-test-reports=${btest_report_file}" >> $GITHUB_ENV
+        fi
+        if launchable_setup test_spec; then
+          echo "SPECOPTS=${SPECOPTS:$SPECOPTS }--launchable-test-reports=${test_spec_report_dir}" >> $GITHUB_ENV
+          echo test_spec_enabled=true >> $GITHUB_OUTPUT
+        fi
+
+        echo launchable_setup_dir=$(pwd) >> $GITHUB_OUTPUT
+      if: steps.enable-launchable.outputs.enable-launchable
+      env:
+        INPUT_GITHUB_REF: ${{ github.ref }}
+        INPUT_TEST_OPTS: ${{ inputs.test-opts }}
+        INPUT_IS_YJIT: ${{ inputs.is-yjit }}
+        INPUT_IS_ZJIT: ${{ inputs.is-zjit }}
+        INPUT_OS: ${{ inputs.os }}
+        INPUT_TEST_TASK: ${{ inputs.test-task }}
+        INPUT_WORKFLOW: ${{ github.workflow }}
+        test_all_enabled: ${{ steps.global.outputs.test_all_enabled }}
+        btest_enabled: ${{ steps.global.outputs.btest_enabled }}
+        test_spec_enabled: ${{ steps.global.outputs.test_spec_enabled }}
+        test_all_report_file: ${{ steps.global.outputs.test_all_report_file }}
+        btest_report_file: ${{ steps.global.outputs.btest_report_file }}
+        test_spec_report_dir: ${{ steps.global.outputs.test_spec_report_dir }}
+
+    - name: make test-spec report directory in build directory
+      shell: bash
+      working-directory: ${{ inputs.builddir }}
+      run: mkdir "${test_spec_report_dir}"
+      if: ${{ steps.setup-launchable.outputs.test_spec_enabled == 'true' }}
+      env:
+        test_spec_report_dir: ${{ steps.global.outputs.test_spec_report_dir }}
+
+    - name: Clean up test results in Launchable
+      uses: gacts/run-and-post-run@81b6ce503cde93862cec047c54652e45c5dca991 # v1.4.3
+      with:
+        shell: bash
+        working-directory: ${{ inputs.builddir }}
+        post: |
+          rm -f "${test_all_report_file}"
+          rm -f "${btest_report_file}"
+          rm -fr "${test_spec_report_dir}"
+          rm -f launchable_stdout.log
+          rm -f launchable_stderr.log
+      if: always() && steps.setup-launchable.outcome == 'success'
+      env:
+        test_all_report_file: ${{ steps.global.outputs.test_all_report_file }}
+        btest_report_file: ${{ steps.global.outputs.btest_report_file }}
+        test_spec_report_dir: ${{ steps.global.outputs.test_spec_report_dir }}
+
+    - name: Record test results in Launchable
+      uses: gacts/run-and-post-run@81b6ce503cde93862cec047c54652e45c5dca991 # v1.4.3
+      with:
+        shell: bash
+        working-directory: ${{ inputs.builddir }}
+        post: |
+          if [[ "${test_all_enabled}" = "true" ]]; then \
+            launchable record attachment \
+              --session "${test_all_session}" \
+              "${stdout_report_path}" \
+              "${stderr_report_path}"; \
+            launchable record tests \
+              --session "${test_all_session}" \
+              raw "${test_all_report_file}" || true; \
+          fi
+
+          if [[ "${btest_enabled}" = "true" ]]; then \
+            launchable record attachment \
+              --session "${btest_session}" \
+              "${stdout_report_path}" \
+              "${stderr_report_path}"; \
+            launchable record tests \
+              --session "${btest_session}" \
+              raw "${btest_report_file}" || true; \
+          fi
+
+          if [[ "${test_spec_enabled}" = "true" ]]; then \
+            launchable record attachment \
+              --session "${test_spec_session}" \
+              "${stdout_report_path}" \
+              "${stderr_report_path}"; \
+            launchable record tests \
+              --session "${test_spec_session}" \
+              raw ${test_spec_report_dir}/* || true; \
+          fi
+      if: ${{ always() && steps.setup-launchable.outcome == 'success' }}
+      env:
+        test_all_report_file: ${{ steps.global.outputs.test_all_report_file }}
+        btest_report_file: ${{ steps.global.outputs.btest_report_file }}
+        test_spec_report_dir: ${{ steps.global.outputs.test_spec_report_dir }}
+        test_all_enabled: ${{ steps.global.outputs.test_all_enabled }}
+        btest_enabled: ${{ steps.global.outputs.btest_enabled }}
+        test_spec_enabled: ${{ steps.global.outputs.test_spec_enabled }}
+        test_all_session: ${{ steps.setup-launchable.outputs.test_all_session }}
+        btest_session: ${{ steps.setup-launchable.outputs.btest_session }}
+        test_spec_session: ${{ steps.setup-launchable.outputs.test_spec_session }}
+        stdout_report_path: ${{ steps.global.outputs.stdout_report_path }}
+        stderr_report_path: ${{ steps.global.outputs.stderr_report_path }}
+        LAUNCHABLE_SETUP_DIR: ${{ steps.setup-launchable.outputs.launchable_setup_dir }}
diff --git a/.github/actions/make-snapshot/action.yml b/.github/actions/make-snapshot/action.yml
new file mode 100644
index 0000000000..4552f0e067
--- /dev/null
+++ b/.github/actions/make-snapshot/action.yml
@@ -0,0 +1,77 @@
+name: 'make-snapshot'
+description: 'Make snapshot tarballs'
+inputs:
+  archname:
+    description: 'archname passed to tool/make-snapshot (e.g. snapshot-master)'
+    required: true
+  version:
+    description: 'Target Version'
+    required: false
+  shallow-since:
+    description: 'git fetch --shallow-since'
+    required: true
+    default: '2018-12-25 00:00:00'
+  fetch-branch:
+    description: 'fetch branch'
+    required: false
+  srcdir:
+    description: 'srcdir for tool/make-snapshot. Empty = clone ruby/ruby into ./ruby.'
+    required: false
+    default: ''
+  upload-artifact:
+    description: 'Upload Packages and Info as workflow artifacts. Pass "false" when callers run in a matrix that would collide on artifact names.'
+    required: false
+    default: 'true'
+
+runs:
+  using: "composite"
+  steps:
+    - name: Install libraries
+      run: |
+        set -x
+        sudo apt-get update -q || :
+        sudo apt-get install --no-install-recommends -q -y build-essential git bison autoconf ruby p7zip-full curl
+      shell: bash
+    - name: Checkout ruby/ruby for tool/make-snapshot
+      if: inputs.srcdir == ''
+      run: git clone --single-branch --depth=1 https://github.com/ruby/ruby ruby
+      shell: bash
+    - name: Fetch branches and notes (clone mode)
+      if: inputs.srcdir == ''
+      env:
+        SHALLOW_SINCE: ${{ inputs.shallow-since }}
+        FETCH_BRANCH: ${{ inputs.fetch-branch }}
+      run: |
+        set -x
+        cd ruby
+        git fetch --shallow-since="$SHALLOW_SINCE"
+        [ -n "$FETCH_BRANCH" ] && git fetch origin "+$FETCH_BRANCH:$FETCH_BRANCH"
+        git fetch origin '+refs/notes/commits:refs/notes/commits'
+        git fetch origin '+refs/notes/log-fix:refs/notes/log-fix'
+      shell: bash
+    - name: Fetch notes (local srcdir mode)
+      if: inputs.srcdir != ''
+      working-directory: ${{ inputs.srcdir }}
+      run: |
+        git fetch origin '+refs/notes/commits:refs/notes/commits' || :
+        git fetch origin '+refs/notes/log-fix:refs/notes/log-fix' || :
+      shell: bash
+    - name: Make snapshot
+      env:
+        ARCHNAME: ${{ inputs.archname }}
+        SRCDIR: ${{ inputs.srcdir }}
+        VERSION: ${{ inputs.version }}
+      run: |
+        [ -z "$SRCDIR" ] && SRCDIR=ruby
+        ruby "$SRCDIR/tool/make-snapshot" "-archname=$ARCHNAME" -srcdir="$SRCDIR" -packages=gzip,xz,zip pkg $VERSION
+      shell: bash
+    - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+      with:
+        name: Packages
+        path: pkg
+      if: ${{ inputs.upload-artifact == 'true' }}
+    - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+      with:
+        name: Info
+        path: pkg/info
+      if: ${{ inputs.upload-artifact == 'true' }}
diff --git a/.github/actions/setup/baseruby/action.yml b/.github/actions/setup/baseruby/action.yml
new file mode 100644
index 0000000000..76fe068897
--- /dev/null
+++ b/.github/actions/setup/baseruby/action.yml
@@ -0,0 +1,73 @@
+name: Setup directories etc.
+description: >-
+  Build baseruby for cross-compiling
+
+inputs:
+  srcdir:
+    required: true
+    default: ${{ github.workspace }}
+    description: >-
+      Directory of source codes.
+
+  builddir:
+    required: false
+    default: ${{ github.workspace }}/baseruby
+    description: >-
+      Where baseruby will be built.
+
+  installdir:
+    required: false
+    default: install
+    description: >-
+      The path where the baseruby will be installed to.
+      This is relative from the workspace.
+
+outputs:
+  ruby:
+    value: ${{ steps.build.outputs.installdir }}/bin/ruby
+    description: >-
+      The path of the executable baseruby.
+  dump_ast:
+    value: ${{ steps.build.outputs.installdir }}/bin/dump_ast
+    description: >-
+      The path of the executable dump_ast.
+
+runs:
+  using: composite
+
+  steps:
+    - name: Build baseruby
+      shell: bash
+      id: build
+      run: |
+        case "$installdir" in /*) ;; *) installdir="$PWD/$installdir";; esac
+        mkdir "$builddir"
+        ln -sr "$srcdir" "$builddir/.src"
+        pushd "$builddir"
+        .src/configure "--prefix=${installdir}" --disable-install-doc
+        CONFIGURE_ARGS=--with-out-ext=-test- make install
+        install dump_ast "${installdir}/bin"
+        {
+          echo "${installdir}/bin/dump_ast"
+          echo "${installdir}/.installed.list"
+          echo "${installdir}/"
+        } >> .installed.list
+        cp .installed.list "${installdir}/"
+        make distclean
+        rm .src
+        popd
+        rmdir "$builddir"
+        {
+          echo "installdir=${installdir}"
+        } | tee -a "$GITHUB_OUTPUT"
+      env:
+        srcdir: ${{ inputs.srcdir }}
+        builddir: ${{ inputs.builddir }}
+        installdir: ${{ inputs.installdir }}
+
+    - name: clean
+      uses: gacts/run-and-post-run@598d7a875d5620e0457490555b5e18e46082aa47 # v1.4.4
+      with:
+        working-directory: ${{ inputs.srcdir }}
+        post: |
+          ruby tool/rbuninstall.rb "${{ steps.build.outputs.installdir }}/.installed.list" > /dev/null
diff --git a/.github/actions/setup/directories/action.yml b/.github/actions/setup/directories/action.yml
new file mode 100644
index 0000000000..15dc097b6e
--- /dev/null
+++ b/.github/actions/setup/directories/action.yml
@@ -0,0 +1,205 @@
+name: Setup directories etc.
+description: >-
+  Set up the source code and build directories (plus some
+  environmental tweaks)
+
+inputs:
+  srcdir:
+    required: false
+    default: ${{ github.workspace }}
+    description: >-
+      Directory to (re-)checkout source codes.  This will be created
+      if absent.  If there is no `configure` file that is also
+      generated inside.
+
+  builddir:
+    required: false
+    default: ${{ github.workspace }}
+    description: >-
+      Where binaries and other generated contents go.  This will be
+      created if absent.
+
+  make-command:
+    required: false
+    type: string
+    default: 'make'
+    description: >-
+      The command of `make`.
+
+  makeup:
+    required: false
+    type: boolean
+    # Note that `default: false` evaluates to a string constant
+    # `'false'`, which is a truthy value :sigh:
+    # https://github.com/actions/runner/issues/2238
+    default: ''
+    description: >-
+      If set to true, additionally runs `make up`.
+
+  checkout:
+    required: false
+    type: boolean
+    default: true
+    description: >-
+      If set to '' (false), skip running actions/checkout. This is useful when
+      you don't want to overwrite a GitHub token that is already set up.
+
+  dummy-files:
+    required: false
+    type: boolean
+    default: ''
+    description: >-
+      If set to true, creates dummy files in build dir.
+
+  fetch-depth:
+    required: false
+    default: '1'
+    description: The depth of commit history fetched from the remote repository
+
+  clean:
+    required: false
+    type: boolean
+    default: ''
+    description: >-
+      If set to true, clean build directory.
+
+outputs: {} # nothing?
+
+runs:
+  using: composite
+
+  steps:
+    # Note that `shell: bash` works on both Windows and Linux, but not
+    # `shell: sh`.  This is because GitHub hosted Windows runners have
+    # their bash manually installed.
+    - shell: bash
+      run: |
+        mkdir -p "${INPUT_SRCDIR}"
+        mkdir -p "${INPUT_BUILDDIR}"
+      env:
+        INPUT_SRCDIR: ${{ inputs.srcdir }}
+        INPUT_BUILDDIR: ${{ inputs.builddir }}
+
+    # Did you know that actions/checkout works without git(1)?  We are
+    # checking that here.
+    - id: which
+      shell: bash
+      run: |
+        echo "git=`command -v git`" >> "$GITHUB_OUTPUT"
+        echo "sudo=`sudo true && command -v sudo`" >> "$GITHUB_OUTPUT"
+        echo "autoreconf=`command -v autoreconf`" >> "$GITHUB_OUTPUT"
+
+    - if: steps.which.outputs.git
+      shell: bash
+      run: |
+        git config --global core.autocrlf false
+        git config --global core.eol lf
+        git config --global advice.detachedHead 0
+        git config --global init.defaultBranch garbage
+
+    - if: inputs.checkout
+      uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      with:
+        path: ${{ inputs.srcdir }}
+        fetch-depth: ${{ inputs.fetch-depth }}
+        persist-credentials: false
+
+    - uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      with:
+        path: ${{ inputs.srcdir }}/.downloaded-cache
+        key: ${{ runner.os }}-${{ runner.arch }}-downloaded-cache
+
+    - if: steps.which.outputs.autoreconf
+      shell: bash
+      working-directory: ${{ inputs.srcdir }}
+      run: ./autogen.sh --install
+
+    # This is for MinGW.
+    - if: runner.os == 'Windows'
+      shell: bash
+      run: echo "GNUMAKEFLAGS=-j$((2 * NUMBER_OF_PROCESSORS))" >> $GITHUB_ENV # zizmor: ignore[github-env]
+
+    - if: runner.os == 'Linux'
+      shell: bash
+      run: echo "GNUMAKEFLAGS=-sj$((1 + $(nproc)))" >> "$GITHUB_ENV" # zizmor: ignore[github-env]
+
+    # macOS' GNU make is so old that they doesn't understand `GNUMAKEFLAGS`.
+    - if: runner.os == 'macOS'
+      shell: bash
+      run: echo "MAKEFLAGS=-j$((1 + $(sysctl -n hw.activecpu)))" >> "$GITHUB_ENV" # zizmor: ignore[github-env]
+
+    - if: inputs.makeup
+      shell: bash
+      working-directory: ${{ inputs.srcdir }}
+      run: |
+        touch config.status .rbconfig.time
+        for mk in Makefile GNUmakefile; do
+          sed -f tool/prereq.status template/$mk.in > $mk
+        done
+        make up
+
+    # Cleanup, runs even on failure
+    - if: always() && inputs.makeup
+      shell: bash
+      working-directory: ${{ inputs.srcdir }}
+      run: |
+        rm -f config.status .rbconfig.time \
+          Makefile GNUmakefile uncommon.mk enc.mk noarch-fake.rb
+        rm -f prism/.time prism/util/.time
+
+    - if: steps.which.outputs.sudo
+      shell: bash
+      run: |
+        sudo chmod -R go-w /usr/share
+        chmod -v go-w $HOME $HOME/.config || :
+        declare -a dirs # -A is not supported by old bash, e.g. macos
+        SAVE_IFS="$IFS" IFS=:; set $PATH
+        for d do
+          while [ -d "$d" ]; do
+            case "$IFS${dirs[*]}$IFS" in *"$IFS$d$IFS"*) ;; *) dirs+=("$d");; esac
+            d="${d%/*}"
+          done
+        done
+        IFS="$SAVE_IFS"
+        sudo chmod -v go-w "${dirs[@]}" || :
+
+    - if: inputs.dummy-files == 'true'
+      shell: bash
+      id: dummy-files
+      working-directory: ${{ inputs.builddir }}
+      run: |
+        : Create dummy files in build dir
+        set {{a..z},{A..Z},{0..9},foo,bar,test,zzz}.rb
+        for file; do \
+          echo > $file "raise 'do not load $file'"; \
+        done
+        # drop {a..z}.rb if case-insensitive filesystem
+        grep -F A.rb a.rb > /dev/null && set "${@:27}"
+        echo clean="cd ${INPUT_BUILDDIR} && rm $*" >> $GITHUB_OUTPUT
+      env:
+        INPUT_BUILDDIR: ${{ inputs.builddir }}
+
+    - if: inputs.clean == 'true'
+      shell: bash
+      id: clean
+      run: |
+        echo distclean="cd ${INPUT_BUILDDIR} && ${INPUT_MAKE_COMMAND} distclean" >> $GITHUB_OUTPUT
+        echo remained-files="find ${INPUT_BUILDDIR} -ls" >> $GITHUB_OUTPUT
+        [ "${INPUT_BUILDDIR}" = "${INPUT_SRCDIR}" ] ||
+        echo final="rmdir ${INPUT_BUILDDIR}" >> $GITHUB_OUTPUT
+      env:
+        INPUT_BUILDDIR: ${{ inputs.builddir }}
+        INPUT_SRCDIR: ${{ inputs.srcdir }}
+        INPUT_MAKE_COMMAND: ${{ inputs.make-command }}
+
+    - name: clean
+      uses: gacts/run-and-post-run@598d7a875d5620e0457490555b5e18e46082aa47 # v1.4.4
+      with:
+        working-directory:
+        post: |
+          ${{ steps.dummy-files.outputs.clean }}
+          ${{ steps.clean.outputs.distclean }}
+          ${{ steps.clean.outputs.remained-files }}
+          ${{ steps.clean.outputs.final }}
+      # rmdir randomly fails due to launchable files
+      continue-on-error: true
diff --git a/.github/actions/setup/macos/action.yml b/.github/actions/setup/macos/action.yml
new file mode 100644
index 0000000000..9cd37a9b12
--- /dev/null
+++ b/.github/actions/setup/macos/action.yml
@@ -0,0 +1,29 @@
+name: Setup macOS environment
+description: >-
+  Installs necessary packages via Homebrew.
+
+inputs: {} # nothing?
+
+outputs: {} # nothing?
+
+runs:
+  using: composite
+
+  steps:
+    - name: brew
+      shell: bash
+      run: |
+        brew install --quiet jemalloc gmp libffi openssl@3 zlib autoconf automake libtool
+
+    - name: Set ENV
+      shell: bash
+      run: | # zizmor: ignore[github-env]
+        dir_config() {
+          local args=() lib var="$1"; shift
+          for lib in "$@"; do
+            args+=("--with-${lib%@*}-dir=$(brew --prefix $lib)")
+          done
+          echo "$var=${args[*]}" >> $GITHUB_ENV
+        }
+        dir_config ruby_configure_args gmp
+        dir_config CONFIGURE_ARGS openssl@3
diff --git a/.github/actions/setup/ubuntu/action.yml b/.github/actions/setup/ubuntu/action.yml
new file mode 100644
index 0000000000..5209ccc03f
--- /dev/null
+++ b/.github/actions/setup/ubuntu/action.yml
@@ -0,0 +1,72 @@
+name: Setup ubuntu environment
+description: >-
+  At the beginning there was no way but to copy & paste `apt-get`
+  everywhere.  But now that we have composite actions, it seems better
+  merge them into one.
+
+inputs:
+  arch:
+    required: false
+    default: ''
+    description: >-
+      Architecture.  Because we run this on a GitHub-hosted runner
+      acceptable value for this input is very limited.
+
+outputs:
+  arch:
+    value: ${{ steps.uname.outputs.uname }}
+    description: >-
+      Actual architecture.  This could be different from the one
+      passed to the `inputs.arch`.  For instance giving `i386` to this
+      action yields `i686`.
+
+runs:
+  using: composite
+
+  steps:
+    - id: uname
+      name: uname
+      shell: bash
+      env:
+        arch: ${{ inputs.arch }}
+      run: |
+        setarch="${arch:+setarch $arch --}"
+        # normalize `uname`
+        if uname=$(${setarch} uname -m 2> /dev/null); then
+          # `setarch` works, `$arch` is a valid architecture name.
+          echo "setarch=${setarch}" >> "$GITHUB_OUTPUT"
+        else
+          # if `setarch` failed, take the given `arch` as-is.
+          uname="${arch}"
+          setarch=""
+        fi
+        echo "uname=$uname" >> "$GITHUB_OUTPUT"
+        echo "dpkg=${uname/686/386}" >> "$GITHUB_OUTPUT"
+
+    - name: set SETARCH
+      shell: bash
+      run: echo "SETARCH=${setarch}" >> "$GITHUB_ENV" # zizmor: ignore[github-env]
+      env:
+        setarch: ${{ steps.uname.outputs.setarch }} # validated
+
+    - name: dpkg setup
+      shell: bash
+      run: sudo dpkg --add-architecture "${dpkg}"
+      # `dpkg` is valid, also `uname`.
+      if: ${{ inputs.arch }}
+      env:
+        dpkg: ${{ steps.uname.outputs.dpkg }}
+
+    - name: apt-get
+      shell: bash
+      env:
+        arch: ${{ inputs.arch && format(':{0}', steps.uname.outputs.dpkg) || '' }}
+      run: |
+        set -x
+        sudo apt-get update -qq || :
+        sudo apt-get install --no-install-recommends -qq -y -o=Dpkg::Use-Pty=0 \
+        ${arch:+cross}build-essential${arch/:/-} \
+        libssl-dev${arch} libyaml-dev${arch} libreadline6-dev${arch} \
+        zlib1g-dev${arch} libncurses5-dev${arch} libffi-dev${arch} \
+        autoconf ruby
+        sudo apt-get install -qq -y pkg-config${arch} || :
diff --git a/.github/actions/slack/action.yml b/.github/actions/slack/action.yml
new file mode 100644
index 0000000000..6f89bef11a
--- /dev/null
+++ b/.github/actions/slack/action.yml
@@ -0,0 +1,51 @@
+name: Post a message to slack
+description: >-
+  We have our ruby/action-slack webhook.  However its arguments are
+  bit verbose to be listed in every workflow files.  Better merge them
+  into one.
+
+inputs:
+  SLACK_WEBHOOK_URL:
+    required: true
+    description: >-
+      The URL to post the payload.  This is an input because it tends
+      to be stored in a secrets vault and a composite action cannot
+      look into one.
+
+  label:
+    required: false
+    description: >-
+      Human-readable description of the run, something like "DEBUG=1".
+      This need not be unique among runs.
+
+  event_name:
+    required: false
+    default: 'push'
+    description: >-
+      Target event to trigger notification. Notify only push by default.
+
+  extra_channel_id:
+    required: false
+    description: >-
+      Slack channel ID to notify besides #alerts and #alerts-emoji.
+
+outputs: {} # Nothing?
+
+runs:
+  using: composite
+
+  steps:
+    - uses: ruby/action-slack@d260b61aa817726d5bedd22dd6cc305787fa4cdd # v4.0.0
+      with:
+        payload: |
+          {
+            "ci": "GitHub Actions",
+            "env": "${{ github.workflow }}${{ inputs.label && format(' / {0}', inputs.label) }}",
+            "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+            "commit": "${{ github.sha }}",
+            "branch": "${{ github.ref_name }}"
+            ${{ inputs.extra_channel_id && format(', "extra_channel_id": "{0}"', inputs.extra_channel_id) }}
+          }
+      env:
+        SLACK_WEBHOOK_URL: ${{ inputs.SLACK_WEBHOOK_URL }}
+      if: ${{ github.event_name == inputs.event_name && startsWith(github.repository, 'ruby/') }}
diff --git a/.github/auto_request_review.yml b/.github/auto_request_review.yml
new file mode 100644
index 0000000000..9e20cb7459
--- /dev/null
+++ b/.github/auto_request_review.yml
@@ -0,0 +1,21 @@
+files:
+  'yjit*': [team:jit]
+  'yjit/**/*': [team:jit]
+  'yjit/src/cruby_bindings.inc.rs': []
+  'bootstraptest/test_yjit*': [team:jit]
+  'test/ruby/test_yjit*': [team:jit]
+  'zjit*': [team:jit]
+  'zjit/**/*': [team:jit]
+  'zjit/src/cruby_bindings.inc.rs': []
+  'test/ruby/test_zjit*': [team:jit]
+  'defs/jit.mk': [team:jit]
+  'tool/zjit_bisect.rb': [team:jit]
+  'doc/jit/*': [team:jit]
+  # Skip files updated by dependabot. It's noisy in notifications, and they're auto-merged anyway.
+  'yjit/Cargo.lock': []
+  'zjit/Cargo.lock': []
+  '.github/workflows/yjit-*.yml': []
+  '.github/workflows/zjit-*.yml': []
+options:
+  ignore_draft: true
+  last_files_match_only: true
diff --git a/.github/codeql/codeql-config.yml b/.github/codeql/codeql-config.yml
new file mode 100644
index 0000000000..f5d33545c1
--- /dev/null
+++ b/.github/codeql/codeql-config.yml
@@ -0,0 +1,22 @@
+paths-ignore:
+  - benchmark
+  - sample
+  - spec/ruby/command_line/fixtures
+  - spec/ruby/core/enumerable/shared/inject.rb
+  - spec/ruby/core/exception/fixtures
+  - spec/ruby/core/proc/parameters_spec.rb
+  - spec/ruby/core/proc/ruby2_keywords_spec.rb
+  - spec/ruby/core/range/reverse_each_spec.rb
+  - spec/ruby/language/fixtures
+  - spec/ruby/language/lambda_spec.rb
+  - spec/ruby/language/method_spec.rb
+  - spec/ruby/language/string_spec.rb
+  - test/error_highlight/test_error_highlight.rb
+  - test/prism/result/named_capture_test.rb
+  - test/ruby/test_call.rb
+  - test/ruby/test_signal.rb
+  - test/ruby/test_super.rb
+  - test/ruby/test_syntax.rb
+  - test/ruby/test_unicode_escape.rb
+  - test/rubygems/specifications/foo-0.0.1-x86-mswin32.gemspec
+  - trace_point.rb
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000000..57da742e5c
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,29 @@
+version: 2
+updates:
+  - package-ecosystem: 'github-actions'
+    directories:
+      - '/'
+      - '/.github/actions/slack'
+      - '/.github/actions/setup/directories'
+    schedule:
+      interval: 'daily'
+    groups:
+      github-actions:
+        patterns:
+          - "*"
+  - package-ecosystem: 'cargo'
+    directories:
+      - '/yjit'
+      - '/zjit'
+    exclude-paths:
+      - 'gc/mmtk/**'
+    schedule:
+      interval: 'monthly'
+    groups:
+      jit:
+        patterns:
+          - "*"
+  - package-ecosystem: 'vcpkg'
+    directory: '/'
+    schedule:
+      interval: 'daily'
diff --git a/.github/labeler.yml b/.github/labeler.yml
new file mode 100644
index 0000000000..f39fcec386
--- /dev/null
+++ b/.github/labeler.yml
@@ -0,0 +1,7 @@
+Documentation:
+- changed-files:
+  - all-globs-to-all-files: doc/**
+
+Backport:
+- base-branch: 'ruby_3_\d'
+- base-branch: 'ruby_4_\d'
diff --git a/.github/workflows/annocheck.yml b/.github/workflows/annocheck.yml
new file mode 100644
index 0000000000..5991165d43
--- /dev/null
+++ b/.github/workflows/annocheck.yml
@@ -0,0 +1,111 @@
+name: Annocheck
+
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  compile:
+    name: test-annocheck
+
+    runs-on: ubuntu-latest
+
+    container:
+      image: ghcr.io/ruby/ruby-ci-image:gcc-11
+      options: --user root
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    env:
+      CONFIGURE_TTY: never
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      RUBY_DEBUG: ci rgengc
+      RUBY_TESTOPTS: >-
+        -q
+        --color=always
+        --tty=no
+      # FIXME: Drop skipping options
+      # https://bugs.ruby-lang.org/issues/18061
+      # https://sourceware.org/annobin/annobin.html/Test-pie.html
+      TEST_ANNOCHECK_OPTS: '--skip-pie --skip-gaps'
+
+    steps:
+      - run: id
+        working-directory:
+
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.1'
+          bundler: none
+
+      # Minimal flags to pass the check.
+      # -g0 disables backtraces when SEGV.  Do not set that.
+      - name: Run configure
+        run: >
+          ../src/configure -C
+          --enable-debug-env
+          --disable-install-doc
+          --with-ext=-test-/cxxanyargs,+
+          --without-valgrind
+          --without-jemalloc
+          --without-gmp
+          --with-gcc="gcc-11 -fcf-protection -Wa,--generate-missing-build-notes=yes"
+          --enable-shared
+          debugflags=-ggdb3
+          optflags=-O2
+          LDFLAGS=-Wl,-z,now
+
+      - run: make showflags
+
+      - run: make
+
+      - run: make test-annocheck
+
+      - uses: ./.github/actions/slack
+        with:
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/auto_request_review.yml b/.github/workflows/auto_request_review.yml
new file mode 100644
index 0000000000..80f2517eb5
--- /dev/null
+++ b/.github/workflows/auto_request_review.yml
@@ -0,0 +1,20 @@
+name: Auto Request Review
+on:
+  pull_request_target:
+    types: [opened, ready_for_review, reopened]
+    branches: [master]
+
+permissions:
+  contents: read
+
+jobs:
+  auto-request-review:
+    name: Auto Request Review
+    runs-on: ubuntu-latest
+    if: ${{ github.repository == 'ruby/ruby' && github.base_ref == 'master' }}
+    steps:
+      - name: Request review based on files changes and/or groups the author belongs to
+        uses: necojackarc/auto-request-review@035f049cb68460341ab744f19aa9f31aae685e36 # master
+        with:
+          # scope: public_repo
+          token: ${{ secrets.MATZBOT_AUTO_REQUEST_REVIEW_TOKEN }}
diff --git a/.github/workflows/auto_review_pr.yml b/.github/workflows/auto_review_pr.yml
new file mode 100644
index 0000000000..bb84a51573
--- /dev/null
+++ b/.github/workflows/auto_review_pr.yml
@@ -0,0 +1,41 @@
+name: Auto Review PR
+on:
+  pull_request_target:
+    types: [opened, ready_for_review, reopened]
+    branches: [master]
+  workflow_dispatch:
+    inputs:
+      pr_number:
+        description: 'PR number to review'
+        required: true
+        type: number
+
+permissions:
+  contents: read
+
+jobs:
+  auto-review-pr:
+    name: Auto Review PR
+    runs-on: ubuntu-latest
+    if: ${{ github.repository == 'ruby/ruby' && (github.base_ref == 'master' || github.event_name == 'workflow_dispatch') }}
+
+    permissions:
+      pull-requests: write
+      contents: read
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.4'
+          bundler: none
+
+      - name: Auto Review PR
+        run: ruby tool/auto_review_pr.rb "$GITHUB_PR_NUMBER"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_PR_NUMBER: ${{ github.event.pull_request.number || github.event.inputs.pr_number }}
diff --git a/.github/workflows/baseruby.yml b/.github/workflows/baseruby.yml
new file mode 100644
index 0000000000..9e7720f659
--- /dev/null
+++ b/.github/workflows/baseruby.yml
@@ -0,0 +1,76 @@
+name: BASERUBY Check
+
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  baseruby:
+    name: BASERUBY
+
+    runs-on: ubuntu-22.04
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    strategy:
+      matrix:
+        ruby:
+          - ruby-3.1
+          - ruby-3.2
+          - ruby-3.3
+
+    steps:
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler: none
+
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/ubuntu
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          makeup: true
+
+      - run: ./configure --disable-install-doc
+
+      - run: make all
+
+      - run: make test
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.ruby }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
diff --git a/.github/workflows/bundled_gems.yml b/.github/workflows/bundled_gems.yml
new file mode 100644
index 0000000000..d329ee9b4b
--- /dev/null
+++ b/.github/workflows/bundled_gems.yml
@@ -0,0 +1,186 @@
+name: bundled_gems
+
+env:
+  UPDATE_ENABLED: true
+
+on:
+  push:
+    branches: ['master']
+    paths:
+      - '.github/workflows/bundled_gems.yml'
+      - 'gems/bundled_gems'
+  pull_request:
+    branches: ['master']
+    paths:
+      - '.github/workflows/bundled_gems.yml'
+      - 'gems/bundled_gems'
+  merge_group:
+  schedule:
+    - cron: '45 6 * * *'
+  workflow_dispatch:
+
+permissions: # added using https://github.com/step-security/secure-workflows
+  contents: read
+
+jobs:
+  update:
+    permissions:
+      contents: write # for Git to git push
+
+    if: ${{ github.event_name != 'schedule' || github.repository == 'ruby/ruby' }}
+
+    name: update ${{ github.workflow }}
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          token: ${{ (github.repository == 'ruby/ruby' && !startsWith(github.event_name, 'pull')) && secrets.MATZBOT_AUTO_UPDATE_TOKEN || secrets.GITHUB_TOKEN }}
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: 4.0
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          # Skip overwriting MATZBOT_AUTO_UPDATE_TOKEN
+          checkout: '' # false (ref: https://github.com/actions/runner/issues/2238)
+
+      - name: Set ENV
+        run: |
+          echo "TODAY=$(date +%F)" >> $GITHUB_ENV
+
+      - name: Download previous gems list
+        run: |
+          mkdir -p .downloaded-cache
+          for data in bundled_gems.json default_gems.json; do
+            ln -s .downloaded-cache/$data .
+            curl --retry 5 --retry-connrefused --retry-delay 2 --retry-max-time 60 -O -R -z ./$data https://stdgems.org/$data
+          done
+
+      - name: Update bundled gems list
+        id: bundled_gems
+        run: |
+          ruby -i~ tool/update-bundled_gems.rb gems/bundled_gems >> $GITHUB_OUTPUT
+        if: ${{ env.UPDATE_ENABLED == 'true' }}
+
+      - name: Maintain updated gems list in NEWS
+        run: |
+          ruby tool/update-NEWS-gemlist.rb bundled
+          ruby tool/update-NEWS-github-release.rb --update
+        if: ${{ env.UPDATE_ENABLED == 'true' }}
+
+      - name: Check diffs
+        id: diff
+        run: |
+          news= gems=
+          git diff --color --no-ext-diff --ignore-submodules --exit-code -- NEWS.md ||
+          news=true
+          git diff --color --no-ext-diff --ignore-submodules --exit-code -- gems/bundled_gems ||
+          gems=true
+          git add -- NEWS.md gems/bundled_gems
+          echo news=$news >> $GITHUB_OUTPUT
+          echo gems=$gems >> $GITHUB_OUTPUT
+          echo update=${news:-$gems} >> $GITHUB_OUTPUT
+
+      - name: Commit
+        id: commit
+        run: |
+          git pull --ff-only origin ${GITHUB_REF#refs/heads/}
+          message="Update bundled gems list"
+          if [ -z "${gems}" ]; then
+            git commit --message="[DOC] ${message} at ${GITHUB_SHA:0:30}"
+          else
+            git commit --message="${message} as of ${TODAY}"
+          fi
+        env:
+          TODAY: ${{ steps.bundled_gems.outputs.latest_date || env.TODAY }}
+          EMAIL: svn-admin@ruby-lang.org
+          GIT_AUTHOR_NAME: git
+          GIT_COMMITTER_NAME: git
+          gems: ${{ steps.diff.outputs.gems }}
+        if: ${{ steps.diff.outputs.update }}
+
+      - name: Development revision of bundled gems
+        run: |
+          #!ruby
+          file = "gems/bundled_gems"
+
+          SECONDS_IN_DAY = 86400
+          today = Time.new("#{ENV['TODAY']}Z")
+          if !(december = today.month == 12)
+            days = 30
+          elsif (days = 26 - today.day).positive?
+            days += 4
+          else
+            puts "::info:: just after released"
+            exit
+          end
+
+          since = "#{today.year-1}-12-26"
+          ref = ENV['GITHUB_REF']
+          puts "::group::\e[94mfetching \e[1m#{file}\e[22m since \e[1m#{since}\e[22m from \e[1m#{ref}\e[m"
+          system(*%W[git fetch --shallow-since=#{since} --no-tags origin #{ref}], exception: true)
+          puts "::endgroup::"
+
+          puts "\e[94mchecking development version bundled gems older than \e[1m#{days}\e[22m days\e[m"
+          limit = today.to_i - days * SECONDS_IN_DAY
+          old = 0
+          IO.popen(%W"git blame --line-porcelain -- #{file}") do |blame|
+            while head = blame.gets("\n\t") and s = blame.gets
+              next unless (gem = s.split(/\s+|#.*/)).size > 3
+              time = head[/^committer-time \K\d+/].to_i
+              next if (d = limit - time) <= 0
+              d /= SECONDS_IN_DAY
+              line = head[/\A\h+ \d+ \K\d+/].to_i
+              level = if d < days; 'warning'; else old += 1; 'error'; end
+              d += days
+              puts "::#{level} file=#{file},line=#{line},title=Older than #{d} days::#{gem[0]} #{gem[3]}"
+            end
+          end
+          abort "::error title=Too long-standing gems::The release comes soon." if december and old.nonzero?
+        shell: ruby {0}
+        env:
+          file: ${{ steps.logs.outputs.file }}
+          days: ${{ steps.logs.outputs.days }}
+
+      - name: Install libraries
+        uses: ./.github/actions/setup/ubuntu
+        if: ${{ steps.diff.outputs.gems }}
+
+      - name: Build
+        run: |
+          ./autogen.sh
+          ./configure -C --disable-install-doc
+          make
+        if: ${{ steps.diff.outputs.gems }}
+
+      - name: Prepare bundled gems
+        run: |
+          make -s prepare-gems
+        if: ${{ steps.diff.outputs.gems }}
+
+      - name: Test bundled gems
+        run: |
+          make -s test-bundled-gems
+        timeout-minutes: 30
+        env:
+          RUBY_TESTOPTS: '-q --tty=no'
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ''
+        if: ${{ steps.diff.outputs.gems }}
+
+      - name: Push
+        run: |
+          git push origin ${GITHUB_REF#refs/heads/}
+        if: >-
+          ${{
+          github.repository == 'ruby/ruby' &&
+          !startsWith(github.event_name, 'pull') &&
+          steps.commit.outcome == 'success'
+          }}
+
+      - uses: ./.github/actions/slack
+        with:
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
diff --git a/.github/workflows/check_dependencies.yml b/.github/workflows/check_dependencies.yml
new file mode 100644
index 0000000000..a120dde7e5
--- /dev/null
+++ b/.github/workflows/check_dependencies.yml
@@ -0,0 +1,61 @@
+name: Check Dependencies
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  update-deps:
+    name: Dependency checks
+
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+      fail-fast: true
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/ubuntu
+        if: ${{ contains(matrix.os, 'ubuntu') }}
+
+      - uses: ./.github/actions/setup/macos
+        if: ${{ contains(matrix.os, 'macos') }}
+
+      - uses: ./.github/actions/setup/directories
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.1'
+          bundler: none
+
+      - name: Run configure
+        run: ./configure -C --disable-install-doc --disable-rubygems --with-gcc 'optflags=-O0' 'debugflags=-save-temps=obj -g'
+
+      - run: make fix-depends
+
+      - run: git diff --color --no-ext-diff --ignore-submodules --exit-code
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.os }} / Dependencies need to update
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
diff --git a/.github/workflows/check_misc.yml b/.github/workflows/check_misc.yml
new file mode 100644
index 0000000000..cb1642b9e2
--- /dev/null
+++ b/.github/workflows/check_misc.yml
@@ -0,0 +1,151 @@
+name: Misc
+on: [push, pull_request, merge_group]
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  checks:
+    name: Miscellaneous checks
+
+    permissions:
+      contents: write # for Git to git push
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          token: ${{ (github.repository == 'ruby/ruby' && !startsWith(github.event_name, 'pull')) && secrets.MATZBOT_AUTO_UPDATE_TOKEN || secrets.GITHUB_TOKEN }}
+          persist-credentials: false
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: head
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          makeup: true
+          # Skip overwriting MATZBOT_AUTO_UPDATE_TOKEN
+          checkout: '' # false (ref: https://github.com/actions/runner/issues/2238)
+
+      - name: Re-generate Makefiles
+        run: |
+          # config.status needs to run as a shell script
+          { echo ':&&exit'; cat tool/prereq.status; } > config.status
+          : # same as actions/setup/directories/action.yml
+          for mk in Makefile GNUmakefile; do
+            sed -f tool/prereq.status template/$mk.in > $mk
+          done
+
+      - name: Check for code styles
+        run: |
+          set -x
+          ruby tool/auto-style.rb "$GITHUB_OLD_SHA" "$GITHUB_NEW_SHA"
+        env:
+          GITHUB_OLD_SHA: ${{ github.event.pull_request.base.sha }}
+          GITHUB_NEW_SHA: ${{ github.event.pull_request.merge_commit_sha }}
+        # Skip 'push' events because post_push.yml fixes them on push
+        if: ${{ github.repository == 'ruby/ruby' && startsWith(github.event_name, 'pull') }}
+
+      - name: Check if date in man pages is up-to-date
+        run: |
+          git fetch origin --depth=1 "${GITHUB_OLD_SHA}"
+          git diff --exit-code --name-only "${GITHUB_OLD_SHA}" HEAD -- man ||
+          make V=1 GIT=git BASERUBY=ruby update-man-date
+          git diff --color --no-ext-diff --ignore-submodules --exit-code -- man
+        env:
+          GITHUB_OLD_SHA: ${{ github.event.pull_request.base.sha }}
+        if: ${{ startsWith(github.event_name, 'pull') }}
+
+      - name: Check for bash specific substitution in configure.ac
+        run: |
+          git grep -n '\${[A-Za-z_0-9]*/' -- configure.ac && exit 1 || :
+
+      - name: Check for header macros
+        run: |
+          fail=
+          for header in ruby/*.h; do
+            git grep -l -F -e $header -e HAVE_`echo $header | tr a-z./ A-Z__` -- . > /dev/null && continue
+            fail=1
+            echo $header
+          done
+          exit $fail
+        working-directory: include
+
+      - id: now
+        run: |
+          date +"mon=%-m"%n"day=%-d" >> $GITHUB_OUTPUT
+        env:
+          TZ: Asia/Tokyo
+
+      - id: deprecation
+        run: |
+          eval $(sed -n 's/^#define RUBY_API_VERSION_\(MAJOR\|MINOR\) /\1=/p' include/ruby/version.h)
+          if git --no-pager grep --color -o 'rb_warn_deprecated_to_remove_at('$MAJOR'\.'$MINOR',.*' -- '*.c' >&2; then
+              false
+          else
+              true
+          fi
+        continue-on-error: ${{ steps.now.outputs.mon < 12 }}
+
+      - name: Check if to generate documents
+        id: rdoc
+        run: |
+          set -- $(sed 's/#.*//;/^rdoc /!d' gems/bundled_gems)
+          { echo version=$2; echo ref=$4; } >> $GITHUB_OUTPUT
+
+      - name: Checkout rdoc
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          repository: ruby/rdoc
+          ref: ${{ steps.rdoc.outputs.ref }}
+          path: .bundle/gems/rdoc-${{ steps.rdoc.outputs.version }}
+          persist-credentials: false
+        if: ${{ steps.rdoc.outputs.ref != '' }}
+
+      - name: Generate rdoc scripts
+        run: |
+          set -x
+          gempath=$(ruby -e 'print Gem.user_dir, "/bin"')
+          PATH=$gempath:$PATH
+          gem install --user bundler
+          bundle config --local path vendor/bundle
+          bundle install --jobs 4
+          bundle exec rake generate
+        working-directory: .bundle/gems/rdoc-${{ steps.rdoc.outputs.version }}
+        if: ${{ steps.rdoc.outputs.ref != '' }}
+
+      - name: Core docs coverage
+        run: |
+          make XRUBY=ruby RDOC_DEPENDS= RBCONFIG=update-rbconfig rdoc-coverage
+
+      - name: Generate docs
+        id: docs
+        run: |
+          make XRUBY=ruby RDOC_DEPENDS= RBCONFIG=update-rbconfig HTMLOUT=html html
+          echo htmlout=ruby-html-${GITHUB_SHA:0:10} >> $GITHUB_OUTPUT
+        # Generate only when document commit/PR
+        if: >-
+          ${{false
+          || contains(github.event.head_commit.message, '[ruby/rdoc]')
+          || contains(github.event.head_commit.message, '[DOC]')
+          || contains(github.event.pull_request.title, '[DOC]')
+          || contains(github.event.pull_request.labels.*.name, 'Documentation')
+          }}
+
+      - name: Upload docs
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          path: html
+          name: ${{ steps.docs.outputs.htmlout }}
+        if: ${{ steps.docs.outcome == 'success' }}
+
+      - uses: ./.github/actions/slack
+        with:
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
diff --git a/.github/workflows/check_sast.yml b/.github/workflows/check_sast.yml
new file mode 100644
index 0000000000..c8db1103ed
--- /dev/null
+++ b/.github/workflows/check_sast.yml
@@ -0,0 +1,133 @@
+name: 'Check SAST tool'
+
+on:
+  push:
+    branches: ['master']
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  schedule:
+    - cron: '0 12 * * *'
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions: # added using https://github.com/step-security/secure-workflows
+  contents: read
+
+jobs:
+  zizmor:
+    name: zizmor
+
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      security-events: write
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - name: Run zizmor
+        uses: zizmorcore/zizmor-action@5f14fd08f7cf1cb1609c1e344975f152c7ee938d # v0.5.6
+        continue-on-error: true
+
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read # for github/codeql-action/init to get workflow details
+      contents: read # for actions/checkout to fetch code
+      security-events: write # for github/codeql-action/upload-sarif to send a status report
+    # CodeQL fails to run pull requests from dependabot due to missing write access to upload results.
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - language: cpp
+          - language: ruby
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v4.36.2
+        with:
+          languages: ${{ matrix.language }}
+          build-mode: none
+          config-file: .github/codeql/codeql-config.yml
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v4.36.2
+        with:
+          category: '/language:${{ matrix.language }}'
+          upload: False
+          output: sarif-results
+
+      - name: filter-sarif
+        uses: advanced-security/filter-sarif@2da736ff05ef065cb2894ac6892e47b5eac2c3c0 # v1.1
+        with:
+          patterns: |
+            +**/*.rb
+            -lib/uri/mailto.rb:rb/overly-large-range
+            -lib/uri/rfc3986_parser.rb:rb/overly-large-range
+            -lib/bundler/vendor/uri/lib/uri/mailto.rb:rb/overly-large-range
+            -lib/bundler/vendor/uri/lib/uri/rfc3986_parser.rb:rb/overly-large-range
+            -spec/ruby/core/regexp/timeout_spec.rb:rb/redos
+            -test/ruby/test_io.rb:rb/non-constant-kernel-open
+            -test/open-uri/test_open-uri.rb:rb/non-constant-kernel-open
+            -test/open-uri/test_ssl.rb:rb/non-constant-kernel-open
+            -spec/ruby/core/io/binread_spec.rb:rb/non-constant-kernel-open
+            -spec/ruby/core/io/readlines_spec.rb:rb/non-constant-kernel-open
+            -spec/ruby/core/io/foreach_spec.rb:rb/non-constant-kernel-open
+            -spec/ruby/core/io/write_spec.rb:rb/non-constant-kernel-open
+            -spec/ruby/core/io/read_spec.rb:rb/non-constant-kernel-open
+            -spec/ruby/core/kernel/open_spec.rb:rb/non-constant-kernel-open
+          input: sarif-results/${{ matrix.language }}.sarif
+          output: sarif-results/${{ matrix.language }}.sarif
+        if: ${{ matrix.language == 'ruby' }}
+        continue-on-error: true
+
+      - name: filter-sarif
+        uses: advanced-security/filter-sarif@2da736ff05ef065cb2894ac6892e47b5eac2c3c0 # v1.1
+        with:
+          patterns: |
+            +**/*.c
+            +**/*.h
+          input: sarif-results/${{ matrix.language }}.sarif
+          output: sarif-results/${{ matrix.language }}.sarif
+        if: ${{ matrix.language == 'cpp' }}
+        continue-on-error: true
+
+      - name: Upload SARIF
+        uses: github/codeql-action/upload-sarif@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v4.36.2
+        with:
+          sarif_file: sarif-results/${{ matrix.language }}.sarif
+        continue-on-error: true
diff --git a/.github/workflows/compilers.yml b/.github/workflows/compilers.yml
new file mode 100644
index 0000000000..f747b7fd03
--- /dev/null
+++ b/.github/workflows/compilers.yml
@@ -0,0 +1,333 @@
+# Some tests depending on this name 'Compilations' via $GITHUB_WORKFLOW. Make sure to update such tests when renaming this workflow.
+name: Compilations
+
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+# Each job is split so that they roughly take 30min to run through.
+jobs:
+  compile-if:
+    name: 'omnibus compilations, trigger'
+    runs-on: ubuntu-latest
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+    steps:
+      - run: true
+        working-directory:
+
+  compile1:
+    name: 'omnibus compilations, #1'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      # Set fetch-depth: 10 so that Launchable can receive commits information.
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      - name: 'clang 22 LTO'
+        uses: './.github/actions/compilers'
+        with:
+          tag: clang-22
+          with_gcc: 'clang-22 -flto=auto'
+          optflags: '-O2'
+          enable_shared: false
+        timeout-minutes: 30
+      - { uses: './.github/actions/compilers', name: '-O0', with: { optflags: '-O0 -march=x86-64 -mtune=generic' }, timeout-minutes: 5 }
+      # - { uses: './.github/actions/compilers', name: '-O3', with: { optflags: '-O3 -march=x86-64 -mtune=generic', check: true } }
+
+  compile2:
+    name: 'omnibus compilations, #2'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      - name: 'GCC 15 LTO'
+        uses: './.github/actions/compilers'
+        with:
+          tag: gcc-15
+          with_gcc: 'gcc-15 -flto=auto -ffat-lto-objects -Werror=lto-type-mismatch'
+          optflags: '-O2'
+          enable_shared: false
+        timeout-minutes: 10
+      - { uses: './.github/actions/compilers', name: 'ext/Setup', with: { static_exts: 'etc json/* */escape' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GCC 15', with: { tag: 'gcc-15' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GCC 14', with: { tag: 'gcc-14' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GCC 13', with: { tag: 'gcc-13' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GCC 12', with: { tag: 'gcc-12' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GCC 11', with: { tag: 'gcc-11' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GCC 10', with: { tag: 'gcc-10' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GCC 9',  with: { tag: 'gcc-9'  }, timeout-minutes: 5 }
+
+  compile3:
+    name: 'omnibus compilations, #3'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      - { uses: './.github/actions/compilers', name: 'clang 20', with: { tag: 'clang-20' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 19', with: { tag: 'clang-19' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 18', with: { tag: 'clang-18' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 17', with: { tag: 'clang-17' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 16', with: { tag: 'clang-16' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 15', with: { tag: 'clang-15' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 14', with: { tag: 'clang-14' }, timeout-minutes: 5 }
+
+  compile4:
+    name: 'omnibus compilations, #4'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      - { uses: './.github/actions/compilers', name: 'clang 13', with: { tag: 'clang-13' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 12', with: { tag: 'clang-12' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 11', with: { tag: 'clang-11' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 10', with: { tag: 'clang-10' }, timeout-minutes: 5 }
+        # llvm-objcopy<=9 doesn't have --wildcard. It compiles, but leaves Rust symbols in libyjit.o and fail `make test-leaked-globals`.
+      - { uses: './.github/actions/compilers', name: 'clang 9',  with: { tag: 'clang-9',   append_configure: '--disable-yjit --disable-zjit' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 8',  with: { tag: 'clang-8',   append_configure: '--disable-yjit --disable-zjit' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 7',  with: { tag: 'clang-7',   append_configure: '--disable-yjit --disable-zjit' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 6',  with: { tag: 'clang-6.0', append_configure: '--disable-yjit --disable-zjit' }, timeout-minutes: 5 }
+
+  compile5:
+    name: 'omnibus compilations, #5'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      # -Wno-strict-prototypes is necessary with current clang-15 since
+      # older autoconf generate functions without prototype and -pedantic
+      # now implies strict-prototypes. Disabling the error but leaving the
+      # warning generates a lot of noise from use of ANYARGS in
+      # rb_define_method() and friends.
+      # See: https://github.com/llvm/llvm-project/commit/11da1b53d8cd3507959022cd790d5a7ad4573d94
+      - { uses: './.github/actions/compilers', name: 'C99',      with: { CFLAGS: '-std=c99 -Werror=pedantic -pedantic-errors -Wno-strict-prototypes' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'C11',   with: { CFLAGS:   '-std=c11   -Werror=pedantic -pedantic-errors -Wno-strict-prototypes' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'C17',   with: { CFLAGS:   '-std=c17   -Werror=pedantic -pedantic-errors -Wno-strict-prototypes' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'C23',   with: { CFLAGS:   '-std=c2x   -Werror=pedantic -pedantic-errors -Wno-strict-prototypes' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'C++98', with: { CXXFLAGS: '-std=c++98 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'C++11', with: { CXXFLAGS: '-std=c++11 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'C++14', with: { CXXFLAGS: '-std=c++14 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'C++17', with: { CXXFLAGS: '-std=c++17 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' }, timeout-minutes: 5 }
+
+  compile6:
+    name: 'omnibus compilations, #6'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      - { uses: './.github/actions/compilers', name: 'C++20', with: { CXXFLAGS: '-std=c++20 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'C++23', with: { CXXFLAGS: '-std=c++23 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'C++26', with: { CXXFLAGS: '-std=c++26 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'gmp',                 with: { append_configure: '--with-gmp', test_all: 'ruby/test_bignum.rb', test_spec: "/github/workspace/src/spec/ruby/core/integer" }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'jemalloc',            with: { append_configure: '--with-jemalloc' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'valgrind',            with: { append_configure: '--with-valgrind' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'coroutine=ucontext',  with: { append_configure: '--with-coroutine=ucontext' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'coroutine=pthread',   with: { append_configure: '--with-coroutine=pthread' }, timeout-minutes: 5 }
+
+  compile7:
+    name: 'omnibus compilations, #7'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      - { uses: './.github/actions/compilers', name: 'disable-jit',         with: { append_configure: '--disable-yjit --disable-zjit' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'disable-yjit',        with: { append_configure: '--disable-yjit' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'disable-zjit',        with: { append_configure: '--disable-zjit' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'disable-dln',         with: { append_configure: '--disable-dln' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'enable-mkmf-verbose', with: { append_configure: '--enable-mkmf-verbose' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'disable-rubygems',    with: { append_configure: '--disable-rubygems' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'RUBY_DEVEL',          with: { append_configure: '--enable-devel' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'OPT_THREADED_CODE=0',            with: { cppflags: '-DOPT_THREADED_CODE=0' }, timeout-minutes: 5 }
+
+  compile8:
+    name: 'omnibus compilations, #8'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      - { uses: './.github/actions/compilers', name: 'NDEBUG',                         with: { cppflags: '-DNDEBUG' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'RUBY_DEBUG',                     with: { cppflags: '-DRUBY_DEBUG' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'ARRAY_DEBUG',                    with: { cppflags: '-DARRAY_DEBUG' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'CCAN_LIST_DEBUG',                with: { cppflags: '-DCCAN_LIST_DEBUG' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'CPDEBUG=-1',                     with: { cppflags: '-DCPDEBUG=-1' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'ENC_DEBUG',                      with: { cppflags: '-DENC_DEBUG' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GC_DEBUG',                       with: { cppflags: '-DGC_DEBUG' }, timeout-minutes: 5 }
+
+  compile9:
+    name: 'omnibus compilations, #9'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      - { uses: './.github/actions/compilers', name: 'HASH_DEBUG',                     with: { cppflags: '-DHASH_DEBUG' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'ID_TABLE_DEBUG',                 with: { cppflags: '-DID_TABLE_DEBUG' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'RGENGC_DEBUG=-1',                with: { cppflags: '-DRGENGC_DEBUG=-1' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'SYMBOL_DEBUG',                   with: { cppflags: '-DSYMBOL_DEBUG' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'RGENGC_CHECK_MODE',              with: { cppflags: '-DRGENGC_CHECK_MODE' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'VM_CHECK_MODE',                  with: { cppflags: '-DVM_CHECK_MODE' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'USE_EMBED_CI=0',                 with: { cppflags: '-DUSE_EMBED_CI=0' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'USE_FLONUM=0',                   with: { cppflags: '-DUSE_FLONUM=0', append_configure: '--disable-yjit --disable-zjit' }, timeout-minutes: 5 }
+
+  compileX:
+    name: 'omnibus compilations, #10'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      - { uses: './.github/actions/compilers', name: 'USE_LAZY_LOAD',                  with: { cppflags: '-DUSE_LAZY_LOAD' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'USE_RUBY_DEBUG_LOG=1',           with: { cppflags: '-DUSE_RUBY_DEBUG_LOG=1' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'USE_DEBUG_COUNTER',              with: { cppflags: '-DUSE_DEBUG_COUNTER=1' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'SHARABLE_MIDDLE_SUBSTRING',      with: { cppflags: '-DSHARABLE_MIDDLE_SUBSTRING=1' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'DEBUG_FIND_TIME_NUMGUESS',       with: { cppflags: '-DDEBUG_FIND_TIME_NUMGUESS' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'DEBUG_INTEGER_PACK',             with: { cppflags: '-DDEBUG_INTEGER_PACK' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'OPT_THREADED_CODE=1',            with: { cppflags: '-DOPT_THREADED_CODE=1' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'OPT_THREADED_CODE=2',            with: { cppflags: '-DOPT_THREADED_CODE=2' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 21', with: { tag: 'clang-21' }, timeout-minutes: 5 }
+
+  compileB:
+    name: 'omnibus compilations, #11'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      - { uses: './.github/actions/compilers', name: 'GC_DEBUG_STRESS_TO_CLASS',       with: { cppflags: '-DGC_DEBUG_STRESS_TO_CLASS' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GC_ENABLE_LAZY_SWEEP=0',         with: { cppflags: '-DGC_ENABLE_LAZY_SWEEP=0' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GC_PROFILE_DETAIL_MEMORY',       with: { cppflags: '-DGC_PROFILE_DETAIL_MEMORY' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GC_PROFILE_MORE_DETAIL',         with: { cppflags: '-DGC_PROFILE_MORE_DETAIL' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'MALLOC_ALLOCATED_SIZE_CHECK',    with: { cppflags: '-DMALLOC_ALLOCATED_SIZE_CHECK' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'RGENGC_ESTIMATE_OLDMALLOC',      with: { cppflags: '-DRGENGC_ESTIMATE_OLDMALLOC' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'RGENGC_PROFILE',                 with: { cppflags: '-DRGENGC_PROFILE' }, timeout-minutes: 5 }
+
+  compileC:
+    name: 'omnibus compilations, #12'
+    runs-on: ubuntu-latest
+    needs: compile-if
+    if: ${{ needs.compile-if.result == 'success' }}
+    timeout-minutes: 60
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
+      - { uses: './.github/actions/compilers', name: 'VM_DEBUG_BP_CHECK',              with: { cppflags: '-DVM_DEBUG_BP_CHECK' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'VM_DEBUG_VERIFY_METHOD_CACHE',   with: { cppflags: '-DVM_DEBUG_VERIFY_METHOD_CACHE' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'YJIT_FORCE_ENABLE',              with: { cppflags: '-DYJIT_FORCE_ENABLE' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'UNIVERSAL_PARSER',               with: { cppflags: '-DUNIVERSAL_PARSER' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 23', with: { tag: 'clang-23' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'clang 22', with: { tag: 'clang-22' }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GCC 8',  with: { tag: 'gcc-8'  }, timeout-minutes: 5 }
+      - { uses: './.github/actions/compilers', name: 'GCC 7',  with: { tag: 'gcc-7'  }, timeout-minutes: 5 }
+
+  compilemax:
+    name: 'omnibus compilations, result'
+    runs-on: ubuntu-latest
+    if: ${{ always() }}
+    needs:
+      - 'compile1'
+      - 'compile2'
+      - 'compile3'
+      - 'compile4'
+      - 'compile5'
+      - 'compile6'
+      - 'compile7'
+      - 'compile8'
+      - 'compile9'
+      - 'compileX'
+      - 'compileB'
+      - 'compileC'
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
+      - uses: ./.github/actions/slack
+        with:
+          label: 'omnibus'
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+      - run: false
+        working-directory:
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/crosscompile.yml b/.github/workflows/crosscompile.yml
new file mode 100644
index 0000000000..3ed6429a1e
--- /dev/null
+++ b/.github/workflows/crosscompile.yml
@@ -0,0 +1,123 @@
+name: Cross compile
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    # Do not use paths-ignore for required status checks
+    # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  make:
+    name: make (${{ matrix.host }} host on ${{ matrix.build }})
+    strategy:
+      matrix:
+        include:
+          - host: aarch64-linux-gnu
+            arch: arm64
+            build: x86_64-linux-gnu
+            runs-on: ubuntu-24.04
+            file_arch: ARM aarch64
+          - host: x86_64-linux-gnu
+            arch: amd64
+            build: aarch64-linux-gnu
+            runs-on: ubuntu-24.04-arm
+            file_arch: x86-64
+      fail-fast: false
+
+    env:
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+
+    runs-on: ${{ matrix.runs-on }}
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+
+      - name: Setup cross-compilation toolchain sources
+        run: |
+          native_arch=$(dpkg --print-architecture)
+          # Restrict existing sources to native arch
+          sudo sed -i '/^Architectures:/d' /etc/apt/sources.list.d/ubuntu.sources
+          sudo sed -i "/^Types:/a Architectures: ${native_arch}" /etc/apt/sources.list.d/ubuntu.sources
+          # Add cross-arch sources
+          if [ "${{ matrix.arch }}" = "arm64" ]; then
+            cross_uri="http://ports.ubuntu.com/"
+          else
+            cross_uri="http://archive.ubuntu.com/ubuntu/"
+          fi
+          printf '%s\n' \
+            "Types: deb" \
+            "URIs: ${cross_uri}" \
+            "Suites: noble noble-updates noble-security" \
+            "Components: main universe" \
+            "Architectures: ${{ matrix.arch }}" \
+            | sudo tee /etc/apt/sources.list.d/cross-${{ matrix.arch }}.sources
+
+      - uses: ./.github/actions/setup/ubuntu
+        with:
+          arch: ${{ matrix.arch }}
+
+      - uses: ./.github/actions/setup/baseruby
+        id: baseruby
+        with:
+          srcdir: src
+
+      - name: Run configure
+        run: >-
+          ../src/configure -C --disable-install-doc
+          --prefix=/usr
+          --build=${{ matrix.build }}
+          --host=${{ matrix.host }}
+          --with-baseruby="$baseruby"
+        env:
+          baseruby: ${{ steps.baseruby.outputs.ruby }}
+
+      - run: make
+
+      - run: make install DESTDIR=$PWD/install
+
+      - name: Verify cross-compiled binary
+        run: |
+          file install/usr/bin/ruby
+          file install/usr/bin/ruby | grep -q '${{ matrix.file_arch }}'
+
+      - uses: ./.github/actions/slack
+        with:
+          label: cross ${{ matrix.host }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/cygwin.yml b/.github/workflows/cygwin.yml
new file mode 100644
index 0000000000..f1a6f79587
--- /dev/null
+++ b/.github/workflows/cygwin.yml
@@ -0,0 +1,75 @@
+name: Cygwin
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  make:
+    runs-on: windows-2022
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    steps:
+      - run: git config --global core.autocrlf input
+
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - name: Setup Cygwin
+        uses: cygwin/cygwin-install-action@711d29f3da23c9f4a1798e369a6f01198c13b11a # v6.1
+        with:
+          packages: ruby gcc-core make autoconf libtool libssl-devel libyaml-devel libffi-devel zlib-devel rubygems
+          site: |
+            https://cygwin.osuosl.org/
+
+      - name: configure
+        run: |
+          ./autogen.sh
+          ./configure --disable-install-doc
+        shell: C:\cygwin\bin\bash.EXE --noprofile --norc -e -o igncr -o pipefail {0}
+
+      - name: Extract bundled gems
+        run: |
+          make ruby -j5
+          make extract-gems
+        shell: C:\cygwin\bin\bash.EXE --noprofile --norc -e -o igncr -o pipefail {0}
+
+      - name: make all
+        timeout-minutes: 30
+        run: make -j4 V=1
+        shell: C:\cygwin\bin\bash.EXE --noprofile --norc -e -o igncr -o pipefail {0}
+
+      - uses: ./.github/actions/slack
+        with:
+          label: Cygwin
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
diff --git a/.github/workflows/default_gems_list.yml b/.github/workflows/default_gems_list.yml
new file mode 100644
index 0000000000..68f2d18dd6
--- /dev/null
+++ b/.github/workflows/default_gems_list.yml
@@ -0,0 +1,99 @@
+name: Update default gems list
+on: [push, pull_request, merge_group]
+
+env:
+  UPDATE_NEWS_ENABLED: true
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  update_default_gems_list:
+    name: Update default gems list
+
+    permissions:
+      contents: write # for Git to git push
+
+    runs-on: ubuntu-latest
+
+    if: ${{ github.repository == 'ruby/ruby' }}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          token: ${{ (github.repository == 'ruby/ruby' && !startsWith(github.event_name, 'pull')) && secrets.MATZBOT_AUTO_UPDATE_TOKEN || secrets.GITHUB_TOKEN }}
+
+      - id: gems
+        run: true
+        if: ${{ github.ref == 'refs/heads/master' }}
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          makeup: true
+          # Skip overwriting MATZBOT_AUTO_UPDATE_TOKEN
+          checkout: '' # false (ref: https://github.com/actions/runner/issues/2238)
+        if: ${{ steps.gems.outcome == 'success' }}
+
+      - name: Download previous gems list
+        run: |
+          data=default_gems.json
+          mkdir -p .downloaded-cache
+          ln -s .downloaded-cache/$data .
+          curl --retry 5 --retry-connrefused --retry-delay 2 --retry-max-time 60 -O -R -z ./$data https://stdgems.org/$data
+        if: ${{ steps.gems.outcome == 'success' }}
+
+      - name: Make default gems list
+        run: |
+          #!ruby
+          require 'rubygems'
+          $:.unshift "lib"
+          rgver = File.foreach("lib/rubygems.rb") do |line|
+            break $1 if /^\s*VERSION\s*=\s*"([^"]+)"/ =~ line
+          end
+          gems = Dir.glob("{ext,lib}/**/*.gemspec").map do |f|
+            spec = Gem::Specification.load(f)
+            "#{spec.name} #{spec.version}"
+          end.sort
+          File.open("gems/default_gems", "w") do |f|
+            f.puts "RubyGems #{rgver}"
+            f.puts gems
+          end
+        shell: ruby --disable=gems {0}
+        if: ${{ steps.gems.outcome == 'success' }}
+
+      - name: Maintain updated gems list in NEWS
+        run: |
+          ruby tool/update-NEWS-gemlist.rb default
+        if: ${{ steps.gems.outcome == 'success' && env.UPDATE_NEWS_ENABLED == 'true' }}
+
+      - name: Check diffs
+        id: diff
+        run: |
+          git diff --color --no-ext-diff --ignore-submodules --exit-code NEWS.md ||
+          echo update=true >> $GITHUB_OUTPUT
+        if: ${{ steps.gems.outcome == 'success' }}
+
+      - name: Commit
+        run: |
+          git pull --ff-only origin ${GITHUB_REF#refs/heads/}
+          git commit --message="Update default gems list at ${GITHUB_SHA:0:30} [ci skip]" NEWS.md
+          git push origin ${GITHUB_REF#refs/heads/}
+        env:
+          EMAIL: svn-admin@ruby-lang.org
+          GIT_AUTHOR_NAME: git
+          GIT_COMMITTER_NAME: git
+        if: >-
+          ${{
+          github.repository == 'ruby/ruby' &&
+          !startsWith(github.event_name, 'pull') &&
+          steps.diff.outputs.update
+          }}
+
+      - uses: ./.github/actions/slack
+        with:
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
diff --git a/.github/workflows/dependabot_automerge.yml b/.github/workflows/dependabot_automerge.yml
new file mode 100644
index 0000000000..2e4dc8d7a2
--- /dev/null
+++ b/.github/workflows/dependabot_automerge.yml
@@ -0,0 +1,32 @@
+# from https://github.com/gofiber/swagger/blob/main/.github/workflows/dependabot_automerge.yml
+name: Dependabot auto-merge
+on:
+  pull_request:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  automerge:
+    runs-on: ubuntu-latest
+    if: github.event.pull_request.user.login == 'dependabot[bot]' && github.repository == 'ruby/ruby'
+    steps:
+      - name: Dependabot metadata
+        uses: dependabot/fetch-metadata@25dd0e34f4fe68f24cc83900b1fe3fe149efef98 # v3.1.0
+        id: metadata
+
+      - name: Wait for status checks
+        uses: lewagon/wait-on-check-action@9312864dfbc9fd208e9c0417843430751c042800 # v1.7.0
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          ref: ${{ github.event.pull_request.head.sha || github.sha }}
+          check-regexp: 'make \(check, .*\)'
+          wait-interval: 30
+
+      - name: Auto-merge for Dependabot PRs
+        if: ${{ steps.metadata.outputs.update-type == 'version-update:semver-minor' || steps.metadata.outputs.update-type == 'version-update:semver-patch' }}
+        run: gh pr merge --auto --rebase "$PR_URL"
+        env:
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          GITHUB_TOKEN: ${{ secrets.MATZBOT_DEPENDABOT_MERGE_TOKEN }}
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
new file mode 100644
index 0000000000..d0a8024b05
--- /dev/null
+++ b/.github/workflows/labeler.yml
@@ -0,0 +1,15 @@
+name: "Pull Request Labeler"
+on:
+- pull_request_target
+
+permissions:
+  contents: read
+
+jobs:
+  labeler:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/labeler@f27b608878404679385c85cfa523b85ccb86e213 # v6.1.0
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
new file mode 100644
index 0000000000..4f1807121f
--- /dev/null
+++ b/.github/workflows/macos.yml
@@ -0,0 +1,191 @@
+name: macOS
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    # Do not use paths-ignore for required status checks
+    # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  make:
+    strategy:
+      matrix:
+        include:
+          - test_task: check
+            os: macos-26
+          - test_task: check
+            os: macos-15
+            configure_args: '--with-gcc=gcc-14'
+          - test_task: check
+            os: macos-26
+            configure_args: '--with-jemalloc --with-opt-dir=$(brew --prefix jemalloc)'
+          - test_task: check
+            os: macos-26
+            configure_args: '--with-gmp'
+          - test_task: test-all
+            test_opts: --repeat-count=2
+            os: macos-26
+          - test_task: test-bundler-parallel
+            os: macos-26
+          - test_task: test-bundled-gems
+            os: macos-26
+          - test_task: check
+            os: macos-15
+          - test_task: check
+            os: macos-15-intel
+          - test_task: check
+            os: macos-14
+      fail-fast: false
+
+    env:
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+
+    runs-on: ${{ matrix.os }}
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - name: Install libraries
+        uses: ./.github/actions/setup/macos
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+          clean: true
+          dummy-files: ${{ matrix.test_task == 'check' }}
+          # Set fetch-depth: 0 so that Launchable can receive commits information.
+          fetch-depth: 10
+
+      - name: make sure that kern.coredump=1
+        run: |
+          sysctl -n kern.coredump
+          sudo sysctl -w kern.coredump=1
+          sudo chmod -R +rwx /cores/
+
+      - name: Delete unused SDKs
+        # To free up disk space to not run out during the run
+        run: |
+          sudo rm -rf ~/.dotnet
+          sudo rm -rf /Library/Android
+          sudo rm -rf /Library/Developer/CoreSimulator
+        continue-on-error: true
+
+      - name: Run configure
+        run: ../src/configure -C --disable-install-doc ${ruby_configure_args} ${{ matrix.configure_args }}
+
+      - run: make prepare-gems
+        if: ${{ matrix.test_task == 'test-bundled-gems' }}
+
+      - run: make
+
+      - run: make hello
+
+      - name: runirb
+        run: |
+          echo IRB::VERSION | make runirb RUNOPT="-- -f"
+
+      - name: Set test options for skipped tests
+        run: |
+          set -x
+          TESTS="$(echo "${{ matrix.skipped_tests }}" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|')"
+          echo "TESTS=${TESTS}" >> $GITHUB_ENV
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+
+      - name: Set up Launchable
+        id: launchable
+        uses: ./.github/actions/launchable/setup
+        with:
+          os: ${{ matrix.os }}
+          test-opts: ${{ matrix.test_opts }}
+          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
+          builddir: build
+          srcdir: src
+        continue-on-error: true
+        timeout-minutes: 3
+
+      - name: Set extra test options
+        run: |
+          echo "TESTS=$TESTS ${{ matrix.test_opts }}" >> $GITHUB_ENV
+          echo "RUBY_TEST_TIMEOUT_SCALE=10" >> $GITHUB_ENV # With --repeat-count=2, flaky test by timeout occurs frequently for some reason
+        if: matrix.test_opts
+
+      - name: make ${{ matrix.test_task }}
+        run: |
+          test -n "${LAUNCHABLE_STDOUT}" && exec 1> >(tee "${LAUNCHABLE_STDOUT}")
+          test -n "${LAUNCHABLE_STDERR}" && exec 2> >(tee "${LAUNCHABLE_STDERR}")
+
+          ulimit -c unlimited
+          make -s ${{ matrix.test_task }} ${TESTS:+TESTS="$TESTS"}
+        timeout-minutes: 90
+        env:
+          RUBY_TESTOPTS: '-q --tty=no'
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ''
+          PRECHECK_BUNDLED_GEMS: 'no'
+          LAUNCHABLE_STDOUT: ${{ steps.launchable.outputs.stdout_report_path }}
+          LAUNCHABLE_STDERR: ${{ steps.launchable.outputs.stderr_report_path }}
+
+      - name: make skipped tests
+        run: |
+          make -s test-all TESTS="${TESTS//-n!\//-n/}"
+        env:
+          GNUMAKEFLAGS: ''
+          RUBY_TESTOPTS: '-v --tty=no'
+          PRECHECK_BUNDLED_GEMS: 'no'
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+        continue-on-error: ${{ matrix.continue-on-skipped_tests || false }}
+
+      - name: CAPI extensions
+        uses: ./.github/actions/capiext
+        with:
+          builddir: build
+        env:
+          RUBY_TESTOPTS: '-v --tty=no'
+        if: ${{ contains(matrix.extra_checks, 'capi') }}
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.os }} / ${{ matrix.test_task }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+  result:
+    if: ${{ always() }}
+    name: ${{ github.workflow }} result
+    runs-on: ubuntu-latest
+    needs: [make]
+    steps:
+      - run: exit 1
+        working-directory:
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/mingw.yml b/.github/workflows/mingw.yml
new file mode 100644
index 0000000000..9a47e70f8c
--- /dev/null
+++ b/.github/workflows/mingw.yml
@@ -0,0 +1,246 @@
+name: MinGW
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+# Notes:
+# Actions console encoding causes issues, see test-all & test-spec steps
+#
+jobs:
+  make:
+    runs-on: windows-${{ matrix.os }}
+
+    name: ${{ github.workflow }} (${{ matrix.msystem }})
+
+    env:
+      MSYSTEM: ${{ matrix.msystem }}
+      MSYS2_ARCH: >-
+        ${{ case(
+        contains(matrix.msystem, 'arm64'), 'aarch64',
+        contains(matrix.msystem, '64'), 'x86_64',
+        'i686'
+        ) }}
+      MINGW_PACKAGE_PREFIX: >-
+        mingw-w${{
+        case(endsWith(matrix.msystem, '64'), '64', '32')
+        }}-${{ case(
+        startsWith(matrix.msystem, 'clang'), 'clang',
+        startsWith(matrix.msystem, 'ucrt'), 'ucrt',
+        'mingw'
+        ) }}-${{ case(
+        contains(matrix.msystem, 'arm64'), 'aarch64',
+        endsWith(matrix.msystem, '64'), 'x86_64',
+        'i686'
+        ) }}
+      CFLAGS: '-mtune=generic -O3 -pipe'
+      CXXFLAGS: '-mtune=generic -O3 -pipe'
+      CPPFLAGS: '-D_FORTIFY_SOURCE=2 -D__USE_MINGW_ANSI_STDIO=1 -DFD_SETSIZE=2048'
+      LDFLAGS: '-pipe'
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+
+    strategy:
+      matrix:
+        include:
+          # To mitigate flakiness of MinGW CI, we test only one runtime that newer MSYS2 uses.
+          # Ruby 3.2 is the first Windows Ruby to use OpenSSL 3.x
+          - msystem: 'UCRT64'
+            os: 2022
+            test_task: 'check'
+            test-all-opts: '--name=!/TestObjSpace#test_reachable_objects_during_iteration/'
+          - msystem: 'CLANGARM64'
+            os: 11-arm
+            test_task: 'check'
+      fail-fast: false
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/vcpkg'))
+      )}}
+
+    steps:
+      - uses: msys2/setup-msys2@e9898307ac31d1a803454791be09ab9973336e1c # v2.31.1
+        id: msys2
+        with:
+          msystem: ${{ matrix.msystem }}
+          update: true
+          install: >-
+            git
+            make
+            ruby
+            autoconf
+            ${{ env.MINGW_PACKAGE_PREFIX }}-gcc
+            ${{ env.MINGW_PACKAGE_PREFIX }}-ragel
+            ${{ env.MINGW_PACKAGE_PREFIX }}-openssl
+            ${{ env.MINGW_PACKAGE_PREFIX }}-libyaml
+            ${{ env.MINGW_PACKAGE_PREFIX }}-libffi
+
+      - name: Set up env
+        id: setup-env
+        working-directory:
+        run: |
+          $msys2 = ${env:MSYS2_LOCATION}
+          $msystem = ${env:MSYSTEM}.ToLower()
+          echo $msys2\usr\bin $msys2\$msystem\bin |
+            Tee-Object ${env:GITHUB_PATH} -Append -Encoding utf-8
+
+          # Use the fast device for the temporary directory.
+          # %TEMP% is inconsistent with %TMP% and test-all expects they are consistent.
+          # https://github.com/actions/virtual-environments/issues/712#issuecomment-613004302
+          $tmp = ${env:RUNNER_TEMP}
+          echo HOME=$home TMP=$tmp TEMP=$tmp TMPDIR=$tmp |
+            Tee-Object ${env:GITHUB_ENV} -Append -Encoding utf-8
+        shell: pwsh             # cmd.exe does not strip spaces before `|`.
+        env:
+          MSYS2_LOCATION: ${{ steps.msys2.outputs.msys2-location }}
+          MSYSTEM: ${{ matrix.msystem }}
+
+      - name: Remove Strawberry Perl pkg-config
+        working-directory:
+        # `pkg-config.bat` included in Strawberry Perl is written in
+        # Perl and doesn't work when another msys2 `perl` precede its
+        # own `perl`.
+        #
+        # ```
+        # Can't find C:\Strawberry\perl\bin\pkg-config.bat on PATH, '.' not in PATH.
+        # ```
+        run: |
+          Get-Command pkg-config.bat | % { ren $_.path ($_.path + "~") }
+        shell: pwsh
+
+      - name: Misc system & package info
+        working-directory:
+        run: |
+          group() { echo ::group::$'\e[94;1m'"$*"$'\e[m'; }
+          endgroup() { echo ::endgroup::; }
+
+          group Path
+          cygpath -wa / . $(type -p cygpath bash sh)
+          endgroup
+
+          I() {
+              group $1
+              run Where type -pa $1 && { [ $# -eq 1 ] || run Version "$@"; } ||
+                  failed+=($1)
+              endgroup
+          }
+          run() { local w m=$1; shift; w="$("$@")" && show "$m" && indent "$w"; }
+          indent() { [ -z "$1" ] || echo "$1" | /bin/sed '/^$/!s/^/  /'; }
+          show() { echo $'\e[96m'"$*"$'\e[m'; }
+
+          failed=()
+
+          I gcc.exe --version
+          I ragel.exe --version
+          I make.exe --version
+          I openssl.exe version
+          I libcrypto-3-x64.dll
+          I libssl-3-x64.dll
+
+          group Packages
+          pacman -Qs $MINGW_PACKAGE_PREFIX-* | /bin/sed -n "s,local/$MINGW_PACKAGE_PREFIX-,,p"
+          endgroup
+
+          [ ${#failed[@]} -eq 0 ]
+        shell: sh
+
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+          # Set fetch-depth: 10 so that Launchable can receive commits information.
+          fetch-depth: 10
+
+      - name: configure
+        run: >
+          ../src/configure --disable-install-doc --prefix=/.
+          --build=$CHOST --host=$CHOST --target=$CHOST
+        shell: sh
+        env:
+          CHOST: ${{ env.MSYS2_ARCH }}-w64-mingw32
+
+      - name: make all
+        timeout-minutes: 30
+        run: make -j4
+
+      - name: make install
+        run: make DESTDIR=../install install-nodoc
+
+      - name: Set up Launchable
+        uses: ./.github/actions/launchable/setup
+        with:
+          os: windows-2022
+          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
+          builddir: build
+          srcdir: src
+          test-tasks: '["test", "test-all", "test-spec"]'
+        continue-on-error: true
+        timeout-minutes: 3
+
+      - name: test
+        timeout-minutes: 30
+        run: make test test-tool
+        env:
+          GNUMAKEFLAGS: ''
+          RUBY_TESTOPTS: '-v --tty=no'
+        if: ${{ matrix.test_task == 'check' || matrix.test_task == 'test' }}
+
+      - name: test-all
+        timeout-minutes: 45
+        run: |
+          make ${{ StartsWith(matrix.test_task, 'test/') && matrix.test_task || 'test-all' }}
+        env:
+          RUBY_TESTOPTS: >-
+            --retry --job-status=normal --show-skip --timeout-scale=1.5 -j4
+            ${{ matrix.test-all-opts }}
+            ${{ env.TESTS }}
+          BUNDLER_VERSION:
+        if: ${{ matrix.test_task == 'check' || matrix.test_task == 'test-all' || StartsWith(matrix.test_task, 'test/') }}
+
+      - name: test-spec
+        timeout-minutes: 10
+        run: |
+          make ${{ StartsWith(matrix.test_task, 'spec/') && matrix.test_task || 'test-spec' }}
+        if: ${{ matrix.test_task == 'check' || matrix.test_task == 'test-spec' || StartsWith(matrix.test_task, 'spec/') }}
+
+      - uses: ./src/.github/actions/slack
+        with:
+          label: ${{ matrix.msystem }} / ${{ matrix.test_task }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+defaults:
+  run:
+    working-directory: build
+    shell: cmd
diff --git a/.github/workflows/modgc.yml b/.github/workflows/modgc.yml
new file mode 100644
index 0000000000..218127aad7
--- /dev/null
+++ b/.github/workflows/modgc.yml
@@ -0,0 +1,179 @@
+name: ModGC
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    # Do not use paths-ignore for required status checks
+    # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  check:
+    strategy:
+      matrix:
+        gc:
+          - name: default
+          - name: mmtk
+            mmtk_build: release
+        os: [macos-26, ubuntu-latest]
+        include:
+          - test_task: check
+      fail-fast: false
+
+    env:
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      RUBY_DEBUG: ci
+
+    runs-on: ${{ matrix.os }}
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - name: Install libraries (macOS)
+        uses: ./.github/actions/setup/macos
+        if: ${{ contains(matrix.os, 'macos') }}
+
+      - name: Install libraries (Ubuntu)
+        uses: ./.github/actions/setup/ubuntu
+        if: ${{ contains(matrix.os, 'ubuntu') }}
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.1'
+          bundler: none
+        if: ${{ contains(matrix.os, 'ubuntu') }}
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+          clean: true
+          dummy-files: false
+          # Set fetch-depth: 10 so that Launchable can receive commits information.
+          fetch-depth: 10
+
+      - name: make sure that kern.coredump=1
+        run: |
+          sysctl -n kern.coredump
+          sudo sysctl -w kern.coredump=1
+          sudo chmod -R +rwx /cores/
+        if: ${{ contains(matrix.os, 'macos') }}
+
+      - name: Delete unused SDKs
+        # To free up disk space to not run out during the run
+        run: |
+          sudo rm -rf ~/.dotnet
+          sudo rm -rf /Library/Android
+          sudo rm -rf /Library/Developer/CoreSimulator
+        continue-on-error: true
+        if: ${{ contains(matrix.os, 'macos') }}
+
+      - name: Setup Ruby GC Directory
+        run: |
+          echo "MODULAR_GC_DIR=$HOME/ruby_gc" >> $GITHUB_ENV
+
+      - name: Run configure
+        env:
+          arch: ${{ matrix.arch }}
+        run: |
+          ${SETARCH} ../src/configure -C --disable-install-doc --with-modular-gc="${MODULAR_GC_DIR}" \
+          ${arch:+--target=$arch-$OSTYPE --host=$arch-$OSTYPE}
+
+      - uses: actions-rust-lang/setup-rust-toolchain@46268bd060767258de96ed93c1251119784f2ab6 # v1.16.1
+        with:
+          cache-bin: false
+      - name: Set MMTk environment variables
+        run: |
+          echo 'EXCLUDES=../src/test/.excludes-mmtk' >> $GITHUB_ENV
+          echo 'MSPECOPT=-B../src/spec/mmtk.mspec' >> $GITHUB_ENV
+        if: ${{ matrix.gc.name == 'mmtk' }}
+
+      - run: ${SETARCH} make
+
+      - name: Build Modular  GC
+        run: |
+          echo "RUBY_GC_LIBRARY=${{ matrix.gc.name }}" >> $GITHUB_ENV
+          make install-modular-gc MODULAR_GC=${{ matrix.gc.name }} MMTK_BUILD=${{ matrix.gc.mmtk_build }}
+          make distclean-modular-gc MODULAR_GC=${{ matrix.gc.name }}
+
+      - run: ${SETARCH} make hello
+
+      - name: Set test options for skipped tests
+        run: |
+          set -x
+          TESTS="$(echo "${{ matrix.skipped_tests }}" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|')"
+          echo "TESTS=${TESTS}" >> $GITHUB_ENV
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+
+      - name: Set up Launchable
+        id: launchable
+        uses: ./.github/actions/launchable/setup
+        with:
+          os: ${{ matrix.os || 'ubuntu-22.04' }}
+          test-opts: ${{ matrix.configure }}
+          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
+          builddir: build
+          srcdir: src
+        continue-on-error: true
+        timeout-minutes: 3
+
+      - name: make ${{ matrix.test_task }}
+        run: |
+          test -n "${LAUNCHABLE_STDOUT}" && exec 1> >(tee "${LAUNCHABLE_STDOUT}")
+          test -n "${LAUNCHABLE_STDERR}" && exec 2> >(tee "${LAUNCHABLE_STDERR}")
+
+          ${SETARCH} make -s ${{ matrix.test_task }} \
+            ${TESTS:+TESTS="$TESTS"} \
+            ${{ !contains(matrix.test_task, 'bundle') && 'RUBYOPT=-w' || '' }}
+        timeout-minutes: ${{ matrix.gc.timeout || 40 }}
+        env:
+          RUBY_TESTOPTS: '-q --tty=no'
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ''
+          PRECHECK_BUNDLED_GEMS: 'no'
+          LAUNCHABLE_STDOUT: ${{ steps.launchable.outputs.stdout_report_path }}
+          LAUNCHABLE_STDERR: ${{ steps.launchable.outputs.stderr_report_path }}
+
+      - name: make skipped tests
+        run: |
+          ${SETARCH} make -s test-all TESTS="${TESTS//-n!\//-n/}"
+        env:
+          GNUMAKEFLAGS: ''
+          RUBY_TESTOPTS: '-v --tty=no'
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+        continue-on-error: ${{ matrix.continue-on-skipped_tests || false }}
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.test_task }} ${{ matrix.configure }}${{ matrix.arch }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/parse_y.yml b/.github/workflows/parse_y.yml
new file mode 100644
index 0000000000..7c26e87e57
--- /dev/null
+++ b/.github/workflows/parse_y.yml
@@ -0,0 +1,101 @@
+name: parse.y
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  make:
+    strategy:
+      matrix:
+        include:
+          - test_task: check
+          - test_task: test-bundler-parallel
+          - test_task: test-bundled-gems
+      fail-fast: false
+
+    env:
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      RUBY_DEBUG: ci
+      SETARCH: ${{ matrix.arch && format('setarch {0}', matrix.arch) }}
+
+    runs-on: ubuntu-22.04
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/ubuntu
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.1'
+          bundler: none
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+          clean: true
+          dummy-files: ${{ matrix.test_task == 'check' }}
+
+      - name: Run configure
+        run: ../src/configure -C --disable-install-doc cppflags=-DRUBY_DEBUG --with-parser=parse.y
+
+      - run: make
+
+      - run: make TESTRUN_SCRIPT='-renvutil -v -e "exit EnvUtil.current_parser == %[parse.y]"' run
+        env:
+          RUNOPT0: -I$(tooldir)/lib
+
+      - name: make ${{ matrix.test_task }}
+        run: make -s ${{ matrix.test_task }} RUN_OPTS="$RUN_OPTS" SPECOPTS="$SPECOPTS"
+        env:
+          RUBY_TESTOPTS: ${{ matrix.testopts }}
+          EXCLUDES: '../src/test/.excludes-parsey'
+          RUN_OPTS: ${{ matrix.run_opts || '--parser=parse.y' }}
+          SPECOPTS: ${{ matrix.specopts || '-T --parser=parse.y' }}
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ''
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.run_opts }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/post_push.yml b/.github/workflows/post_push.yml
new file mode 100644
index 0000000000..e351c8c286
--- /dev/null
+++ b/.github/workflows/post_push.yml
@@ -0,0 +1,97 @@
+name: Post-push
+on:
+  push:
+    branches:
+      - master
+      - 'ruby_*_*'
+
+permissions:
+  contents: read
+
+jobs:
+  hooks:
+    name: Post-push hooks
+    runs-on: ubuntu-latest
+    if: ${{ github.repository == 'ruby/ruby' }}
+    steps:
+      - name: Sync git.ruby-lang.org
+        id: sync-git
+        continue-on-error: true
+        run: |
+          mkdir -p ~/.ssh
+          (umask 066; printenv RUBY_GIT_SYNC_PRIVATE_KEY > ~/.ssh/id_ed25519)
+          ssh-keyscan -t ed25519 git.ruby-lang.org >> ~/.ssh/known_hosts
+          ssh -i ~/.ssh/id_ed25519 git-sync@git.ruby-lang.org "sudo -u git /home/git/git.ruby-lang.org/bin/update-ruby.sh $GITHUB_REF"
+        env:
+          GITHUB_REF: ${{ github.ref }}
+          RUBY_GIT_SYNC_PRIVATE_KEY: ${{ secrets.RUBY_GIT_SYNC_PRIVATE_KEY }}
+        if: ${{ github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/ruby_') }}
+
+      - name: Fetch changesets on bugs.ruby-lang.org
+        run: |
+          curl "https://bugs.ruby-lang.org/sys/fetch_changesets?key=${REDMINE_SYS_API_KEY}" -s --fail-with-body -w '* status: %{http_code}\n'
+        env:
+          REDMINE_SYS_API_KEY: ${{ secrets.REDMINE_SYS_API_KEY }}
+        if: ${{ github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/ruby_') }}
+
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          fetch-depth: 500 # for notify-slack-commits
+          token: ${{ secrets.MATZBOT_AUTO_UPDATE_TOKEN }}
+
+      - name: Notify commit to Slack
+        run: ruby tool/notify-slack-commits.rb "$GITHUB_OLD_SHA" "$GITHUB_NEW_SHA" refs/heads/master
+        env:
+          GITHUB_OLD_SHA: ${{ github.event.before }}
+          GITHUB_NEW_SHA: ${{ github.event.after }}
+          SLACK_WEBHOOK_URL_ALERTS: ${{ secrets.SLACK_WEBHOOK_URL_ALERTS }}
+          SLACK_WEBHOOK_URL_COMMITS: ${{ secrets.SLACK_WEBHOOK_URL_COMMITS }}
+          SLACK_WEBHOOK_URL_RUBY_JP: ${{ secrets.SLACK_WEBHOOK_URL_RUBY_JP }}
+        if: ${{ github.ref == 'refs/heads/master' }}
+
+      - name: Notify commit to ruby-cvs
+        run: |
+          SENDMAIL="ssh -i ${HOME}/.ssh/id_ed25519 git-sync@git.ruby-lang.org /usr/sbin/sendmail" \
+            ruby tool/commit-email.rb . ruby-cvs@g.ruby-lang.org \
+            "$GITHUB_OLD_SHA" "$GITHUB_NEW_SHA" "$GITHUB_REF" \
+            --viewer-uri "https://github.com/ruby/ruby/commit/" \
+            --error-to cvs-admin@ruby-lang.org
+        env:
+          GITHUB_OLD_SHA: ${{ github.event.before }}
+          GITHUB_NEW_SHA: ${{ github.event.after }}
+          GITHUB_REF: ${{ github.ref }}
+        if: ${{ github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/ruby_') }}
+
+      - name: Auto-correct code styles
+        run: |
+          set -x
+          ruby tool/auto-style.rb "$GITHUB_OLD_SHA" "$GITHUB_NEW_SHA" refs/heads/master
+        env:
+          GITHUB_OLD_SHA: ${{ github.event.before }}
+          GITHUB_NEW_SHA: ${{ github.event.after }}
+          GIT_AUTHOR_NAME: git
+          GIT_COMMITTER_NAME: git
+          EMAIL: svn-admin@ruby-lang.org
+        if: ${{ github.ref == 'refs/heads/master' }}
+
+      - name: Push PR notes to GitHub
+        id: pr-notes
+        continue-on-error: true
+        run: ruby tool/notes-github-pr.rb "$(pwd)/.git" "$GITHUB_OLD_SHA" "$GITHUB_NEW_SHA" refs/heads/master
+        env:
+          GITHUB_OLD_SHA: ${{ github.event.before }}
+          GITHUB_NEW_SHA: ${{ github.event.after }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GIT_AUTHOR_NAME: git
+          GIT_COMMITTER_NAME: git
+          EMAIL: svn-admin@ruby-lang.org
+        if: ${{ github.ref == 'refs/heads/master' }}
+
+      - name: Check for failures
+        run: exit 1
+        if: ${{ steps.sync-git.outcome == 'failure' || steps.pr-notes.outcome == 'failure' }}
+
+      - uses: ./.github/actions/slack
+        with:
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
diff --git a/.github/workflows/pr-playground.yml b/.github/workflows/pr-playground.yml
new file mode 100644
index 0000000000..dc4f075a38
--- /dev/null
+++ b/.github/workflows/pr-playground.yml
@@ -0,0 +1,131 @@
+name: Post Playground link to PR
+on:
+  pull_request_target:
+    types: [labeled]
+  workflow_run:
+    workflows: ["WebAssembly"]
+    types: [completed]
+
+permissions:
+  contents: read
+  actions: read
+
+jobs:
+  post-summary:
+    name: Post Playground link
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    # Post a comment only if the PR status check is passed and the PR is labeled with `Playground`.
+    # Triggered twice: when the PR is labeled and when PR build is passed.
+    if: >-
+      ${{ false
+      || (true
+        && github.event_name == 'pull_request_target'
+        && contains(github.event.pull_request.labels.*.name, 'Playground'))
+      || (true
+        && github.event_name == 'workflow_run'
+        && github.event.workflow_run.conclusion == 'success'
+        && github.event.workflow_run.event == 'pull_request')
+      }}
+    steps:
+      - uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const fs = require('fs/promises');
+
+            const buildWorkflowPath = '.github/workflows/wasm.yml';
+            const findSuccessfuBuildRun = async (pr) => {
+              const opts = github.rest.actions.listWorkflowRunsForRepo.endpoint.merge({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                status: 'success',
+                branch: pr.head.ref,
+              });
+              const runs = await github.paginate(opts);
+              const buildRun = runs.find(run => run.path == buildWorkflowPath);
+              return buildRun;
+            }
+
+            const postComment = async (body, pr) => {
+              const { data: comments } = await github.rest.issues.listComments({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: pr.number,
+              });
+
+              const commentOpts = { owner: context.repo.owner, repo: context.repo.repo, body: comment };
+
+              const existingComment = comments.find(comment => comment.body.startsWith(magicComment));
+              if (existingComment) {
+                core.info(`Updating existing comment: ${existingComment.html_url}`);
+                await github.rest.issues.updateComment({
+                  ...commentOpts, comment_id: existingComment.id
+                });
+              } else {
+                await github.rest.issues.createComment({
+                  ...commentOpts, issue_number: pr.number
+                });
+              }
+            }
+
+            const derivePRNumber = async () => {
+              if (context.payload.pull_request) {
+                return context.payload.pull_request.number;
+              }
+              // Workaround for https://github.com/orgs/community/discussions/25220
+
+              const { data: { artifacts } } = await github.rest.actions.listWorkflowRunArtifacts({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                run_id: context.payload.workflow_run.id,
+              });
+              const artifact = artifacts.find(artifact => artifact.name == 'github-pr-info');
+              if (!artifact) {
+                throw new Error('Cannot find github-pr-info.txt artifact');
+              }
+
+              const { data } = await github.rest.actions.downloadArtifact({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                artifact_id: artifact.id,
+                archive_format: 'zip',
+              });
+
+              await fs.writeFile('pr-info.zip', Buffer.from(data));
+              await exec.exec('unzip', ['pr-info.zip']);
+              return await fs.readFile('github-pr-info.txt', 'utf8');
+            }
+
+            const prNumber = await derivePRNumber();
+
+            const { data: pr } = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: prNumber,
+            });
+
+            core.info(`Checking if the PR ${prNumber} is labeled with Playground...`);
+            if (!pr.labels.some(label => label.name == 'Playground')) {
+              core.info(`The PR is not labeled with Playground.`);
+              return;
+            }
+
+            core.info(`Checking if the build is successful for ${pr.head.ref} in ${pr.head.repo.owner.login}/${pr.head.repo.name}...`);
+            const buildRun = await findSuccessfuBuildRun(pr);
+            if (!buildRun) {
+              core.info(`No successful build run found for ${buildWorkflowPath} on ${pr.head.ref} yet.`);
+              return;
+            }
+            core.info(`Found a successful build run: ${buildRun.html_url}`);
+
+            const runLink = `${process.env.GITHUB_SERVER_URL}/${process.env.GITHUB_REPOSITORY}/actions/runs/${process.env.GITHUB_RUN_ID}`;
+            const magicComment = `<!-- AUTO-GENERATED-COMMENT-PR-PLAYGROUND -->`;
+            const comment = `${magicComment}
+            **Try on Playground**: https://ruby.github.io/play-ruby?run=${buildRun.id}
+            This is an automated comment by [\`pr-playground.yml\`](${runLink}) workflow.
+            `;
+            core.info(`Comment: ${comment}`);
+            await postComment(comment, pr);
+
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000000..5d4a31d287
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,114 @@
+name: Publish Ruby packages
+
+on:
+  repository_dispatch:
+    types:
+      - release
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version of the Ruby package to release'
+        required: true
+        default: '4.0.0'
+
+permissions:
+  contents: read
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: 3.3.4
+
+      - name: Store Ruby version
+        env:
+          RUBY_VERSION: ${{ github.event.client_payload.version || github.event.inputs.version }}
+        run: |
+          echo "RUBY_VERSION=${RUBY_VERSION}" >> $GITHUB_ENV
+
+      - name: Store ABI version
+        run: echo "ABI_VERSION=$(echo ${RUBY_VERSION} | cut -d '.' -f 1-2)" >> $GITHUB_ENV
+
+      - name: Copy draft package `/tmp` to `/pub` directory
+        run: tool/release.sh ${RUBY_VERSION}
+        env:
+          AWS_ACCESS_KEY_ID: ${{ secrets.FTP_R_L_O_AWS_ACCESS_KEY_ID }}
+          AWS_SECRET_ACCESS_KEY: ${{ secrets.FTP_R_L_O_AWS_SECRET_ACCESS_KEY }}
+          AWS_DEFAULT_REGION: us-west-2
+
+      - name: Purge URLs of release package
+        run: |
+          curl -X POST \
+            -H "Fastly-Key: ${{ secrets.FASTLY_PURGE_TOKEN }}" \
+            https://api.fastly.com/purge/cache.ruby-lang.org/pub/ruby/${ABI_VERSION}/ruby-${RUBY_VERSION}.tar.gz
+          curl -X POST \
+            -H "Fastly-Key: ${{ secrets.FASTLY_PURGE_TOKEN }}" \
+            https://api.fastly.com/purge/cache.ruby-lang.org/pub/ruby/${ABI_VERSION}/ruby-${RUBY_VERSION}.tar.xz
+          curl -X POST \
+            -H "Fastly-Key: ${{ secrets.FASTLY_PURGE_TOKEN }}" \
+            https://api.fastly.com/purge/cache.ruby-lang.org/pub/ruby/${ABI_VERSION}/ruby-${RUBY_VERSION}.zip
+
+      - name: Create a release on GitHub
+        run: |
+          RELEASE_TAG=$(ruby tool/ruby-version.rb tag "${RUBY_VERSION}")
+          echo $RELEASE_TAG
+          PREVIOUS_RELEASE_TAG=$(ruby tool/ruby-version.rb previous-tag "${RUBY_VERSION}")
+          echo $PREVIOUS_RELEASE_TAG
+          tool/gen-github-release.rb $PREVIOUS_RELEASE_TAG $RELEASE_TAG --no-dry-run
+        env:
+          GITHUB_TOKEN: ${{ secrets.MATZBOT_AUTO_UPDATE_TOKEN }}
+
+      - name: Update versions index
+        run: |
+          curl -L -X POST \
+            -H "Authorization: Bearer ${{ secrets.MATZBOT_GITHUB_WORKFLOW_TOKEN }}" \
+            -H "Accept: application/vnd.github+json" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/ruby/actions/dispatches \
+            -d '{"event_type": "update_index"}'
+
+      - name: Build and push Docker images
+        run: |
+          curl -L -X POST \
+            -H "Authorization: Bearer ${{ secrets.MATZBOT_GITHUB_WORKFLOW_TOKEN }}" \
+            -H "Accept: application/vnd.github+json" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/ruby/docker-images/dispatches \
+            -d "{\"event_type\": \"build\", \"client_payload\": {\"ruby_version\": \"${RUBY_VERSION}\"}}"
+
+      - name: Build snapcraft packages
+        run: |
+          curl -L -X POST \
+            -H "Authorization: Bearer ${{ secrets.MATZBOT_GITHUB_WORKFLOW_TOKEN }}" \
+            -H "Accept: application/vnd.github+json" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/ruby/snap.ruby/dispatches \
+            -d "{\"event_type\": \"build\", \"client_payload\": {\"ruby_version\": \"${RUBY_VERSION}\"}}"
+
+      - name: Store the latest LTS version of OpenSSL
+        run: |
+          echo "OPENSSL_VERSION=`curl -s https://api.github.com/repos/openssl/openssl/releases | jq -r '.[].tag_name | select(startswith("openssl-3.0"))' | sort -Vr | head -n1 | cut -d'-' -f2`" >> $GITHUB_ENV
+
+      - name: Update ruby-build definition
+        run: |
+          curl -L -X POST \
+            -H "Authorization: Bearer ${{ secrets.RUBY_BUILD_WORKFLOW_TOKEN }}" \
+            -H "Accept: application/vnd.github+json" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/rbenv/ruby-build/dispatches \
+            -d "{\"event_type\": \"update-ruby\", \"client_payload\": {\"ruby_version\": \"${RUBY_VERSION}\", \"openssl_version\": \"${OPENSSL_VERSION}\"}}"
+
+      - name: Update all-ruby definition
+        run: |
+          curl -L -X POST \
+            -H "Authorization: Bearer ${{ secrets.MATZBOT_GITHUB_WORKFLOW_TOKEN }}" \
+            -H "Accept: application/vnd.github+json" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/ruby/all-ruby/dispatches \
+            -d '{"event_type": "update"}'
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000000..a35bcff99a
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,21 @@
+name: Start release workflow
+on:
+  push:
+    tags:
+      - '*'
+
+permissions:
+  contents: read
+
+jobs:
+  notify:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Build release package
+        run: |
+          curl -L -X POST \
+            -H "Authorization: Bearer ${{ secrets.MATZBOT_GITHUB_WORKFLOW_TOKEN }}" \
+            -H "Accept: application/vnd.github+json" \
+            -H "X-GitHub-Api-Version: 2022-11-28" \
+            https://api.github.com/repos/ruby/actions/dispatches \
+            -d "{\"event_type\": \"$GITHUB_REF\"}"
diff --git a/.github/workflows/rust-warnings.yml b/.github/workflows/rust-warnings.yml
new file mode 100644
index 0000000000..7ea7d0c950
--- /dev/null
+++ b/.github/workflows/rust-warnings.yml
@@ -0,0 +1,62 @@
+# Surface Rust warnings on PRs that touch any Rust code.
+# Not a required check so we never block people over new warnings
+# that might come from a new Rust version being released.
+name: Rust warnings
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+    paths:
+      - '**.rs'
+      - '!**.inc.rs'
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  rust-warnings:
+    env:
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+
+    runs-on: ubuntu-24.04
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/cargo'))
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - name: Install Rust
+        run: rustup default beta
+
+      - name: Rust warnings
+        shell: bash
+        run: |
+          set -eu
+          cargo check --quiet --all-features --message-format=json \
+            | jq -r 'select(.message.level | IN("warning", "error")) | .message.rendered' \
+            | tee messages.txt
+          (exit "${PIPESTATUS[0]}") && ! grep --quiet '[^[:space:]]' messages.txt
+
+      - name: "📜 `rustdoc` warnings"
+        shell: bash
+        run: |
+          set -eu
+          cargo doc --document-private-items --all --no-deps --message-format=json \
+            | jq -r 'select(.message.level | IN("warning", "error")) | .message.rendered' \
+            | tee messages.txt
+          (exit "${PIPESTATUS[0]}") && ! grep --quiet '[^[:space:]]' messages.txt
diff --git a/.github/workflows/scorecards.yml b/.github/workflows/scorecards.yml
new file mode 100644
index 0000000000..6dc4a7c6ad
--- /dev/null
+++ b/.github/workflows/scorecards.yml
@@ -0,0 +1,78 @@
+# This workflow uses actions that are not certified by GitHub. They are provided
+# by a third-party and are governed by separate terms of service, privacy
+# policy, and support documentation.
+
+name: Scorecard supply-chain security
+on:
+  # For Branch-Protection check. Only the default branch is supported. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#branch-protection
+  branch_protection_rule:
+  # To guarantee Maintained check is occasionally updated. See
+  # https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
+  schedule:
+    - cron: '39 3 * * 5'
+  # push:
+  #   branches: [ "master" ]
+
+# Declare default permissions as read only.
+permissions: read-all
+
+jobs:
+  analysis:
+    name: Scorecard analysis
+    runs-on: ubuntu-latest
+    # `publish_results: true` only works when run from the default branch. conditional can be removed if disabled.
+    if: github.event.repository.default_branch == github.ref_name || github.event_name == 'pull_request'
+    permissions:
+      # Needed to upload the results to code-scanning dashboard.
+      security-events: write
+      # Needed to publish results and get a badge (see publish_results below).
+      id-token: write
+      # Uncomment the permissions below if installing in a private repository.
+      # contents: read
+      # actions: read
+
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@4eaacf0543bb3f2c246792bd56e8cdeffafb205a # v2.4.3
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          # (Optional) "write" PAT token. Uncomment the `repo_token` line below if:
+          # - you want to enable the Branch-Protection check on a *public* repository, or
+          # - you are installing Scorecard on a *private* repository
+          # To create the PAT, follow the steps in https://github.com/ossf/scorecard-action?tab=readme-ov-file#authentication-with-fine-grained-pat-optional.
+          # repo_token: ${{ secrets.SCORECARD_TOKEN }}
+
+          # Public repositories:
+          #   - Publish results to OpenSSF REST API for easy access by consumers
+          #   - Allows the repository to include the Scorecard badge.
+          #   - See https://github.com/ossf/scorecard-action#publishing-results.
+          # For private repositories:
+          #   - `publish_results` will always be set to `false`, regardless
+          #     of the value entered here.
+          publish_results: true
+
+          # (Optional) Uncomment file_mode if you have a .gitattributes with files marked export-ignore
+          # file_mode: git
+
+      # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
+      # format to the repository Actions tab.
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+
+      # Upload the results to GitHub's code scanning dashboard (optional).
+      # Commenting out will disable upload of results to your repo's Code Scanning dashboard
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v4.36.2
+        with:
+          sarif_file: results.sarif
diff --git a/.github/workflows/spec_guards.yml b/.github/workflows/spec_guards.yml
new file mode 100644
index 0000000000..39714b13a4
--- /dev/null
+++ b/.github/workflows/spec_guards.yml
@@ -0,0 +1,68 @@
+name: Rubyspec Version Guards Check
+
+on:
+  push:
+    paths:
+      - '.github/workflows/spec_guards.yml'
+      - 'spec/**'
+      - '!spec/*.md'
+  pull_request:
+    paths:
+      - '.github/workflows/spec_guards.yml'
+      - 'spec/**'
+      - '!spec/*.md'
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  rubyspec:
+    name: Rubyspec
+
+    runs-on: ubuntu-22.04
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    strategy:
+      matrix:
+        # Specs from ruby/spec should still run on all supported Ruby versions.
+        # This also ensures the needed ruby_version_is guards are there, see spec/README.md.
+        ruby:
+          - ruby-3.3
+          - ruby-3.4
+          - ruby-4.0
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler: none
+
+      - run: gem install webrick
+
+      - run: ruby ../mspec/bin/mspec
+        working-directory: spec/ruby
+        env:
+          CHECK_LEAKS: true
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.ruby }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
diff --git a/.github/workflows/sync_default_gems.yml b/.github/workflows/sync_default_gems.yml
new file mode 100644
index 0000000000..3aaae5864f
--- /dev/null
+++ b/.github/workflows/sync_default_gems.yml
@@ -0,0 +1,80 @@
+name: Sync default gems
+
+env:
+  DEFAULT_GEM_SYNC_ENABLED: true
+
+on:
+  workflow_dispatch:
+    inputs:
+      gem:
+        required: true
+        description: 'Name of the gem to be synchronized'
+        type: string
+      before:
+        required: true
+        description: 'Gem commit SHA before sync'
+        type: string
+      after:
+        required: true
+        description: 'Gem commit SHA after sync'
+        type: string
+
+permissions:
+  contents: read
+
+jobs:
+  sync_default_gems:
+    name: Sync default gem ${{ github.event.inputs.gem }}
+
+    permissions:
+      contents: write # for Git to git push
+
+    runs-on: ubuntu-latest
+
+    if: ${{ github.repository == 'ruby/ruby' }}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        name: Check out ruby/ruby
+        with:
+          token: ${{ github.repository == 'ruby/ruby' && secrets.MATZBOT_AUTO_UPDATE_TOKEN || secrets.GITHUB_TOKEN }}
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.4'
+          bundler: none
+
+      - name: Run tool/sync_default_gems.rb
+        id: sync
+        run: |
+          ruby_before=$(git rev-parse HEAD)
+          set -x
+          ruby tool/sync_default_gems.rb "${gem_name}" "${gem_before}..${gem_after}"
+          if [[ "$(git rev-parse HEAD)" != "$ruby_before" ]]; then
+            echo update=true >> $GITHUB_OUTPUT
+          fi
+        env:
+          gem_name: ${{ github.event.inputs.gem }}
+          gem_before: ${{ github.event.inputs.before }}
+          gem_after: ${{ github.event.inputs.after }}
+          EMAIL: svn-admin@ruby-lang.org
+          GIT_AUTHOR_NAME: git
+          GIT_COMMITTER_NAME: git
+
+      - name: Push
+        run: |
+          git pull --rebase origin ${GITHUB_REF#refs/heads/}
+          git push origin ${GITHUB_REF#refs/heads/}
+        if: ${{ steps.sync.outputs.update && env.DEFAULT_GEM_SYNC_ENABLED == 'true' }}
+        env:
+          EMAIL: svn-admin@ruby-lang.org
+          GIT_AUTHOR_NAME: git
+          GIT_COMMITTER_NAME: git
+
+      - uses: ./.github/actions/slack
+        with:
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+          label: "${{ github.event.inputs.gem }} (<https://github.com/${{ github.event.inputs.gem == 'rubygems' && 'rubygems' || 'ruby' }}/${{ github.event.inputs.gem }}/compare/${{ github.event.inputs.before }}...${{ github.event.inputs.after }}|diff>)"
+          event_name: workflow_dispatch
+          extra_channel_id: C05FPKAU743 # alerts-sync
+        if: ${{ failure() }}
diff --git a/.github/workflows/tarball-macos.yml b/.github/workflows/tarball-macos.yml
new file mode 100644
index 0000000000..0d02cf6ae1
--- /dev/null
+++ b/.github/workflows/tarball-macos.yml
@@ -0,0 +1,101 @@
+name: tarball-macos (reusable)
+
+on:
+  workflow_call:
+    inputs:
+      archname:
+        description: 'archname (e.g. snapshot-master, snapshot-ruby_3_3)'
+        required: true
+        type: string
+      notify-release-channel:
+        description: 'Also send failure notifications to SNAPSHOT_SLACK_WEBHOOK_URL (schedule/release builds).'
+        required: false
+        type: boolean
+        default: false
+    secrets:
+      SIMPLER_ALERTS_URL:
+        required: false
+      SNAPSHOT_SLACK_WEBHOOK_URL:
+        required: false
+
+permissions:
+  contents: read
+
+jobs:
+  macos:
+    strategy:
+      matrix:
+        test_task: [check, test-bundled-gems, test-bundler-parallel]
+        os: [macos-26, macos-15, macos-14]
+        include:
+          - os: macos-15-intel
+            test_task: check
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
+    env:
+      ARCHNAME: ${{ inputs.archname }}
+    steps:
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: Packages
+          path: pkg
+      - name: Extract
+        run: tar xf pkg/*.tar.xz
+      - name: Install libraries
+        run: |
+          with_retry () {
+            "$@" || { sleep 5 && "$@"; } || { sleep 60 && "$@"; }
+          }
+          set -x
+          with_retry brew install gmp libffi openssl zlib autoconf automake libtool libyaml
+      - name: Set ENV
+        run: |
+          echo "JOBS=-j$((1 + $(sysctl -n hw.activecpu)))" >> $GITHUB_ENV
+      - name: configure
+        run: cd "$ARCHNAME/" && ./configure --with-openssl-dir=$(brew --prefix openssl) --with-libyaml-dir=$(brew --prefix libyaml)
+      - name: make
+        run: cd "$ARCHNAME/" && make $JOBS
+      - name: Tests
+        run: cd "$ARCHNAME/" && make $JOBS -s ${{ matrix.test_task }}
+        env:
+          RUBY_TESTOPTS: "-q --tty=no"
+          RUBY_DEBUG_TEST_NO_REMOTE: "1"
+      # leaked-globals since 2.7
+      - name: Leaked Globals
+        run: cd "$ARCHNAME/" && make -s leaked-globals
+        if: matrix.test_task == 'check'
+      - name: make install without root privilege
+        run: cd "$ARCHNAME/" && make $JOBS install DESTDIR="/tmp/destdir"
+        if: matrix.test_task == 'check'
+      - name: make install
+        run: cd "$ARCHNAME/" && sudo make $JOBS install
+        if: matrix.test_task == 'check'
+      - name: Verify installed binaries
+        run: |
+          /usr/local/bin/ruby -v
+          /usr/local/bin/gem -v
+          /usr/local/bin/bundle -v
+        if: matrix.test_task == 'check'
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout: .github/actions/slack
+          sparse-checkout-cone-mode: false
+          persist-credentials: false
+        if: ${{ failure() }}
+      - uses: ./.github/actions/slack
+        with:
+          label: "${{ matrix.os }} / ${{ matrix.test_task }}"
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+      - uses: ruby/action-slack@d260b61aa817726d5bedd22dd6cc305787fa4cdd # v4.0.0
+        with:
+          payload: |
+            {
+              "attachments": [{
+                "text": "${{ job.status }}: ${{ matrix.os }} / ${{ matrix.test_task }} <https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}|${{ inputs.archname }}>",
+                "color": "danger"
+              }]
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SNAPSHOT_SLACK_WEBHOOK_URL }}
+        if: failure() && inputs.notify-release-channel
diff --git a/.github/workflows/tarball-non-development.yml b/.github/workflows/tarball-non-development.yml
new file mode 100644
index 0000000000..db6230b301
--- /dev/null
+++ b/.github/workflows/tarball-non-development.yml
@@ -0,0 +1,87 @@
+name: tarball-non-development (reusable)
+
+on:
+  workflow_call: {}
+
+permissions:
+  contents: read
+
+jobs:
+  non_development:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - { variant: default,     remove_ruby: false, configure_extra: '' }
+          - { variant: no-ruby,     remove_ruby: true,  configure_extra: '' }
+          - { variant: baseruby-no, remove_ruby: false, configure_extra: '--with-baseruby=no' }
+    runs-on: ubuntu-24.04
+    env:
+      ruby_prefix: /tmp/ruby-snapshot
+    steps:
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: Packages
+          path: pkg
+      - name: Extract
+        run: tar xf pkg/*.tar.xz
+      - name: Substitute patchlevel
+        run: |
+          set -x
+          cd snapshot-*/
+          sed -i.orig 's/^\( *# *define  *RUBY_PATCHLEVEL\)  *-.*/\1 0/' version.h
+          diff -u version.h.orig version.h || :
+          rm -f version.h.orig
+      - name: Install libraries
+        run: |
+          set -x
+          sudo apt-get update -q || :
+          sudo apt-get install --no-install-recommends -q -y build-essential libssl-dev libyaml-dev zlib1g-dev libffi-dev libgmp-dev bison- autoconf-
+      - name: Remove host ruby
+        if: matrix.remove_ruby
+        run: |
+          set -x
+          sudo apt-get purge -y -q 'ruby*' || :
+          sudo rm -rf /opt/hostedtoolcache/Ruby
+          ! command -v ruby
+      - name: Set ENV
+        run: |
+          echo "JOBS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
+      - name: configure
+        run: cd snapshot-*/ && ./configure --prefix="${ruby_prefix}" ${{ matrix.configure_extra }}
+      - name: make
+        run: cd snapshot-*/ && make $JOBS
+      - name: Leaked Globals
+        run: cd snapshot-*/ && make -s leaked-globals
+      - name: make install
+        run: cd snapshot-*/ && make $JOBS install
+      - name: Set PATH
+        run: echo "PATH=${ruby_prefix}/bin:$PATH" >> $GITHUB_ENV
+      - name: Check patchlevel
+        id: check-patchlevel
+        run: |
+          exec "${ruby_prefix}/bin/ruby" -vx "$0"
+          #!ruby
+          puts "RUBY_PATCHLEVEL=#{RUBY_PATCHLEVEL.inspect}"
+          abort unless RUBY_PATCHLEVEL >= 0
+        working-directory: ${{ env.ruby_prefix }}
+        continue-on-error: true
+      - name: Check LOADPATH
+        id: check-loadpath
+        run: |
+          exec ${ruby_prefix}/bin/ruby -vx "$0"
+          #!ruby
+          paths = $:.grep(/\+/)
+          pp paths
+          abort unless paths.empty?
+        working-directory: ${{ env.ruby_prefix }}
+        continue-on-error: true
+      - name: Check pathnames
+        id: check-pathnames
+        run: |
+          ! find -name '*+*' | grep +
+        working-directory: ${{ env.ruby_prefix }}
+        continue-on-error: true
+      - name: result
+        run: false
+        if: ${{ contains(steps.*.outcome, 'failure') }}
diff --git a/.github/workflows/tarball-test-schedule.yml b/.github/workflows/tarball-test-schedule.yml
new file mode 100644
index 0000000000..6684b09edb
--- /dev/null
+++ b/.github/workflows/tarball-test-schedule.yml
@@ -0,0 +1,26 @@
+name: tarball-test-schedule
+on:
+  schedule:
+    - cron: '30 18 * * *' # Daily at 18:30 UTC
+  workflow_dispatch:
+
+permissions: {}
+
+jobs:
+  dispatch:
+    if: ${{ github.event_name != 'schedule' || github.repository == 'ruby/ruby' }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        branch:
+          - master
+          - ruby_4_0
+          - ruby_3_4
+          - ruby_3_3
+    steps:
+      - name: Trigger tarball-test on ${{ matrix.branch }}
+        run: gh workflow run tarball-test.yml --ref "$BRANCH" --repo "$GITHUB_REPOSITORY" -f notify-release-channel=true
+        env:
+          BRANCH: ${{ matrix.branch }}
+          GH_TOKEN: ${{ secrets.MATZBOT_GITHUB_ACTION_TOKEN }}
diff --git a/.github/workflows/tarball-test.yml b/.github/workflows/tarball-test.yml
new file mode 100644
index 0000000000..f75d76761a
--- /dev/null
+++ b/.github/workflows/tarball-test.yml
@@ -0,0 +1,104 @@
+name: tarball-test
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    # Do not use paths-ignore for required status checks
+    # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+  merge_group:
+  workflow_dispatch:
+    inputs:
+      notify-release-channel:
+        description: 'Also send failure notifications to SNAPSHOT_SLACK_WEBHOOK_URL (set by tarball-test-schedule).'
+        type: boolean
+        default: false
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  tarball:
+    runs-on: ubuntu-latest
+    # Cherry-pick to maintenance branches by changing only env.BRANCH below;
+    # archname / branch-label / Materialize all derive from it.
+    env:
+      BRANCH: master
+    outputs:
+      branch: ${{ env.BRANCH }}
+      skip: ${{ steps.skipping.outputs.skip }}
+    steps:
+      - id: skipping
+        run: echo 'skip=true' >> $GITHUB_OUTPUT
+        if: >-
+          ${{(false
+          || contains(github.event.head_commit.message, '[DOC]')
+          || contains(github.event.pull_request.title, '[DOC]')
+          || contains(github.event.pull_request.labels.*.name, 'Documentation')
+          || (github.event.pull_request.user.login == 'dependabot[bot]')
+          )}}
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          fetch-depth: 1 # actions/checkout fetches all heads/tags unless > 0
+          persist-credentials: false
+      # tool/make-snapshot derives the branch name from HEAD and looks up
+      # the upstream during ChangeLog generation. Detached checkouts
+      # (pull_request, merge_group) lack a local branch with tracking, so
+      # pin one to HEAD and connect it to the matching origin ref.
+      - name: Materialize local branch
+        run: |
+          git fetch --no-tags --depth=1 origin "+refs/heads/$BASE:refs/remotes/origin/$BASE"
+          git checkout -B "$BRANCH" HEAD
+          git branch --set-upstream-to="origin/$BASE" "$BRANCH"
+        env:
+          BASE: ${{ github.base_ref || env.BRANCH }}
+      - uses: ./.github/actions/make-snapshot
+        with:
+          archname: snapshot-${{ env.BRANCH }}
+          srcdir: '.'
+
+  ubuntu:
+    needs: tarball
+    if: ${{ ! needs.tarball.outputs.skip }}
+    uses: ./.github/workflows/tarball-ubuntu.yml
+    with:
+      archname: snapshot-${{ needs.tarball.outputs.branch }}
+      notify-release-channel: ${{ github.event_name == 'workflow_dispatch' && inputs.notify-release-channel || false }}
+    secrets:
+      SIMPLER_ALERTS_URL: ${{ secrets.SIMPLER_ALERTS_URL }}
+      SNAPSHOT_SLACK_WEBHOOK_URL: ${{ secrets.SNAPSHOT_SLACK_WEBHOOK_URL }}
+
+  macos:
+    needs: tarball
+    if: ${{ ! needs.tarball.outputs.skip }}
+    uses: ./.github/workflows/tarball-macos.yml
+    with:
+      archname: snapshot-${{ needs.tarball.outputs.branch }}
+      notify-release-channel: ${{ github.event_name == 'workflow_dispatch' && inputs.notify-release-channel || false }}
+    secrets:
+      SIMPLER_ALERTS_URL: ${{ secrets.SIMPLER_ALERTS_URL }}
+      SNAPSHOT_SLACK_WEBHOOK_URL: ${{ secrets.SNAPSHOT_SLACK_WEBHOOK_URL }}
+
+  windows:
+    needs: tarball
+    if: ${{ ! needs.tarball.outputs.skip }}
+    uses: ./.github/workflows/tarball-windows.yml
+    with:
+      archname: snapshot-${{ needs.tarball.outputs.branch }}
+      notify-release-channel: ${{ github.event_name == 'workflow_dispatch' && inputs.notify-release-channel || false }}
+    secrets:
+      SIMPLER_ALERTS_URL: ${{ secrets.SIMPLER_ALERTS_URL }}
+      SNAPSHOT_SLACK_WEBHOOK_URL: ${{ secrets.SNAPSHOT_SLACK_WEBHOOK_URL }}
+
+  non_development:
+    needs: tarball
+    uses: ./.github/workflows/tarball-non-development.yml
diff --git a/.github/workflows/tarball-ubuntu.yml b/.github/workflows/tarball-ubuntu.yml
new file mode 100644
index 0000000000..0482db3c7f
--- /dev/null
+++ b/.github/workflows/tarball-ubuntu.yml
@@ -0,0 +1,151 @@
+name: tarball-ubuntu (reusable)
+
+on:
+  workflow_call:
+    inputs:
+      archname:
+        description: 'archname (e.g. snapshot-master, snapshot-ruby_3_3)'
+        required: true
+        type: string
+      notify-release-channel:
+        description: 'Also send failure notifications to SNAPSHOT_SLACK_WEBHOOK_URL (schedule/release builds).'
+        required: false
+        type: boolean
+        default: false
+    secrets:
+      SIMPLER_ALERTS_URL:
+        required: false
+      SNAPSHOT_SLACK_WEBHOOK_URL:
+        required: false
+
+permissions:
+  contents: read
+
+jobs:
+  ubuntu:
+    strategy:
+      matrix:
+        test_task: [check, test-bundler-parallel, test-bundled-gems]
+        os: [ubuntu-24.04, ubuntu-22.04]
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
+    env:
+      ARCHNAME: ${{ inputs.archname }}
+    steps:
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: Packages
+          path: pkg
+      - name: Extract
+        run: tar xf pkg/*.tar.xz
+      - name: Install libraries
+        run: |
+          set -x
+          sudo apt-get update -q
+          sudo apt-get install --no-install-recommends -q -y build-essential libssl-dev libyaml-dev zlib1g-dev libffi-dev libgmp-dev bison- autoconf-
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.2'
+        # test-bundled-gems requires executable host ruby
+        if: matrix.test_task == 'test-bundled-gems'
+      - name: Fixed world writable dirs
+        run: |
+          mkdir -p $HOME/.local/share
+          mkdir -p $HOME/.cache/gem/specs
+          mkdir -p $HOME/.bundle/cache
+          mkdir -p $HOME/.ssh
+          chmod a-w $HOME/.bundle
+          # chmod a-w $HOME
+          # allow to write $HOME and check stats of HOME around tests (see below)
+          chmod -v a-w $HOME/.config
+          sudo chmod -R a-w /usr/share
+          sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v a-w $d; done' || :
+      - name: Set ENV
+        run: |
+          echo "JOBS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
+      - name: configure
+        run: cd "$ARCHNAME/" && ./configure
+      - name: make
+        run: cd "$ARCHNAME/" && make $JOBS
+      - name: Save stats of HOME
+        run: |
+          set -euxo pipefail
+          cat >"$ARCHNAME/save-stats.rb" <<'EOF'
+          require 'pathname'
+          require 'digest'
+          out = []
+          [
+            Dir.home,
+          ].each do |dir|
+            Dir.each_child(dir) do |name|
+              pn = File.join(dir, name)
+              st = File.stat(pn)
+              if st.file?
+                content = Digest::SHA1.file(pn).hexdigest
+              elsif st.directory? && st.nlink <= 10
+                content = Dir.children(pn).sort
+              end
+              out << [pn, "%o"%st.mode, st.nlink, st.uid, st.gid, st.size, content].to_s
+            rescue
+              out << [pn, $!.inspect].to_s
+            end
+          end
+          File.open(ARGV.shift, "w") do |io|
+            io.puts out.sort
+          end
+          EOF
+          make -C "$ARCHNAME" TESTRUN_SCRIPT=save-stats.rb RUNOPT=/tmp/stat-before-tests.txt runruby
+      - name: Tests
+        run: cd "$ARCHNAME/" && make $JOBS -s ${{ matrix.test_task }}
+        env:
+          RUBY_TESTOPTS: "-q --tty=no"
+      # test_sync_default_gems triggers gpg, whose agent processes leave
+      # $HOME/.gnupg around even when GNUPGHOME points elsewhere.
+      - name: Forcibly remove ~/.gnupg
+        run: rm -rf $HOME/.gnupg
+      - name: Diff stats of HOME
+        run: |
+          make -C "$ARCHNAME" TESTRUN_SCRIPT=save-stats.rb RUNOPT=/tmp/stat-after-tests.txt runruby
+          rm -f "$ARCHNAME/save-stats.rb"
+          diff -u /tmp/stat-before-tests.txt /tmp/stat-after-tests.txt
+      # leaked-globals since 2.7
+      - name: Leaked Globals
+        run: cd "$ARCHNAME/" && make -s leaked-globals
+        if: matrix.test_task == 'check'
+      - name: make install without root privilege
+        run: cd "$ARCHNAME/" && make $JOBS install DESTDIR="/tmp/destdir"
+        if: matrix.test_task == 'check'
+      - name: make install
+        run: cd "$ARCHNAME/" && sudo make $JOBS install
+        if: matrix.test_task == 'check'
+      - name: Verify installed binaries
+        run: |
+          /usr/local/bin/ruby -v
+          /usr/local/bin/gem -v
+          /usr/local/bin/bundle -v
+        if: matrix.test_task == 'check'
+      - name: Show .local
+        run: find $HOME/.local -ls
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout: .github/actions/slack
+          sparse-checkout-cone-mode: false
+          persist-credentials: false
+        if: ${{ failure() }}
+      - uses: ./.github/actions/slack
+        with:
+          label: "${{ matrix.os }} / ${{ matrix.test_task }}"
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+      - uses: ruby/action-slack@d260b61aa817726d5bedd22dd6cc305787fa4cdd # v4.0.0
+        with:
+          payload: |
+            {
+              "attachments": [{
+                "text": "${{ job.status }}: ${{ matrix.os }} / ${{ matrix.test_task }} <https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}|${{ inputs.archname }}>",
+                "color": "danger"
+              }]
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SNAPSHOT_SLACK_WEBHOOK_URL }}
+        if: failure() && inputs.notify-release-channel
diff --git a/.github/workflows/tarball-windows.yml b/.github/workflows/tarball-windows.yml
new file mode 100644
index 0000000000..a66cdf729d
--- /dev/null
+++ b/.github/workflows/tarball-windows.yml
@@ -0,0 +1,163 @@
+name: tarball-windows (reusable)
+
+on:
+  workflow_call:
+    inputs:
+      archname:
+        description: 'archname (e.g. snapshot-master)'
+        required: true
+        type: string
+      notify-release-channel:
+        description: 'Also send failure notifications to SNAPSHOT_SLACK_WEBHOOK_URL (schedule/release builds).'
+        required: false
+        type: boolean
+        default: false
+    secrets:
+      SIMPLER_ALERTS_URL:
+        required: false
+      SNAPSHOT_SLACK_WEBHOOK_URL:
+        required: false
+
+permissions:
+  contents: read
+
+jobs:
+  windows:
+    strategy:
+      matrix:
+        include:
+          - os: '2022'
+            test_task: check
+          - os: '2025-vs2026'
+            test_task: check
+      fail-fast: false
+    runs-on: windows-${{ matrix.os }}
+    defaults:
+      run:
+        shell: cmd
+        working-directory: build
+    name: Windows ${{ matrix.os }} (${{ matrix.test_task }})
+    env:
+      GITPULLOPTIONS: --no-tags origin ${{github.ref}}
+      PATCH: C:\msys64\usr\bin\patch.exe
+      OS_VER: windows-${{ matrix.os }}
+      # see https://github.com/ruby/ruby/commit/9ff4399decef0036897d3cfb9ac2c710dea913ca
+      OPENSSL_MODULES: C:\vcpkg\installed\x64-windows\bin
+    steps:
+      - run: md build
+        working-directory:
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.2'
+          bundler: none
+          windows-toolchain: none
+
+      - uses: msys2/setup-msys2@e9898307ac31d1a803454791be09ab9973336e1c # v2.31.1
+        id: setup-msys2
+        with:
+          update: true
+          install: >-
+            patch
+      - name: patch path
+        shell: msys2 {0}
+        run: echo PATCH=$(cygpath -wa $(command -v patch)) >> $GITHUB_ENV
+        if: ${{ steps.setup-msys2.outcome == 'success' }}
+      - uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        with:
+          path: C:\vcpkg\installed
+          key: ${{ runner.os }}-vcpkg-installed-${{ env.OS_VER }}-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-vcpkg-installed-${{ env.OS_VER }}-
+            ${{ runner.os }}-vcpkg-installed-
+      - name: Install libraries with vcpkg
+        run: |
+          vcpkg --triplet x64-windows install gmp libffi libyaml openssl zlib
+
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: Packages
+          path: pkg
+      - name: Extract
+        run: 7z x pkg/*.zip
+        working-directory:
+
+      - uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        with:
+          path: snapshot-*/.downloaded-cache
+          key: downloaded-cache
+
+      - name: setup env
+        # %TEMP% is inconsistent with %TMP% and test-all expects they are consistent.
+        # https://github.com/actions/virtual-environments/issues/712#issuecomment-613004302
+        env:
+          ARCHNAME: ${{ inputs.archname }}
+        run: |
+          set > old.env
+          call ..\%ARCHNAME%\win32\vssetup.cmd
+          set TMP=%USERPROFILE%\AppData\Local\Temp
+          set TEMP=%USERPROFILE%\AppData\Local\Temp
+          set /a TEST_JOBS=(15 * %NUMBER_OF_PROCESSORS% / 10) > nul
+          set > new.env
+
+      - name: update env
+        shell: pwsh
+        run: |
+          $old = (Get-Content old.env); $new = (Get-Content new.env)
+          del *.env
+          Compare-Object $old $new |
+            Where-Object { $_.SideIndicator -eq '=>' } |
+            Select-Object -ExpandProperty InputObject |
+            Add-Content -Path $env:GITHUB_ENV
+      - name: link libraries
+        run: |
+          for %%I in (C:\vcpkg\installed\x64-windows\bin\*.dll) do (
+            mklink %%~nxI %%I
+          )
+      - name: Configure
+        env:
+          ARCHNAME: ${{ inputs.archname }}
+        run: >-
+          ../%ARCHNAME%/win32/configure.bat --disable-install-doc
+          --with-opt-dir=C:/vcpkg/installed/x64-windows
+      - run: nmake incs
+      - run: nmake extract-extlibs
+      - run: nmake
+        env:
+          YACC: win_bison
+
+      - name: ruby -v
+        run: .\ruby -v
+
+      - run: nmake test
+        timeout-minutes: 5
+
+      - run: nmake ${{ matrix.test_task }}
+        env:
+          RUBY_TESTOPTS: -j${{env.TEST_JOBS}}
+        timeout-minutes: 70
+        continue-on-error: ${{ matrix.continue-on-error || false }}
+
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout: .github/actions/slack
+          sparse-checkout-cone-mode: false
+          persist-credentials: false
+        if: ${{ failure() }}
+      - uses: ./.github/actions/slack
+        with:
+          label: "${{ env.OS_VER }} / ${{ matrix.test_task }}"
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+      - uses: ruby/action-slack@d260b61aa817726d5bedd22dd6cc305787fa4cdd # v4.0.0
+        with:
+          payload: |
+            {
+              "attachments": [{
+                "text": "${{ job.status }}: ${{ env.OS_VER }} / ${{ matrix.test_task }} <https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}|${{ inputs.archname }}>",
+                "color": "danger"
+              }]
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SNAPSHOT_SLACK_WEBHOOK_URL }}
+        if: failure() && inputs.notify-release-channel
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
new file mode 100644
index 0000000000..c887ae3811
--- /dev/null
+++ b/.github/workflows/ubuntu.yml
@@ -0,0 +1,275 @@
+name: Ubuntu
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    # Do not use paths-ignore for required status checks
+    # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  make:
+    strategy:
+      matrix:
+        # We enumerate every job in matrix.include to save build time
+        include:
+          - test_task: check
+            configure: 'cppflags=-DVM_CHECK_MODE'
+          - test_task: check
+            arch: i686
+          - test_task: check
+            configure: '--disable-yjit'
+          - test_task: check
+            configure: '--enable-shared --enable-load-relative'
+          - test_task: test-bundler-parallel
+            timeout: 50
+          - test_task: test-bundled-gems
+          - test_task: check
+            os: ubuntu-24.04
+            extra_checks: [capi]
+          # ubuntu-24.04-arm jobs don't start on ruby/ruby as of 2025-10-29
+          #- test_task: check
+          #  os: ubuntu-24.04-arm
+      fail-fast: false
+
+    env: &make-env
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      RUBY_DEBUG: ci
+
+    runs-on: ${{ matrix.os || 'ubuntu-22.04' }}
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    steps: &make-steps
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/ubuntu
+        with:
+          arch: ${{ matrix.arch }}
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.1'
+          bundler: none
+        if: >-
+          ${{ !endsWith(matrix.os, 'arm')
+          && !endsWith(matrix.os, 'ppc64le') && !endsWith(matrix.os, 's390x') }}
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+          clean: true
+          dummy-files: ${{ matrix.test_task == 'check' }}
+          # Set fetch-depth: 10 so that Launchable can receive commits information.
+          fetch-depth: 10
+
+      - name: Run configure
+        env:
+          arch: ${{ matrix.arch }}
+          configure: ${{ matrix.configure }}
+        run: >-
+          $SETARCH ../src/configure -C --disable-install-doc ${configure:- --enable-debug-env cppflags=-DRUBY_DEBUG}
+          ${arch:+--target=$arch-$OSTYPE --host=$arch-$OSTYPE}
+
+      - run: $SETARCH make prepare-gems
+        if: ${{ matrix.test_task == 'test-bundled-gems' }}
+
+      - run: $SETARCH make
+
+      - run: $SETARCH make hello
+
+      - name: runirb
+        run: |
+          echo IRB::VERSION | $SETARCH make runirb RUNOPT="-- -f"
+
+      - name: Set test options for skipped tests
+        run: |
+          set -x
+          TESTS="$(echo "${{ matrix.skipped_tests }}" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|')"
+          echo "TESTS=${TESTS}" >> $GITHUB_ENV
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+
+      - name: Set up Launchable
+        id: launchable
+        uses: ./.github/actions/launchable/setup
+        with:
+          os: ${{ matrix.os || 'ubuntu-22.04' }}
+          test-opts: ${{ matrix.configure }}
+          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
+          builddir: build
+          srcdir: src
+        continue-on-error: true
+        timeout-minutes: 3
+
+      # Avoid possible test failures with the zlib applying the following patch
+      # on s390x CPU architecture.
+      # https://github.com/madler/zlib/pull/410
+      - name: Disable DFLTCC
+        run: echo "DFLTCC=0" >> $GITHUB_ENV
+        if: ${{ endsWith(matrix.os, 's390x') }}
+
+      - name: make ${{ matrix.test_task }}
+        run: |
+          test -n "${LAUNCHABLE_STDOUT}" && exec 1> >(tee "${LAUNCHABLE_STDOUT}")
+          test -n "${LAUNCHABLE_STDERR}" && exec 2> >(tee "${LAUNCHABLE_STDERR}")
+
+          $SETARCH make -s ${{ matrix.test_task }} \
+          ${TESTS:+TESTS="$TESTS"} \
+          ${{ !contains(matrix.test_task, 'bundle') && 'RUBYOPT=-w' || '' }}
+        timeout-minutes: ${{ matrix.timeout || 40 }}
+        env:
+          RUBY_TESTOPTS: '-q --tty=no'
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ''
+          PRECHECK_BUNDLED_GEMS: 'no'
+          LAUNCHABLE_STDOUT: ${{ steps.launchable.outputs.stdout_report_path }}
+          LAUNCHABLE_STDERR: ${{ steps.launchable.outputs.stderr_report_path }}
+
+      - name: make skipped tests
+        run: |
+          $SETARCH make -s test-all TESTS="${TESTS//-n!\//-n/}"
+        env:
+          GNUMAKEFLAGS: ''
+          RUBY_TESTOPTS: '-v --tty=no'
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+        continue-on-error: ${{ matrix.continue-on-skipped_tests || false }}
+
+      - name: test-pc
+        run: |
+          DESTDIR=${RUNNER_TEMP-${TMPDIR-/tmp}}/installed
+          $SETARCH make test-pc "DESTDIR=$DESTDIR"
+
+      - name: CAPI extensions
+        uses: ./.github/actions/capiext
+        with:
+          builddir: build
+          make: '$SETARCH make'
+        env:
+          RUBY_TESTOPTS: '-v --tty=no'
+        if: ${{ contains(matrix.extra_checks, 'capi') }}
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.test_task }} ${{ matrix.configure }}${{ matrix.arch }}${{ matrix.os }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+  make-ibm:
+    strategy:
+      matrix:
+        include:
+          - test_task: check
+            os: ubuntu-24.04-ppc64le
+          - test_task: check
+            os: ubuntu-24.04-s390x
+      fail-fast: false
+
+    env: *make-env
+
+    runs-on: ${{ matrix.os }}
+
+    if: >-
+      ${{github.repository == 'ruby/ruby'
+      && !(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    steps: *make-steps
+
+  # Separated from `make` job to avoid making it a required status check
+  ruby-bench:
+    strategy:
+      matrix:
+        include:
+          # Using the same setup as ZJIT jobs
+          - bench_opts: '--warmup=1 --bench=1 --excludes=shipit'
+
+    runs-on: ubuntu-24.04
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/ubuntu
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+
+      - name: Run configure
+        run: ../src/configure -C --disable-install-doc --prefix="$(pwd)/install"
+
+      - run: make install
+
+      - name: Checkout ruby-bench
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          repository: ruby/ruby-bench
+          persist-credentials: false
+          path: ruby-bench
+
+      # If you want to skip failing benchmark, consider using `--excludes`.
+      # e.g. `bench_opts: '--warmup=1 --bench=1 --excludes=railsbench,lobsters'`
+      - name: Run ruby-bench
+        run: ruby run_benchmarks.rb -e "ruby::../build/install/bin/ruby" ${{ matrix.bench_opts }}
+        working-directory: ruby-bench
+        env:
+          BUNDLER_VERSION: 0
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ruby-bench ${{ matrix.bench_opts }} ${{ matrix.ruby_opts }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+  result:
+    if: ${{ always() }}
+    name: ${{ github.workflow }} result
+    runs-on: ubuntu-latest
+    needs: [make]
+    steps:
+      - run: exit 1
+        working-directory:
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/wasm.yml b/.github/workflows/wasm.yml
new file mode 100644
index 0000000000..f0263de5ef
--- /dev/null
+++ b/.github/workflows/wasm.yml
@@ -0,0 +1,195 @@
+name: WebAssembly
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions: # added using https://github.com/step-security/secure-workflows
+  contents: read
+
+jobs:
+  make:
+    strategy:
+      matrix:
+        entry:
+#         # wasmtime can't compile non-optimized Asyncified binary due to locals explosion
+#         - { name: O0-debuginfo, optflags: '-O0', debugflags: '-g', wasmoptflags: '-O1' }
+#         - { name: O1,           optflags: '-O1', debugflags: ''  , wasmoptflags: '-O1' }
+          - { name: O2, optflags: '-O2', debugflags: '', wasmoptflags: '-O2' }
+#         - { name: O3,           optflags: '-O3', debugflags: ''  , wasmoptflags: '-O3' }
+#         # -O4 is equivalent to -O3 in clang, but it's different in wasm-opt
+#         - { name: O4,           optflags: '-O3', debugflags: ''  , wasmoptflags: '-O4' }
+#         - { name: Oz,           optflags: '-Oz', debugflags: ''  , wasmoptflags: '-Oz' }
+      fail-fast: false
+
+    env:
+      RUBY_TESTOPTS: '-q --tty=no'
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      WASI_SDK_VERSION_MAJOR: 25
+      WASI_SDK_VERSION_MINOR: 0
+      BINARYEN_VERSION: 113
+      WASMTIME_VERSION: v15.0.0
+
+    runs-on: ubuntu-22.04
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.1'
+          bundler: none
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+
+      - name: Install libraries
+        run: |
+          set -ex
+          sudo apt-get update -q || :
+          sudo apt-get install --no-install-recommends -q -y ruby make autoconf git wget
+
+          wasi_sdk_deb="wasi-sdk-${WASI_SDK_VERSION_MAJOR}.${WASI_SDK_VERSION_MINOR}-x86_64-linux.deb"
+          wget "https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-${WASI_SDK_VERSION_MAJOR}/${wasi_sdk_deb}"
+          sudo dpkg -i "$wasi_sdk_deb"
+          rm -f "$wasi_sdk_deb"
+
+          mkdir build-sdk
+          pushd build-sdk
+
+          wasmtime_url="https://github.com/bytecodealliance/wasmtime/releases/download/${WASMTIME_VERSION}/wasmtime-${WASMTIME_VERSION}-x86_64-linux.tar.xz"
+          wget -O - "$wasmtime_url" | tar xJf -
+          sudo ln -fs "$PWD/wasmtime-${WASMTIME_VERSION}-x86_64-linux/wasmtime" /usr/local/bin/wasmtime
+
+          binaryen_tarball="binaryen-version_${BINARYEN_VERSION}-x86_64-linux.tar.gz"
+          binaryen_url="https://github.com/WebAssembly/binaryen/releases/download/version_${BINARYEN_VERSION}/${binaryen_tarball}"
+          wget -O - "$binaryen_url" | tar xfz -
+          sudo ln -fs "$PWD/binaryen-version_${BINARYEN_VERSION}/bin/wasm-opt" /usr/local/bin/wasm-opt
+        working-directory: src
+
+      - name: Set ENV
+        run: |
+          echo "WASI_SDK_PATH=/opt/wasi-sdk" >> $GITHUB_ENV
+
+      - uses: ./.github/actions/setup/baseruby
+        id: baseruby
+        with:
+          srcdir: src
+
+      - name: Download config.guess with wasi version
+        run: |
+          rm tool/config.guess tool/config.sub
+          ruby tool/downloader.rb -d tool -e gnu config.guess config.sub
+        working-directory: src
+
+      - name: Run configure
+        run: >-
+          ../src/configure
+          --host wasm32-unknown-wasi
+          --with-baseruby="${{ steps.baseruby.outputs.ruby }}"
+          --with-dump-ast="${{ steps.baseruby.outputs.dump_ast }}"
+          --with-static-linked-ext
+          --with-ext=${EXTS// /,}
+          LDFLAGS="
+          -Xlinker --stack-first
+          -Xlinker -z -Xlinker stack-size=16777216
+          "
+          optflags="${{ matrix.entry.optflags }}"
+          debugflags="${{ matrix.entry.debugflags }}"
+          wasmoptflags="${{ matrix.entry.wasmoptflags }} ${{ matrix.entry.debugflags }}"
+        env:
+          EXTS:
+            cgi/escape
+            continuation
+            coverage
+            date
+            digest
+            digest/*
+            erb/escape
+            etc
+            fcntl
+            json
+            json/*
+            objspace
+            rbconfig/sizeof
+            ripper
+            stringio
+            strscan
+
+      # miniruby may not be built when cross-compling
+      - run: make mini ruby
+
+      - run: make install DESTDIR=$PWD/../install
+      - run: tar cfz ../install.tar.gz -C ../install .
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: ruby-wasm-install
+          path: ${{ github.workspace }}/install.tar.gz
+      - name: Show Playground URL to try the build
+        run: |
+          echo "Try on Playground: https://ruby.github.io/play-ruby?run=$GITHUB_RUN_ID" >> $GITHUB_STEP_SUMMARY
+
+      - name: Run basictest
+        run: wasmtime run ./../build/miniruby --mapdir /::./ -- basictest/test.rb
+        working-directory: src
+
+      - name: Run bootstraptest (no thread)
+        run: |
+          NO_THREAD_TESTS="$(grep -L Thread -R ./bootstraptest | awk -F/ '{ print $NF }' | uniq | sed -n 's/test_\(.*\).rb/\1/p' | paste -s -d, -)"
+          ruby ./bootstraptest/runner.rb --ruby="$(which wasmtime) run $PWD/../build/ruby --mapdir /::./ -- " --verbose "--sets=$NO_THREAD_TESTS"
+        working-directory: src
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.entry.name }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+      # Workaround for https://github.com/orgs/community/discussions/25220
+      - name: Save Pull Request number
+        if: ${{ github.event_name == 'pull_request' }}
+        run: echo "${{ github.event.pull_request.number }}" >> ${{ github.workspace }}/github-pr-info.txt
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        if: ${{ github.event_name == 'pull_request' }}
+        with:
+          name: github-pr-info
+          path: ${{ github.workspace }}/github-pr-info.txt
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
new file mode 100644
index 0000000000..03e75ad445
--- /dev/null
+++ b/.github/workflows/windows.yml
@@ -0,0 +1,217 @@
+name: Windows
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    # Do not use paths-ignore for required status checks
+    # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  make:
+    strategy:
+      matrix:
+        include:
+          - os: 2022
+            test_task: check
+          - os: 2022
+            test_task: test-bundled-gems
+          - os: 2025-vs2026
+            test_task: check
+          - os: 2025-vs2026
+            test_task: test-bundled-gems
+          - os: 11-arm
+            test_task: 'btest test-basic test-tool' # check and test-spec are broken yet.
+            target: arm64
+      fail-fast: false
+
+    runs-on: windows-${{ matrix.os }}
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/vcpkg'))
+      )}}
+
+    name: Windows ${{ matrix.os }} (${{ matrix.test_task }})
+
+    env:
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      VCPKG_DEFAULT_TRIPLET: ${{ matrix.target || 'x64' }}-windows
+
+    steps:
+      - run: md build
+        working-directory:
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          # windows-11-arm has only 3.4.1, 3.4.2, 3.4.3, head
+          ruby-version: ${{ !endsWith(matrix.os, 'arm') && '3.1' || '3.4' }}
+          bundler: none
+          windows-toolchain: none
+
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          make-command: nmake
+          clean: true
+
+      - name: Install tools with scoop
+        run: |
+          if ((vcpkg.exe help install) -match "manifest") { exit }
+          Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
+          iwr -useb get.scoop.sh | iex
+          Join-Path (Resolve-Path ~).Path "scoop\shims" >> $Env:GITHUB_PATH
+          scoop install vcpkg
+        shell: pwsh
+
+      - name: Restore vcpkg artifact
+        id: restore-vcpkg
+        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        with:
+          path: src\vcpkg_installed
+          key: windows-${{ matrix.os }}-vcpkg-${{ hashFiles('src/vcpkg.json') }}
+
+      - name: Install libraries with vcpkg
+        id: build-vcpkg
+        run: |
+          git -C "%VCPKG_INSTALLATION_ROOT%" pull --quiet
+          vcpkg install
+        working-directory: src
+        if: ${{ ! steps.restore-vcpkg.outputs.cache-hit }}
+
+      - name: Save vcpkg artifact
+        uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        with:
+          path: src\vcpkg_installed
+          key: windows-${{ matrix.os }}-vcpkg-${{ hashFiles('src/vcpkg.json') }}
+        if: >-
+          steps.build-vcpkg.outcome == 'success' &&
+          (  github.ref_name == 'master'
+          || startsWith(github.ref_name, 'ruby_')
+          || ( github.event.pull_request.user.login == 'dependabot[bot]'
+          &&   startsWith(github.head_ref || github.ref_name, 'dependabot/vcpkg'))
+          )
+
+      - name: setup env
+        # Available Ruby versions: https://github.com/actions/runner-images/blob/main/images/windows/Windows2019-Readme.md#ruby
+        # %TEMP% is inconsistent with %TMP% and test-all expects they are consistent.
+        # https://github.com/actions/virtual-environments/issues/712#issuecomment-613004302
+        run: |
+          set > old.env
+          call ..\src\win32\vssetup.cmd ^
+            -arch=${{ matrix.target || 'amd64' }} ^
+            ${{ matrix.vcvars && '-vcvars_ver=' || '' }}${{ matrix.vcvars }}
+          nmake -f nul
+          set TMP=%RUNNER_TEMP%
+          set TEMP=%RUNNER_TEMP%
+          set MAKEFLAGS=l
+          set /a TEST_JOBS=(15 * %NUMBER_OF_PROCESSORS% / 10) > nul
+          set RUBY_OPT_DIR=%GITHUB_WORKSPACE:\=/%/src/vcpkg_installed/%VCPKG_DEFAULT_TRIPLET%
+          set > new.env
+
+      - name: update env
+        shell: pwsh
+        run: |
+          $old = (Get-Content old.env); $new = (Get-Content new.env)
+          del *.env
+          Compare-Object $old $new |
+            Where-Object { $_.SideIndicator -eq '=>' } |
+            Select-Object -ExpandProperty InputObject |
+            Add-Content -Path $env:GITHUB_ENV
+
+      - name: baseruby version
+        run: ruby -v
+
+      - name: compiler version
+        run: cl
+
+      - name: volume info
+        run: Get-Volume
+        shell: pwsh
+
+      # TODO: We should use `../src` instead of `D:/a/ruby/ruby/src`
+      - name: Configure
+        run: >-
+          ../src/win32/configure.bat --disable-install-doc
+          --with-opt-dir=%RUBY_OPT_DIR%
+          --with-gmp
+
+      - run: nmake prepare-vcpkg
+
+      - run: nmake incs
+
+      - run: nmake extract-extlibs
+
+      # On all other platforms, test-spec depending on extract-gems (in common.mk) is enough.
+      # But not for this Visual Studio workflow. So here we extract gems before building.
+      - run: nmake extract-gems
+
+      # windows-11-arm runner cannot run `ruby tool/file2lastrev.rb --revision.h --output=revision.h`
+      - name: make revision.h
+        run: |
+          win32\lastrev.bat | win32\ifchange.bat --timestamp=.revision.time revision.h -
+          type revision.h
+        working-directory: src
+
+      - run: nmake
+
+      - name: Set up Launchable
+        uses: ./.github/actions/launchable/setup
+        with:
+          os: windows-${{ matrix.os }}
+          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
+          builddir: build
+          srcdir: src
+          test-task: ${{ matrix.test_task || 'check' }}
+        continue-on-error: true
+        if: ${{ matrix.test_task != 'test-bundled-gems' }}
+        timeout-minutes: 3
+
+      - run: nmake ${{ matrix.test_task || 'check' }}
+        env:
+          RUBY_TESTOPTS: -j${{ env.TEST_JOBS || 4 }}
+        timeout-minutes: 70
+
+      - uses: ./.github/actions/slack
+        with:
+          label: Windows ${{ matrix.os }} / ${{ matrix.test_task || 'check' }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+  result:
+    if: ${{ always() }}
+    name: ${{ github.workflow }} result
+    runs-on: windows-2025-vs2026
+    needs: [make]
+    steps:
+      - run: exit 1
+        working-directory:
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+
+defaults:
+  run:
+    working-directory: build
+    shell: cmd
diff --git a/.github/workflows/wsl.yml b/.github/workflows/wsl.yml
new file mode 100644
index 0000000000..470b68fe66
--- /dev/null
+++ b/.github/workflows/wsl.yml
@@ -0,0 +1,73 @@
+name: Ubuntu on WSL
+
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    # Do not use paths-ignore for required status checks
+    # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+  merge_group:
+
+permissions:
+  contents: read
+
+jobs:
+  wsl:
+    runs-on: windows-2025-vs2026
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]')
+      )}}
+
+    steps:
+      - name: Install or update WSL
+        uses: Ubuntu/WSL/.github/actions/wsl-install@main
+        with:
+          distro: Ubuntu-24.04
+
+      - name: Install dependencies
+        uses: Ubuntu/WSL/.github/actions/wsl-bash@main
+        with:
+         distro: Ubuntu-24.04
+         working-dir: /tmp/github/
+         exec: |
+            DEBIAN_FRONTEND=noninteractive sudo apt update
+            DEBIAN_FRONTEND=noninteractive sudo apt install -y ruby build-essential autoconf libssl-dev libyaml-dev zlib1g-dev libgmp-dev libffi-dev
+
+      - name: Check out the repository
+        uses: Ubuntu/WSL/.github/actions/wsl-checkout@main
+        with:
+          distro: Ubuntu-24.04
+          working-dir: /tmp/github/
+          submodules: true
+
+      - name: Build
+        uses: Ubuntu/WSL/.github/actions/wsl-bash@main
+        with:
+         distro: Ubuntu-24.04
+         working-dir: /tmp/github/
+         exec: |
+            ./autogen.sh
+            ./configure --disable-install-doc
+            make ruby -j4
+            make extract-gems
+            make -j4
+
+      - name: Test
+        uses: Ubuntu/WSL/.github/actions/wsl-bash@main
+        with:
+         distro: Ubuntu-24.04
+         working-dir: /tmp/github/
+         exec: |
+            ./ruby -v
+            # make check TESTS="-j4" MSPECOPT="-j"
diff --git a/.github/workflows/yjit-macos.yml b/.github/workflows/yjit-macos.yml
new file mode 100644
index 0000000000..e11de6bc51
--- /dev/null
+++ b/.github/workflows/yjit-macos.yml
@@ -0,0 +1,201 @@
+name: YJIT macOS
+on:
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+    # Do not use paths-ignore for required status checks
+    # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  cargo:
+    name: cargo test
+
+    runs-on: macos-26
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/cargo'))
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - run: RUST_BACKTRACE=1 cargo test
+        working-directory: yjit
+
+      # Also compile and test with all features enabled
+      - run: RUST_BACKTRACE=1 cargo test --all-features
+        working-directory: yjit
+
+      # Check that we can build in release mode too
+      - run: cargo build --release
+        working-directory: yjit
+
+  make:
+    strategy:
+      matrix:
+        include:
+          - test_task: 'check'
+            configure: '--enable-yjit'
+            yjit_opts: '--yjit'
+          - test_task: 'check'
+            configure: '--enable-yjit=dev'
+            yjit_opts: '--yjit-call-threshold=1 --yjit-verify-ctx --yjit-code-gc'
+            specopts: '-T --yjit-call-threshold=1 -T --yjit-verify-ctx -T --yjit-code-gc'
+      fail-fast: false
+
+    env:
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      RUN_OPTS: ${{ matrix.yjit_opts }}
+      SPECOPTS: ${{ matrix.specopts }}
+
+    runs-on: macos-26
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/cargo'))
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - name: Install libraries
+        uses: ./.github/actions/setup/macos
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+          dummy-files: ${{ matrix.test_task == 'check' }}
+          # Set fetch-depth: 10 so that Launchable can receive commits information.
+          fetch-depth: 10
+
+      - name: Run configure
+        run: ../src/configure -C --disable-install-doc ${{ matrix.configure }}
+
+      - run: make prepare-gems
+        if: ${{ matrix.test_task == 'test-bundled-gems' }}
+
+      - run: make
+
+      - name: Verify that --yjit-dump-disasm works
+        run: |
+          ./miniruby --yjit-call-threshold=1 --yjit-dump-disasm -e0 | \
+          wc -l | \
+          ruby -ne 'raise "Disassembly seems broken in dev build (output has too few lines)" unless $_.to_i > 10'
+        if: ${{ contains(matrix.configure, 'jit=dev') }}
+
+      - name: Set ENV for YJIT
+        run: |
+          echo "RUBY_YJIT_ENABLE=1" >> $GITHUB_ENV
+          echo "RUBY_CRASH_REPORT=$(pwd)/rb_crash_%p.txt" >> $GITHUB_ENV
+
+      - name: Set test options for skipped tests
+        run: |
+          set -x
+          TESTS="$(echo "${{ matrix.skipped_tests }}" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|')"
+          echo "TESTS=${TESTS}" >> $GITHUB_ENV
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+
+      - name: Set up Launchable
+        id: launchable
+        uses: ./.github/actions/launchable/setup
+        with:
+          os: macos-26
+          test-opts: ${{ matrix.configure }}
+          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
+          builddir: build
+          srcdir: src
+          is-yjit: true
+        continue-on-error: true
+        timeout-minutes: 3
+
+      - name: make ${{ matrix.test_task }}
+        run: |
+          test -n "${LAUNCHABLE_STDOUT}" && exec 1> >(tee "${LAUNCHABLE_STDOUT}")
+          test -n "${LAUNCHABLE_STDERR}" && exec 2> >(tee "${LAUNCHABLE_STDERR}")
+
+          set -x
+          make -s ${{ matrix.test_task }} ${TESTS:+TESTS="$TESTS"} \
+            RUN_OPTS="$RUN_OPTS" \
+            SPECOPTS="$SPECOPTS"
+        timeout-minutes: 60
+        env:
+          RUBY_TESTOPTS: '-q --tty=no'
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ''
+          SYNTAX_SUGGEST_TIMEOUT: '5'
+          PRECHECK_BUNDLED_GEMS: 'no'
+          LAUNCHABLE_STDOUT: ${{ steps.launchable.outputs.stdout_report_path }}
+          LAUNCHABLE_STDERR: ${{ steps.launchable.outputs.stderr_report_path }}
+        continue-on-error: ${{ matrix.continue-on-test_task || false }}
+
+      - name: make skipped tests
+        run: |
+          make -s test-all TESTS="${TESTS//-n!\//-n/}"
+        env:
+          GNUMAKEFLAGS: ''
+          RUBY_TESTOPTS: '-v --tty=no'
+          PRECHECK_BUNDLED_GEMS: 'no'
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+        continue-on-error: ${{ matrix.continue-on-skipped_tests || false }}
+
+      - name: Dump crash logs
+        if: ${{ failure() }}
+        continue-on-error: true
+        run: |
+          tail --verbose --lines=+1 rb_crash_*.txt
+          exit 1
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.test_task }} ${{ matrix.configure }} ${{ matrix.yjit_opts }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+  result:
+    if: ${{ always() }}
+    name: ${{ github.workflow }} result
+    runs-on: ubuntu-latest
+    needs: [make]
+    steps:
+      - name: ${{ github.workflow }} jobs have failed
+        run: exit 1
+        working-directory:
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/yjit-ubuntu.yml b/.github/workflows/yjit-ubuntu.yml
new file mode 100644
index 0000000000..ab816940f4
--- /dev/null
+++ b/.github/workflows/yjit-ubuntu.yml
@@ -0,0 +1,245 @@
+name: YJIT Ubuntu
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    # Do not use paths-ignore for required status checks
+    # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  cargo:
+    name: cargo test
+
+    # GitHub Action's image seems to already contain a Rust 1.58.0.
+    runs-on: ubuntu-22.04
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/cargo'))
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      # For now we can't run cargo test --offline because it complains about the
+      # capstone dependency, even though the dependency is optional
+      #- run: cargo test --offline
+
+      - run: RUST_BACKTRACE=1 cargo test
+        working-directory: yjit
+
+      # Also compile and test with all features enabled
+      - run: RUST_BACKTRACE=1 cargo test --all-features
+        working-directory: yjit
+
+      # Check that we can build in release mode too
+      - run: cargo build --release
+        working-directory: yjit
+
+  lint:
+    name: cargo clippy
+
+    # GitHub Action's image seems to already contain a Rust 1.58.0.
+    runs-on: ubuntu-22.04
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/cargo'))
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      # Check that we don't have linting errors in release mode, too
+      - run: cargo clippy --all-targets --all-features
+        working-directory: yjit
+
+  make:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - test_task: 'yjit-bindgen'
+            hint: 'To fix: use patch in logs'
+            # Build with YJIT+ZJIT for output that works in the most number of configurations
+            configure: '--with-gcc=clang-14 --enable-yjit=dev --enable-zjit'
+            libclang_path: '/usr/lib/llvm-14/lib/libclang.so.1'
+
+          - test_task: 'check'
+            # YJIT should be automatically built in release mode on x86-64 Linux with rustc present
+            #configure: "--enable-yjit RUSTC='rustc +1.58.0'"
+            configure: "RUSTC='rustc +1.58.0'"
+            rust_version: '1.58.0'
+
+          - test_task: 'check'
+            configure: '--enable-yjit=dev'
+
+          - test_task: 'check'
+            configure: '--enable-yjit=dev'
+            yjit_opts: '--yjit-call-threshold=1 --yjit-verify-ctx --yjit-code-gc'
+            specopts: '-T --yjit-call-threshold=1 -T --yjit-verify-ctx -T --yjit-code-gc'
+
+          - test_task: 'test-bundled-gems'
+            configure: '--enable-yjit=dev'
+
+    env:
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      RUN_OPTS: ${{ matrix.yjit_opts }}
+      YJIT_BENCH_OPTS: ${{ matrix.yjit_bench_opts }}
+      SPECOPTS: ${{ matrix.specopts }}
+      RUBY_DEBUG: ci
+      RUST_BACKTRACE: 1
+
+    runs-on: ubuntu-22.04
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/cargo'))
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/ubuntu
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.1'
+          bundler: none
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+          dummy-files: ${{ matrix.test_task == 'check' }}
+          # Set fetch-depth: 10 so that Launchable can receive commits information.
+          fetch-depth: 10
+
+      - name: Install Rust
+        if: ${{ matrix.rust_version }}
+        run: rustup install ${{ matrix.rust_version }} --profile minimal
+
+      - name: Remove cargo
+        # Since this tests a `rustc` build for release, remove `cargo` to ensure
+        # that only `rustc` is used.
+        if: ${{ contains(matrix.configure, 'rustc') }}
+        run: sudo rm $(which -a cargo | uniq)
+
+      - name: Run configure
+        run: ../src/configure -C --disable-install-doc --prefix=$(pwd)/install ${{ matrix.configure }}
+
+      - run: make incs
+
+      - run: make prepare-gems
+        if: ${{ matrix.test_task == 'test-bundled-gems' }}
+
+      - run: make
+
+      - name: Verify that --yjit-dump-disasm works
+        run: |
+          ./miniruby --yjit-call-threshold=1 --yjit-dump-disasm -e0 | \
+          wc -l | \
+          ruby -ne 'raise "Disassembly seems broken in dev build (output has too few lines)" unless $_.to_i > 10'
+        if: ${{ contains(matrix.configure, 'jit=dev') }}
+
+      - name: Set ENV for YJIT
+        run: |
+          echo "RUBY_YJIT_ENABLE=1" >> $GITHUB_ENV
+          echo "RUBY_CRASH_REPORT=$(pwd)/rb_crash_%p.txt" >> $GITHUB_ENV
+
+      # Check that the binary was built with YJIT
+      - name: Check YJIT enabled
+        run: ./miniruby --yjit -v | grep "+YJIT"
+
+      - name: Set up Launchable
+        id: launchable
+        uses: ./.github/actions/launchable/setup
+        with:
+          os: ubuntu-22.04
+          test-opts: ${{ matrix.configure }}
+          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
+          builddir: build
+          srcdir: src
+          is-yjit: true
+        continue-on-error: true
+        timeout-minutes: 3
+
+      - name: make ${{ matrix.test_task }}
+        run: |
+          test -n "${LAUNCHABLE_STDOUT}" && exec 1> >(tee "${LAUNCHABLE_STDOUT}")
+          test -n "${LAUNCHABLE_STDERR}" && exec 2> >(tee "${LAUNCHABLE_STDERR}")
+
+          set -x
+          make -s ${{ matrix.test_task }} ${TESTS:+TESTS="$TESTS"} \
+            RUN_OPTS="$RUN_OPTS" MSPECOPT=--debug SPECOPTS="$SPECOPTS" \
+            YJIT_BENCH_OPTS="$YJIT_BENCH_OPTS" YJIT_BINDGEN_DIFF_OPTS="$YJIT_BINDGEN_DIFF_OPTS"
+        timeout-minutes: 90
+        env:
+          RUBY_TESTOPTS: '-q --tty=no'
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ''
+          PRECHECK_BUNDLED_GEMS: 'no'
+          SYNTAX_SUGGEST_TIMEOUT: '5'
+          YJIT_BINDGEN_DIFF_OPTS: '--exit-code'
+          LIBCLANG_PATH: ${{ matrix.libclang_path }}
+          LAUNCHABLE_STDOUT: ${{ steps.launchable.outputs.stdout_report_path }}
+          LAUNCHABLE_STDERR: ${{ steps.launchable.outputs.stderr_report_path }}
+        continue-on-error: ${{ matrix.continue-on-test_task || false }}
+
+      - name: Dump crash logs
+        if: ${{ failure() }}
+        continue-on-error: true
+        run: |
+          tail --verbose --lines=+1 rb_crash_*.txt
+          exit 1
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.test_task }} ${{ matrix.configure }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+  result:
+    if: ${{ always() }}
+    name: ${{ github.workflow }} result
+    runs-on: ubuntu-latest
+    needs: [make]
+    steps:
+      - run: exit 1
+        working-directory:
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/zjit-macos.yml b/.github/workflows/zjit-macos.yml
new file mode 100644
index 0000000000..707e50e36b
--- /dev/null
+++ b/.github/workflows/zjit-macos.yml
@@ -0,0 +1,239 @@
+name: ZJIT macOS
+on:
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+    # Do not use paths-ignore for required status checks
+    # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  make:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - test_task: 'check'
+            run_opts: '--zjit-call-threshold=1'
+            specopts: '-T --zjit-call-threshold=1'
+            configure: '--enable-zjit=dev'
+
+          - test_task: 'check'
+            run_opts: '--zjit-disable-hir-opt --zjit-call-threshold=1'
+            specopts: '-T --zjit-disable-hir-opt -T --zjit-call-threshold=1'
+            configure: '--enable-zjit=dev'
+
+          - test_task: 'zjit-check' # zjit-test + quick feedback of test_zjit.rb
+            configure: '--enable-yjit=dev --enable-zjit'
+            rust_version: "1.85.0"
+
+          - test_task: 'ruby'
+            hint: 'combo build test'
+            configure: '--enable-yjit --enable-zjit'
+
+    env:
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      RUN_OPTS: ${{ matrix.run_opts }}
+      SPECOPTS: ${{ matrix.specopts }}
+      TESTOPTS: ${{ matrix.testopts }}
+      RUST_BACKTRACE: 1
+      ZJIT_RB_BUG: 1
+
+    runs-on: macos-26
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/cargo'))
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - name: Install libraries
+        uses: ./.github/actions/setup/macos
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+          dummy-files: ${{ matrix.test_task == 'check' }}
+          # Set fetch-depth: 10 so that Launchable can receive commits information.
+          fetch-depth: 10
+
+      - name: Install Rust
+        if: ${{ matrix.rust_version }}
+        run: |
+          rustup install ${{ matrix.rust_version }} --profile minimal
+          rustup default ${{ matrix.rust_version }}
+
+      - uses: taiki-e/install-action@4bc351f7f2614e48088386e2a0ad917ca3a7e4ba # v2.81.5
+        with:
+          tool: nextest@0.9
+        if: ${{ matrix.test_task == 'zjit-check' }}
+
+      - name: Run configure
+        run: ../src/configure -C --disable-install-doc ${{ matrix.configure }}
+
+      - run: make
+
+      - name: Verify that --zjit-dump-disasm works
+        run: |
+          ./miniruby --zjit-call-threshold=1 --zjit-dump-disasm -e0 | \
+          wc -l | \
+          ruby -ne 'raise "Disassembly seems broken in dev build (output has too few lines)" unless $_.to_i > 10'
+        if: ${{ contains(matrix.configure, 'jit=dev') }}
+
+      - name: Set ENV for ZJIT
+        run: |
+          echo "RUBY_CRASH_REPORT=$(pwd)/rb_crash_%p.txt" >> $GITHUB_ENV
+
+      - name: Set up Launchable
+        id: launchable
+        uses: ./.github/actions/launchable/setup
+        with:
+          os: macos-26
+          test-opts: ${{ matrix.configure }}
+          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
+          builddir: build
+          srcdir: src
+          is-zjit: true
+        continue-on-error: true
+        timeout-minutes: 3
+
+      - name: make ${{ matrix.test_task }}
+        run: |
+          test -n "${LAUNCHABLE_STDOUT}" && exec 1> >(tee "${LAUNCHABLE_STDOUT}")
+          test -n "${LAUNCHABLE_STDERR}" && exec 2> >(tee "${LAUNCHABLE_STDERR}")
+
+          set -x
+          make -s ${{ matrix.test_task }} ${TESTS:+TESTS="$TESTS"} \
+            RUN_OPTS="$RUN_OPTS" \
+            SPECOPTS="$SPECOPTS" \
+            TESTOPTS="$TESTOPTS"
+        timeout-minutes: 60
+        env:
+          RUBY_TESTOPTS: '-q --tty=no'
+          EXCLUDES: '../src/test/.excludes-zjit'
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ''
+          SYNTAX_SUGGEST_TIMEOUT: '30'
+          PRECHECK_BUNDLED_GEMS: 'no'
+          LAUNCHABLE_STDOUT: ${{ steps.launchable.outputs.stdout_report_path }}
+          LAUNCHABLE_STDERR: ${{ steps.launchable.outputs.stderr_report_path }}
+        continue-on-error: ${{ matrix.continue-on-test_task || false }}
+
+      - name: Dump crash logs
+        if: ${{ failure() }}
+        continue-on-error: true
+        run: |
+          tail --verbose --lines=+1 rb_crash_*.txt
+          exit 1
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.test_task }} ${{ matrix.configure }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+  result:
+    if: ${{ always() }}
+    name: ${{ github.workflow }} result
+    runs-on: ubuntu-latest
+    needs: [make]
+    steps:
+      - run: exit 1
+        working-directory:
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+
+  # Separated from `make` job to avoid making it a required status check for now
+  ruby-bench:
+    strategy:
+      matrix:
+        include:
+          # Test --call-threshold=2 with 2 iterations in total
+          - ruby_opts: '--zjit-call-threshold=2'
+            bench_opts: '--warmup=1 --bench=1 --excludes=shipit'
+            configure: '--enable-zjit=dev_nodebug' # --enable-zjit=dev is too slow
+
+    runs-on: macos-26
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/cargo'))
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/macos
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+
+      - name: Run configure
+        run: ../src/configure -C --disable-install-doc --prefix="$(pwd)/install" ${{ matrix.configure }}
+
+      - run: make install
+
+      # setup/directories set MAKEFLAGS=-j4 for macOS, which randomly fails sqlite3.gem builds
+      - name: Unset MAKEFLAGS
+        run: echo "MAKEFLAGS=" >> "$GITHUB_ENV"
+
+      - name: Checkout ruby-bench
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+          repository: ruby/ruby-bench
+          path: ruby-bench
+
+      # If you want to skip failing benchmark, consider using `--excludes`.
+      # e.g. `bench_opts: '--warmup=1 --bench=1 --excludes=railsbench,lobsters'`
+      - name: Run ruby-bench
+        run: ruby run_benchmarks.rb -e "zjit::../build/install/bin/ruby ${{ matrix.ruby_opts }}" ${{ matrix.bench_opts }}
+        working-directory: ruby-bench
+        env:
+          BUNDLER_VERSION: 0
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ruby-bench ${{ matrix.bench_opts }} ${{ matrix.ruby_opts }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/zjit-ubuntu.yml b/.github/workflows/zjit-ubuntu.yml
new file mode 100644
index 0000000000..1c3e3f6531
--- /dev/null
+++ b/.github/workflows/zjit-ubuntu.yml
@@ -0,0 +1,293 @@
+name: ZJIT Ubuntu
+on:
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - 'doc/**'
+      - '**/man/*'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '.*.yml'
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+    # Do not use paths-ignore for required status checks
+    # https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
+  cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    name: cargo clippy
+
+    runs-on: ubuntu-22.04
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/cargo'))
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - run: cargo clippy --all-targets --all-features
+        working-directory: zjit
+
+  make:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - test_task: 'check'
+            run_opts: '--zjit-call-threshold=1'
+            specopts: '-T --zjit-call-threshold=1'
+            configure: '--enable-zjit=dev'
+
+          - test_task: 'check'
+            run_opts: '--zjit-disable-hir-opt --zjit-call-threshold=1'
+            specopts: '-T --zjit-disable-hir-opt -T --zjit-call-threshold=1'
+            configure: '--enable-zjit=dev'
+
+            # The optimizer benefits from at least 1 iteration of profiling. Also, many
+            # regression tests in bootstraptest/test_yjit.rb assume call-threshold=2.
+          - test_task: 'btest'
+            run_opts: '--zjit-call-threshold=2'
+            configure: '--enable-zjit=dev'
+
+          - test_task: 'zjit-check' # zjit-test + quick feedback of test_zjit.rb
+            configure: '--enable-yjit --enable-zjit=dev'
+            rust_version: '1.85.0'
+
+          - test_task: 'zjit-bindgen'
+            hint: 'To fix: use patch in logs'
+            # Build with YJIT+ZJIT for output that works in the most number of configurations
+            configure: '--enable-zjit=dev --enable-yjit --with-gcc=clang-16'
+            clang_path: '/usr/bin/clang-16'
+            runs-on: 'ubuntu-24.04' # for clang-16
+
+          - test_task: 'test-bundled-gems'
+            configure: '--enable-zjit=dev'
+            run_opts: '--zjit-call-threshold=1'
+
+    env:
+      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      RUN_OPTS: ${{ matrix.run_opts }}
+      YJIT_BENCH_OPTS: ${{ matrix.yjit_bench_opts }}
+      SPECOPTS: ${{ matrix.specopts }}
+      TESTOPTS: ${{ matrix.testopts }}
+      RUBY_DEBUG: ci
+      BUNDLE_JOBS: 8 # for yjit-bench
+      RUST_BACKTRACE: 1
+      ZJIT_RB_BUG: 1
+
+    runs-on: ${{ matrix.runs-on || 'ubuntu-22.04' }}
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/cargo'))
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/ubuntu
+
+      - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+        with:
+          ruby-version: '3.1'
+          bundler: none
+
+      - uses: taiki-e/install-action@4bc351f7f2614e48088386e2a0ad917ca3a7e4ba # v2.81.5
+        with:
+          tool: nextest@0.9
+        if: ${{ matrix.test_task == 'zjit-check' }}
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+          dummy-files: ${{ matrix.test_task == 'check' }}
+          # Set fetch-depth: 10 so that Launchable can receive commits information.
+          fetch-depth: 10
+
+      - name: Install Rust
+        if: ${{ matrix.rust_version }}
+        run: |
+          rustup install ${{ matrix.rust_version }} --profile minimal
+          rustup default ${{ matrix.rust_version }}
+
+      - name: Install rustfmt
+        if: ${{ matrix.test_task == 'zjit-bindgen' }}
+        run: rustup component add rustfmt
+
+      - name: Run configure
+        run: ../src/configure -C --disable-install-doc --prefix=$(pwd)/install ${{ matrix.configure }}
+
+      - run: make incs
+
+      - run: make prepare-gems
+        if: ${{ matrix.test_task == 'test-bundled-gems' }}
+
+      - run: make
+
+      - name: Verify that --zjit-dump-disasm works
+        run: |
+          ./miniruby --zjit-call-threshold=1 --zjit-dump-disasm -e0 | \
+          wc -l | \
+          ruby -ne 'raise "Disassembly seems broken in dev build (output has too few lines)" unless $_.to_i > 10'
+        if: ${{ contains(matrix.configure, 'jit=dev') }}
+
+      # Check that the binary was built with ZJIT
+      - name: Check ZJIT enabled
+        run: ./miniruby --zjit -v | grep "+ZJIT"
+        if: ${{ matrix.configure != '--disable-zjit' }}
+
+      - name: Set ENV for ZJIT
+        run: |
+          echo "RUBY_CRASH_REPORT=$(pwd)/rb_crash_%p.txt" >> $GITHUB_ENV
+
+      - name: Set up Launchable
+        id: launchable
+        uses: ./.github/actions/launchable/setup
+        with:
+          os: ${{ matrix.runs-on || 'ubuntu-22.04' }}
+          test-opts: ${{ matrix.configure }}
+          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
+          builddir: build
+          srcdir: src
+          is-zjit: true
+        continue-on-error: true
+        timeout-minutes: 3
+
+      - name: make ${{ matrix.test_task }}
+        run: |
+          test -n "${LAUNCHABLE_STDOUT}" && exec 1> >(tee "${LAUNCHABLE_STDOUT}")
+          test -n "${LAUNCHABLE_STDERR}" && exec 2> >(tee "${LAUNCHABLE_STDERR}")
+
+          set -x
+          make -s ${{ matrix.test_task }} ${TESTS:+TESTS="$TESTS"} \
+            RUN_OPTS="$RUN_OPTS" MSPECOPT=--debug SPECOPTS="$SPECOPTS" \
+            TESTOPTS="$TESTOPTS" \
+            ZJIT_BINDGEN_DIFF_OPTS="$ZJIT_BINDGEN_DIFF_OPTS"
+        timeout-minutes: 90
+        env:
+          RUBY_TESTOPTS: '-q --tty=no'
+          EXCLUDES: '../src/test/.excludes-zjit'
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ''
+          PRECHECK_BUNDLED_GEMS: 'no'
+          SYNTAX_SUGGEST_TIMEOUT: '30'
+          ZJIT_BINDGEN_DIFF_OPTS: '--exit-code'
+          CLANG_PATH: ${{ matrix.clang_path }}
+          LAUNCHABLE_STDOUT: ${{ steps.launchable.outputs.stdout_report_path }}
+          LAUNCHABLE_STDERR: ${{ steps.launchable.outputs.stderr_report_path }}
+        continue-on-error: ${{ matrix.continue-on-test_task || false }}
+
+      - name: Dump crash logs
+        if: ${{ failure() }}
+        continue-on-error: true
+        run: |
+          tail --verbose --lines=+1 rb_crash_*.txt
+          exit 1
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ${{ matrix.test_task }} ${{ matrix.configure }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+  result:
+    if: ${{ always() }}
+    name: ${{ github.workflow }} result
+    runs-on: ubuntu-22.04
+    needs: [make]
+    steps:
+      - name: ${{ github.workflow }} jobs have failed
+        run: exit 1
+        working-directory:
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+
+  # Separated from `make` job to avoid making it a required status check for now
+  ruby-bench:
+    strategy:
+      matrix:
+        include:
+          # Test --call-threshold=2 with 2 iterations in total
+          - ruby_opts: '--zjit-call-threshold=2'
+            bench_opts: '--warmup=1 --bench=1 --excludes=shipit'
+            configure: '--enable-zjit=dev_nodebug' # --enable-zjit=dev is too slow
+
+    runs-on: ubuntu-24.04
+
+    if: >-
+      ${{!(false
+      || contains(github.event.head_commit.message, '[DOC]')
+      || contains(github.event.pull_request.title, '[DOC]')
+      || contains(github.event.pull_request.labels.*.name, 'Documentation')
+      || (github.event.pull_request.user.login == 'dependabot[bot]' && !startsWith(github.head_ref, 'dependabot/cargo'))
+      )}}
+
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/setup/ubuntu
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
+
+      - name: Run configure
+        run: ../src/configure -C --disable-install-doc --prefix="$(pwd)/install" ${{ matrix.configure }}
+
+      - run: make install
+
+      - name: Checkout ruby-bench
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          repository: ruby/ruby-bench
+          persist-credentials: false
+          path: ruby-bench
+
+      # If you want to skip failing benchmark, consider using `--excludes`.
+      # e.g. `bench_opts: '--warmup=1 --bench=1 --excludes=railsbench,lobsters'`
+      - name: Run ruby-bench
+        run: ruby run_benchmarks.rb -e "zjit::../build/install/bin/ruby ${{ matrix.ruby_opts }}" ${{ matrix.bench_opts }}
+        working-directory: ruby-bench
+        env:
+          BUNDLER_VERSION: 0
+
+      - uses: ./.github/actions/slack
+        with:
+          label: ruby-bench ${{ matrix.bench_opts }} ${{ matrix.ruby_opts }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/zizmor.yml b/.github/zizmor.yml
new file mode 100644
index 0000000000..2a8cad1d5c
--- /dev/null
+++ b/.github/zizmor.yml
@@ -0,0 +1,33 @@
+# Ignore existing findings (baseline)
+# Composite action findings are suppressed inline with # zizmor: ignore
+rules:
+  artipacked:
+    # These jobs push back to the repo and need persisted credentials.
+    ignore:
+      - bundled_gems.yml
+      - default_gems_list.yml
+      - post_push.yml
+      - sync_default_gems.yml
+  dangerous-triggers:
+    ignore:
+      - auto_request_review.yml
+      - auto_review_pr.yml
+      - labeler.yml
+      - pr-playground.yml
+  dependabot-cooldown:
+    ignore:
+      - dependabot.yml
+  misfeature:
+    ignore:
+      - mingw.yml
+      - tarball-windows.yml
+      - windows.yml
+  unpinned-images:
+    ignore:
+      - compilers.yml
+  secrets-outside-env:
+    # All committers with write access are trusted; no need for environment-scoped secrets.
+    disable: true
+  unpinned-uses:
+    ignore:
+      - wsl.yml
diff --git a/.gitignore b/.gitignore
index 165f313e84..7ead3a81f5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,38 +4,55 @@
 *.a
 *.bak
 *.bc
+*.bundle
 *.dSYM
 *.dmyh
 *.dylib
 *.elc
 *.i
+*.ii
 *.inc
 *.log
 *.o
+*.o.tmp
 *.obj
+*.old
 *.orig
+*.pch
 *.pdb
+*.rbinc
+*.rbbin
 *.rej
 *.s
 *.sav
+*.sl
+*.so
+*.so.*
 *.swp
 *.yarb
 *~
-.*-*
 .*.list
 .*.time
 .DS_Store
+.bundle
 .ccmalloc
 .ext
 .pc
 .ppack
 .svn
+.time
+.ruby-version
 Makefile
-Makefile.old
 cygruby*.def
 extconf.h
 y.output
 y.tab.c
+*.gcda
+*.gcno
+*.gcov
+*.vscode
+!misc/.vscode
+lcov*.info
 
 # /
 /*-fake.rb
@@ -45,13 +62,13 @@ y.tab.c
 /*.pc
 /*.rc
 /*_prelude.c
+/.downloaded-cache
+/.top-enc.mk
+/build*/
 /COPYING.LIB
-/ChangeLog-*
-/ChangeLog.pre-alpha
-/ChangeLog.pre1_1
+/ChangeLog
 /Doxyfile
 /GNUmakefile
-/GNUmakefile.old
 /README.atheos
 /README.fat-patch
 /README.v6
@@ -59,6 +76,7 @@ y.tab.c
 /archive
 /autom4te*.cache
 /automake
+/benchmark/benchmark-driver
 /beos
 /bmlog-*
 /breakpoints.gdb
@@ -79,9 +97,13 @@ y.tab.c
 /enc.mk
 /encdb.h
 /exts.mk
+/gc/*/exts.mk
 /goruby
 /id.[ch]
 /largefile.h
+/lcov-c-out
+/lcov-rb-out
+/lcov-out
 /lex.c
 /libruby*.*
 /miniprelude.c
@@ -97,28 +119,43 @@ y.tab.c
 /ppack
 /prelude.c
 /preview
+/probes.dmyh
 /probes.h
 /rbconfig.rb
 /rename2.h
 /repack
 /revision.h
+/revision.tmp
+/ripper.tmp.y
 /riscos
 /rubicon
 /ruby
 /ruby-runner
 /ruby-runner.h
 /ruby-man.rd.gz
+/rubyspec_temp
+/run.gdb
 /sizes.c
+/static-ruby
 /test.rb
+/test-coverage.dat
 /tmp
+/vcpkg_installed
 /transdb.h
 /uncommon.mk
 /verconf.h
 /verconf.mk
 /web
-/yasmdata.rb
+
+# /bin/
+
+/bin/*.exe
+/bin/*.dll
+/bin/goruby
+/bin/ruby
 
 # /benchmark/
+/benchmark/bm_require.data
 /benchmark/bmx_*.rb
 /benchmark/fasta.output.*
 /benchmark/wc.input
@@ -126,25 +163,38 @@ y.tab.c
 /enc/*.def
 /enc/*.exp
 /enc/*.lib
-/enc/unicode/data/*/*.txt
+/enc/jis/props.h
+/enc/unicode/data
+
+# /coroutine/
+!/coroutine/**/*.s
+!/coroutine/**/*.S
 
 # /enc/trans/
 /enc/trans/*.c
 /enc/trans/*.def
 /enc/trans/*.exp
 /enc/trans/*.lib
-/enc/trans/.time
+
+# /exe/
+/exe/goruby
+/exe/ruby
 
 # /ext/
 /ext/extinit.c
+/ext/configure-ext.mk
+/ext/*/exts.mk
+
+# /ext/-test-/cxxanyargs
+/ext/-test-/cxxanyargs/failure*.failed
 
 # /ext/-test-/win32/dln/
+/ext/-test-/win32/dln/dlntest.dll
 /ext/-test-/win32/dln/dlntest.exp
 /ext/-test-/win32/dln/dlntest.lib
 
-# /ext/dl/callback/
-/ext/dl/callback/callback-*.c
-/ext/dl/callback/callback.c
+# /ext/-test-/gems
+/ext/-test-/gems
 
 # /ext/etc/
 /ext/etc/constdefs.h
@@ -154,10 +204,14 @@ y.tab.c
 
 # /ext/rbconfig/
 /ext/rbconfig/sizeof/sizes.c
+/ext/rbconfig/sizeof/limits.c
 
 # /ext/ripper/
 /ext/ripper/eventids1.c
+/ext/ripper/eventids1.h
+/ext/ripper/.eventids2-check
 /ext/ripper/eventids2table.c
+/ext/ripper/ripper_init.c
 /ext/ripper/ripper.*
 /ext/ripper/ids1
 /ext/ripper/ids2
@@ -169,10 +223,18 @@ y.tab.c
 
 # /gems
 /gems/*.gem
+/gems/src
+/gems/*-*
+
+# /lib/
+/lib/ruby/[1-9]*.*
+/lib/ruby/vendor_ruby
 
-# /spec/
-/spec/mspec
-/spec/rubyspec
+# /misc/
+/misc/**/__pycache__
+
+# for `make test-bundler`
+/.rspec_status
 
 # /tool/
 /tool/config.guess
@@ -180,4 +242,50 @@ y.tab.c
 
 # /win32/
 /win32/*.ico
-/win32/.time
+
+
+# YJIT
+/yjit-bench
+/yjit_exit_locations.dump
+
+# Rust
+/target
+
+# /wasm/
+/wasm/tests/*.wasm
+
+# prism
+/lib/prism/compiler.rb
+/lib/prism/dispatcher.rb
+/lib/prism/dot_visitor.rb
+/lib/prism/dsl.rb
+/lib/prism/inspect_visitor.rb
+/lib/prism/mutation_compiler.rb
+/lib/prism/node.rb
+/lib/prism/reflection.rb
+/lib/prism/serialize.rb
+/lib/prism/visitor.rb
+/prism/internal/diagnostic.h
+/prism/api_node.c
+/prism/ast.h
+/prism/diagnostic.c
+/prism/json.c
+/prism/node.c
+/prism/prettyprint.c
+/prism/serialize.c
+/prism/tokens.c
+/prism/srcs.mk
+/dump_ast
+
+# prism (old file)
+/prism/token_type.c
+
+# tool/update-NEWS-gemlist.rb
+/bundled_gems.json
+/default_gems.json
+/gems/default_gems
+
+# AI agents
+/.claude
+/AGENTS.md
+/CLAUDE.md
diff --git a/.indent.pro b/.indent.pro
index 6a207a0554..1d61cbcad1 100644
--- a/.indent.pro
+++ b/.indent.pro
@@ -2,12 +2,15 @@
 -nbbb
 -nbc
 -br
+-brs
 -nbs
 -ncdb
--ce
--cli0.5
+-nce
+-cdw
+-cli2
+-cbi2
 -ndj
--ei
+-ncs
 -nfc1
 -i4
 -l120
@@ -16,6 +19,14 @@
 -psl
 -sc
 -sob
+-sbi4
+-nut
+-par
 
 -TID
 -TVALUE
+-Tst_data_t
+-Tst_index_t
+-Tst_table
+-Trb_data_type_t
+-TFILE
diff --git a/.mailmap b/.mailmap
new file mode 100644
index 0000000000..213a0f4916
--- /dev/null
+++ b/.mailmap
@@ -0,0 +1,431 @@
+git[bot]                                <svn-admin@ruby-lang.org>
+git[bot]                                <svn-admin@ruby-lang.org> git <svn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+svn[bot]                                <svn-admin@ruby-lang.org> svn <svn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# a_matsuda
+Akira Matsuda                           <ronnie@dio.jp>
+Akira Matsuda                           <ronnie@dio.jp> <a_matsuda@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# aamine
+Minero Aoki                             <aamine@loveruby.net>
+Minero Aoki                             <aamine@loveruby.net> <aamine@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# akira
+akira yamada                            <akira@ruby-lang.org>
+## akira yamada                         <akira@ruby-lang.org> <akira@rice.p.arika.org>
+akira yamada                            <akira@ruby-lang.org> <akira@arika.org>
+akira yamada                            <akira@ruby-lang.org> <akira@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# akiyoshi
+AKIYOSHI, Masamichi                     <masamichi.akiyoshi@hp.com>
+AKIYOSHI, Masamichi                     <masamichi.akiyoshi@hp.com> <akiyoshi@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# akr
+Tanaka Akira                            <akr@fsij.org>
+Tanaka Akira                            <akr@fsij.org> <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# arai
+Koji Arai                               <jca02266@nifty.ne.jp>
+Koji Arai                               <jca02266@nifty.ne.jp> <arai@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# arton
+Akio Tajima                             <artonx@yahoo.co.jp>
+Akio Tajima                             <artonx@yahoo.co.jp> <arton@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# aycabta
+aycabta                                 <aycabta@gmail.com>
+aycabta                                 <aycabta@gmail.com> <aycabta@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# ayumin
+Ayumu AIZAWA                            <ayumu.aizawa@gmail.com>
+Ayumu AIZAWA                            <ayumu.aizawa@gmail.com> <ayumin@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# azav
+Alexander Zavorine                      <alexandre.zavorine@nokia.com>
+Alexander Zavorine                      <alexandre.zavorine@nokia.com> <azav@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# charliesome
+Charlie Somerville                      <charliesome@ruby-lang.org>
+Charlie Somerville                      <charliesome@ruby-lang.org> <charliesome@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# dave
+Dave Thomas                             <dave@pragprog.com>
+Dave Thomas                             <dave@pragprog.com> <dave@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# davidflanagan
+David Flanagan                          <davidflanagan@ruby-lang.org>
+David Flanagan                          <davidflanagan@ruby-lang.org> <david@think32>
+David Flanagan                          <davidflanagan@ruby-lang.org> <david@davidflanagan.com>
+David Flanagan                          <davidflanagan@ruby-lang.org> <davidflanagan@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# dblack
+David A. Black                          <dblack@rubypal.com>
+David A. Black                          <dblack@rubypal.com> <dblack@wobblini.net>
+David A. Black                          <dblack@rubypal.com> <dblack@superlink.net>
+David A. Black                          <dblack@rubypal.com> <dblack@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# drbrain
+Eric Hodel                              <drbrain@segment7.net>
+Eric Hodel                              <drbrain@segment7.net> <drbrain@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# duerst
+Martin Dürst                            <duerst@it.aoyama.ac.jp>
+Martin Dürst                            <duerst@it.aoyama.ac.jp> <duerst@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# eban
+WATANABE Hirofumi                       <eban@ruby-lang.org>
+WATANABE Hirofumi                       <eban@ruby-lang.org> <eban@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# emboss
+Martin Bosslet                          <Martin.Bosslet@gmail.com>
+Martin Bosslet                          <Martin.Bosslet@gmail.com> <Martin.Bosslet@googlemail.com>
+Martin Bosslet                          <Martin.Bosslet@gmail.com> <emboss@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# eregon
+Benoit Daloze                           <eregontp@gmail.com>
+Benoit Daloze                           <eregontp@gmail.com> <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# evan
+Evan Phoenix                            <evan@ruby-lang.org>
+Evan Phoenix                            <evan@ruby-lang.org> <evan@fallingsnow.net>
+Evan Phoenix                            <evan@ruby-lang.org> <evan@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# glass
+Masaki Matsushita                       <glass.saga@gmail.com>
+Masaki Matsushita                       <glass.saga@gmail.com> <glass@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# gogotanaka
+Kazuki Tanaka                           <gogotanaka@ruby-lang.org>
+Kazuki Tanaka                           <gogotanaka@ruby-lang.org> <gogotanaka@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# gotoken
+Kentaro Goto                            <gotoken@gmail.com>
+Kentaro Goto                            <gotoken@gmail.com> <gotoken@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# gotoyuzo
+GOTOU Yuuzou                            <gotoyuzo@notwork.org>
+GOTOU Yuuzou                            <gotoyuzo@notwork.org> <gotoyuzo@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# gsinclair
+Gavin Sinclair                          <gsinclair@soyabean.com.au>
+Gavin Sinclair                          <gsinclair@soyabean.com.au> <gsinclair@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# H_Konishi
+KONISHI Hiromasa                        <konishih@fd6.so-net.ne.jp>
+KONISHI Hiromasa                        <konishih@fd6.so-net.ne.jp> <H_Konishi@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# headius
+Charles Oliver Nutter                   <headius@headius.com>
+Charles Oliver Nutter                   <headius@headius.com> <headius@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# hone
+Terence Lee                             <hone@heroku.com>
+Terence Lee                             <hone@heroku.com> <hone@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# hsbt
+Hiroshi SHIBATA                         <hsbt@ruby-lang.org>
+Hiroshi SHIBATA                         <hsbt@ruby-lang.org> <hsbt@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# iwamatsu
+Nobuhiro Iwamatsu                       <iwamatsu@nigauri.org>
+Nobuhiro Iwamatsu                       <iwamatsu@nigauri.org> <iwamatsu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# jeg2
+James Edward Gray II                    <james@graysoftinc.com>
+James Edward Gray II                    <james@graysoftinc.com> <jeg2@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# jim
+Jim Weirich                             <jim@tardis.local>
+Jim Weirich                             <jim@tardis.local> <jim@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# k0kubun
+Takashi Kokubun                         <takashikkbn@gmail.com>
+Takashi Kokubun                         <takashikkbn@gmail.com> <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# kanemoto
+Yutaka Kanemoto                         <kanemoto@ruby-lang.org>
+Yutaka Kanemoto                         <kanemoto@ruby-lang.org> <kanemoto@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# katsu
+UENO Katsuhiro                          <katsu@blue.sky.or.jp>
+UENO Katsuhiro                          <katsu@blue.sky.or.jp> <katsu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# kazu
+Kazuhiro NISHIYAMA                      <zn@mbf.nifty.com>
+Kazuhiro NISHIYAMA                      <zn@mbf.nifty.com> <kazu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# keiju
+Keiju Ishitsuka                         <keiju@ishitsuka.com>
+Keiju Ishitsuka                         <keiju@ishitsuka.com> <keiju@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# knu
+Akinori MUSHA                           <knu@iDaemons.org>
+Akinori MUSHA                           <knu@iDaemons.org> <knu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# ko1
+Koichi Sasada                           <ko1@atdot.net>
+Koichi Sasada                           <ko1@atdot.net> <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# kosaki
+KOSAKI Motohiro                         <kosaki.motohiro@gmail.com>
+KOSAKI Motohiro                         <kosaki.motohiro@gmail.com> <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# kosako
+K.Kosako                                <sndgk393@ybb.ne.jp>
+K.Kosako                                <sndgk393@ybb.ne.jp> <kosako@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# kou
+Sutou Kouhei                            <kou@clear-code.com>
+Sutou Kouhei                            <kou@clear-code.com> <kou@cozmixng.org>
+Sutou Kouhei                            <kou@clear-code.com> <kou@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# kouji
+Kouji Takao                             <kouji.takao@gmail.com>
+Kouji Takao                             <kouji.takao@gmail.com> <kouji@takao7.net>
+Kouji Takao                             <kouji.takao@gmail.com> <kouji@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# ksaito
+Kazuo Saito                             <ksaito@uranus.dti.ne.jp>
+Kazuo Saito                             <ksaito@uranus.dti.ne.jp> <ksaito@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# ktsj
+Kazuki Tsujimoto                        <kazuki@callcc.net>
+Kazuki Tsujimoto                        <kazuki@callcc.net> <ktsj@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# luislavena
+Luis Lavena                             <luislavena@gmail.com>
+Luis Lavena                             <luislavena@gmail.com> <luislavena@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# mame
+Yusuke Endoh                            <mame@ruby-lang.org>
+## Yusuke Endoh                         <mame@ruby-lang.org> <mame@tsg.ne.jp>
+Yusuke Endoh                            <mame@ruby-lang.org> <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# marcandre
+Marc-Andre Lafortune                    <github@marc-andre.ca>
+Marc-Andre Lafortune                    <ruby-core@marc-andre.ca>
+Marc-Andre Lafortune                    <ruby-core@marc-andre.ca> <marcandre@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# matz
+Yukihiro "Matz" Matsumoto               <matz@ruby.or.jp>
+Yukihiro "Matz" Matsumoto               <matz@ruby.or.jp> <matz@ruby-lang.org>
+Yukihiro "Matz" Matsumoto               <matz@ruby.or.jp> <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# michal
+Michal Rokos                            <michal@ruby-lang.org>
+Michal Rokos                            <michal@ruby-lang.org> <michal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# mneumann
+Michael Neumann                         <mneumann@ruby-lang.org>
+Michael Neumann                         <mneumann@ruby-lang.org> <mneumann@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# mrkn
+Kenta Murata                            <mrkn@mrkn.jp>
+Kenta Murata                            <mrkn@mrkn.jp> <muraken@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+Kenta Murata                            <mrkn@mrkn.jp> <3959+mrkn@users.noreply.github.com>
+Kenta Murata                            <mrkn@mrkn.jp> <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# nagachika
+nagachika                               <nagachika@ruby-lang.org>
+nagachika                               <nagachika@ruby-lang.org> <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# nagai
+Hidetoshi NAGAI                         <nagai@ai.kyutech.ac.jp>
+Hidetoshi NAGAI                         <nagai@ai.kyutech.ac.jp> <nagai@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# nahi
+Hiroshi Nakamura                        <nahi@ruby-lang.org>
+Hiroshi Nakamura                        <nahi@ruby-lang.org> <nahi@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# nari
+Narihiro Nakamura                       <authornari@gmail.com>
+Narihiro Nakamura                       <authornari@gmail.com> <nari@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# naruse
+NARUSE, Yui                             <naruse@airemix.jp>
+NARUSE, Yui                             <naruse@airemix.jp> <naruse@ruby-lang.org>
+NARUSE, Yui                             <naruse@airemix.jp> <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# ngoto
+Naohisa Goto                            <ngotogenome@gmail.com>
+Naohisa Goto                            <ngotogenome@gmail.com> <ngoto@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# nobu
+Nobuyoshi Nakada                        <nobu@ruby-lang.org>
+Nobuyoshi Nakada                        <nobu@ruby-lang.org> <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# normal
+Eric Wong                               <normal@ruby-lang.org>
+Eric Wong                               <normal@ruby-lang.org> <e@80x24.org>
+Eric Wong                               <normal@ruby-lang.org> <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# ntalbott
+Nathaniel Talbott                       <ntalbott@ruby-lang.org>
+Nathaniel Talbott                       <ntalbott@ruby-lang.org> <ntalbott@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# ocean
+Hirokazu Yamamoto                       <ocean@m2.ccsnet.ne.jp>
+Hirokazu Yamamoto                       <ocean@m2.ccsnet.ne.jp> <ocean@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# odaira
+Rei Odaira                              <rodaira@us.ibm.com>
+Rei Odaira                              <rodaira@us.ibm.com> <Rei.Odaira@gmail.com>
+Rei Odaira                              <rodaira@us.ibm.com> <odaira@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# okkez
+okkez                                   <okkez000@gmail.com>
+okkez                                   <okkez000@gmail.com> <okkez@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# rhe
+Kazuki Yamaguchi                        <k@rhe.jp>
+Kazuki Yamaguchi                        <k@rhe.jp> <rhe@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# ryan
+Ryan Davis                              <ryand-github@zenspider.com>
+Ryan Davis                              <ryand-github@zenspider.com> <ryand-ruby@zenspider.com>
+Ryan Davis                              <ryand-github@zenspider.com> <ryan@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# samuel
+Samuel Williams                         <samuel.williams@oriontransfer.co.nz>
+Samuel Williams                         <samuel.williams@oriontransfer.co.nz> <samuel@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# seki
+Masatoshi SEKI                          <m_seki@mva.biglobe.ne.jp>
+Masatoshi SEKI                          <m_seki@mva.biglobe.ne.jp> <seki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# ser
+Sean Russell                            <ser@germane-software.com>
+Sean Russell                            <ser@germane-software.com> <ser@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# shigek
+Shigeo Kobayashi                        <shigek@ruby-lang.org>
+Shigeo Kobayashi                        <shigek@ruby-lang.org> <shigek@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# shirosaki
+Hiroshi Shirosaki                       <h.shirosaki@gmail.com>
+Hiroshi Shirosaki                       <h.shirosaki@gmail.com> <shirosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# sho-h
+Sho Hashimoto                           <sho-h@ruby-lang.org>
+Sho Hashimoto                           <sho-h@ruby-lang.org> <sho-h@netlab.jp>
+Sho Hashimoto                           <sho-h@ruby-lang.org> <sho.hsmt@gmail.com>
+Sho Hashimoto                           <sho-h@ruby-lang.org> <sho-h@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# shugo
+Shugo Maeda                             <shugo@ruby-lang.org>
+Shugo Maeda                             <shugo@ruby-lang.org> <shugo@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# shyouhei
+卜部昌平                                    <shyouhei@ruby-lang.org>
+卜部昌平                                    <shyouhei@ruby-lang.org> <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# siena
+Siena.                                  <siena@faculty.chiba-u.jp>
+Siena.                                  <siena@faculty.chiba-u.jp> <siena@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# sonots
+sonots                                  <sonots@gmail.com>
+sonots                                  <sonots@gmail.com> <sonots@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# sorah
+Sorah Fukumori                          <her@sorah.jp>
+Sorah Fukumori                          <her@sorah.jp> <sorah@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# stomar
+Marcus Stollsteimer                     <sto.mar@web.de>
+Marcus Stollsteimer                     <sto.mar@web.de> <stomar@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# suke
+Masaki Suketa                           <masaki.suketa@nifty.ne.jp>
+Masaki Suketa                           <masaki.suketa@nifty.ne.jp> <suke@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# tadd
+Tadashi Saito                           <tad.a.digger@gmail.com>
+Tadashi Saito                           <tad.a.digger@gmail.com> <tadd@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# tadf
+Tadayoshi Funaba                        <tadf@dotrb.org>
+Tadayoshi Funaba                        <tadf@dotrb.org> <tadf@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# takano32
+TAKANO Mitsuhiro                        <takano32@gmail.com>
+TAKANO Mitsuhiro                        <takano32@gmail.com> <takano32@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# tarui
+Masaya Tarui                            <tarui@ruby-lang.org>
+Masaya Tarui                            <tarui@ruby-lang.org> <tarui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# technorama
+Technorama Ltd.                         <oss-ruby@technorama.net>
+Technorama Ltd.                         <oss-ruby@technorama.net> <technorama@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# tenderlove
+Aaron Patterson                         <tenderlove@ruby-lang.org>
+Aaron Patterson                         <tenderlove@ruby-lang.org> <tenderlove@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# tmm1
+Aman Gupta                              <ruby@tmm1.net>
+Aman Gupta                              <ruby@tmm1.net> <tmm1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# ts
+Guy Decoux                              <ts@moulon.inra.fr>
+Guy Decoux                              <ts@moulon.inra.fr> <ts@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# ttate
+Takaaki Tateishi                        <ttate@ttsky.net>
+## Takaaki Tateishi                     <ttate@ttsky.net> <ttate@kt.jaist.ac.jp>
+Takaaki Tateishi                        <ttate@ttsky.net> <ttate@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# uema2
+Takaaki Uematsu                         <uema2x@jcom.home.ne.jp>
+Takaaki Uematsu                         <uema2x@jcom.home.ne.jp> <uema2@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# usa
+U.Nakamura                              <usa@ruby-lang.org>
+U.Nakamura                              <usa@ruby-lang.org> <usa@garbagecollect.jp>
+U.Nakamura                              <usa@ruby-lang.org> <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# wakou
+Wakou Aoyama                            <wakou@ruby-lang.org>
+Wakou Aoyama                            <wakou@ruby-lang.org> <wakou@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# wanabe
+wanabe                                  <s.wanabe@gmail.com>
+wanabe                                  <s.wanabe@gmail.com> <wanabe@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# watson1978
+Watson                                  <watson1978@gmail.com>
+Watson                                  <watson1978@gmail.com> <watson1978@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# wew
+William Webber                          <william@williamwebber.com>
+William Webber                          <william@williamwebber.com> <wew@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# why
+why the lucky stiff                     <why@ruby-lang.org>
+why the lucky stiff                     <why@ruby-lang.org> <why@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# xibbar
+Takeyuki FUJIOKA                        <xibbar@ruby-lang.org>
+Takeyuki FUJIOKA                        <xibbar@ruby-lang.org> <xibbar@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# yugui
+Yuki Yugui Sonoda                       <yugui@yugui.jp>
+Yuki Yugui Sonoda                       <yugui@yugui.jp> <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# yui-knk
+yui-knk                                 <spiketeika@gmail.com>
+yui-knk                                 <spiketeika@gmail.com> <yui-knk@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# yuki
+Yuki Nishijima                          <yuki24@hey.com>
+Yuki Nishijima                          <yuki24@hey.com> <mail@yukinishijima.net>
+Yuki Nishijima                          <yuki24@hey.com> <yuki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# zsombor
+Dee Zsombor                             <zsombor@ruby-lang.org>
+Dee Zsombor                             <zsombor@ruby-lang.org> <zsombor@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+
+# zzak
+zzak                                    <zzakscott@gmail.com>
+zzak                                    <zzakscott@gmail.com> <zzak@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
diff --git a/.rdoc_options b/.rdoc_options
new file mode 100644
index 0000000000..5172911e16
--- /dev/null
+++ b/.rdoc_options
@@ -0,0 +1,37 @@
+---
+page_dir: doc
+main_page: index.md
+title: Documentation for Ruby development version
+visibility: :private
+rdoc_include:
+- doc
+
+exclude:
+- \.gemspec\z
+- lib/set/subclass_compatible.rb
+
+autolink_excluded_words:
+- Box
+- Class
+- Method
+- Module
+- Process
+- RDoc
+- Ruby
+- Set
+- ZJIT
+- YJIT
+
+canonical_root: https://docs.ruby-lang.org/en/master
+
+footer_content:
+  Ruby:
+    Documentation: index.html
+    Official Website: https://www.ruby-lang.org/
+    Playground: https://ruby.github.io/play-ruby/
+  Resources:
+    GitHub: https://github.com/ruby/ruby
+    Issue Tracker: https://bugs.ruby-lang.org/projects/ruby-master/issues
+    RubyGems: https://rubygems.org/
+  Community:
+    X: https://x.com/rubylangorg
diff --git a/.rspec_parallel b/.rspec_parallel
new file mode 100644
index 0000000000..aaff198a32
--- /dev/null
+++ b/.rspec_parallel
@@ -0,0 +1,2 @@
+--format progress
+--format ParallelTests::RSpec::RuntimeLogger --out tmp/parallel_runtime_rspec.log
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 2d94b9be03..0000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,94 +0,0 @@
-# Copyright (C) 2011 Urabe, Shyouhei.  All rights reserved.
-#
-# This file is  a part of the programming language  Ruby.  Permission is hereby
-# granted,  to either  redistribute  or  modify this  file,  provided that  the
-# conditions  mentioned in  the file  COPYING are  met.  Consult  the  file for
-# details.
-
-# This is  a Travis-CI  build configuration file.   The list  of configurations
-# available is located in
-#
-#     http://about.travis-ci.org/docs/user/build-configuration/
-#
-# and as Ruby itself is a project written in C language,
-#
-#     http://about.travis-ci.org/docs/user/languages/c/
-#
-# is also a good place to look at.
-
-language: c
-
-sudo: false
-
-compiler:
-  - gcc
-
-os:
-  - linux
-
-before_install:
-  - "CONFIG_FLAG="
-  - "JOBS='-j 4'"
-
-before_script:
-  - "uname -a"
-  - "uname -r"
-  - "rm -fr .ext autom4te.cache"
-  - "echo $TERM"
-  - "make -f common.mk BASERUBY=ruby MAKEDIRS='mkdir -p' srcdir=. update-config_files"
-  - "autoconf"
-  - "mkdir config_1st config_2nd"
-  - "./configure -C --disable-install-doc --with-gcc=$CC $CONFIG_FLAG"
-  - "cp -pr config.status .ext/include config_1st"
-  - "make reconfig"
-  - "cp -pr config.status .ext/include config_2nd"
-  - "diff -ru config_1st config_2nd"
-  - "make after-update BASERUBY=ruby"
-  - "make -s $JOBS"
-  - "make update-rubyspec"
-
-script:
-  - "make test TESTOPTS=--color=never"
-  - "make test-all TESTOPTS='-q -j3 --color=never --job-status=normal'"
-  - "make test-rubyspec MSPECOPT=-fm"
-
-# Branch matrix.  Not all branches are Travis-ready so we limit branches here.
-branches:
-  only:
-    - trunk
-    - ruby_2_1
-    - ruby_2_2
-    - ruby_2_3
-    - /^feature\//
-    - /^bug\//
-
-# We want to be notified when something happens.
-notifications:
-  irc:
-    channels:
-      - "chat.freenode.net#ruby-core"
-      - "chat.freenode.net#ruby-ja"
-    on_success: change # [always|never|change] # default: always
-    on_failure: always # [always|never|change] # default: always
-    template:
-      - "%{message} by @%{author}: See %{build_url}"
-
-  # Update ruby-head installed on Travis CI so other projects can test against it.
-  webhooks:
-    urls:
-      - "https://rubies.travis-ci.org/rebuild/ruby-head"
-    on_success: always
-    on_failure: never
-
-  email:
-    - ko1c-failure@atdot.net
-    - shibata.hiroshi@gmail.com
-
-# Local Variables:
-# mode: YAML
-# coding: utf-8-unix
-# indent-tabs-mode: nil
-# tab-width: 4
-# fill-column: 79
-# default-justification: full
-# End:
diff --git a/BSDL b/BSDL
index a009caefea..66d93598aa 100644
--- a/BSDL
+++ b/BSDL
@@ -4,10 +4,10 @@ Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 1. Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
+   notice, this list of conditions and the following disclaimer.
 2. Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
 
 THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ffdf2dd4b8..35e79dd3b9 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,4 +1 @@
-Please see the [official issue tracker] and wiki [HowToContribute].
-
-[official issue tracker]: https://bugs.ruby-lang.org
-[HowToContribute]: https://bugs.ruby-lang.org/projects/ruby/wiki/HowToContribute
+See ["Contributing to Ruby"](https://docs.ruby-lang.org/en/master/contributing/contributing_md.html), which includes setup and build instructions.
diff --git a/COPYING b/COPYING
index 426810a7fb..428ce03ed7 100644
--- a/COPYING
+++ b/COPYING
@@ -1,56 +1,58 @@
+{日本語}[rdoc-ref:COPYING.ja]
+
 Ruby is copyrighted free software by Yukihiro Matsumoto <matz@netlab.jp>.
 You can redistribute it and/or modify it under either the terms of the
 2-clause BSDL (see the file BSDL), or the conditions below:
 
-  1. You may make and give away verbatim copies of the source form of the
-     software without restriction, provided that you duplicate all of the
-     original copyright notices and associated disclaimers.
+1. You may make and give away verbatim copies of the source form of the
+   software without restriction, provided that you duplicate all of the
+   original copyright notices and associated disclaimers.
 
-  2. You may modify your copy of the software in any way, provided that
-     you do at least ONE of the following:
+2. You may modify your copy of the software in any way, provided that
+   you do at least ONE of the following:
 
-       a) place your modifications in the Public Domain or otherwise
-          make them Freely Available, such as by posting said
-	  modifications to Usenet or an equivalent medium, or by allowing
-	  the author to include your modifications in the software.
+   a. place your modifications in the Public Domain or otherwise
+      make them Freely Available, such as by posting said
+      modifications to Usenet or an equivalent medium, or by allowing
+      the author to include your modifications in the software.
 
-       b) use the modified software only within your corporation or
-          organization.
+   b. use the modified software only within your corporation or
+      organization.
 
-       c) give non-standard binaries non-standard names, with
-          instructions on where to get the original software distribution.
+   c. give non-standard binaries non-standard names, with
+      instructions on where to get the original software distribution.
 
-       d) make other distribution arrangements with the author.
+   d. make other distribution arrangements with the author.
 
-  3. You may distribute the software in object code or binary form,
-     provided that you do at least ONE of the following:
+3. You may distribute the software in object code or binary form,
+   provided that you do at least ONE of the following:
 
-       a) distribute the binaries and library files of the software,
-	  together with instructions (in the manual page or equivalent)
-	  on where to get the original distribution.
+   a. distribute the binaries and library files of the software,
+      together with instructions (in the manual page or equivalent)
+      on where to get the original distribution.
 
-       b) accompany the distribution with the machine-readable source of
-	  the software.
+   b. accompany the distribution with the machine-readable source of
+      the software.
 
-       c) give non-standard binaries non-standard names, with
-          instructions on where to get the original software distribution.
+   c. give non-standard binaries non-standard names, with
+      instructions on where to get the original software distribution.
 
-       d) make other distribution arrangements with the author.
+   d. make other distribution arrangements with the author.
 
-  4. You may modify and include the part of the software into any other
-     software (possibly commercial).  But some files in the distribution
-     are not written by the author, so that they are not under these terms.
+4. You may modify and include the part of the software into any other
+   software (possibly commercial).  But some files in the distribution
+   are not written by the author, so that they are not under these terms.
 
-     For the list of those files and their copying conditions, see the
-     file LEGAL.
+   For the list of those files and their copying conditions, see the
+   file LEGAL.
 
-  5. The scripts and library files supplied as input to or produced as
-     output from the software do not automatically fall under the
-     copyright of the software, but belong to whomever generated them,
-     and may be sold commercially, and may be aggregated with this
-     software.
+5. The scripts and library files supplied as input to or produced as
+   output from the software do not automatically fall under the
+   copyright of the software, but belong to whomever generated them,
+   and may be sold commercially, and may be aggregated with this
+   software.
 
-  6. THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
-     IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-     PURPOSE.
+6. THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
+   IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+   PURPOSE.
diff --git a/COPYING.ja b/COPYING.ja
index e50d01c8d1..5de2dbcc8f 100644
--- a/COPYING.ja
+++ b/COPYING.ja
@@ -1,51 +1,53 @@
+{English}[rdoc-ref:COPYING]
+
 本プログラムはフリーソフトウェアです．2-clause BSDL
 または以下に示す条件で本プログラムを再配布できます
 2-clause BSDLについてはBSDLファイルを参照して下さい．
 
-  1. 複製は制限なく自由です．
+1. 複製は制限なく自由です．
 
-  2. 以下の条件のいずれかを満たす時に本プログラムのソースを
-     自由に変更できます．
+2. 以下の条件のいずれかを満たす時に本プログラムのソースを
+   自由に変更できます．
 
-     (a) ネットニューズにポストしたり，作者に変更を送付する
-         などの方法で，変更を公開する．
+   a.  ネットニューズにポストしたり，作者に変更を送付する
+       などの方法で，変更を公開する．
 
-     (b) 変更した本プログラムを自分の所属する組織内部だけで
-         使う．
+   b.  変更した本プログラムを自分の所属する組織内部だけで
+       使う．
 
-     (c) 変更点を明示したうえ，ソフトウェアの名前を変更する．
-         そのソフトウェアを配布する時には変更前の本プログラ
-         ムも同時に配布する．または変更前の本プログラムのソー
-         スの入手法を明示する．
+   c.  変更点を明示したうえ，ソフトウェアの名前を変更する．
+       そのソフトウェアを配布する時には変更前の本プログラ
+       ムも同時に配布する．または変更前の本プログラムのソー
+       スの入手法を明示する．
 
-     (d) その他の変更条件を作者と合意する．
+   d.  その他の変更条件を作者と合意する．
 
-  3. 以下の条件のいずれかを満たす時に本プログラムをコンパイ
-     ルしたオブジェクトコードや実行形式でも配布できます．
+3. 以下の条件のいずれかを満たす時に本プログラムをコンパイ
+   ルしたオブジェクトコードや実行形式でも配布できます．
 
-     (a) バイナリを受け取った人がソースを入手できるように，
-         ソースの入手法を明示する．
+   a.  バイナリを受け取った人がソースを入手できるように，
+       ソースの入手法を明示する．
 
-     (b) 機械可読なソースコードを添付する．
+   b.  機械可読なソースコードを添付する．
 
-     (c) 変更を行ったバイナリは名前を変更したうえ，オリジナ
-         ルのソースコードの入手法を明示する．
+   c.  変更を行ったバイナリは名前を変更したうえ，オリジナ
+       ルのソースコードの入手法を明示する．
 
-     (d) その他の配布条件を作者と合意する．
+   d.  その他の配布条件を作者と合意する．
 
-  4. 他のプログラムへの引用はいかなる目的であれ自由です．た
-     だし，本プログラムに含まれる他の作者によるコードは，そ
-     れぞれの作者の意向による制限が加えられる場合があります．
+4. 他のプログラムへの引用はいかなる目的であれ自由です．た
+   だし，本プログラムに含まれる他の作者によるコードは，そ
+   れぞれの作者の意向による制限が加えられる場合があります．
 
-     それらファイルの一覧とそれぞれの配布条件などに付いては
-     LEGALファイルを参照してください．
+   それらファイルの一覧とそれぞれの配布条件などに付いては
+   LEGALファイルを参照してください．
 
-  5. 本プログラムへの入力となるスクリプトおよび，本プログラ
-     ムからの出力の権利は本プログラムの作者ではなく，それぞ
-     れの入出力を生成した人に属します．また，本プログラムに
-     組み込まれるための拡張ライブラリについても同様です．
+5. 本プログラムへの入力となるスクリプトおよび，本プログラ
+   ムからの出力の権利は本プログラムの作者ではなく，それぞ
+   れの入出力を生成した人に属します．また，本プログラムに
+   組み込まれるための拡張ライブラリについても同様です．
 
-  6. 本プログラムは無保証です．作者は本プログラムをサポート
-     する意志はありますが，プログラム自身のバグあるいは本プ
-     ログラムの実行などから発生するいかなる損害に対しても責
-     任を持ちません．
+6. 本プログラムは無保証です．作者は本プログラムをサポート
+   する意志はありますが，プログラム自身のバグあるいは本プ
+   ログラムの実行などから発生するいかなる損害に対しても責
+   任を持ちません．
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new file mode 100644
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+]
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000000..33010e65fb
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,64 @@
+# This is the root Cargo [workspace](https://doc.rust-lang.org/cargo/reference/workspaces.html)
+# and the root package for all the rust code that are statically linked into ruby. Rust tooling
+# limitations means all Rust code need to share a single archive library (staticlib) at the
+# integration point with non-rust code. (See rustlang/rust#44322 and #104707 for a taste of
+# the linking challenges.)
+#
+# Do not add required dependencies. This is a policy that helps downstream consumers and give
+# us tight control over what we ship. All of the optional dependencies are used exclusively
+# during development.
+#
+# Release builds avoid Cargo entirely because offline builds can fail even when none of the
+# optional dependencies are built (rust-lang/cargo#10352).
+
+[workspace]
+members = ["zjit", "yjit", "jit"]
+
+[package]
+name = "ruby"
+version = "0.0.0"
+edition = "2024"
+rust-version = "1.85.0"
+publish = false # Don't publish to crates.io
+
+[dependencies]
+yjit = { path = "yjit", optional = true }
+zjit = { path = "zjit", optional = true }
+
+[lib]
+crate-type = ["staticlib"]
+path = "ruby.rs"
+
+[features]
+disasm = ["yjit?/disasm", "zjit?/disasm"]
+runtime_checks = ["yjit?/runtime_checks", "zjit?/runtime_checks"]
+yjit = [ "dep:yjit" ]
+zjit = [ "dep:zjit" ]
+
+[profile.dev]
+opt-level = 1 # On 0, functions use so much stack space that we get stray `SystemStackError`s
+debug = true
+debug-assertions = true
+overflow-checks = true
+
+[profile.test]
+inherits = "dev"
+opt-level = 0
+
+[profile.dev_nodebug]
+inherits = "dev"
+
+[profile.stats]
+inherits = "release"
+
+[profile.release]
+# NOTE: --enable-yjit and zjit builds use `rustc` without going through Cargo. You
+# might want to update the `rustc` invocation if you change this profile.
+opt-level = 3
+# The extra robustness that comes from checking for arithmetic overflow is
+# worth the performance cost for the compiler.
+overflow-checks = true
+# Generate debug info
+debug = true
+# Use ThinLTO. Much smaller output for a small amount of build time increase.
+lto = "thin"
diff --git a/ChangeLog b/ChangeLog
deleted file mode 100644
index 29a6001d40..0000000000
--- a/ChangeLog
+++ /dev/null
@@ -1,9402 +0,0 @@
-Sun Nov  6 01:28:41 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.h: rename REG_(CFP|PC|SP|EP) to VM_REG_....
-	  [Bug #12527]
-
-	* vm_exec.c: ditto.
-
-Sun Nov  6 00:25:11 2016  Sho Hashimoto  <sho.hsmt@gmail.com>
-
-	* enumerator.c (InitVM_Enumerator): Enumerator::Lazy#chunk_while
-	  defined.  [Fix GH-1186]
-	  https://github.com/ruby/ruby/pull/1186
-
-Sun Nov  6 00:22:51 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* vm_eval.c (vm_call0_cfunc_with_frame): pass method id to
-	  dtrace hook. follow up r56592.
-
-Sun Nov  6 00:06:38 2016  Tanaka Akira  <akr@fsij.org>
-
-	* lib/resolv.rb (Resolv::LOC::Coord.create): fixed.
-	  [ruby-core:72567] [Bug #11912] fixed by Eric Wong and Kazuhiro
-	  NISHIYAMA.
-
-Sun Nov  6 00:03:09 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (-Wimplicit-fallthrough): gcc7 introduces case
-	  fall through warnings but it is too noisy.
-	  https://gcc.gnu.org/bugzilla/show_bug.cgi?id=7652
-
-Sat Nov  5 23:58:32 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* numeric.c (rb_int_round): cast to SIGNED_VALUE to suppress
-	  warnings by -Wsign-compare.
-
-Sat Nov  5 23:48:27 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* file.c (rb_home_dir_of): convert given username into filesystem
-	  encoding. [ruby-core:76682] [Bug #12652]
-	  patched by Dāvis Mosāns
-
-Sat Nov  5 23:46:03 2016  Tanaka Akira  <akr@fsij.org>
-
-	* time.c (vtm_add_offset): Fix yday on last day of year.
-	  [ruby-core:72878] [Bug #11994] Fixed by Andrew White.
-
-Sat Nov  5 23:30:41 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/http.rb (Net::HTTP.post): new convenience method to send
-	  a POST request.  [ruby-core:75484] [Feature #12375]
-
-Sat Nov  5 23:03:54 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/net/http.rb (transport_request): other than HTTPContinue
-	  in 1xx (HTTPInformation) also needs to continue. [Bug #12890]
-
-Sat Nov  5 22:51:06 2016  Tanaka Akira  <akr@fsij.org>
-
-	* lib/time.rb (make_time): "now" argument as nil works again.
-	  This is broken since Ruby 2.2.
-	  Mathieu Jobin pointed a problem.
-	  https://github.com/ruby/ruby/commit/e4b05d91eb0d48fd172abf015c493bb42d755d07#commitcomment-17421387
-
-Sat Nov  5 22:50:13 2016  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/ipaddr.rb (IPAddr#==): If coercion fails, return false
-	  instead of passing through the exception. [ruby-core:77451]
-	  [Bug #12799]
-
-	* lib/ipaddr.rb (IPAddr#<=>): If coercion fails, return nil
-	  instead of passing through the exception. [ruby-core:77451]
-	  [Bug #12799]
-
-Sat Nov  5 22:11:33 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* vm_trace.c (tracepoint_attr_callee_id, rb_tracearg_callee_id):
-	  add TracePoint#callee_id. [ruby-core:77241] [Feature #12747]
-
-	* cont.c, eval.c, gc.c, include/ruby/intern.h, insns.def, thread.c,
-	  vm.c, vm_backtrace.c, vm_core.h, vm_eval.c, vm_insnhelper.c, vm_trace.c: ditto.
-
-	* test/ruby/test_settracefunc.rb: tests for above.
-
-Sat Nov  5 22:09:48 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* eval.c, method.h, proc.c, vm.c, vm_eval.c, vm_insnhelper.c, vm_method.c:
-	  TracePoint#method_id should return method_id, not callee_id.
-	  [ruby-core:77241] [Feature #12747]
-
-	* test/ruby/test_settracefunc.rb: change accordingly.
-
-Sat Nov  5 18:49:37 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (flo_round, int_round): support round-to-nearest-even
-	  semantics of IEEE 754 to match sprintf behavior, and add `half:`
-	  optional keyword argument for the old behavior.
-	  [ruby-core:76273] [Bug #12548]
-
-Sat Nov  5 18:17:54 2016  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/set.rb (Set#compare_by_identity, Set#compare_by_identity?):
-	  New methods. [Feature #12210]
-
-Sat Nov  5 18:17:08 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rdoc/*, test/rdoc/*: Update rdoc-5.0.0
-	  Release note: https://github.com/rdoc/rdoc/blob/b825775647f62c5b525e9780a28ff2fbb1d5bf6f/History.rdoc#500--2016-11-05
-
-Sat Nov  5 17:29:06 2016  Tanaka Akira  <akr@fsij.org>
-
-	* lib/resolv.rb (Resolv::DNS#extract_resources): Use each_resource
-	  instead of each_answer.
-	  [ruby-core:75461] [Bug #12372] reported by Rafael Fernandez Lopez.
-
-Sat Nov  5 17:18:24 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/-test-/file/fs.c (get_atime_p): Updating of file access times
-	  is enabled or not.
-
-Sat Nov  5 16:28:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (extract_getline_opts): extract chomp option.
-	  [Feature #12553]
-
-Sat Nov  5 15:58:24 2016  Sho Hashimoto  <sho-h@netlab.jp>
-
-	* tool/mkconfig.rb: [DOC] add rbconfig documentation.
-
-Sat Nov  5 15:42:52 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/smtp.rb (tlsconnect): support timeout for TLS handshake.
-	  [ruby-core:76893] [Bug #12678]
-
-	* lib/net/protocol.rb (ssl_socket_connect): new method to implement
-	  timeout for TLS handshake.
-
-	* lib/net/http.rb (connect): use Net::Protocol#ssl_socket_connect.
-
-Sat Nov  5 14:17:20 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (brace_body, do_body): since cmdarg_stack is saved in
-	  VALUE val, should restore from the same member.  on big-endian
-	  platforms where VALUE is larger than int, it restored 0 in the
-	  upper word.  [ruby-core:77920] [Bug #12900]
-
-Sat Nov  5 13:52:52 2016  Akinori MUSHA  <knu@iDaemons.org>
-
-	* lib/shellwords.rb (Shellwords#shellsplit): Fix the handling of
-	  the backslash in double quotes to conform to the standard.
-	  [ruby-core:63807] [Bug #10055]
-
-Sat Nov  5 12:14:31 2016  Tanaka Akira  <akr@fsij.org>
-
-	* ext/pathname/pathname.c (Pathname#empty?): New method.
-	  [ruby-core:76404] [Feature #12596] Proposed by John Backus.
-
-Sat Nov  5 11:53:02 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* test/ruby/test_refinement.rb (test_refine_alias_in_subclass):
-	  add a test to check that alias in subclasses can be refined.
-	  [ruby-core:69374] [Bug #11186]
-
-Sat Nov  5 11:20:57 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* cont.c (cont_new): disable optimization if clang's version is
-	  3.8.0.  [ruby-core:77894] [Bug #12893]
-
-Sat Nov  5 10:07:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/ruby/test_file.rb (TestFile#test_stat): fix noatime case.
-	  [ruby-core:77943] [Bug #12903]
-
-Fri Nov  4 17:52:44 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (heap_page_resurrect): do not return tomb_pages when
-	  page->freelist == NULL.
-	  [Bug #12670]
-
-Fri Nov  4 16:31:45 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* util.c (ruby_dtoa): round to even, instead of rounding to
-	  nearest.  [ruby-core:77864] [Bug #12889]
-
-Fri Nov  4 15:31:00 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: Add compiler version message into rbconfig
-	  as RbConfig::CONFIG['CC_VERSION_MESSAGE']. [Feature #12896]
-
-Fri Nov  4 13:03:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* numeric.c (rb_int_digits): Fix exception message
-	  [ruby-core:77502] [Bug #12815]
-
-Fri Nov  4 10:51:16 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/pathname/pathname.c (path_hash): fix unnormalized Fixnum
-	  value bug on mingw/mswin.
-
-Fri Nov  4 10:35:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/fileutils.rb (FileUtils::Entry_#copy): ensure that the
-	  source entry exists first, to fix error for non-existent entry.
-	  [ruby-core:77885] [Bug #12892]
-
-Thu Nov  3 21:45:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* ext/bigdecimal/bigdecimal.c: Import changes from ruby/bigdecimal
-	  repository.
-
-Thu Nov  3 15:01:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c: include sys/sysmacros.h for ArchLinux which deprecated
-	  use of major() and minor() in sys/types.h.
-
-Wed Nov  2 08:45:49 2016  Dmitry Gritsay  <unseductable@gmail.com>
-
-	* doc/extension.rdoc: set ANYARGS as arguments for func1 and func2.
-
-	* doc/extension.rdoc: mention the exception object which is passed
-	  to func2 as the second argument.  [Fix GH-1471]
-
-Wed Nov  2 07:34:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (rb_num_coerce_bit): enable bit operations with
-	  coercing by non-integer object.  [ruby-core:77783] [Bug #12875]
-
-Tue Nov  1 01:31:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (ac_cv_func_round): round(3) in x86_64-w64-mingw32
-	  is not accurate in an edge case.  [ruby-core:77794] [Bug #12878]
-
-Mon Oct 31 17:36:04 2016  Code Ahss  <aycabta@gmail.com>
-
-	* test/test_forwardable.rb (TestForwardable#test_on_private_method):
-	  add test for [Bug #12782] [Bug #12840]
-
-Mon Oct 31 11:08:51 2016  Samuel Williams  <samuel.williams@oriontransfer.co.nz>
-
-	* lib/uri/generic.rb (URI::Generic#merge): merge merge0.
-	  [GH-1469]
-
-Sun Oct 30 15:32:43 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update
-	  rubygems to 2.6.8.
-	  Release note of 2.6.8: https://github.com/rubygems/rubygems/commit/9fb8880976f5ab998912898b091d88aa10eb1d4a
-
-Sun Oct 30 06:39:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/windows_1254.c: Fix typo. Reported by k-takata at
-	  https://github.com/k-takata/Onigmo/commit/ceb59cc. Thanks!
-
-Sat Oct 29 19:59:37 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (cond0): !-operator is a method call, no warning for
-	  literal in condition.  [ruby-core:77801] [Bug #12881]
-
-Sat Oct 29 10:09:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_compile_each): turn flip-flop in a not-operator
-	  into a boolean value.  fix up r56315
-
-Sat Oct 29 09:39:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (vm_call0_body): follow the original class, not to
-	  loop the prepended module.  [ruby-core:77784] [Bug #12876]
-
-Sat Oct 29 00:14:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enc/trans/windows-1255-tbl.rb: update mapping from 0xCA to
-	  U+05BA.  [Feature #12877]
-
-Fri Oct 28 23:22:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enc/depend: extract transcode_tblgen method calls for libraries
-	  loaded by dynamically generated names, in single_byte.trans.
-
-Fri Oct 28 16:05:03 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* insns.def (opt_case_dispatch): extract float value only if the
-	  Float method is not redefined.
-
-Fri Oct 28 15:58:16 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h (RB_OBJ_BUILTIN_TYPE): special-const safe
-	  BUILTIN_TYPE.
-
-Fri Oct 28 15:20:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* complex.c (id_finite_p, id_infinite_p, id_rationalize, id_PI):
-	  initialize static IDs.
-
-	* complex.c (FINITE_TYPE_P): extract predicate.
-
-	* complex.c (rb_complex_finite_p, rb_complex_infinite_p): use
-	  dedicated predicates instead of switch by TYPE.
-
-Thu Oct 27 23:28:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_integer_type_p): turn into macro to help
-	  clang based on old gcc to eliminate CSE.
-
-Thu Oct 27 16:33:47 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* tool/redmine-backporter.rb (rel): check the exception and show right
-	  message.
-
-Thu Oct 27 14:57:33 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/socket/lib/socket.rb (UDPSocket#recvfrom_nonblock): [DOC] Remove
-	  a false statement "If _maxlen_ is omitted, its default value is
-	  65536." maxlen, the first parameter, cannot be omitted as the method
-	  signature indicates. This hasn't changed ever since it was first
-	  implemented.
-
-Thu Oct 27 09:42:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_convert_to_integer): convert a fixable float to a
-	  fixnum directly without the conversion method, as well as bignum
-	  case.
-
-	* object.c (rb_convert_to_integer): should not drop the converted
-	  string.
-
-Wed Oct 26 17:09:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_intern): use prefixed version macro
-	  RUBY_CONST_ID_CACHE.
-
-Wed Oct 26 11:28:25 2016  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* NEWS: added several entries which (if I remember correctly) are
-	  added in a year.
-
-Tue Oct 25 12:54:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (mnew_internal): follow the original class, not to loop
-	  the prepended module.  [ruby-core:77591] [Bug #12832]
-
-Mon Oct 24 10:52:17 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/lib/test/unit.rb (Test::Unit::Parallel#deal): update the
-	  job status after a task finished, to show idling workers.
-
-Mon Oct 24 10:51:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* complex.c (Init_Complex): undefine methods inherited from
-	  Comparable, because Complex does not have <=> method.
-	  [Bug #12866]
-
-	* class.c (rb_undef_methods_from): undefine methods defined in
-	  super from klass.
-
-Mon Oct 24 10:19:44 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* complex.c (Init_Complex): undefine Complex#clamp, which does not
-	  work like other Comparable methods, because Complex does not
-	  have <=> method.  patched by Tim Peters <zomg.tim AT gmail.com>
-	  in [ruby-core:77720].  [Bug #12866]
-
-Sun Oct 23 11:41:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/encoding.h: include "ruby/ruby.h" explicitly for
-	  enum ruby_fl_type and VALUE.
-
-Sat Oct 22 23:33:55 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (reg_compile_gen): always append error message to the
-	  error buffer.
-
-Sat Oct 22 22:33:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (num_funcall1): check recursion by inverse pair, to
-	  fix fake infinite recursion.  [ruby-core:77713] [Bug #12864]
-
-Sat Oct 22 18:52:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_hash_compact_bang): should return nil if no elements
-	  is deleted.  [ruby-core:77709] [Bug #12863]
-
-Sat Oct 22 10:28:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (DLDFLAGS): fallback to LDFLAGS.
-	  [ruby-core:72444] [Bug #11863]
-
-	* configure.in (LIBRUBY_DLDFLAGS): fallback to DLDFLAGS.
-
-	* configure.in (RUBY_APPEND_OPTION, RUBY_PREPEND_OPTION): expand
-	  the option to be appended/prepended when matching, as well as
-	  RUBY_APPEND_OPTIONS and  RUBY_PREPEND_OPTIONS.
-
-Sat Oct 22 09:52:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (setup_args): duplicate splatting array if more
-	  arguments present to obey left-to-right execution order.
-	  [ruby-core:77701] [Bug# 12860]
-
-Fri Oct 21 16:44:44 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (do_opendir): retry after GC when the limit for open file
-	  descriptors reached.
-
-Fri Oct 21 16:06:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (open_load_file): retry after GC when the limit for open
-	  file descriptors reached.
-
-Fri Oct 21 11:34:17 2016  Pascal Schmid  <Lechindianer@users.noreply.github.com>
-
-	* string.c (rb_str_sub, rb_str_gsub): [DOC] 'backlash' should read
-	  'backslash'.  [Fix GH-1461]
-
-Thu Oct 20 17:02:56 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/uri/common.rb: added documentation for deprecated method.
-	  [Misc #11960][ruby-core:72733][ci skip]
-
-Thu Oct 20 16:57:23 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/digest/digest.c: Add documentation for Digest.
-	  [Feature #10452][ruby-core:66001][ci skip]
-	  * remove HMAC from list of digest algorithms,
-	  * add MD5 in list of digest algorithms,
-	  * add information about writing a C digest implementation using Digest::Base,
-	  * add documentation for Digest::Base public methods.
-	* ext/digest/md5/md5init.c: add examples for MD5.
-	* ext/digest/rmd160/rmd160init.c: add examples for Digest::RMD160.
-	* ext/digest/sha1/sha1init.c: add examples for Digest::SHA1.
-
-Thu Oct 20 16:19:51 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/open-uri.rb: Improved documentation grammar for
-	  open-uri#open option. [Misc #11329][ruby-core:69868][ci skip]
-
-Wed Oct 19 21:48:40 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* NEWS: mention refinements with Kernel#send and
-	  BasicObject#__send__.  [Feature #11476]
-
-Wed Oct 19 17:02:15 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_call_opt_send): enable refinements with
-	  Kernel#send and BasicObject#__send__.  [Feature #11476]
-
-Wed Oct 19 14:22:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* basictest/runner.rb: do not clobber the option by --run-opt with
-	  RUBYOPT.  reported by Allen Hewes <rallenh AT hotmail.com>.
-
-Wed Oct 19 00:09:06 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* addr2line.c (parse_debug_line_cu): boundary checks for
-	  compressed debug sections.  [ruby-dev:49840] [Bug #12850]
-
-Tue Oct 18 16:36:40 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (DLDFLAGS): append --compress-debug-sections=zlib
-	  if available, which reduces the size of LIBRUBY_SO by half or
-	  more.
-
-Mon Oct 17 16:20:37 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/configure.bat: add option to enable/disable to install
-	  static ruby library.  defaulted to "no".  [Feature #12845]
-
-	* configure.in (install-static-library): add option to enable/
-	  disable to install static ruby library.  defaulted to "no" if
-	  enable-shared.  [Feature #12845]
-
-	* tool/rbinstall.rb (local-arch-lib): respect the option.
-
-Sun Oct 16 15:09:06 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/windows_1254.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for Windows-1254.
-
-Sat Oct 15 14:17:05 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_args.c (refine_sym_proc_call): search and call method with
-	  refinements.
-
-	* vm_args.c (vm_caller_setup_arg_block): enable refinements when
-	  enabled in the caller.  [Feature #9451]
-
-Sat Oct 15 00:54:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (proc_exec_cmd): use UTF-8 version aspawn.
-	  [ruby-dev:49838] [Bug #12841]
-
-Fri Oct 14 22:26:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse/kwargs.rb (OptionParser#define_by_keywords):
-	  [EXPERIMENTAL] extract command line option definitions from the
-	  information of keyword arguments.
-
-Fri Oct 14 18:27:18 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* object.c: Improve documentation for Float conversion.
-	  [ruby-core:71661][Bug #11736][ci skip]
-
-Fri Oct 14 18:00:20 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/logger.rb: Improve Logger.new option documentation.
-	  [Feature #12803][ruby-core:77467]
-
-Fri Oct 14 17:20:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (make_switch, parse_in_order): unify underscores
-	  to hyphens.
-
-Fri Oct 14 10:48:37 2016  Eric Wong  <e@80x24.org>
-
-	* lib/webrick/utils.rb (TimeoutHandler): use monotonic clock
-	  (watch): ditto
-
-Thu Oct 13 19:41:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (copy_stream_body): use IO to write to copy to duplex IO.
-	  http://twitter.com/knu/status/786505317974585344
-
-Thu Oct 13 17:05:57 2016  Dwain Faithfull  <dwfaithfull@gmail.com>
-
-	* hash.c (rb_hash_compact, rb_hash_compact_bang): Removes nil
-	  values from the original hash, to port Active Support behavior.
-	  [Feature #11818]
-
-Thu Oct 13 11:35:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (rb_ary_sort_bang, rb_ary_sort, rb_ary_sort_by_bang):
-	  [DOC] describe that sort may not be stable.
-
-	* enum.c (enum_sort, enum_sort_by): ditto.
-
-Thu Oct 13 11:31:40 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/rexml/xpath/test_text.rb (test_ancestors): Array#sort may
-	  not be stable.  [ruby-core:76088] [Bug #12509]
-
-	* test/rss/test_maker_{0.9,1.0,2.0}.rb (test_items): ditto.
-
-Thu Oct 13 10:37:31 2016  Eric Wong  <e@80x24.org>
-
-	* doc/extension.rdoc: wording fix
-
-Thu Oct 13 00:39:08 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/ruby/test_array.rb (test_sort_bang_with_freeze): make a
-	  clone to copy a <=> singleton method, instead of dup.  which
-	  element will be called is not predictable.
-	  [ruby-core:76088] [Bug #12509]
-
-Thu Oct 13 00:21:27 2016  Simon Soriano  <simon0191@gmail.com>
-
-	* doc/extension.rdoc: Replace "You can defined hooked variables"
-	  with "You can define hooked variables". [Fix GH-1460]
-
-Wed Oct 12 21:05:50 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ruby.c (open_load_file): revert r56385.  it introduced incompatibility
-	  about `DATA.binmode?`.
-
-Wed Oct 12 15:24:53 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* tool/downloader.rb: Removed verification of gem certification.
-	  Because signed gem is not working on rubygems ecosystem.
-	* tool/gem-unpack.rb: ditto.
-
-Tue Oct 11 22:08:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (prep_io): fix typo of struct member name.
-	  [ruby-core:77550] [Bug #12829]
-
-Tue Oct 11 16:45:24 2016  Tanaka Akira  <akr@fsij.org>
-
-	* lib/uri/generic.rb (URI.find_proxy): Add an optional argument, env.
-
-Tue Oct 11 16:38:32 2016  Tanaka Akira  <akr@fsij.org>
-
-	* lib/pp.rb (String#pretty_print): Defined to print a string as
-	  multiple lines.
-	  [ruby-core:76800] [Feature#12664] proposed by Petr Chalupa.
-
-Mon Oct 10 15:22:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (open_load_file): bind the open fd to an IO instance
-	  before waiting FIFO, not to leak the fd if interrupted.
-
-Mon Oct 10 12:40:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (open_load_file): compare with EXEEXT instead of hard
-	  coded name, and do not match with mere EXEEXT.
-
-	* ruby.c (open_load_file): open in binary mode if available, as
-	  parser deals with EOLs.
-
-	* io.c (prep_io): reduce isatty call (and its system call) on
-	  Cygwin.
-
-Sun Oct  9 23:05:53 2016  Prathamesh Sonpatki  <csonpatki@gmail.com>
-
-	* array.c, class.c: Fixed documentation where Fixnum was referred
-	  directly to use Integer, as Fixnum and Bignum are now unified
-	  into Integer and direct usage is deprecated.  [Fix GH-1459]
-
-Sun Oct  9 11:37:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_core.h (VM_ASSERT): stringify expr here before expansion in
-	  RUBY_ASSERT_WHEN.
-
-Sat Oct  8 10:54:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/-test-/memory_status/memory_status.c (read_status): use
-	  Win32 GetProcessMemoryInfo API.
-
-	* ext/-test-/memory_status/memory_status.c: get memory sizes by
-	  mach task_info system call.
-
-Sat Oct  8 09:06:55 2016  Aurelien Jacobs  <aurel@gnuage.org>
-
-	* lib/logger.rb (Logger::Period#next_rotate_time): fix monthly log
-	  rotate when DST is applied during a month of 31 days.
-	  [Fix GH-1458]
-
-Fri Oct  7 20:21:39 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (gc_prof_setup_new_record): fix the condition to get
-	  rusage.
-
-	* gc.c (gc_profile_dump_major_reason): remove undefined flags.
-
-Fri Oct  7 19:18:33 2016  Masaki Suketa <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/*.c, ext/win32ole/win32ole.h: use RB_INT2FIX instead of
-	  INT2FIX, and so on.
-
-Fri Oct  7 14:18:40 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* basictest/test.rb: Adjust spaces in class declarations
-	  with inheritance. [fix GH-1227] Patch by @adrfer
-	* lib/irb/*: ditto.
-	* lib/prime.rb: ditto.
-	* lib/shell/builtin-command.rb: ditto.
-	* object.c: ditto.
-	* sample/*.rb: ditto.
-	* test/-ext-/method/test_arity.rb: ditto.
-
-Thu Oct  6 17:29:44 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* load.c (rb_require_safe): SyntaxError created by the parser just
-	  has the message and needs to set up the backtrace.
-	  [ruby-core:77491] [Bug #12811]
-
-	* load.c (rb_load_internal0): load/require is not the main
-	  script.
-
-Thu Oct  6 13:35:15 2016  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* enum.c: [DOC] Improve doc [ci-skip]
-
-Thu Oct  6 11:38:14 2016  Chris Jones  <chris@christopherjones.us>
-
-	* ext/readline/extconf.rb: Update error message with correct words.
-	  [fix GH-1453][ci skip] Patch by @magikid
-
-Thu Oct  6 11:01:49 2016  Tieg Zaharia  <tieg.zaharia@gmail.com>
-
-	* lib/uri/common.rb (WEB_ENCODINGS_): Update URI::WEB_ENCODINGS_
-	  hash, and fix documented command to grab it.  [Fix GH-1430]
-
-Thu Oct  6 10:37:13 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* enum.c: Add reduce/inject alias note.
-	  [fix GH-1400][ci skip] Patch by @getaaron
-
-Thu Oct  6 10:30:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (update_coverage): check coverage values, and ignore
-	  non-fixnum values.
-
-Thu Oct  6 09:19:21 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (fptr_finalize): use dedicated macro RB_INTEGER_TYPE_P.
-
-Wed Oct  5 18:02:44 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/net/http/response.rb: Improve document readability.
-	  [fix GH-1411][ci skip] Patch by @stz-seongheon
-
-Wed Oct  5 15:43:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* node.c (dump_node): flatten statements in NODE_BLOCK.
-
-Wed Oct  5 14:27:36 2016  Byron Bowerman  <me@bm5k.com>
-
-	* range.c: Add docs for max/min behavior with exclusive range.
-	  [fix GH-1433][ci skip] Patch by @BM5k
-
-Wed Oct  5 12:57:21 2016  Richard Schneeman  <richard.schneeman+foo@gmail.com>
-
-	* ext/socket/*.c: Add proper require for example to work.
-	  [fix GH-1378][ci skip] Patch by @schneems
-
-Wed Oct  5 11:47:19 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* io.c: Fixed equivalent ruby code with core implemention.
-	  [fix GH-1429][ci skip] Patch by @sos4nt
-
-Wed Oct  5 11:36:21 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/delegate.rb: Added missing spaces and Removed needless spaces.
-	  [fix GH-1454][ci skip] Patch by @bogdanvlviv
-
-Wed Oct  5 03:24:55 2016  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* enum.c: Make Enumerable#chunk with no block return
-	  an Enumerator [#2172]
-
-Wed Oct  5 01:19:45 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* internal.h (ST2FIX): new macro to convert st_index_t to Fixnum.
-	  a hash value of Object might be Bignum, but it causes many troubles
-	  especially the Object is used as a key of a hash.  so I've gave up
-	  to do so.
-
-	* array.c (rb_ary_hash): use above macro.
-
-	* bignum.c (rb_big_hash): ditto.
-
-	* hash.c (rb_obj_hash, rb_hash_hash): ditto.
-
-	* numeric.c (rb_dbl_hash): ditto.
-
-	* proc.c (proc_hash): ditto.
-
-	* re.c (rb_reg_hash, match_hash): ditto.
-
-	* string.c (rb_str_hash_m): ditto.
-
-Tue Oct  4 12:59:44 2016  Koichi ITO  <koic.ito@gmail.com>
-
-	* array.c (rb_ary_dig): [DOC] update an example of error message
-	  by Array#dig, because of Integer Unification.  [Fix GH-1455]
-
-Tue Oct  4 09:55:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c (BigDecimal_div2): need more room
-	  for precision to round.  [ruby-core:77475] [Bug #12805]
-
-Tue Oct  4 06:05:46 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regcomp.c (onig_print_compiled_byte_code): make the shown address
-	  look relative.
-
-Tue Oct  4 05:53:11 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regexec.c (OPCODE_EXEC_HOOK): op is p-1 because p is already
-	  incremented.
-
-	* regexec.c (OPCODE_EXEC_HOOK): use the exact end address.
-
-	* regexec.c (match_at): don't call OPCODE_EXEC_HOOK in CASE()
-	  when it comes from goto fail.
-
-Mon Oct  3 21:24:41 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* NEWS: mention Readline.quoting_detection_proc{,=}.
-
-Mon Oct  3 21:19:46 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* lib/logger.rb: [DOC] Fix default value of shift_age.
-
-Mon Oct  3 17:20:05 2016  George Brocklehurst  <ruby@georgebrock.com>
-
-	* ext/readline/readline.c (readline_s_set_quoting_detection_proc):
-	  support rl_char_is_quoted_p.  [Feature #12659]
-
-	* ext/readline/readline.c (readline_s_get_quoting_detection_proc):
-	  ditto.
-
-Sun Oct  2 08:22:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (RB_INT2FIX, RB_LONG2FIX): prefix RB to
-	  global symbols to get rid of name conflicts with other headers.
-
-Sun Oct  2 07:51:20 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_hash_m): hash values may be negative.
-
-Sun Oct  2 02:04:12 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* string.c (rb_str_hash_m): st_index_t is not guaranteed as the same
-	  size with int, and of course also not guaranteed the value can be
-	  Fixnum.
-
-Sun Oct  2 02:03:06 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* numeric.c (rb_fix2str): detect unnormalized Fixnum value.
-
-Sat Oct  1 23:08:47 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/date/date_parse.c (date_zone_to_diff): it's nonsence and really
-	  harm that to use unary minus operator with unsigned value.
-	  get rid of test failures introduced at r56312.
-
-Sat Oct  1 22:17:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_compile_each): move numeric literal range
-	  optimization from fixup_nodes() in parse.y.
-
-Sat Oct  1 19:19:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (compile_flip_flop): simplify generated code.
-
-	* compile.c (compile_branch_condition): flip-flop can appear only
-	  in conditional expressions.
-
-Sat Oct  1 02:02:02 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (poll_child_status): rb_w32_wait_events_blocking() sets
-	  errno internally, then should not set it here.
-
-Fri Sep 30 19:06:21 2016  Anton Davydov  <mail@davydovanton.com>
-
-	* lib/uri/http.rb: Documentation and code style improvements.
-	* test/uri/test_http.rb: Added test for coverage.
-	  [fix GH-1427][ruby-core:77255][Misc #12756]
-
-Fri Sep 30 18:43:20 2016  Jason Yeo  <jason@jasonyeo.me>
-
-	* doc/syntax/control_expressions.rdoc: Add missing 'as'
-	  [ci skip][fix GH-1448] Patch by @jsyeo
-
-Thu Sep 29 23:38:04 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* lib/yaml/store.rb (YAML::Store#dump): use table argument instead
-	  of @table directly.
-
-Thu Sep 29 22:22:22 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* lib/yaml/store.rb (YAML::Store#initialize): Fix arguments.
-	  [ruby-dev:49821] [Bug #12800]
-
-	* test/yaml/test_store.rb: Add tests from test/test_pstore.rb.
-
-	* test/yaml/test_store.rb (YAMLStoreTest#test_with_options): Add options test.
-
-	* lib/yaml/store.rb (YAML::Store#dump): Revert to to_yaml.
-
-	* lib/yaml/store.rb (YAML::Store#empty_marshal_data): Use to_yaml with options.
-
-	* lib/yaml/store.rb (YAML::Store#empty_marshal_checksum): Use CHECKSUM_ALGO.
-
-Thu Sep 29 19:34:23 2016  Pete Higgins  <pete@peterhiggins.org>
-
-	* thread_sync.c (rb_queue_pop, rb_szqueue_push, rb_szqueue_pop):
-	  Document exception types, ThreadError, raised by Queue and
-	  SizedQueue.  [Fix GH-1451]
-
-Thu Sep 29 19:21:02 2016  Pete Higgins  <pete@peterhiggins.org>
-
-	* thread_sync.c (Init_thread_sync): Remove confusing doc comments,
-	  which are picked up by rdoc unexpectedly, from Queue and
-	  SizedQueue.  [Fix GH-1450]
-
-Wed Sep 28 23:14:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/pstore.rb (PStore::CHECKSUM_ALGO): find available hashing
-	  algorithm for checksum.  MD5 is not available in FIPS mode.
-	  [Feature #6943]
-
-Wed Sep 28 13:00:25 2016  ksss  <co000ri@gmail.com>
-
-	* signal.c (sig_signame): [DOC] Add documentation in the case of
-	  return nil.  [Fix GH-1449]
-
-Wed Sep 28 10:43:27 2016  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* .travis.yml: delete comments. They were outdated.
-
-Wed Sep 28 09:57:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update
-	  rubygems to 2.6.7.
-	  Release note of 2.6.7: https://github.com/rubygems/rubygems/commit/60f35bd1d2359fc30301d2d4cd72bc6833e8d12a
-
-Wed Sep 28 00:21:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (rb_warning_s_warn): the argument must be an
-	  ASCII-compatible string.  [ruby-core:77430] [Bug #12793]
-
-Tue Sep 27 23:22:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (symbol, dsym, parser_set_number_literal): set state to
-	  ENDARG, so that `do` after a literal should be `do_block` and
-	  bound to the outer method.  [ruby-core:72482] [Bug #11873]
-
-	* parse.y (parse_ident): revert r56198.
-
-	* parse.y (warn_balanced): the state of symbol and numeric
-	  literals is now EXPR_ENDARG, do not exclude it.
-
-Tue Sep 27 22:59:42 2016  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* NEWS: news about Warning.warn.
-
-Tue Sep 27 18:10:18 2016  Jeremy Evans <code@jeremyevans.net>
-
-	* error.c: This makes all warnings raised call Warning.warn, which
-	  by default does the same thing it does currently
-	  (rb_write_error_str).  You can override Warning.warn to change
-	  the behavior. [ruby-core:75016] [Feature #12299]
-
-Tue Sep 27 17:35:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* iseq.c (iseqw_s_compile_file): deal with syntax error as well as
-	  compile, and should not abort when rescued.
-
-Tue Sep 27 12:07:17 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/cgi/cookie.rb (parse): don't allow , as a separator. [Bug #12791]
-
-	* lib/webrick/cookie.rb (parse): ditto.
-
-Mon Sep 26 21:37:21 2016  Akinori MUSHA  <knu@iDaemons.org>
-
-	* man/erb.1, man/irb.1, man/ri.1, man/ruby.1: Remove Ns before
-	  punctuation.
-
-Mon Sep 26 16:23:49 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/stringio/stringio.c (strio_seek): Avoid signed integer overflow.
-	  It's not harmful in practice here, but is still undefined behavior.
-
-	* ext/stringio/stringio.c (strio_extend): Check that the new length does
-	  not exceed LONG_MAX. This fixes the invalid write on the overflow.
-
-	* test/stringio/test_stringio.rb (test_write_integer_overflow): Add a
-	  test case for the above fix in strio_extend().
-
-Mon Sep 26 15:43:34 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* eval_intern.h (TH_PUSH_TAG): Initialize struct rb_vm_tag::tag with
-	  Qundef rather than 0 which is equal to Qfalse. Since Kernel#throw(obj)
-	  searches a tag with rb_vm_tag::tag == obj, throw(false) can
-	  accidentally find an unrelated tag which is not created by
-	  Kernel#catch.  [ruby-core:77229] [Bug #12743]
-
-	* test/ruby/test_exception.rb (test_throw_false): Add a test case for
-	  this.
-
-Mon Sep 26 14:36:12 2016  Naotoshi Seo  <sonots@gmail.com>
-
-	* lib/tempfile.rb: provide default basename parameter for
-	  Tempfile.create. [Feature #11965] Patch by Yuki Kurihara
-	* test/test_tempfile.rb: ditto.
-
-Mon Sep 26 14:10:54 2016  Ary Borenszweig  <ary@esperanto.org.ar>
-
-	* string.c (lstrip_offset): add a fast path in the case of single
-	  byte optimizable strings, as well as rstrip_offset.
-	  [ruby-core:77392] [Feature #12788]
-
-Mon Sep 26 12:00:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gems/bundled_gems: update to minitest-5.9.1.
-
-Mon Sep 26 11:50:03 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* tool/rbinstall.rb (gem): Don't install gemspec if no files will be
-	  installed for the gem. This happens when the extension library is not
-	  compiled.
-
-Mon Sep 26 11:06:47 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* string.c (enc_strlen, rb_enc_strlen_cr): Avoid signed integer
-	  overflow. The result type of a pointer subtraction may have the same
-	  size as long. This fixes String#size returning an negative value on
-	  i686-linux environment:
-
-	    str = "\x00" * ((1<<31)-2))
-	    str.slice!(-3, 3)
-	    str.force_encoding("UTF-32BE")
-	    str << 1234
-	    p str.size
-
-Sun Sep 25 22:48:06 2016  namusyaka  <namusyaka@gmail.com>
-
-	* lib/erb.rb (ERB::Compiler::TrimScanner#stag): The :stag accessor
-	  has already been available because it is defined in parent
-	  Scanner class.  [Fix GH-1445]
-
-Sun Sep 25 19:21:26 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* node.c (dump_array): remove duplicate header of NODE_ARRAY/
-	  NODE_VALUES.
-
-Sat Sep 24 22:26:20 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (extract_makefile, extmake, configuration): store
-	  extra libraries to be installed.
-
-	* tool/rbinstall.rb (ext-arch): install extra libraries.
-
-	* ext/zlib/extconf.rb: install zlib if built.
-
-Sat Sep 24 14:24:55 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* spec/README: update URL.
-
-Sat Sep 24 11:28:22 2016  Koichi ITO  <koic.ito@gmail.com>
-
-	* fix typos, "a" before "Integer" to "an".  [Fix GH-1438]
-
-Sat Sep 24 10:19:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/misc/test_ruby_mode.rb (assert_indent): since write-region
-	  in Emacs 25.1 no longer displays the "Wrote file" message, shows
-	  the explicit message to check if successfully finished.
-	  [ruby-core:77355] [Bug #12785]
-
-	* test/misc/test_ruby_mode.rb (EXPR_SAVE): use a numeric prefix
-	  argument of 0, not to make the previous version into a backup
-	  file, instead of backup-inhibited.
-
-	* test/misc/test_ruby_mode.rb (run_emacs): always save the buffer
-	  if modified.
-
-Fri Sep 23 23:57:40 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_method.c (make_method_entry_refined): fix wrong use of ||.
-
-Fri Sep 23 21:38:58 2016  Akinori MUSHA  <knu@iDaemons.org>
-
-	* tool/mdoc2man.rb (Mdoc2Man#parse_macro): Add support for the
-	  `Lk` macro.
-
-	* tool/mdoc2man.rb (Mdoc2Man#shift_arg): A new function to extract
-	  a possibly quoted argument.
-
-Fri Sep 23 20:36:05 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_mod_refine): refine modules as well.
-	  [ruby-core:76199] [Feature #12534]
-
-Fri Sep 23 20:19:09 2016  Akinori MUSHA  <knu@iDaemons.org>
-
-	* man/ruby.1: Update the paragraphs in "Rich Libraries" which
-	  included a dead link.
-
-Fri Sep 23 20:05:27 2016  Akinori MUSHA  <knu@iDaemons.org>
-
-	* man/ruby.1, man/erb.1, man/irb.1, man/ri.1: Use the `Lk` macro
-	  for hyperlinks, which has been available since mdocml 1.5.1
-	  (released more than seven years ago).
-
-Fri Sep 23 15:47:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/forwardable.rb (_delegator_method): allow private methods to
-	  be delegated, with warnings.  [ruby-core:77341] [Bug #12782]
-
-Fri Sep 23 12:15:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_peephole_optimize): enable tail call
-	  optimization inside a conditional block.
-
-Thu Sep 22 13:00:04 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* gc.c (gc_start_internal): [DOC] methods without arguments
-	  like r56194. [Bug #12777]
-
-Wed Sep 21 17:43:53 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* process.c (InitVM_process): Support CLOCK_MONOTONIC_RAW_APPROX,
-	  CLOCK_UPTIME_RAW, and CLOCK_UPTIME_RAW_APPROX which are introduced
-	  by macOS 10.12.
-
-Wed Sep 21 13:47:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (brace_body, do_body): preserve cmdarg_stack so that
-	  `do` after cmdarg in a block should be `do_block` and bound to
-	  the outer method.  [ruby-core:72482] [Bug #11873]
-
-	* parse.y: `do` after cmdarg in parentheses should be `do_block`
-	  and bound to the outer method.  [ruby-core:72482] [Bug #11873]
-
-	* parse.y (brace_body, do_body): extract block bodies.
-
-Tue Sep 20 23:02:50 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (gc_start_internal): [DOC] add ObjectSpace.garbage_collect
-	  and fix GC#garbage_collect.  [Bug #12777]
-
-Tue Sep 20 21:24:01 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* doc/extension.ja.rdoc: translate r56189 (rb_gc_adjust_memory_usage).
-
-Tue Sep 20 17:52:28 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* gems/bundled_gems: Update rake-11.3.0
-
-Tue Sep 20 16:52:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (rb_gc_adjust_memory_usage): notify memory usage to the GC
-	  engine by extension libraries, to trigger GC.  [Feature #12690]
-
-Mon Sep 19 17:05:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (Init_Numeric), bignum.c (Init_Bignum): deprecate
-	  Fixnum and Bignum.  this may be reverted after previews.
-	  [Feature #12739]
-
-Mon Sep 19 10:36:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enumerator.c (lazy_init_yielder): directly call stored functions.
-	  [Feature #6183]
-
-	* enumerator.c (lazy_add_method): create lazy enumerator which
-	  uses lazy_init_yielder().
-
-Sun Sep 18 22:48:54 2016  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rss/rss.rb (RSS::BaseModel): Remove needless codes.
-	  [Bug #12773][ruby-dev:49813]
-	  Reported by Kazuhiro NISHIYAMA. Thanks!!!
-
-Sun Sep 18 19:23:47 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* lib/sync.rb: Fix NameError when error.
-
-Sat Sep 17 22:46:02 2016  Koichi ITO  <koic.ito@gmail.com>
-
-	* vm_insnhelper.c (vm_throw_start): Remove too much ";"
-	  [fix GH-1432]
-
-Sat Sep 17 19:19:06 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* test/openssl/test_ssl.rb (test_ctx_options): Fix test failure on
-	  Ubuntu 16.04. The fix in r56147 was incomplete. This is a cherry-pick
-	  of the commit b039f3e268c2 at ruby/openssl.
-
-Sat Sep 17 10:49:35 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* doc/extension.ja.rdoc: translate r56130 (rb_check_arity).
-
-Sat Sep 17 02:40:52 2016  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* ext/objspace/objspace_dump.c: Fix stream processing support for heap
-	  dumps. Full heap dumps should use JSON lines (http://jsonlines.org)
-	  so that we can process very large heaps without loading the entire
-	  heap dump in to memory at once.
-
-Fri Sep 16 22:10:31 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/openssl/ossl_ssl.c (ssl_npn_select_cb_common): Fix compile error
-	  with old version of fcc (Fujitsu C Compiler) on Solaris 10.
-	  [Bug #12769] [ruby-dev:49809]
-
-Fri Sep 16 21:28:25 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* internal.h (MAYBE_UNUSED): The fallback definition is needed.
-	  Fix compile error with some non-GCC compilers such as
-	  Oracle Solaris Studio 12.3 on Solaris 10.
-	  [Bug #12767] [ruby-dev:49807]
-
-	* internal.h (WARN_UNUSED_RESULT): ditto.
-
-Fri Sep 16 21:19:51 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* hash.c (each_pair_i_fast): Fix compile error with old version of
-	  fcc on Solaris 10. [Bug #12768] [ruby-dev:49808]
-
-Fri Sep 16 19:46:05 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/Makefile.sub (config.h): fixed compile error with VC introduced
-	  by previous commit.
-
-Fri Sep 16 14:54:34 2016  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* internal.h (WARN_UNUSED_RESULT): moved to configure.in, to
-	  actually check its availability rather to check GCC's version.
-
-	* configure.in (WARN_UNUSED_RESULT): moved to here.
-
-	* configure.in (RUBY_FUNC_ATTRIBUTE): change function declaration
-	  to return int rather than void, because it makes no sense for a
-	  warn_unused_result attributed function to return void.
-
-	  Funny thing however is that it also makes no sense for noreturn
-	  attributed function to return int.  So there is a fundamental
-	  conflict between them.  While I tested this, I confirmed both
-	  GCC 6 and Clang 3.8 prefers int over void to correctly detect
-	  necessary attributes under this setup.  Maybe subject to change
-	  in future.
-
-	* internal.h (UNINITIALIZED_VAR): renamed to MAYBE_UNUSED, then
-	  moved to configure.in for the same reason we move
-	  WARN_UNUSED_RESULT.
-
-	* configure.in (MAYBE_UNUSED): moved to here.
-
-	* internal.h (__has_attribute): deleted, because it has no use now.
-
-	* string.c (rb_str_enumerate_lines): refactor macro rename.
-
-	* string.c (rb_str_enumerate_bytes): ditto.
-
-	* string.c (rb_str_enumerate_chars): ditto.
-
-	* string.c (rb_str_enumerate_codepoints): ditto.
-
-	* thread.c (do_select): ditto.
-
-	* vm_backtrace.c (rb_debug_inspector_open): ditto.
-
-	* vsnprintf.c (BSD_vfprintf): ditto.
-
-Fri Sep 16 14:35:55 2016  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* ChangeLog (add-log-time-format): Not exactly sure when but
-	  recently (25.x maybe), emacs changed its API to take optional
-	  two arguments.  We have to follow that.
-
-Fri Sep 16 06:43:25 2016  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* lib/uri/generic.rb (def check_password): don't include bad password
-	  in URI exception output
-
-	* test/uri/test_generic.rb (def test_set_component): test for behavior
-
-Thu Sep 15 21:40:03 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* doc/extension.ja.rdoc: Fix file name.
-
-Thu Sep 15 00:59:30 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* benchmark/: add vnmakarov's benchmarks around hash [ruby-core:75265]
-
-Wed Sep 14 07:02:31 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* hash.c (each_pair_i_fast): use rb_yield_values2 to avoid var args.
-
-Tue Sep 13 21:32:54 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* string.c (STR_HEAP_SIZE, RESIZE_CAPA_TERM, str_new0, rb_str_buf_new,
-	  str_shared_replace, rb_str_init, str_make_independent_expand,
-	  rb_str_resize): Avoid overflow by casting the length to size_t. size_t
-	  should be able to represent LONG_MAX+termlen.
-
-	* string.c (rb_str_modify_expand): Check that the new length is in the
-	  range of long before resizing. Also refactor to use RESIZE_CAPA_TERM
-	  macro.
-
-	* string.c (str_buf_cat): Fix so that it does not create a negative
-	  length String. Also fix the condition for 'string sizes too big', the
-	  total length can be up to LONG_MAX.
-
-	* string.c (rb_str_plus): Check the resulting String length does not
-	  exceed LONG_MAX.
-
-	* string.c (rb_str_dump): Fix integer overflow. The dump result will be
-	  longer then the original String.
-
-Tue Sep 13 21:30:53 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* gc.c (heap_extend_pages, get_envparam_size, ruby_malloc_size_overflow,
-	  gc_profile_dump_on): Use PRIuSIZE instead of PRIdSIZE as the passed
-	  value is size_t, not ssize_t.
-
-	* iseq.c (get_line_info, rb_iseq_disasm_insn): Ditto.
-
-	* sprintf.c (rb_str_format): Ditto.
-
-	* thread_win32.c (native_thread_create): Ditto.
-
-	* vm.c (get_param): Ditto.
-
-	* ext/objspace/objspace_dump.c (dump_append_string_content,
-	  dump_object): Ditto.
-
-	* ext/socket/raddrinfo.c (host_str, port_str): Ditto.
-
-Tue Sep 13 21:27:35 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* string.c (STR_EMBEDDABLE_P): Renamed from STR_EMBEDABLE_P(). And use
-	  it in more places.
-
-Tue Sep 13 21:23:51 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* README.md: Drop support for BeOS now that Haiku is stable since
-	  2.3.0.
-
-	* README.ja.md: ditto.
-
-Tue Sep 13 21:11:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (STR_EMBEDABLE_P): extract the predicate macro to tell
-	  if the given length is capable in an embedded string, and fix
-	  possible integer overflow.
-
-Tue Sep 13 18:37:08 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_exception.rb: fix thread issues.
-	  * use Queue instead of a local variable for synchronization.
-	  * join created thread to solve leaking threads warning.
-
-Tue Sep 13 16:07:26 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* string.c (rb_str_set_len): The buffer overflow check is wrong. The
-	  space for termlen is allocated outside the capacity returned by
-	  rb_str_capacity(). This fixes r41920 ("string.c: multi-byte
-	  terminator", 2013-07-11).  [ruby-core:77257] [Bug #12757]
-
-	* test/-ext-/string/test_set_len.rb (test_capacity_equals_to_new_size):
-	  Test for this change. Applying only the test will trigger [BUG].
-
-Tue Sep 13 06:03:34 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* common.mk (benchmark): fix lib path.
-
-Tue Sep 13 00:39:47 2016  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* class.c (singleton_class_of): Copy superclass serial number to
-	  singleton class.  This improves singleton class IMC hit rates.
-	  [Feature #12364] [ruby-core:75425]
-
-Mon Sep 12 13:46:23 2016  Anton Davydov  <mail@davydovanton.com>
-
-	* lib/uri/mailto.rb: Removed needless `return` and use `.` instead of `::`
-	  with class method.
-	* test/uri/test_mailto.rb: Added tests for coverage.
-	  [fix GH-1426][Misc #12750][ruby-core:77242]
-
-Sun Sep 11 21:30:26 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* NEWS: News about Module.used_modules.
-
-Sun Sep 11 19:06:49 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_write_console): should set written length as the
-	  return value.  [Bug #12748] [ruby-dev:49786]
-
-Fri Sep  9 22:43:29 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* gems/bundled_gems: sort lines.
-
-Fri Sep  9 17:59:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (rb_threadptr_raise): set cause from the called thread,
-	  but not from the thread to be interrupted.
-	  [ruby-core:77222] [Bug #12741]
-
-Fri Sep  9 13:50:05 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* doc/extension.rdoc, doc/extension.ja.rdoc: fix file name.
-	  pointed out by @takkanm in the RubyKaigi talk.
-
-Fri Sep  9 13:14:53 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* News: Announcing update to Unicode version 9.0.0 [ci skip]
-
-Fri Sep  9 10:10:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (rb_const_search): warn with the actual class/module
-	  name which defines the deprecated constant.
-
-	* variable.c (rb_const_search): raise with the actual class/module
-	  name which defines the private constant.
-
-Thu Sep  8 17:47:18 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* array.c (flatten): use rb_obj_class instead of rb_class_of
-	  because rb_class_of may return a singleton class.
-	  [ruby-dev:49781] [Bug #12738]
-
-Thu Sep  8 17:40:15 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/rbinstall.rb (gem): use the bindir of each gemspec instead
-	  of hardcoded 'bin', since rdoc 5.0.0 overrides it.
-
-Thu Sep  8 16:47:03 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_mod_s_used_modules): rename Module.used_refinements to
-	  Module.used_modules.  [Feature #7418] [ruby-core:49805]
-
-Thu Sep  8 14:21:48 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/psych/psych.gemspec, lib/rdoc/rdoc.gemspec: Use file list instead of
-	  git output. It shows warning message when invoke `make install`
-	  [Bug #12736][ruby-dev:49778]
-
-Thu Sep  8 13:41:46 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* insns.def (setclassvariable, setconstant): warn when self is a
-	  refinement.  [Bug #10103] [ruby-core:64143]
-
-Thu Sep  8 11:29:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* hash.c (rb_hash_transform_values, rb_hash_transform_values_bang):
-	  Rename map_v to transform_values.
-	  [Feature #12512] [ruby-core:76095]
-
-	* test/ruby/test_hash.rb: ditto.
-
-Thu Sep  8 10:08:35 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* {ext,test}/openssl: Import Ruby/OpenSSL 2.0.0.beta.2. The full commit
-	  history since v2.0.0.beta.1 can be found at:
-	  https://github.com/ruby/openssl/compare/v2.0.0.beta.1...v2.0.0.beta.2
-
-Thu Sep  8 07:23:34 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rdoc/*, test/rdoc/*: Update rdoc-5.0.0.beta2
-	  Fixed ri parse defect with left-hand matched classes.
-	  https://github.com/rdoc/rdoc/pull/420
-
-Thu Sep  8 01:12:47 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* eval.c (rb_mod_s_used_refinements): new method
-	  Module.used_refinements.  based on the patch by Charlie
-	  Somerville.  [Feature #7418] [ruby-core:49805]
-
-Wed Sep  7 17:50:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/util.h (setenv): remove POSIX-noncompliant
-	  definition with 2 arguments.
-
-Wed Sep  7 17:35:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* unicode/8.0.0/casefold.h, name2ctype.h, unicode/data/8.0.0:
-	  removing directories/files related to Unicode version 8.0.0
-
-Wed Sep  7 17:21:55 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/timeout.rb (Timeout#timeout): add custom error message
-	  argument.  [Feature #11650]
-
-Wed Sep  7 17:13:05 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* common.mk: Updated Unicode version to 9.0.0 [Feature #12513]
-
-	* unicode/9.0.0/casefold.h, name2ctype.h, unicode/data/9.0.0:
-	  new directories/files for Unicode version 9.0.0
-
-Wed Sep  7 16:00:45 2016  Tanaka Akira  <akr@fsij.org>
-
-	* lib/open-uri.rb: Allow http to https redirection.
-	  Note that https to http is still forbidden.
-	  [ruby-core:20485] [Feature #859] by Roman Shterenzon.
-
-Wed Sep  7 14:56:59 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* lib/csv.rb (CSV::{Row,Table}#{each,delete_if}): returns an enumerator
-	  if no block is given. [ruby-core:75346] [Feature #12347]
-
-	* test/csv/test_row.rb: add test for above.
-
-	* test/csv/test_table.rb: ditto.
-
-Wed Sep  7 14:50:01 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* gems/bundled_gems: update to power_assert 0.3.1.
-
-Wed Sep  7 12:16:09 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/psych/*, test/psych/*: Update psych-2.1.1
-	  This version fixed following pull requests.
-	  https://github.com/tenderlove/psych/pull/284
-	  https://github.com/tenderlove/psych/pull/276
-
-Wed Sep  7 11:51:06 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rdoc/*, test/rdoc/*: Update rdoc-5.0.0.beta1
-	  This version is mostly same as r56072. It contains to remove code
-	  for Ruby 1.8
-
-Tue Sep  6 09:23:06 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rdoc/rdoc.gemspec: partly reverted for default gem installer.
-	  upstream configuration is not working on ruby core repository.
-
-Mon Sep  5 19:35:22 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rdoc/*, test/rdoc/*: Update rdoc/rdoc master(f191513)
-	  https://github.com/rdoc/rdoc/blob/master/History.rdoc#423--2016--
-	  https://github.com/rdoc/rdoc/blob/master/History.rdoc#422--2016-02-09
-
-Sun Sep  4 00:17:55 2016  Sho Hashimoto  <sho-h@ruby-lang.org>
-
-	* proc.c: [DOC] fix Object#define_singleton_method and
-	  main.define_method return value. [ci skip]
-
-Sat Sep  3 11:28:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread_pthread.c (ruby_init_stack): check stack bounds even if
-	  get_main_stack succeeded, on the "co-routine" case.
-	  https://github.com/ruby/ruby/commit/53953ee#commitcomment-18887413
-
-Fri Sep  2 16:06:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h (MEMO_V1_SET, MEMO_V2_SET): fix typos.  use the macro
-	  parameter, not the local variable.
-
-Fri Sep  2 00:55:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (timestamp_file): move extmk.rb specific tricks
-	  from lib/mkmf.rb.  keep RUBYCOMMONDIR prefix not to conflict
-	  with a timestamp file in the toplevel.
-
-Thu Sep  1 14:24:16 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (gems): move dirty hacks for bundled gems from
-	  mkmf.rb.
-
-	* lib/mkmf.rb (create_makefile): yield all configuration strings.
-
-Wed Aug 31 17:39:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (create_makefile): make gem.build_complete file
-	  under TARGET_SO_DIR and install it only when the gem build
-	  succeeded.  [ruby-core:77057] [Bug #12681]
-
-Wed Aug 31 15:36:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: move TARGET_SO_DIR stuffs to mkmf.rb.
-
-	* lib/mkmf.rb (create_makefile): create target shared object files
-	  under $(TARGET_SO_DIR) which is $sodir if it is defined with
-	  $extout.  [ruby-core:77058] [Bug #12681]
-
-Wed Aug 31 01:56:55 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* doc/extension.ja.rdoc: [DOC] Fix a typo. [ci skip]
-
-Wed Aug 31 00:52:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: make the gems target directory under the expanded
-	  name.  [ruby-core:77102] [Bug #12714]
-
-Tue Aug 30 15:27:27 2016  Kouhei Yanagita  <yanagi@shakenbu.org>
-
-	* ext/json/lib/json/add/ostruct.rb (OpenStruct.json_create):
-	  Correct documentation, fix the name of values.  [Fix GH-1421]
-
-Tue Aug 30 14:53:34 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* io.c (nogvl_fsync, nogvl_fdatasync): on Windows, just ignore if the
-	  fd is associated to non-disk device.  if call fsync and/or fdatasync
-	  with such fds, it causes Errno::EBADF exception and the behavior is
-	  incompatible with ruby 2.1 and earlier unintentionally introduced.
-
-Tue Aug 30 03:38:35 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* vm_dump.c (backtrace): use rip in the saved context for the case
-	  the SIGSEGV is received when the process is in userland.
-	  Note that ip in the stack should be used if the signal is received
-	  when it is in kernel (when it is calling syscall) [Bug #12711]
-
-Sat Aug 27 10:26:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* array.c (rb_ary_concat_multi): take multiple arguments.  based
-	  on the patch by Satoru Horie.  [Feature #12333]
-
-	* string.c (rb_str_concat_multi, rb_str_prepend_multi): ditto.
-
-Thu Aug 25 00:42:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/file.c (append_wstr): remove a codepage argument, and use
-	  INVALID_CODE_PAGE for conversion by econv.
-
-	* win32/file.c (append_wstr): exclude the terminator from the
-	  result length when input len == -1.
-
-Wed Aug 24 22:41:30 2016  Kouhei Sutou  <kou@cozmixng.org>
-
-	* gc.c (gc_reset_malloc_info): Remove too much ";".
-
-Wed Aug 24 20:07:57 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* include/ruby/defines.h (ALWAYS_INLINE): Add alternative definition.
-	  Fix compile error with compilers that do not have force inline
-	  attribute, including old version of fcc on Solaris 10.
-	  [ruby-dev:49773] [Bug #12701]
-
-Wed Aug 24 16:56:26 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* .gdbinit: follow r55766's VM change.
-
-Wed Aug 24 12:57:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_mod_initialize, rb_class_initialize): [DOC] these
-	  methods do not invoke module_eval/class_eval, just eval the
-	  given block under the new module/class but sharing the context
-	  with the surrounding scope like those methods.
-	  [ruby-core:77023] [Bug #12696]
-
-Tue Aug 23 10:34:40 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/psych/test_psych.rb (test_load_file_with_fallback): fix
-	  Tempfile leak.  https://github.com/tenderlove/psych/pull/288
-
-Tue Aug 23 10:15:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_fs_setter): check and convert $; value at
-	  assignment.
-
-Tue Aug 23 02:09:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_split_m): show $; name in error message when it
-	  is a wrong object.
-
-Mon Aug 22 16:29:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/csv.rb (CSV#shift): store partial quoted strings in an array
-	  and join at last, to improve performance with very long quoted
-	  lines.  [ruby-core:76987] [Bug #12691]
-
-Mon Aug 22 14:35:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* man/irb.1: remove useless -width option.
-	  [ruby-dev:49767] [Bug #12692]
-
-Mon Aug 22 09:02:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* iseq.c (Init_ISeq): undefine allocator of InstructionSequence,
-	  to get rid of segfaults at method call on uninitialized object.
-
-Sat Aug 21 05:47:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* enum.c (enum_sort): prevent wasteful array duplication.
-
-Sat Aug 20 11:20:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* rubystub.c: generalize win32/stub.c.
-
-Fri Aug 19 11:39:06 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (primary): allow parenthesised statement as a method
-	  argument.  [Feature #12686]
-
-Fri Aug 19 09:12:45 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm.c (vm_set_main_stack): TOPLEVEL_BINDING must be built.
-	  http://www.viva64.com/en/b/0414/#ID0EQ1CI  [ruby-core:76973]
-
-Fri Aug 19 01:00:53 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* proc.c (mnew_missing): Remove an unused argument.
-	  After r51126 rid is not used.
-
-Thu Aug 18 09:26:52 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* gems/bundled_gems: bump to test-unit-3.2.1
-
-Thu Aug 18 02:36:26 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/rbinstall.rb: skip gems which failed to build extensions.
-	  [ruby-dev:49764] [Bug #12683]
-
-Wed Aug 17 23:35:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gems/bundled_gems (tk): bump up to 0.1.1.
-
-Wed Aug 17 23:14:42 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: build gem extensions into separate directories
-
-	* tool/rbinstall.rb: install pre-built gem extension files gem
-	  extension directories.  [ruby-core:76931] [Bug #12681]
-
-Tue Aug 16 21:04:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (UNICODE_HDR_DIR): separate unicode header files from
-	  unicode data files.  [ruby-core:76879] [Bug #12677]
-
-Tue Aug 16 11:17:51 2016  Koichi ITO  <koic.ito@gmail.com>
-
-	* lib/net/http/header.rb: Fix typo. [ci skip][fix GH-1407]
-	* transcode.c: ditto.
-
-Tue Aug 16 11:02:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/make-snapshot (package): save generated header files from
-	  unicode data.  [ruby-core:76879] [Bug #12677]
-
-Mon Aug 15 20:31:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* node.c (dump_array): show nd_alen field in NODE_ARRAY only in
-	  the first node.  it is nd_end in the rest nodes.
-
-Mon Aug 15 16:41:32 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* appveyor.yml: Update libressl version to 2.3.7.
-
-Mon Aug 15 11:46:50 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb (extmake): extension libraries in gems cannot link
-	  statically.
-
-Sun Aug 14 22:35:40 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* id_table.c (hash_table_extend): should not shrink the table than
-	  the previous capacity.  [ruby-core:76534] [Bug #12614]
-
-Sun Aug 14 18:51:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gems/bundled_gems: add gemified tk 0.1.0.
-	  this needs `extract-gems` to build.
-
-Sun Aug 14 14:54:14 2016  Kouhei Sutou  <kou@cozmixng.org>
-
-	* object.c (InitVM_Object): Update referenced document path.
-
-Sat Aug 13 23:08:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (num_funcall0, num_funcall1): get rid of infinite
-	  recursion in fallback methods of Numeric.
-
-Sat Aug 13 11:10:08 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (command_asgn, arg): fix syntax errors with chained
-	  assignment with op assign.  [Bug #12669]
-
-Sat Aug 13 10:52:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (stmt, arg): rescue modifier in command op assignment
-	  should be limited to rhs only.  [ruby-core:75621] [Bug #12402]
-
-Sat Aug 13 07:51:40 2016  Masaki Suketa <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/win32ole.c (ole_val2variant): fix integer conversion in
-	  cygwin64.
-
-Fri Aug 12 21:05:19 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/webrick/config.rb (WEBrick::Config::General):
-	  disable reverse lookup by default. [ruby-core:45514] [Feature #6559]
-	  Socket.do_not_reverse_lookup is true by default but WEBrick
-	  overwrote it.
-	  patch by Eric Hodel [ruby-core:45527]
-
-Fri Aug 12 12:50:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (rb_syntax_error_append): fix newline in syntax error
-	  message to the beginning, not after file name and line number.
-	  [Feature #11951]
-
-Thu Aug 11 16:24:23 2016  Ferdinand Niedermann  <nerdinand@nerdinand.com>
-
-	* compar.c (cmp_clamp): Introduce Comparable#clamp.  [Feature #10594]
-
-Thu Aug 11 03:16:59 2016  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/prime.rb: Optimize prime?
-	  Adapted from patch by Jabari Zakiya [#12665]
-
-	* test/test_prime.rb: Improve test
-
-Wed Aug 10 22:37:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (command_rhs, arg_rhs): introduce new rules to reduce
-	  repeated rules with rescue modifier.
-
-Wed Aug 10 17:26:43 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (command_asgn): rescue modifier in command assignment
-	  should be limited to rhs only.  [ruby-core:75621] [Bug #12402]
-
-Wed Aug 10 15:35:03 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/win32/resolv/resolv.c: needs windows.h for iphlpapi.h on
-	  cygwin.  [ruby-core:76791] [Bug #12663]
-
-	* ext/win32/resolv/resolv.c (w32error_make_error): use
-	  Win32::Resolv::Error, an alias of Win32::Registry::Error.
-
-Tue Aug  9 17:50:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* hash.c (rb_hash_map_v, rb_hash_map_v_bang): implement Hash#map_v and
-	  Hash#map_v! [Feature #12512] [ruby-core:76095]
-
-	* test/ruby/test_hash.rb: add tests for above change.
-
-Tue Aug  9 16:09:03 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_getivar): use always_inline because
-	  gcc7 doesn't inline this without always_inline.
-
-Tue Aug  9 15:41:24 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/tk: Tk is removed from stdlib.  [Feature #8539]
-	  https://github.com/ruby/tk is the new upstream.
-
-Tue Aug  9 00:12:31 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* doc/maintainers.rdoc: Remove moved file section.
-
-Mon Aug  8 20:56:46 2016  Masaki Suketa <masaki.suketa@nifty.ne.jp>
-
-	* ext/win32ole/sample/excel1.rb, ext/win32ole/sample/excel2.rb,
-	  ext/win32ole/sample/excel3.rb, ext/win32ole/sample/ie.rb,
-	  ext/win32ole/sample/ienavi.rb, ext/win32ole/sample/ienavi2.rb: use
-	  true instead of deprecated TRUE. [ci skip]
-
-Mon Aug  8 12:51:12 2016  Zarko Todorovski <zarko@ca.ibm.com>
-
-	* internal.h (RBASIC_CLEAR_CLASS): Reroute ANSI C's strict
-	  aliasing rule.
-	  [ruby-core:74427][Bug #12191][ruby-core:76747][Bug #12657]
-
-Sun Aug  7 18:08:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (InitVM_Object): deprecate toplevel constants TRUE,
-	  FALSE, and NIL.  [Feature #12574]
-
-Sun Aug  7 06:48:21 2016  Eric Wong  <e@80x24.org>
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_write_internal):
-	  avoid undefined behavior
-	* test/openssl/test_pair.rb (test_write_zero): new test
-	  [ruby-core:76751] [Bug #12660]
-
-Sat Aug  6 09:35:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* id_table.h (rb_id_table_iterator_result): add dummy sentinel
-	  member because C standard prohibits a trailing comma.
-
-Sat Aug  6 00:39:44 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (env_enc_str_new): make string for an environment
-	  variable name or value.
-
-	* hash.c (env_name_new): make environment value string with the
-	  encoding for its name.
-
-Fri Aug  5 23:18:35 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* hash.c (env_str_new): taint the string.  get rid of a test failure
-	  introduced at r55811.
-
-Fri Aug  5 17:04:02 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (w32_getenv): call rb_w32_getenv and rb_w32_ugetenv via
-	  this pointer without further comparisons.
-
-Thu Aug  4 11:54:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (env_assoc): the encoding of the value should be the
-	  locale, as well as other methods, [], fetch, values, etc.
-
-Wed Aug  3 21:31:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (reg_fragment_enc_error): compile_error is different
-	  between parser and ripper.  [ruby-core:76397] [Bug #12651]
-
-Wed Aug  3 17:15:06 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_obj_clone2): restrict freeze option to true other
-	  than false which only has the effect.  [Feature #12300]
-
-Wed Aug  3 10:47:07 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: introduce VM_FRAME_RUBYFRAME_P()
-	  and VM_FRAME_CFRAME_P().
-	  Most of case, RUBY_VM_NORMAL_ISEQ_P() is no
-	  longer needed.
-
-	* vm_core.h: introduce rb_obj_is_iseq().
-
-	* cont.c, vm.c: VM_FRAME_MAGIC_DUMMY with
-	  VM_FRAME_FLAG_CFRAME.
-
-Wed Aug  3 09:25:16 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: rename macros and make them inline functions.
-
-	  * rename VM_FRAME_TYPE_FINISH_P() to VM_FRAME_FINISHED_P().
-	  * rename VM_FRAME_TYPE_BMETHOD_P() to VM_FRAME_BMETHOD_P().
-
-Wed Aug 03 09:15:02 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: introduce VM_FRAME_FLAG_CFRAME to represent cfp->iseq
-	  type.
-
-Tue Aug  2 21:42:40 2016  Chia-sheng Chen  <qitar888@gmail.com>
-
-	* math.c (tanh): make faster by the extract form if three
-	  hyperbolic functions are unavailable.  [Feature #12647]
-
-Tue Aug  2 12:37:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/option.c, ext/socket/rubysocket.h (inet_ntop): share
-	  the fallback definition.  [ruby-core:76646] [Bug #12645]
-
-Tue Aug  2 04:07:29 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (set_pioinfo_extra): use more reliable way to search
-	  the position of pioinfo of VC14, and also support debug library of it.
-	  patched by davispuh AT gmail.com
-	  [ruby-core:76644] [Bug #12644]
-	  this fixes also [Bug #12631]
-
-Mon Aug  1 21:39:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: [EXPERIMENTAL] build extension libraries in
-	  extracted gems.
-
-Mon Aug  1 16:07:18 2016  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* include/ruby/ruby.h (struct RStruct): no longer.
-
-	* internal.h (struct RStruct): moved here.
-
-	* struct.c (rb_struct_ptr): a compensation function for the lack
-	  of RSTRUCT_PTR.  But now that we have RSTRUCT_GET/SET, that must
-	  not be used anyway.  I mark this deprecated.  Dont use it.
-
-Mon Aug  1 14:50:06 2016  Jeremy Evans <code@jeremyevans.net>
-
-	* object.c (rb_obj_clone2): Allow Object#clone to take freeze:
-	  false keyword argument to not freeze the clone.
-	  [ruby-core:75017][Feature #12300]
-
-	* test/ruby/test_object.rb (TestObject): test for it.
-
-Mon Aug  1 12:16:19 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/json/*, test/json/json_parser_test.rb: Update json-2.0.2.
-
-Sun Jul 31 16:17:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/win32/resolv/resolv.c (get_dns_server_list): [Win32] get DNS
-	  servers only for connected network devices by GetNetworkParams
-	  API.  [Bug #12604]
-
-Sat Jul 30 12:13:26 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c (String#downcase), NEWS: Mentioned that case mapping for all
-	  of ISO-8859-1~16 is now supported. [ci skip]
-
-Sat Jul 30 12:00:01 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_2.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for ISO-8859-2, by Yushiro Ishii.
-
-Fri Jul 29 20:57:12 2016  chuanshuo  <lilijreey@126.com>
-
-	* *.c: rename rb_funcall2 to rb_funcallv, except for extensions
-	  which are/will be/may be gems.  [Fix GH-1406]
-
-Fri Jul 29 10:51:34 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* proc.c (env_write): remove unused function.
-
-Fri Jul 29 10:49:52 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h (VM_LOCAL_P): should return an integer value.
-	  reported at
-	  http://d.hatena.ne.jp/nagachika/20160728/ruby_trunk_changes_55764_55770
-
-Fri Jul 29 04:23:08 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h (VM_ENV_LOCAL_P): return truthy (0 or not) value.
-
-	* vm.c (rb_vm_make_proc_lambda): use VM_ENV_ESCAPED_P() macro.
-
-Fri Jul 29 03:49:04 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c, internal.h: remove RubyVM::Env class and all of env objects
-	  are imemo objects (imemo_env).
-
-	* NEWS: describe this change. I believe nobody touch these objects
-	  because there are no method defined.
-
-	* vm_core.h: remove the following definitions.
-	  * rb_cEnv decl.
-	  * GetEnvPtr() because Env is no longer T_DATA object.
-
-	* vm_core.h (rb_env_t): fix layout for imemo values.
-
-	* vm_core.h (vm_assert_env): added.
-
-	* vm_core.h (vm_env_new): added.
-
-Thu Jul 28 19:53:21 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_core.h: revisit the structure of frame, block and env.
-	  [Bug #12628]
-
-	  This patch introduce many changes.
-
-	  * Introduce concept of "Block Handler (BH)" to represent
-	    passed blocks.
-
-	  * move rb_control_frame_t::flag to ep[0] (as a special local
-	    variable). This flags represents not only frame type, but also
-	    env flags such as escaped.
-
-	  * rename `rb_block_t` to `struct rb_block`.
-
-	  * Make Proc, Binding and RubyVM::Env objects wb-protected.
-
-	  Check [Bug #12628] for more details.
-
-Thu Jul 28 15:05:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (ruby_fl_type): use __extension__ to get rid
-	  of pedantic warning against RUBY_FL_USER19.
-	  https://github.com/skylightio/skylight-ruby/issues/64
-
-	* include/ruby/ruby.h (rb_mul_size_overflow): ditto for use of
-	  int128.
-
-Wed Jul 27 10:32:59 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/windows_1253.c: Remove dead code found by Coverity Scan.
-
-Tue Jul 26 22:43:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (run_finalizer): make saved running finalizer state
-	  volatile to ensure not to be clobbered by longjmp.
-
-Tue Jul 26 19:26:00 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_insnhelper.c: introduce rb_vm_pop_frame() and use it
-	  instead of setting rb_thread_t::cfp directly.
-
-	* vm_insnhelper.c (vm_pop_frame): return the result of
-	  finish frame or not.
-
-Tue Jul 26 19:06:39 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (rb_raw_obj_info): support to show Proc obj.
-
-Tue Jul 26 18:55:55 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_mark): add `inline' explicitly.
-	  I expected to inline this function implicitly at the loop
-	  (ex: marking T_ARRAY objects) but sometimes it remains as
-	  normal call.
-
-Tue Jul 26 16:33:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/windows_1257.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for Windows-1257, by Sho Koike.
-
-Tue Jul 26 16:19:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/windows_1250.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for Windows-1250, by Sho Koike.
-
-	* ChangeLog: Fixed order of previous two entries.
-
-Tue Jul 26 15:54:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/windows_1253.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for Windows-1253, by Takumi Koyama.
-
-Tue Jul 26 15:30:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/windows_1251.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for Windows-1251, by Shunsuke Sato.
-
-Tue Jul 26 13:04:59 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive.rb: Add explicit skip test for
-	  availability of Unicode data files.
-
-Mon Jul 25 21:33:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* range.c (check_step_domain): check step argument domain by <=>
-	  method, instead of < and >.
-
-Mon Jul 25 21:11:32 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* doc/maintainers.rdoc: fix filenames.
-
-Mon Jul 25 16:59:00 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* debug.c (ruby_debug_printf): use rb_raw_obj_info()
-	  instead of rb_inspect() because it is more robust way
-	  to see object internal.
-
-Sun Jul 24 16:33:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* regenc.h/c, include/ruby/oniguruma.h, enc/ascii.c, big5.c, cp949.c,
-	  emacs_mule.c, euc_jp.c, euc_kr.c, euc_tw.c, gb18030.c, gbk.c,
-	  iso_8859_1|2|3|4|5|6|7|8|9|10|11|13|14|15|16.c, koi8_r.c, koi8_u.c,
-	  shift_jis.c, unicode.c, us_ascii.c, utf_16|32be|le.c, utf_8.c,
-	  windows_1250|51|52|53|54|57.c, windows_31j.c, unicode.c:
-	  Remove conditional compilation macro ONIG_CASE_MAPPING. [Feature #12386].
-
-Sun Jul 24 12:53:42 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* doc/maintainers.rdoc: xmlrpc is bundled gem from Ruby 2.4.
-
-Sun Jul 24 12:07:39 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* doc/maintainers.rdoc: Update OpenSSL maintainer.
-
-Sat Jul 23 22:43:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h (Check_Type): inline check for the object type.
-
-Sat Jul 23 04:06:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (RTEST, NIL_P): use RUBY prefixed name in
-	  macros.
-
-Sat Jul 23 01:41:29 2016  Eric Wong  <e@80x24.org>
-
-	* lib/webrick/httpservlet/cgihandler.rb (do_GET): delete HTTP_PROXY
-	* test/webrick/test_cgi.rb (test_cgi_env): new test
-	* test/webrick/webrick.cgi (do_GET): new endpoint to dump env
-	  [ruby-core:76511] [Bug #12610]
-
-Fri Jul 22 19:55:20 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm.c (vm_set_main_stack): remove unnecessary check.  toplevel
-	  binding must be initialized.  [Bug #12611] (N1)
-
-	* win32/win32.c (w32_symlink): fix return type.  [Bug #12611] (N3)
-
-	* string.c (rb_str_split_m): simplify the condition.
-	  [Bug #12611](N4)
-
-Fri Jul 22 17:13:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c (String#dump): Change escaping of non-ASCII characters in
-	  UTF-8 to use upper-case four-digit hexadecimal escapes without braces
-	  where possible [Feature #12419].
-
-	* test/ruby/test_string.rb (test_dump): Add tests for above.
-
-Fri Jul 22 10:35:35 2016  Kouhei Sutou  <kou@cozmixng.org>
-
-	* lib/rexml/attribute.rb (REXML::Attribute#to_string): Fix wrong
-	  entry reference name of double quote.
-	  [Bug #12609][ruby-core:76509]
-	  Patch by Joseph Marrero. Thanks!!!
-
-Fri Jul 22 10:32:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* template/unicode_norm_gen.tmpl: Remove
-	  UnicodeNormalize::UNICODE_VERSION at origin [Feature #12546].
-
-Fri Jul 22 09:23:51 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* LEGAL: Added entries for files under the USD license.
-	  [Bug #12598][ruby-core:76428][ci skip]
-
-Fri Jul 22 09:19:57 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* LEGAL: Added entry for `lib/rdoc/generator/template/darkfish/css/fonts.css`
-	  [Misc #12550][ruby-core:76255][ci skip]
-
-Fri Jul 22 06:28:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (run_finalizer): push and exec tag just once, instead of
-	  protecting for each finalizer.
-
-	* gc.c (gc_start_internal, rb_gc_start): set finalizing flag
-	  whenever calling deferred finalizers not to recurse.
-
-Thu Jul 21 22:26:40 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* missing/strl{cat,cpy}.c: Update latest upstream files.
-	  [Misc #12205][ruby-core:74487]
-	* LEGAL: Update license for missing/strl{cat,cpy}.c.
-
-Thu Jul 21 21:53:30 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* LEGAL: added file list with Public domain license.
-	  [ruby-core:76254][Bug #12549]
-
-Wed Jul 20 17:44:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enumerator.c (lazy_uniq): new method Enumerator::Lazy#uniq.
-	  [Feature #11090]
-
-	* enum.c (enum_uniq): new method Enumerable#uniq.
-	  [Feature #11090]
-
-Wed Jul 20 17:35:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (rb_hash_add_new_element): add new element or do nothing
-	  if it is contained already.
-
-	* array.c (ary_add_hash, ary_add_hash_by): use
-	  rb_hash_add_new_element.
-
-Tue Jul 19 18:21:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* lib/unicode_normalize/tables.rb: Remove
-	  UnicodeNormalize::UNICODE_VERSION (#12546).
-
-Tue Jul 19 15:38:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (rb_local_constants_i): exclude private constants
-	  when excluding inherited constants too.  [Bug #12345]
-
-Sun Jul 17 23:42:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* numeric.c (num_finite_p, num_infinite_p): Add Numeric#finite? and
-	  Numeric#infinite?  [Feature #12039] [ruby-core:73618]
-
-	* complex.c (rb_complex_finite_p): Add Complex#finite?
-
-	* complex.c (rb_complex_infinite_p): Add Complex#infinite?
-
-	* test/ruby/test_bignum.rb: Add test for Integer#finite? and
-	  Integer#infinite?
-
-	* test/ruby/test_fixnum.rb: ditto.
-
-	* test/ruby/test_rational.rb: Add test for Rational#finite? and
-	  Rational#infinite?
-
-	* test/ruby/test_complex.rb: Add test for Complex#finite? and
-	  Complex#infinite?
-
-Sun Jul 17 20:59:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk, enc/depend (casefold.h, name2ctype.h): move to
-	  unicode data directory per version.
-
-Sat Jul 16 06:26:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk, enc/Makefile.in: moved timestamp files for
-	  directories under the specific directory, to get rid of match
-	  with files under the source directory.
-
-Fri Jul 15 22:05:13 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* string.c (str_buf_cat): Fix potential integer overflow of capa.
-	  In addition, termlen is used instead of +1.
-
-Fri Jul 15 21:30:38 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* string.c (str_buf_cat): Fix capa size for embed string.
-	  Fix bug in r55547. [Bug #12536]
-
-Fri Jul 15 18:13:15 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* gems/bundled_gems: update latest gems.
-
-Fri Jul 15 17:08:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* util.c (ruby_strtod): do not underflow only by preceding zeros,
-	  which may be canceled out by the exponent.
-	  http://twitter.com/kazuho/status/753829998767714305
-
-Fri Jul 15 09:53:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enc/unicode/case-folding.rb, tool/enc-unicode.rb: check if
-	  Unicode versions are consistent with each other.
-
-Fri Jul 15 08:25:15 2016  Jeremy Evans <code@jeremyevans.net>
-
-	* string.c (STR_BUF_MIN_SIZE): reduce from 128 to 127
-	  [ruby-core:76371] [Feature #12025]
-	* string.c (rb_str_buf_new): adjust for above reduction
-
-Thu Jul 14 17:26:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in (enc/unicode/name2ctype.h): remove stale recipe,
-	  which did not support Unicode age properties.
-
-	* common.mk (enc/unicode/name2ctype.h): update by --header option
-	  of tool/enc-unicode.rb.  enc/unicode/name2ctype.kwd file has not
-	  been used.
-
-	* common.mk (enc/unicode/name2ctype.kwd): rule to create from
-	  Unicode data files, used only when the target does not exist.
-
-Thu Jul 14 13:10:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/json/lib/json/ext: remove stale directory.  bundled
-	  extension libraries are placed under the directory for each
-	  architectures, but not mixed with plain text script libraries.
-
-Thu Jul 14 12:48:47 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/json/**/*.rb: merge original files from upstream repository.
-	  It only fixes styles of frozen string literal.
-
-Wed Jul 13 22:23:03 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/json/json_common_interface_test.rb: use assert_raise instead of
-	  assert_raises.
-
-Wed Jul 13 22:14:23 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/lib/test/unit.rb: added test files with `_test` suffix for json
-	  upstream.
-	* test/json: merge original test files from json upstream.
-
-Wed Jul 13 18:09:42 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_9.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for ISO-8859-9, by Kazuki Iijima.
-
-	* enc/iso_8859_9.c: Exclude dotless i/I with dot from case-insensitive
-	  matching because they are not a case pair.
-
-	* test/ruby/enc/test_iso_8859.rb: Make test coverage for ISO-8859-9
-	  a bit more complete.
-
-Wed Jul 13 17:21:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/windows_1252.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for Windows-1252, by Serina Tai.
-
-	* test/ruby/enc/test_case_comprehensive.rb: Fix order of encodings.
-
-Wed Jul 13 16:19:14 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_7.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for ISO-8859-7, by Kosuke Kurihara.
-
-	* test/ruby/enc/test_case_comprehensive.rb: Fix order of encodings.
-
-Wed Jul 13 16:08:08 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_mark_roots): should mark the VM object itself to mark
-	  singleton class of the VM object.
-	  Before this patch, we only set mark bit for the VM object and
-	  invoke mark function separately.
-	  [Bug #12583]
-
-	* test/ruby/test_gc.rb: add a test.
-
-Wed Jul 13 15:59:59 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* math.c (_USE_MATH_DEFINES): it must be set before including internal.h
-	  because internal.h includes ruby.h, ruby.h includes win32.h, and
-	  win32.h includes system's math.h.
-	  this change is to get rid of a compiler warning (redefinition of
-	  a macro) introduced at r55641.
-
-Wed Jul 13 15:19:03 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_1.c, enc/iso_8859_4.c: Avoid setting modification flag if
-	  there is no modification.
-
-Wed Jul 13 14:40:04 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_5.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for ISO-8859-5, by Masaru Onodera.
-
-	* test/ruby/enc/test_case_comprehensive.rb: Fix order of encodings.
-
-Wed Jul 13 14:28:33 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* math.c (rb_math_sqrt): r55646 must use f_signbit.
-
-Wed Jul 13 14:22:50 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* iseq.c (Init_ISeq): undef ISeq.translate and ISeq.load_iseq
-	  to prevent calling super classes' methods.
-
-	  Without this patch, you can write workaround like:
-
-	    class << RubyVM::InstructionSequence
-	      def translate; end
-	      undef translate
-	    end
-
-	* test/ruby/test_iseq.rb: add a test.
-
-Wed Jul 13 14:16:03 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_method.c (method_entry_get_without_cache): check
-	  undefined method even if ruby_running is FALSE.
-
-	  We haven't call "undef"ed methods before ruby_running.
-	  So that this issue does not make troubles.
-
-Wed Jul 13 14:15:22 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/windows_1254.c: Adjust variable/macro names.
-
-Wed Jul 13 13:19:12 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_9.c, enc/windows_1254.c: Split Windows-1254 from
-	  ISO-8859-9 to be able to implement different case conversions.
-
-Wed Jul 13 13:08:30 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_7.c, enc/windows_1253.c: Split Windows-1253 from
-	  ISO-8859-7 to be able to implement different case conversions.
-
-Wed Jul 13 10:50:12 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_13.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for ISO-8859-13, by Kanon Shindo.
-
-Wed Jul 13 10:31:39 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_13.c, enc/windows_1257.c: Split Windows-1257 from
-	  ISO-8859-13 to be able to implement different case conversions.
-
-Wed Jul 13 09:02:30 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_3.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for ISO-8859-3, by Takuya Miyamoto.
-
-	* test/ruby/enc/test_case_comprehensive.rb: Extend special treatment
-	  for Turkic.
-
-	* enc/iso_8859_3.c: Exclude dotless i/I with dot from case-insensitive
-	  matching because they are not a case pair.
-
-Wed Jul 13 08:40:21 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_iso_8859.rb: Exclude dotless i/I with dot from
-	  case-insensitive matching because they are not a case pair.
-
-Tue Jul 12 23:13:43 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* math.c (rb_math_sqrt): [EXPERIMENTAL] move Complex sqrt support
-	  from mathn.rb.
-
-Tue Jul 12 01:25:09 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* configure.in, lib/mkmf.rb, win32/Makefile.sub (CSRCFLAG): make the
-	  compiler option replacable in Makefile.
-
-	* win32/Makefile.sub (OUTFLAG, COUTFLAG): ditto.
-
-	* win32/Makeile.sub, win32/setup.mak (CC): should not append `-nologo`
-	  option forcely.
-
-Mon Jul 11 18:05:40 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_1.c: Moved test for lowercase characters without
-	  uppercase equivalent.
-
-Mon Jul 11 17:49:25 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_4.c, enc/iso_8859_10.c, enc/iso_8859_14.c,
-	  enc/iso_8859_15.c, enc/iso_8859_16.c: Replace case-by-case code with
-	  lookup in ENC_ISO_8859_xx_TO_LOWER_CASE table.
-
-Mon Jul 11 16:00:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_each, strio_readlines): convert
-	  arguments just once before reading, instead of conversions for
-	  each lines, as r55603.
-
-Sun Jul 10 19:53:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_10.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for ISO-8859-10, by Toya Hosokawa.
-
-Sun Jul 10 19:33:47 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive.rb: Changed testing logic to
-	  catch unintended modifications of characters that do not have a case
-	  equivalent in the respective encoding.
-	* enc/iso_8859_1.c, enc/iso_8859_15.c: Fixed unintended modifications of
-	  micro sign and y with diaeresis.
-
-Sun Jul 10 17:05:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_4.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for ISO-8859-4, by Kotaro Yoshida.
-
-Sun Jul 10 16:17:47 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive.rb: Fixed a comment
-	  (message belongs to last commit). [ci skip]
-
-Sun Jul 10 14:27:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* util.c (ruby_dtoa): [EXPERIMENTAL] adjust the case that the
-	  Float value is close to the exact but unrepresentable middle
-	  value of two values in the given precision, as r55604.
-
-Sun Jul 10 08:57:20 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* thread.c: Fixed implicit conversion error with Apple clang-800.0.31
-
-Sat Jul  9 12:43:09 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/getoptlong.rb: use false instead of FALSE.
-
-Fri Jul  8 21:49:28 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* thread.c (rb_wait_for_single_fd): Clean up fds.revents every time
-	  before calling ppoll(2). [Bug #12575] [ruby-dev:49725]
-
-Fri Jul  8 14:16:48 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_args.c (vm_caller_setup_arg_block): call rb_sym_to_proc()
-	  directly to reduce method dispatch overhead.
-
-Fri Jul  8 08:43:31 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* io.c (rb_io_s_read): add description of pipes to the documentation
-	  of IO.read.
-
-Fri Jul  8 03:54:22 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* vm_args.c (setup_parameters_complex): don't raise ArgumentError
-	  if an array is given for instance_exec with optional argument.
-	  [ruby-core:76300] [Bug #12568]
-	  https://github.com/rails/rails/pull/25699
-
-Fri Jul  8 00:47:36 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* vm_eval.c (yield_under): change prototype to get argc/argv.
-
-	* vm_eval.c (specific_eval): change for above.
-
-	* vm_eval.c (rb_obj_instance_exec): avoid object allocation.
-
-	* vm_eval.c (rb_mod_module_exec): ditto.
-
-Thu Jul  7 20:08:37 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm_args.c (vm_caller_setup_arg_block): disable symbol block
-	  argument optimization when tail call optimization is enabled,
-	  in order to avoid SEGV.  [ruby-core:76288] [Bug #12565]
-
-Thu Jul  7 16:37:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (flo_round): [EXPERIMENTAL] adjust the case that the
-	  receiver is close to the exact but unrepresentable middle value
-	  of two values in the given precision.
-	  http://d.hatena.ne.jp/hnw/20160702
-
-Thu Jul  7 16:31:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_io_s_foreach, rb_io_s_readlines): convert arguments
-	  just once before reading, instead of conversions for each lines.
-
-Wed Jul  6 19:54:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_14.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for ISO-8859-14, by Yutaro Tada.
-
-Wed Jul  6 19:24:48 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_1.c, enc/iso_8859_15.c, enc/iso_8859_16.c:
-	  Align indenting to onigmo convention.
-
-Wed Jul  6 18:59:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_15.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for ISO-8859-15, by Maho Harada.
-
-Wed Jul  6 18:34:21 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_16.c, test/ruby/enc/test_case_comprehensive.rb:
-	  Implement non-ASCII case conversion for ISO-8859-16, by Satoshi Kayama.
-
-Wed Jul  6 14:44:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (create_makefile): store $headers in LOCAL_HDRS for
-	  depend files.
-
-	* ext/digest/digest_conf.rb (digest_conf): add implementation
-	  specific headers to $header.
-
-	* ext/digest/{md5,rmd160,sha1,sha2}/depend: add LOCAL_HDRS to the
-	  dependencies.
-
-Wed Jul  6 08:59:35 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/http/generic_request.rb (write_header): A Request-Line must
-	  not contain CR or LF.
-
-Wed Jul  6 07:11:27 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/ftp.rb (putline): raise an ArgumentError when
-	  CR or LF is included in a line.
-
-Tue Jul  5 20:49:30 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/json/*, test/json/*: Update json-2.0.1.
-	  Changes of 2.0.0: https://github.com/flori/json/blob/f679ebd0c69a94e3e70a897ac9a229f5779c2ee1/CHANGES.md#2015-09-11-200
-	  Changes of 2.0.1: https://github.com/flori/json/blob/f679ebd0c69a94e3e70a897ac9a229f5779c2ee1/CHANGES.md#2016-07-01-201
-	  [Feature #12542][ruby-dev:49706][fix GH-1395]
-
-Tue Jul  5 19:39:49 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* string.c (rb_str_change_terminator_length): New function to change
-	  termlen and resize heap for the terminator. This is split from
-	  rb_str_fill_terminator (str_fill_term) because filling terminator
-	  and changing terminator length are different things. [Bug #12536]
-
-	* internal.h: declaration for rb_str_change_terminator_length.
-
-	* string.c (str_fill_term): Simplify only to zero-fill the terminator.
-	  For non-shared strings, it assumes that (capa + termlen) bytes of
-	  heap is allocated. This partially reverts r55557.
-
-	* encoding.c (rb_enc_associate_index): rb_str_change_terminator_length
-	  is used, and it should be called whenever the termlen is changed.
-
-	* string.c (str_capacity): New static function to return capacity
-	  of a string with the given termlen, because the termlen may
-	  sometimes be different from TERM_LEN(str) especially during
-	  changing termlen or filling terminator with specific termlen.
-
-	* string.c (rb_str_capacity): Use str_capacity.
-
-Tue Jul  5 11:07:14 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* pack.c (pack_pack): use union instead of bare variable to ease
-	  optimizations and avoid assigning x87 floating point number.
-	  [ruby-core:74496] [Bug #12209]
-
-	* pack.c (pack_unpack): ditto.
-
-Mon Jul  4 13:56:34 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* process.c: define sig_t if not exist.
-	  at least Solaris 10 and 11 doesn't have sig_t.
-
-Mon Jul  4 13:08:48 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* random.c (random_ulong_limited): avoid left shift count >= width of
-	  type on 32bit environment.
-
-Sun Jul  3 18:51:42 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive.rb, test_regex_casefold.rb,
-	  test/test_unicode_normalize.rb: Replace UNICODE_VERSION from
-	  UnicodeNormalize with RbConfig::CONFIG['UNICODE_VERSION'] from
-	  feature 12460.
-
-Sun Jul  3 06:04:09 2016  Eric Wong  <e@80x24.org>
-
-	* process.c (disable_child_handler_fork_child): simplify
-	  [ruby-core:75781] [Misc #12439]
-
-Sun Jul  3 05:25:46 2016  Eric Wong  <e@80x24.org>
-
-	* tool/asm_parse.rb: add description
-	* tool/change_maker.rb: ditto
-	* tool/downloader.rb: ditto
-	* tool/eval.rb: ditto
-	* tool/expand-config.rb: ditto
-	* tool/extlibs.rb: ditto
-	* tool/fake.rb: ditto
-	* tool/file2lastrev.rb: ditto
-	* tool/gem-unpack.rb: ditto
-	* tool/gen_dummy_probes.rb: ditto
-	* tool/gen_ruby_tapset.rb: ditto
-	* tool/generic_erb.rb: ditto
-	* tool/id2token.rb: ditto
-	* tool/ifchange: ditto
-	* tool/insns2vm.rb: ditto
-	* tool/instruction.rb: ditto
-	* tool/jisx0208.rb: ditto
-	* tool/merger.rb: ditto
-	* tool/mkrunnable.rb: ditto
-	* tool/node_name.rb: ditto
-	* tool/parse.rb: ditto
-	* tool/rbinstall.rb: ditto
-	* tool/rbuninstall.rb: ditto
-	* tool/rmdirs: ditto
-	* tool/runruby.rb: ditto
-	* tool/strip-rdoc.rb: ditto
-	* tool/vcs.rb: ditto
-	* tool/vtlh.rb: ditto
-	* tool/ytab.sed: ditto
-	* tool/enc-unicode.rb: fix typo
-	* tool/mk_call_iseq_optimized.rb: ditto
-	* tool/update-deps: ditto
-	  [ruby-core:76215] [Bug #12539]
-	  by Noah Gibbs <the.codefolio.guy@gmail.com>
-
-Sat Jul  2 18:04:24 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/uri/mailto.rb (initialize): RFC3986_Parser#split sets opaque
-	  only if the URI has path-rootless, not path-empty.
-	  [ruby-core:76055] [Bug #12498]
-	  patched by Chris Heisterkamp <cheister@squareup.com>
-
-Sat Jul  2 04:26:14 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regcomp.c (noname_disable_map): don't optimize out group 0
-	  Ruby's Regexp doesn't allow normal numbered groups if the regexp
-	  has named groups. On such case it optimizes out related NT_ENCLOSE.
-	  But even on the case it can use \g<0>.
-	  This fix not to remove NT_ENCLOSE whose regnum is 0.
-	  [ruby-core:75828] [Bug #12454]
-
-Sat Jul  2 03:09:27 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* string.c: Partially reverts r55547 and r55555.
-	  ChangeLog about the reverted changes are also deleted in this file.
-	  [Bug #12536] [ruby-dev:49699] [ruby-dev:49702]
-
-Sat Jul  2 02:22:22 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* string.c (str_fill_term): When termlen increases, re-allocation
-	  of memory for termlen should always be needed.
-	  In this fix, if possible, decrease capa instead of realloc.
-	  [Bug #12536] [ruby-dev:49699]
-
-Fri Jul  1 20:20:20 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* string.c: Specify termlen as far as possible.
-	  Additional fix for [Bug #12536] [ruby-dev:49699].
-
-	* string.c (str_new_static): Specify termlen from the given encoding
-	  when creating a new String object is needed.
-
-	* string.c (rb_tainted_str_new_with_enc): New function to create a
-	  tainted String object with the given encoding. This means that
-	  the termlen is correctly specified. Currently static function.
-	  The function name might be renamed to rb_tainted_enc_str_new
-	  or rb_enc_tainted_str_new.
-
-	* string.c (rb_external_str_new_with_enc): Use encoding by using the
-	  above rb_tainted_str_new_with_enc().
-
-Fri Jul  1 19:38:57 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* test/fiddle/test_pointer.rb (test_to_str, test_to_s, test_aref_aset):
-	  Attempt to use independent strings for destructive tests that
-	  directly modify values on memory by using Fiddle::Pointer.
-	  [Bug #12537] [ruby-dev:49700]
-
-Fri Jul  1 18:20:00 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* .gdbinit (rb_ps_thread): show the detail of cfunc in ruby level
-	  backtrace.
-
-Fri Jul  1 13:26:39 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* string.c (rb_str_subseq, str_substr): When RSTRING_EMBED_LEN_MAX
-	  is used, TERM_LEN(str) should be considered with it because
-	  embedded strings are also processed by TERM_FILL.
-	  Additional fix for [Bug #12536] [ruby-dev:49699].
-
-Fri Jul  1 12:11:01 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* .gdbinit (rb_count_objects): added gdb version of count_objects().
-
-Fri Jul  1 04:32:52 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* .gdbinit (rb_ps_thread): show ruby level backtrace.
-	  Usually you can call `rb_ps` to show ruby level backtraces
-	  for all living threads.
-	  Note that it can call with core file like `gcore <pid>`
-	  and `gdb ruby core.<pid>`.
-
-Thu Jun 30 19:15:13 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* string.c: Fix memory corruptions when using UTF-16/32 strings.
-	  [Bug #12536] [ruby-dev:49699]
-
-	* string.c (rb_str_new_with_class): Use TERM_LEN of the "obj".
-
-	* string.c (rb_str_plus, rb_str_justify): Use str_new0 which is aware
-	  of termlen.
-
-	* string.c (str_shared_replace): Copy +termlen bytes instead of +1.
-
-	* string.c (rb_str_times): termlen should not be included in capa.
-
-	* string.c (RESIZE_CAPA_TERM): When using RSTRING_EMBED_LEN_MAX,
-	  termlen should be counted with it because embedded strings are
-	  also processed by TERM_FILL.
-
-	* string.c (rb_str_capacity, str_shared_replace, str_buf_cat): ditto.
-
-	* string.c (rb_str_drop_bytes, rb_str_setbyte, str_byte_substr): ditto.
-
-Wed Jun 29 22:24:37 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/psych/lib/psych_jars.rb: removed needless file required to JRuby.
-
-Wed Jun 29 22:21:38 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_ocsp.c: The "reuse" behavior of d2i_ functions does
-	  not work well with OpenSSL 1.0.0t. So avoid it.
-
-Wed Jun 29 15:18:28 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* insns.def (opt_succ): optimize like r55515. (but this argument is
-	  constant)
-
-Wed Jun 29 12:41:58 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* test/ruby/test_refinement.rb: skip
-	  test_prepend_after_refine_wb_miss on ARM or MIPS.
-	  [ruby-core:76031] [Bug #12491]
-
-Wed Jun 29 08:45:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (passed_block): convert passed block symbol to proc.
-	  based on the patch by Daisuke Sato in [ruby-dev:49695].
-	  [Bug #12531]
-
-Wed Jun 29 03:34:41 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* bignum.c (rb_big2ulong): the old logic seems to try to avoid
-	  calculating `-(long)(num-1)-1` if `num` is not LONG_MIN. (Note that
-	  `-LONG_MIN` may be larger than LONG_MAX) But C compilers can
-	  optimize it into single NEG instruction.
-	  Therefore those two conditions can be single if-body.
-
-	* bignum.c (rb_big2long): ditto.
-
-	* bignum.c (rb_big2ull): ditto.
-
-	* bignum.c (rb_big2ll): ditto.
-
-Tue Jun 28 22:55:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/pstore.rb (PStore::CHECKSUM_ALGO): extract the algorithm for
-	  checksum, instead of qualified names for each times.
-
-Tue Jun 28 22:29:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bootstraptest/runner.rb: do not use safe navigation operator.
-	  this runner may run on older ruby.  partially revert r53110
-	  (GH-1142 patched by @mlarraz).
-
-Tue Jun 28 22:09:09 2016  Akio Tajima <artonx@yahoo.co.jp>
-
-	* lib/fileutils.rb: rescue Errno:EACCES for chown.
-	  [Bug #12520]
-
-Tue Jun 28 18:38:09 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* ext/digest/md5/md5ossl.h: Remove excess semicolons.
-	  Suppress warning on Solaris with Oracle Solaris Studio 12.
-	  [ruby-dev:49692] [Bug #12524]
-
-	* ext/digest/md5/md5cc.h: ditto.
-	* ext/digest/sha1/sha1cc.h: ditto.
-	* ext/digest/sha1/sha1ossl.h: ditto.
-	* ext/digest/sha2/sha2cc.h: ditto.
-	* ext/digest/sha2/sha2ossl.h: ditto.
-	* ext/openssl/ossl_pkey_rsa.c: ditto.
-
-Tue Jun 28 15:56:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/ruby/enc/test_case_comprehensive.rb: noting to test if
-	  Unicode data files are available.
-	  [ruby-core:76160] [Bug #12433]
-
-	* test/test_unicode_normalize.rb: ditto.
-
-Tue Jun 28 15:20:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/net/http.rb (Net::HTTP#proxy_uri): cache the case no proxy
-	  is used.
-
-Tue Jun 28 09:56:29 2016  Stefan Schussler  <mail@stefanschuessler.de>
-
-	* object.c (rb_mod_eqq): [DOC] Fix typo in RDoc.  [Fix GH-1393]
-
-Tue Jun 28 02:41:32 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* insns.def (opt_plus): use `- 1` instead of `& (~1)` to allow
-	  compilers to use x86 LEA instruction (3 operand).
-	  Even if 3 operand LEA's latency is 3 cycle after SandyBridge,
-	  it reduces code size and can be faster because of super scalar.
-
-	* insns.def (opt_plus): calculate and use rb_int2big.
-	  On positive Fixnum overflow, `recv - 1 + obj` doesn't carry
-	  because recv's msb and obj's msb are 0, and resulted msb is 1.
-	  Therefore simply rshift and cast as signed long works fine.
-	  On negative Fixnum overflow, it will carry because both arguments'
-	  msb are 1, and resulted msb is also 1.
-	  In this case it needs to restore carried sign bit after rshift.
-
-Mon Jun 27 16:58:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/fileutils.rb (FileUtils#install): accecpt symbolic mode, as
-	  well as chmod.
-
-	* lib/fileutils.rb (FileUtils#install): add owner and group
-	  options.
-
-Mon Jun 27 08:56:55 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (ADD_TRACE): ignore trace instruction on non-positive
-	  line.
-
-	* parse.y (coverage): get rid of ArgumentError when the starting
-	  line number is not positive.  [ruby-core:76141] [Bug #12517]
-
-Sun Jun 26 10:20:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/win32/lib/Win32API.rb (Win32API#initialize): Cygwin
-	  2.5.2-1 (perhaps) seems to no longer append ".dll" suffix
-	  implicitly.
-
-	* ext/win32/lib/win32/resolv.rb (Win32::Resolv): ditto.  Fix the
-	  error reported by yamataka AT u08.itscom.net in
-	  [ruby-list:50339], and pointed out and patched by cerberus AT
-	  m3.kcn.ne.jp in [ruby-list:50341].
-
-Sat Jun 25 10:07:52 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* test/openssl/test_ocsp.rb: Ignore errors caused by bugs that exist in
-	  LibreSSL >= 2.3.1.
-
-Sat Jun 25 02:33:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_method.c (vm_respond_to): try method_missing if respond_to?
-	  is undefined, as if it is the default definition.
-	  [ruby-core:75377] [Bug #12353]
-
-Fri Jun 24 17:04:21 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/psych/*, test/psych/*: Update psych 2.1.0
-	  This version fixed [Bug #11988][ruby-core:72850]
-
-Fri Jun 24 13:12:41 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*:
-	  Update rubygems 2.6.5 and 2.6.6.
-	  Release note of 2.6.5: https://github.com/rubygems/rubygems/commit/656f5d94dc888d78d0d00f3598a4fa37391aac80
-	  Release note of 2.6.6: https://github.com/rubygems/rubygems/commit/ccb9c3300c063f5b5656669972d24a10ef8afbf5
-
-Fri Jun 24 09:17:15 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (lib/unicode_normalize/tables.rb): should not depend
-	  on Unicode data files unless ALWAYS_UPDATE_UNICODE=yes, to get
-	  rid of downloading Unicode data unnecessary.  [ruby-dev:49681]
-
-	* common.mk (enc/unicode/casefold.h): update Unicode files in a
-	  sub-make, not to let the header depend on the files always.
-
-	* enc/unicode/case-folding.rb: if gperf is not usable, assume the
-	  existing file is OK.
-
-Tue Jun 21 19:44:54 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_regex_casefold.rb: Add Windows-1251, KOI8-R, and
-	  KOI8-U to encodings; definitely removed EUC-JP.
-
-Tue Jun 21 19:32:23 2016  Mark St.Godard  <markstgodard@gmail.com>
-
-	* lib/webrick/httprequest.rb (setup_forwarded_info): Use the first
-	  value in X-Forwarded-Proto, if header contains multiple comma
-	  separated values.  Some middlewares may add these values to the
-	  list, not replacing.  [Fix GH-1386]
-
-Tue Jun 21 17:17:42 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/test_io.rb: Skip test_readpartial_with_not_empty_buffer,
-	  test_read_buffer_error, test_read_unlocktmp_ensure,
-	  test_readpartial_unlocktmp_ensure, and
-	  test_sysread_unlocktmp_ensure on cygwin,
-	  because these tests repeatedly hang. This makes test_io.rb
-	  complete in finite time on cygwin.
-
-	* ChangeLog: Fix test_in.rb -> test_io.rb (two instances).
-
-Tue Jun 21 16:38:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_casemap): do not put code with side effects
-	  inside RSTRING_PTR() macro which evaluates the argument multiple
-	  times.
-
-Tue Jun 21 16:13:45 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* string.c (rb_str_casemap): fix memory leak.
-
-Tue Jun 21 16:12:21 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* string.c (rb_str_casemap): int is too small for string size.
-
-Tue Jun 21 15:42:22 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/test_io.rb: Skip test_read_buffer_error on cygwin,
-	  because this test repeatedly hangs.
-
-Tue Jun 21 15:35:14 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* LEGAL: Added filenames and copyrights for some files in
-	  enc/trans/JIS.
-
-Tue Jun 21 00:56:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (get_special_folder): fix calling convention of
-	  SHGetPathFromIDListEx, which should be WINAPI.  pointed out by
-	  @arton at http://twitter.com/arton/status/744884064277016576
-
-Tue Jun 21 00:22:02 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in, include/ruby/defines.h (RUBY_USE_SETJMPEX):
-	  include setjmpex.h only when using setjmpex() for RUBY_SETJMP.
-	  the header of mingw32 overrides setjmp() by setjmpex().
-
-Mon Jun 20 18:39:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/test_io.rb: Skip test_open_fifo_does_not_block_other_threads
-	  on cygwin. Fifos seem to work okay in cygwin, but this test repeatedly
-	  hangs.
-
-Mon Jun 20 13:35:06 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* vm.c (invoke_bmethod, invoke_block_from_c_0): revert r52104
-	  partially to avoid "self has wrong type to call super in this
-	  context" errors.
-	  [ruby-core:72724] [Bug #11954]
-
-Mon Jun 20 12:53:38 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* test/rubygems/test_gem_remote_fetcher.rb: OpenSSL::PKey::DH#priv_key=
-	  is not defined when ext/openssl is built with OpenSSL 1.1.0.
-	  https://github.com/rubygems/rubygems/pull/1648
-	  [ruby-core:75225] [Feature #12324]
-
-Sun Jun 19 21:25:43 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_ocsp.c: Add OCSP::SingleResponse that represents an
-	  OCSP SingleResponse structure. Also add two new methods #responses
-	  and #find_response to OCSP::BasicResponse. A BasicResponse has one or
-	  more SingleResponse. We have OCSP::BasicResponse#status that returns
-	  them as an array of arrays, each containing the content of a
-	  SingleResponse, but this is not useful. When validating an OCSP
-	  response, we need to look into the each SingleResponse and check their
-	  validity but it is not simple. For example, when validating for a
-	  certificate 'cert', the code would be like:
-
-	    # certid_target is an OpenSSL::OCSP::CertificateId for cert
-	    basic = res.basic
-	    result = basic.status.any? do |ary|
-	      ary[0].cmp(certid_target) &&
-	        ary[4] <= Time.now && (!ary[5] || Time.now <= ary[5])
-	    end
-
-	  Adding OCSP::SingleResponse at the same time allows exposing
-	  OCSP_check_validity(). With this, the code above can be rewritten as:
-
-	    basic = res.basic
-	    single = basic.find_response(certid_target)
-	    result = single.check_validity
-
-	* test/openssl/test_ocsp.rb: Test this.
-
-Sun Jun 19 18:40:19 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_ocsp.c (ossl_ocspbres_add_status): Allow specifying
-	  the times (thisUpdate, nextUpdate and revocationTime) with Time
-	  objects. Currently they accepts only relative seconds from the current
-	  time. This is inconvenience, especially for revocationTime. When
-	  Integer is passed, they are still treated as relative times. Since the
-	  type check is currently done with rb_Integer(), this is a slightly
-	  incompatible change. Hope no one passes a relative time as String or
-	  Time object...
-	  Also, allow passing nil as nextUpdate. It is optional.
-
-	* ext/openssl/ruby_missing.h: Define RB_INTEGER_TYPE_P() if not defined.
-	  openssl gem will be released before Ruby 2.4.0.
-
-Sun Jun 19 18:39:38 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_ocsp.c: Implement OCSP::{CertificateId,Request,
-	  BasicResponse,Response}#initialize_copy.
-	  [ruby-core:75504] [Bug #12381]
-
-	* test/openssl/test_ocsp.rb: Test them.
-
-Sun Jun 19 18:29:50 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_pkey_dh.c, ext/openssl/ossl_pkey_dsa.c,
-	  ext/openssl/ossl_pkey_ec.c, ext/openssl/ossl_pkey_rsa.c: Implement
-	  initialize_copy method for OpenSSL::PKey::*.
-	  [ruby-core:75504] [Bug #12381]
-
-	* test/openssl/test_pkey_dh.rb, test/openssl/test_pkey_dsa.rb,
-	  test/openssl/test_pkey_ec.rb, test/openssl/test_pkey_rsa.rb: Test they
-	  actually copy the OpenSSL objects, and modifications to cloned object
-	  don't affect the original object.
-
-Sun Jun 19 16:55:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/test_dir_m17n.rb: Skip tests with non-UTF-8 encodings
-	  on cygwin. Cygwin can use the Unicode PUA (private use area) to store
-	  bytes from non-UTF-8 filenames (see
-	  https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-specialchars),
-	  but we are not supporting this. [Bug #12443]
-
-Sun Jun 19 15:01:18 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* localeinit.c: Fix filesystem encoding for cygwin to UTF-8 (see
-	  https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-unusual)
-
-Sun Jun 19 14:31:07 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_pkey.h, ext/openssl/ossl_pkey_dh.c,
-	  ext/openssl/ossl_pkey_dsa.c, ext/openssl/ossl_pkey_rsa.c: A few days
-	  ago, OpenSSL changed {DH,DSA,RSA}_get0_*() to take const BIGNUM **.
-	  https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=fd809cfdbd6e32b6b67b68c59f6d55fbed7a9327
-	  [ruby-core:75225] [Feature #12324]
-
-Sun Jun 19 11:19:43 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (rb_path_to_class): consider the string length
-	  instead of a terminator.
-
-	* variable.c (rb_path_to_class): search the constant at once
-	  instead of checking if defined and then getting it.
-
-Sat Jun 18 14:01:40 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/rubygems/test_gem_installer.rb: Fixed broken test with extension
-	  build. https://github.com/rubygems/rubygems/pull/1645
-
-Sat Jun 18 13:59:54 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems
-	  HEAD(2c6d256). It contains to update vendored Molinillo to 0.5.0.
-	  https://github.com/rubygems/rubygems/pull/1638
-
-Sat Jun 18 10:13:37 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (build-ext), ext/extmk.rb: use variable EXTENCS
-	  different than ENCOBJS, to get rid of circular dependency.
-	  build libencs when linking encodings statically.
-	  [ruby-core:75618] [Bug #12401]
-
-Sat Jun 18 08:52:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_getline): fix pointer index
-	  overflow.  reported by Guido Vranken <guido AT guidovranken.nl>.
-
-Thu Jun 16 16:35:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* class.c (Init_class_hierarchy): prevent rb_cObject which is the
-	  class tree root, from GC.  [ruby-dev:49666] [Bug #12492]
-
-Thu Jun 16 12:17:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (tr_trans): adjust buffer size by processed and rest
-	  lengths, instead of doubling repeatedly.
-
-Thu Jun 16 11:15:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (tr_trans): consider terminator length and fix heap
-	  overflow.  reported by Guido Vranken <guido AT guidovranken.nl>.
-
-Thu Jun 16 00:02:32 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_ocsp.c (ossl_ocspreq_verify, ossl_ocspbres_verify):
-	  Use ossl_clear_error() so that they don't print warnings to stderr and
-	  leak errors in the OpenSSL error queue. Also, check the return value
-	  of OCSP_*_verify() correctly. They can return -1 on verification
-	  failure.
-
-Wed Jun 15 19:52:23 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_ocsp.c (ossl_ocspreq_sign, ossl_ocspbres_sign): Allow
-	  specifying hash algorithm used in signing. They are hard coded to use
-	  SHA-1.
-	  Based on a patch provided by Tim Shirley <tidoublemy@gmail.com>.
-	  [ruby-core:70915] [Feature #11552] [GH ruby/openssl#28]
-
-	* test/openssl/test_ocsp.rb: Test sign-verify works.
-
-Wed Jun 15 01:46:16 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c: [DOC] fix rdoc directive, and an example of negative
-	  value.  [ruby-core:76025] [Bug #12487]
-
-Wed Jun 15 01:44:42 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/mkconfig.rb: provide Unicode Version information as
-	  RbConfig::CONFIG['UNICODE_VERSION'].
-	  [ruby-core:75845] [Feature #12460]
-
-Wed Jun 15 00:01:18 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* test/ruby/enc/test_case_comprehensive.rb
-	  (TestComprehensiveCaseFold::read_data): use \A and \z instead of
-	  ^ and $ in regexp.
-
-Tue Jun 14 23:43:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/backward.h (rb_cFixnum, rb_cBignum): remove the
-	  backward compatibility macros, to fail incompatible extension
-	  libraries early.  [Bug #12427]
-
-Tue Jun 14 22:22:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* strftime.c (rb_strftime_with_timespec): limit the result string
-	  size by the format length, to get rid of unlimited memory use.
-
-Tue Jun 14 22:11:11 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_ocsp.c (ossl_ocspcid_get_issuer_name_hash,
-	  ossl_ocspcid_get_issuer_key_hash, ossl_ocspcid_get_hash_algorithm):
-	  Add accessor methods OCSP::CertificateId#issuer_name_hash,
-	  #issuer_key_hash, #hash_algorithm.
-	  Based on a patch provided by Paul Kehrer <paul.l.kehrer@gmail.com>.
-	  [ruby-core:48062] [Feature #7181]
-
-	* test/openssl/test_ocsp.rb: Test these new methods.
-
-Tue Jun 14 22:07:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/date/date_strftime.c (date_strftime_with_tmx): reject too
-	  large precision to get rid of buffer overflow.
-	  reported by Guido Vranken <guido AT guidovranken.nl>.
-
-Tue Jun 14 21:40:42 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_ocsp.c (ossl_ocspbres_to_der, ossl_ocspcid_to_der):
-	  Implement #to_der methods for OCSP::BasicResponse and
-	  OCSP::CertificateId.
-
-	  (ossl_ocspreq_initialize, ossl_ocspres_initialize): Use GetOCSP*()
-	  instead of raw DATA_PTR().
-
-	  (ossl_ocspbres_initialize, ossl_ocspcid_initialize): Allow
-	  initializing from DER string.
-
-	  (Init_ossl_ocsp): Define new #to_der methods.
-
-	* test/openssl/test_ocsp.rb: Test these changes. Also add missing tests
-	  for OCSP::{Response,Request}#to_der.
-
-Tue Jun 14 21:35:00 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/openssl_missing.h (DH_set0_pqg, RSA_set0_key):
-	  DH_set0_pqg() allows 'q' to be NULL. Fix a typo in RSA_set0_key().
-	  Fixes r55285.  [ruby-core:75225] [Feature #12324]
-
-Mon Jun 14 10:19:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* NEWS: describe Integer#digits.
-
-Mon Jun 13 21:09:40 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* thread.c (debug_deadlock_check): show thread lock dependency and
-	  backtrace [Feature #8214] [ruby-dev:47217]
-
-	* thread.c (thread_status_name): show "sleep_forever" instead of
-	  "sleep" if called from inspect.
-
-Mon Jun 13 20:50:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (reg_named_capture_assign_iter): remove named capture
-	  conflict warnings.  it is just annoying rather than useful.
-	  [ruby-core:75416] [Bug #12359]
-
-Mon Jun 13 20:04:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* numeric.c (rb_int_digits, rb_fix_digits, rb_int_digits_bigbase):
-	  Add Integer#digits to extract columns in place-value notation
-	  [Feature #12447] [ruby-core:75799]
-
-	* test/ruby/test_integer.rb: Add tests for the above change.
-
-	* test/ruby/test_bignum.rb: ditto.
-
-Mon Jun 13 20:34:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (RUBY_INTEGER_UNIFICATION): macro to tell if
-	  Integer is integrated.  [ruby-core:75718][Bug #12427]
-
-	* include/ruby/backward.h, internal.h (rb_cFixnum, rb_cBignum):
-	  fallback to rb_cInteger.
-
-	* bignum.c, numeric.c, ext/json/generator/generator.{c,h}: use the
-	  macro.
-
-Mon Jun 13 16:58:53 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive.rb: Add tests for full Unicode
-	  swapcase.
-
-Sun Jun 12 14:48:00 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive.rb: Add tests for ASCII-only
-	  swapcase; store calculated values in hashes.
-
-Sun Jun 12 14:05:45 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_cipher.c (ossl_cipher_get_auth_tag,
-	  ossl_cipher_set_auth_tag): Check if the cipher flags retrieved by
-	  EVP_CIPHER_CTX_flags() includes EVP_CIPH_FLAG_AEAD_CIPHER to see if
-	  the cipher supports AEAD. AES-GCM was the only supported in OpenSSL
-	  1.0.1.
-
-	  (Init_ossl_cipher): Fix doc; OpenSSL::Cipher::AES.new(128, :GCM) can't
-	  work.
-
-	* ext/openssl/openssl_missing.h: Define EVP_CTRL_AEAD_{GET,SET}_TAG if
-	  missing. They are added in OpenSSL 1.1.0, and have the same value as
-	  EVP_CTRL_GCM_{GET,SET}_TAG and EVP_CTRL_CCM_{GET,SET}_TAG.
-
-Sun Jun 12 13:47:42 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* test/openssl/test_engine.rb (test_openssl_engine_builtin,
-	  test_openssl_engine_by_id_string): Skip test if 'openssl' engine is
-	  already loaded. And test the number increased by Engine.load{_by_id,},
-	  not the total count of loaded engines. Previously, we called
-	  OpenSSL::Engine.cleanup every time running a test case, but we no
-	  longer can do it.
-	  [ruby-core:75225] [Feature #12324]
-
-Sun Jun 12 09:24:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (append_fspath): normalize directory name to be appended
-	  on OS X.  [ruby-core:75957] [Ruby trunk Bug#12483]
-	  https://github.com/rails/rails/issues/25303#issuecomment-224834804
-
-Sat Jun 11 23:07:32 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* lib/forwardable.rb (_delegator_method): get rid of a warning which
-	  causes test failures introduced at r55376.
-
-Sat Jun 11 18:37:58 2016  Marcus Stollsteimer  <sto.mar@web.de>
-
-	* ext/json/lib/*.rb: Removed some comments. Because these are unnecessary
-	  class description. [ci skip][Bug #12255][ruby-core:74835]
-
-Sat Jun 11 15:19:38 2016  takiy33  <takiy33@users.noreply.github.com>
-
-	* lib/net/smtp.rb: [DOC] Remove dead link on documentation for
-	  Japanese of SMTP.  [Fix GH-1380]
-
-Sat Jun 11 15:02:45 2016  Grant Hutchins  <github@nertzy.com>
-
-	* string.c (rb_str_oct): [DOC] fix typo, hornored -> honored.
-	  [Fix GH-1379]
-
-Sat Jun 11 14:04:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/objspace/objspace_dump.c: generate valid JSON for dump_all.
-
-Sat Jun 11 13:52:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/forwardable.rb (_delegator_method): remove __send__ call if
-	  possible, so that more optimizations will be enabled.
-
-Sat Jun 11 11:24:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* enc/iso_8859.h (SHARP_s): name frequently used codepoint.
-
-Sat Jun 11 09:58:45 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_1.c: Revert to older version of code.
-
-Sat Jun 11 09:46:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/iso_8859_1.c: Implement non-ASCII case mapping.
-
-	* test/ruby/enc/test_case_comprehensive.rb: Tests for above.
-
-	* string.c: Add iso-8859-1 to supported encodings.
-
-Sat Jun 11 09:31:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/forwardable.rb (_delegator_method): leave the backtrace
-	  untouched during accessor.  forwardable.rb does not appear in
-	  the backtrace during delegated method because of tail-call
-	  optimization.
-
-Sat Jun 11 01:38:31 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* include/ruby/defines.h (GCC_VERSION_SINCE): Fix logic error by
-	  adding parentheses. Fix failures of TestMkmf::TestConvertible
-	  with GCC 3.4.3 on Solaris 10. [Bug #12479] [ruby-dev:49660]
-
-Fri Jun 10 21:54:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/forwardable.rb (Forwardable._delegator_method): extract
-	  method generator and deal with non-module objects.
-	  [ruby-dev:49656] [Bug #12478]
-
-Fri Jun 10 17:35:11 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: Special-case :ascii option in rb_str_capitalize_bang and
-	  rb_str_swapcase_bang.
-
-Fri Jun 10 17:12:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: Special-case :ascii option in rb_str_upcase_bang (retry).
-
-Fri Jun 10 14:48:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* hash.c (get_env_cstr): ensure NUL-terminated.
-	  [ruby-dev:49655] [Bug #12475]
-
-	* string.c (rb_str_fill_terminator): return the pointer to the
-	  NUL-terminated content.
-
-Thu Jun  9 21:42:00 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_asn1.c (asn1integer_to_num): Use
-	  ASN1_ENUMERATED_to_BN() to convert an ASN1_ENUMERATED to a BN.
-	  Starting from OpenSSL 1.1.0, ASN1_INTEGER_to_BN() rejects
-	  non-ASN1_INTEGER objects. The format of INTEGER and ENUMERATED are
-	  almost identical so they behaved in the same way in OpenSSL <= 1.0.2.
-	  [ruby-core:75225] [Feature #12324]
-
-	* test/openssl/test_asn1.rb (test_decode_enumerated): Test that it
-	  works.
-
-Thu Jun  9 21:10:04 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* tool/ifchange: fix timestamp error when target without
-	  directory.
-
-Thu Jun  9 19:46:22 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_ssl.c: Add define guards for OPENSSL_NO_EC.
-	  SSL_CTX_set_ecdh_auto() is defined even when ECDH is disabled in
-	  OpenSSL's configuration. This fixes r55214.
-
-	* test/openssl/test_pair.rb (test_ecdh_curves): Skip if the OpenSSL does
-	  not support ECDH.
-
-	* test/openssl/utils.rb (start_server): Ignore error in
-	  SSLContext#ecdh_curves=.
-
-Thu Jun  9 18:12:42 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* Makefile.in (un-runnable): fail with proper error message.
-	  [ruby-core:75905] [Bug #12472]
-
-Thu Jun  9 15:32:17 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (RBCONFIG): use ifchange tool to see if the content is
-	  changed and update the timestamp file.
-
-	* tool/mkconfig.rb: remove ifchange features.
-
-	* tool/ifchange: make target directory if it does not exist with
-	  its parent directories.
-
-	* win32/ifchange.bat: drop support for command.com used on old
-	  systems.
-
-Thu Jun  9 15:03:35 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/extconf.rb: Check for CRYPTO_malloc() and SSL_new().
-	  OpenSSL_add_all_digests() and SSL_library_init() are deprecated and
-	  converted to macros in OpenSSL 1.1.0.
-	  [ruby-core:75225] [Feature #12324]
-
-Wed Jun  8 23:09:51 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* string.c (rb_str_ascii_casemap): fix compile error.
-
-Wed Jun  8 22:22:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: Revert previous commit (possibility of endless loop).
-
-Wed Jun  8 21:57:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: Special-case :ascii option in rb_str_upcase_bang.
-
-Wed Jun  8 21:28:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: New static function rb_str_ascii_casemap; special-casing
-	  :ascii option in rb_str_upcase_bang and rb_str_downcase_bang.
-
-	* regenc.c: Fix a bug (wrong use of unnecessary slack at end of string).
-
-	* regenc.h -> include/ruby/oniguruma.h: Move declaration of
-	  onigenc_ascii_only_case_map so that it is visible in string.c.
-
-Wed Jun  8 20:33:44 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* include/ruby/intern.h: Remove excess semicolons in PUREFUNC().
-	  Fix failure of TestMkmf::TestConvertible on Solaris with
-	  Oracle Solaris Studio 12. [ruby-dev:49651] [Bug #12470]
-	* internal.h: ditto.
-
-Wed Jun  8 16:03:09 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* lib/net/smtp.rb (getok, get_response): raise an ArgumentError when
-	  CR or LF is included in a line, because they are not allowed in
-	  RFC5321.  Thanks, Jeremy Daer.
-
-Tue Jun  7 21:27:25 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* test/rubygems/*_{cert,cert_32}.pem: Regenerate test certificates for
-	  OpenSSL 1.1.0. This is already in upstream.
-	  https://github.com/rubygems/rubygems/commit/9be5c53939440a61c4bba73cfffbeb5cfadf72be
-	  [ruby-core:75225] [Feature #12324]
-
-Tue Jun  7 21:27:17 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* test/open-uri/test_ssl.rb: Regenerate test certificates. The test CA
-	  certificate was incorrectly generated. A CA certificate must have the
-	  basic constraints extension with cA bit set to TRUE. OpenSSL <= 1.0.2
-	  allowed the error when the certificate is in the trusted store but
-	  OpenSSL 1.1.0 no longer does.
-	  [ruby-core:75225] [Feature #12324]
-
-Tue Jun  7 21:20:38 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* test/openssl/test_x509name.rb: Don't register OID for 'emailAddress'
-	  and 'serialNumber'. A recent change in OpenSSL made OBJ_create()
-	  reject an already existing OID. They were needed to run tests with
-	  OpenSSL 0.9.6 which is now unsupported.
-	  https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=52832e470f5fe8c222249ae5b539aeb3c74cdb25
-	  [ruby-core:75225] [Feature #12324]
-
-	* test/openssl/test_ssl_session.rb (test_server_session): Duplicate
-	  SSL::Session before re-adding to the session store. OpenSSL 1.1.0
-	  starts rejecting SSL_SESSION once removed by SSL_CTX_remove_session().
-	  https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=7c2d4fee2547650102cd16d23f8125b76112ae75
-
-	* test/openssl/test_pkey_ec.rb (setup): Remove X25519 from @keys. X25519
-	  is new in OpenSSL 1.1.0 but this is for key agreement and not for
-	  signing.
-
-	* test/openssl/test_pair.rb, test/openssl/test_ssl.rb,
-	  test/openssl/utils.rb: Set security level to 0 when using aNULL cipher
-	  suites.
-
-	* test/openssl/utils.rb: Use 1024 bits DSA key for client certificates.
-
-	* test/openssl/test_engine.rb: Run each test in separate process.
-	  We can no longer cleanup engines explicitly as ENGINE_cleanup() was
-	  removed.
-	  https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=6d4fb1d59e61aacefa25edc4fe5acfe1ac93f743
-
-	* ext/openssl/ossl_engine.c (ossl_engine_s_cleanup): Add a note to the
-	  RDoc for Engine.cleanup.
-
-	* ext/openssl/lib/openssl/digest.rb: Don't define constants for DSS,
-	  DSS1 and SHA(-0) when using with OpenSSL 1.1.0. They are removed.
-
-	* test/openssl/test_digest.rb, test/openssl/test_pkey_dsa.rb,
-	  test/openssl/test_pkey_dsa.rb, test/openssl/test_ssl.rb,
-	  test/openssl/test_x509cert.rb, test/openssl/test_x509req.rb: Don't
-	  test unsupported hash functions.
-
-Tue Jun  7 17:49:52 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive: Change test for encodings
-	  without any non-ASCII case conversions from ASCII-only test
-	  to full test.
-
-Tue Jun  7 17:18:39 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c (rb_str_upcase_bang, rb_str_capitalize_bang,
-	  rb_str_swapcase_bang): Switch to use primitive.
-
-Tue Jun  7 16:44:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c (rb_str_downcase_bang): Switch to use primitive except if
-	  conversion can be done ASCII-only.
-
-Tue Jun  7 16:13:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive: Add regression tests for
-	  current ASCII-only case conversion.
-
-Tue Jun  7 15:28:38 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive: Fix method name
-	  (generate_casefold_tests -> generate_case_mapping_tests).
-
-Tue Jun  7 15:05:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* regenc.h/c: Rename onigenc_not_support_case_map to
-	  onigenc_ascii_only_case_map.
-
-	* regenc.h: Add definition of onigenc_single_byte_ascii_only_case_map.
-
-	* enc/iso_8859_X.c, windows_125X.c, ascii.c, us-ascii.c, koi8_x.c:
-	  Replace onigenc_not_support_case_map by
-	  onigenc_single_byte_ascii_only_case_map.
-
-	* enc/big5.c, cp949.c, emacs_mule.c, euc_X.c, gbX.c, shift_jis.c,
-	  windows_31j.c: Replace onigenc_not_support_case_map by
-	  onigenc_ascii_only_case_map.
-
-Tue Jun  7 14:57:09 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/extconf.rb: Check for SSL_CTX_set_min_proto_version()
-	  macro added in OpenSSL 1.1.0. Version-specific methods, such as
-	  TLSv1_method(), are deprecated in OpenSSL 1.1.0. We need to use
-	  version-flexible methods (TLS_*method() or SSLv23_*method()) and
-	  disable other protocol versions as necessary.
-	  [ruby-core:75225] [Feature #12324]
-
-	* ext/openssl/ossl_ssl.c: Use SSL_CTX_set_{min,max}_proto_version() to
-	  fix the protocol version.
-
-Tue Jun  7 12:55:34 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* regenc.c (onigenc_not_support_case_map): Move to end of file;
-	  (onigenc_single_byte_ascii_only_case_map): Add new function.
-
-Tue Jun  7 09:26:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* regenc.c (onigenc_not_support_case_map): Rewrite to work correctly
-	  in ASCII range.
-
-Mon Jun  6 23:00:00 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* appveyor.yml: Update libressl version to 2.3.5.
-
-Mon Jun  6 18:37:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_throw_start): check if the iseq is symbol
-	  proc, class definition should not be a symbol proc.
-	  [ruby-core:75856] [Bug #12462]
-
-Mon Jun  6 18:36:34 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: Added UTF-16BE/LE and UTF-32BE/LE to supported encodings
-	  for Unicode case mapping.
-
-	* test/ruby/enc/test_case_comprehensive.rb: Tests for above
-	  functionality; fixed an encoding issue in assertion error message.
-
-Mon Jun  6 17:29:35 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive.rb: Speed up testing for small
-	  encodings by preselecting codepoints.
-
-Mon Jun  6 17:10:50 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_cipher.c (ossl_cipher_free): Use EVP_CIPHER_CTX_free()
-	  to free EVP_CIPHER_CTX allocated by EVP_CIPHER_CTX_new().
-	  [ruby-core:75225] [Feature #12324]
-
-Mon Jun  6 13:37:08 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c Change rb_str_casemap to use encoding primitive
-	  case_map instead of directly calling onigenc_unicode_case_map.
-
-Mon Jun  6 13:16:46 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_mapping.rb:
-	  Remove :lithuanian guard for Unicode case mapping.
-
-Mon Jun  6 10:39:56 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/openssl_missing.h: Include ruby/config.h. r55285 added
-	  some inline functions but VC does not recognize 'inline' keyword.
-
-Mon Jun  6 09:25:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (thread_start_func_2): report raised exception if
-	  report_on_exception flag is set.  [Feature #6647]
-
-Mon Jun  6 01:36:24 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/extconf.rb: Check existence of SSL_is_server(). This
-	  function was introduced in OpenSSL 1.0.2.
-	  [ruby-core:75225] [Feature #12324]
-
-	* ext/openssl/openssl_missing.h: Implement SSL_is_server() if missing.
-
-	* ext/openssl/ossl_ssl.c (ssl_info_cb): Use SSL_is_server() to see if
-	  the SSL is server. The state machine in OpenSSL was rewritten and
-	  SSL_get_state() no longer returns SSL_ST_ACCEPT.
-
-	  (ossl_ssl_cipher_to_ary, ossl_sslctx_session_get_cb): Add some
-	  `const`s to suppress warning.
-
-Mon Jun  6 01:18:10 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_asn1.c (decode_bool): Do the same thing as
-	  d2i_ASN1_BOOLEAN() does by ourselves. This function is removed in
-	  OpenSSL 1.1.0.
-	  [ruby-core:75225] [Feature #12324]
-
-Mon Jun  6 00:34:16 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/extconf.rb: Check existence of accessor functions that
-	  don't exist in OpenSSL 0.9.8. OpenSSL 1.1.0 made most of its
-	  structures opaque and requires use of these accessor functions.
-	  [ruby-core:75225] [Feature #12324]
-
-	* ext/openssl/openssl_missing.[ch]: Implement them if missing.
-
-	* ext/openssl/ossl*.c: Use these accessor functions.
-
-	* test/openssl/test_hmac.rb: Add missing test for HMAC#reset.
-
-Mon Jun  6 00:00:13 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/openssl_missing.[ch]: Implement EVP_PKEY_get0_*() and
-	  {RSA,DSA,EC_KEY,DH}_get0_*() functions.
-	  OpenSSL 1.1.0 makes EVP_PKEY/RSA/DSA/DH opaque. We used to provide
-	  setter methods for each parameter of each PKey type, for example
-	  PKey::RSA#e=, but this is no longer possible because the new API
-	  RSA_set0_key() requires the 'n' at the same time. This commit adds
-	  deprecation warning to them and adds PKey::*#set_* methods as direct
-	  wrapper for those new APIs. For example, 'rsa.e = 3' now needs to be
-	  rewritten as 'rsa.set_key(rsa.n, 3, rsa.d)'.
-	  [ruby-core:75225] [Feature #12324]
-
-	* ext/openssl/ossl_pkey*.[ch]: Use the new accessor functions. Implement
-	  RSA#set_{key,factors,crt_params}, DSA#set_{key,pqg}, DH#set_{key,pqg}.
-	  Emit a warning with rb_warning() when old setter methods are used.
-
-	* test/drb/ut_array_drbssl.rb, test/drb/ut_drb_drbssl.rb,
-	  test/rubygems/test_gem_remote_fetcher.rb: Don't set a priv_key for DH
-	  object that are used in tmp_dh_callback. Generating a new key pair
-	  every time should be fine - actually the private exponent is ignored
-	  in OpenSSL >= 1.0.2f/1.0.1r even if we explicitly set.
-	  https://www.openssl.org/news/secadv/20160128.txt
-
-Sun Jun  5 22:06:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* configure.in: Fix the timing to detect the appropriate C++ compiler
-	  in OS X.
-
-Sun Jun  5 21:42:24 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/extconf.rb: Check absence of CRYPTO_lock() to see if the
-	  OpenSSL has the new threading API. In OpenSSL <= 1.0.2, an application
-	  had to set locking callbacks to use OpenSSL in a multi-threaded
-	  environment. OpenSSL 1.1.0 now finds pthreads or Windows threads so we
-	  don't need to do something special.
-	  [ruby-core:75225] [Feature #12324]
-
-	  Also check existence of *_up_ref(). Some structures in OpenSSL have
-	  a reference counter. We used to increment it with CRYPTO_add() which
-	  is a part of the old API.
-
-	* ext/openssl/openssl_missing.h: Implement *_up_ref() if missing.
-
-	* ext/openssl/ossl.c: Don't set locking callbacks if unneeded.
-
-	* ext/openssl/ossl_pkey.c, ext/openssl/ossl_ssl.c,
-	  ext/openssl/ossl_x509cert.c, ext/openssl/ossl_x509crl.c,
-	  ext/openssl/ossl_x509store.c: Use *_up_ref() instead of CRYPTO_add().
-
-Sun Jun  5 21:38:13 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/extconf.rb: Check if RAND_pseudo_bytes() is usable. It is
-	  marked as deprecated in OpenSSL 1.1.0.
-	  [ruby-core:75225] [Feature #12324]
-
-	* ext/openssl/ossl_rand.c: Disable Random.pseudo_bytes if
-	  RAND_pseudo_bytes() is unavailable.
-
-	* test/openssl/test_random.rb: Don't test Random.pseudo_bytes if not
-	  defined.
-
-Sun Jun  5 19:06:40 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* NEWS: Add news about Unicode-wide case mapping for
-	  String/Symbol#upcase/downcase/swapcase/capitalize(!).
-
-Sun Jun  5 15:24:33 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive.rb:
-	  Remove :lithuanian guard for Unicode case mapping.
-
-Sun Jun  5 14:46:34 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: Remove :lithuanian guard for Unicode case mapping.
-
-Sat Jun  4 10:54:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* missing/crypt.h (struct crypt_data): remove unnecessary member
-	  "initialized".
-
-	* missing/crypt.c (des_setkey_r): nothing to be initialized in
-	  crypt_data.
-
-	* configure.in (struct crypt_data): check for "initialized" in
-	  struct crypt_data, which may be only in glibc, and isn't on AIX
-	  at least.
-
-Sat Jun  4 10:38:39 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c: unify MAX_PATH, _MAX_PATH, and MAXPATHLEN to
-	  PATH_MAX, except for MAX_PATH in get_special_folder for an API
-	  limit.
-
-Fri Jun  3 21:27:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (process_options): rb_str_conv_enc() never set encoding
-	  of the source string, but returns the string itself if the
-	  conversion failed.  then the instance variable does not need to
-	  be set again.
-
-Fri Jun  3 18:04:37 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ruby.c (process_options): need to duplicate path before passing it to
-	  rb_str_conv_enc() because the function might call rb_enc_associate()
-	  internally.  this fixes test failures on Windows introduced at r55260.
-
-Fri Jun  3 17:44:25 2016  Reiner Herrmann  <reiner@reiner-h.de>
-
-	* lib/mkmf.rb (create_makefile): sort lists of source and object
-	  files in generated Makefile, unless given by extconf.rb.
-	  [Fix GH-1367]
-
-Thu Jun  2 21:18:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/win32.c (get_special_folder): use SHGetPathFromIDListEx if
-	  available instead of old SHGetPathFromIDListW, to check the
-	  buffer size.
-
-Thu Jun  2 17:05:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (ruby_init_loadpath_safe): remove MAXPATHLEN restriction
-	  for Windows 10.
-
-Thu Jun  2 16:51:35 2016  Koichi ITO  <koic.ito@gmail.com>
-
-	* misc/ruby-mode.el (ruby-here-doc-beg-re),
-	  (ruby-here-doc-beg-match, ruby-parse-partial): Support for
-	  `squiggly heredoc' syntax in ruby-mode.  [Fix GH-1372]
-
-Thu Jun  2 10:24:48 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: Raise ArgumentError when invalid string is detected in
-	  case mapping methods.
-
-	* enc/unicode.c: Check for invalid string and signal with negative
-	  length value.
-
-	* test/ruby/enc/test_case_mapping.rb: Add tests for above.
-
-	* test/ruby/test_m17n_comb.rb: Add a message to clarify test failure.
-
-Wed Jun  1 21:41:05 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/extconf.rb: Check existence of ASN1_TIME_adj(). The old
-	  ASN1_TIME_set() is not Year 2038 ready on sizeof(time_t) == 4
-	  environment. This function was added in OpenSSL 1.0.0.
-	  [ruby-core:45552] [Bug #6571]
-
-	* ext/openssl/ossl_asn1.c (ossl_time_split): Added. Split the argument
-	  (Time) into the number of days elapsed since the epoch and the
-	  remainder seconds to conform to ASN1_TIME_adj().
-	  (obj_to_asn1utime, obj_to_asn1gtime): Use ossl_time_split() and
-	  ASN1_*TIME_adj().
-
-	* ext/openssl/ossl_asn1.h: Add the function prototype for
-	  ossl_time_split().
-
-	* ext/openssl/ossl_x509.[ch]: Add ossl_x509_time_adjust(). Similarly to
-	  obj_to_asn1*time(), use X509_time_adj_ex() instead of X509_time_adj().
-
-	* ext/openssl/ossl_x509cert.c, ext/openssl/ossl_x509crl.c,
-	  ext/openssl/ossl_x509revoked.c: Use ossl_x509_time_adjust().
-
-Wed Jun  1 15:58:20 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: revert r55237.  replace crypt, not crypt_r, and
-	  check if crypt is broken more.
-
-	* missing/crypt.c: move crypt_r.c
-
-	* string.c (rb_str_crypt): use crypt_r if provided by the system.
-
-Wed Jun  1 14:07:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* missing/crypt_r.c (a64toi): initialize statically and fix out of
-	  bounds access when salt is not 7bit clean.
-
-Wed Jun  1 11:34:59 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/Makefile.sub (MISSING): fixed build error introduced at r55237.
-
-Wed Jun  1 09:48:06 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_crypt): use reentrant crypt_r.
-
-Wed Jun  1 09:37:26 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* missing/crypt.c (des_setkey): void function never returns any value.
-
-Wed Jun  1 09:16:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* crypt.h: separate header file from missing/crypt.c.
-
-	* missing/crypt.c (crypt_r, setkey_r, encrypt_r): add reentrant
-	  versions.
-
-Wed Jun  1 02:25:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* missing/crypt.c: fix size macros to use configured values
-	  for platforms long is larger than 32bit.
-	  [ruby-core:75792] [Bug #12446]
-
-Tue May 31 17:28:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser::Completion.candidate): get rid of
-	  nil as key names.  [ruby-core:75773] [Bug #12438]
-
-	* lib/optparse.rb (OptionParser#make_switch): char class option
-	  cannot be NoArgument, default to RequiredArgument.
-
-Tue May 31 00:30:11 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/socket/raddrinfo.c (host_str, port_str): Use StringValueCStr
-	  instead of (Safe)StringValue, to detect NUL byte in the string.
-
-Mon May 30 22:02:01 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_asn1.c (time_to_time_t): Use NUM2TIMET() instead of
-	  NUM2LONG(). time_t may be larger than long.
-	  [ruby-core:45552] [Bug #6571]
-
-Mon May 30 21:15:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: Document current behavior for other case mapping methods
-	  on String. [ci skip]
-
-Mon May 30 20:00:25 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: Document current situation for String#downcase. [ci skip]
-
-Mon May 30 18:29:28 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_ssl.c (ossl_sslctx_s_alloc): Enable the automatic
-	  curve selection for ECDH by calling SSL_CTX_set_ecdh_auto(). With
-	  this a TLS server automatically selects a curve which both the client
-	  and the server support to use in ECDH. This changes the default
-	  behavior but users can still disable ECDH by excluding 'ECDH' cipher
-	  suites from the cipher list (with SSLContext#ciphers=). This commit
-	  also deprecate #tmp_ecdh_callback=. It was added in Ruby 2.3.0. It
-	  wraps SSL_CTX_set_tmp_ecdh_callback() which will be removed in OpenSSL
-	  1.1.0. Its callback receives two values 'is_export' and 'keylength'
-	  but both are completely useless for determining a curve to use in
-	  ECDH. The automatic curve selection was introduced to replace this.
-
-	  (ossl_sslctx_setup): Deprecate SSLContext#tmp_ecdh_callback=. Emit a
-	  warning if this is in use.
-
-	  (ossl_sslctx_set_ecdh_curves): Add SSLContext#ecdh_curves=. Wrap
-	  SSL_CTX_set1_curves_list(). If it is not available, this falls back
-	  to SSL_CTX_set_tmp_ecdh().
-
-	  (Init_ossl_ssl): Define SSLContext#ecdh_curves=.
-
-	* ext/openssl/extconf.rb: Check the existence of EC_curve_nist2nid(),
-	  SSL_CTX_set1_curves_list(), SSL_CTX_set_ecdh_auto() and
-	  SSL_CTX_set_tmp_ecdh_callback().
-
-	* ext/openssl/openssl_missing.[ch]: Implement EC_curve_nist2nid() if
-	  missing.
-
-	* test/openssl/test_pair.rb (test_ecdh_callback): Use
-	  EnvUtil.suppress_warning to suppress deprecated warning.
-
-	  (test_ecdh_curves): Test that SSLContext#ecdh_curves= works.
-
-	* test/openssl/utils.rb (start_server): Use SSLContext#ecdh_curves=.
-
-Mon May 30 16:28:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/raddrinfo.c (host_str, port_str): use RSTRING_LEN
-	  instead of strlen, since RSTRING_PTR StringValueCStr may not be
-	  NUL-terminated when SHARABLE_MIDDLE_SUBSTRING=1.  reported by
-	  @tmtms, http://twitter.com/tmtms/status/736910516229005312
-
-Mon May 30 16:20:26 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (str_fill_term): return new pointer reallocated by
-	  filling terminator.
-
-Mon May 30 14:54:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (enc_subseq): share the return value and
-	  the buffer as possible.
-
-Mon May 30 14:50:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (str_substr, rb_str_aref): refactor not to create
-	  unnecessary empty string.
-
-	* string.c (str_byte_substr, str_byte_aref): ditto.
-
-Mon May 30 00:09:37 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/-test-/auto_ext.rb: fixed a heedless bug introduced at r55198.
-	  this change will make RubyCI green.
-
-Sun May 29 22:58:19 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regexec.c (ONIGENC_IS_MBC_ASCII_WORD): redefine optimized one.
-	  WORD of Ruby's ascii compatible encoding is always [a-zA-Z0-9_].
-
-Sun May 29 22:44:19 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regexec.c (match_at): make compilers optimize harder.
-
-Sun May 29 12:08:42 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/-test-/auto_ext.rb (auto_ext): utility method to create
-	  extension libraries for tests.
-
-Sat May 28 20:40:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* misc/ruby-additional.el (ruby-insert-heredoc-code-block): insert
-	  here document code block for assert_separately mainly.
-
-Sat May 28 20:34:19 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/test_unicode_normalize.rb: Add test to check for availability of
-	  Unicode data file; refactoring; fix an error with tests for destructive
-	  method (unicode_normalize!).
-
-Sat May 28 19:08:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive.rb: Add error messages to tests
-	  for data file availability; refactoring.
-
-Sat May 28 14:00:10 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/lib/openssl/ssl.rb (SSLSocket): Move the implementation of
-	  SSLSocket#initialize to C. Initialize the SSL (OpenSSL object) in it.
-	  Currently this is delayed until ossl_ssl_setup(), which is called from
-	  SSLSocket#accept or #connect. Say we call SSLSocket#hostname= with an
-	  illegal value. We expect an exception to be raised in #hostname= but
-	  actually we get it in the later SSLSocket#connect. Because the SSL is
-	  not ready at #hostname=, the actual call of SSL_set_tlsext_host_name()
-	  is also delayed.
-	  This also fixes: [ruby-dev:49376] [Bug #11724]
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_initialize): Added. Almost the same
-	  as the Ruby version but this instantiate the SSL object at the same
-	  time.
-
-	  (ossl_ssl_setup): Adjust to the changes. Just set the underlying IO to
-	  the SSL.
-
-	  (ssl_started): Added. Make use of SSL_get_fd(). This returns -1 if not
-	  yet set by SSL_set_fd().
-
-	  (ossl_ssl_data_get_struct): Removed. Now GetSSL() checks that the SSL
-	  exists.
-
-	  (ossl_ssl_set_session): Don't call ossl_ssl_setup() here as now the
-	  SSL is already instantiated in #initialize.
-
-	  (ossl_ssl_shutdown, ossl_start_ssl, ossl_ssl_read_internal,
-	   ossl_ssl_write_internal, ossl_ssl_stop, ossl_ssl_get_cert,
-	   ossl_ssl_get_peer_cert, ossl_ssl_get_peer_cert_chain,
-	   ossl_ssl_get_version, ossl_ssl_get_cipher, ossl_ssl_get_state,
-	   ossl_ssl_pending, ossl_ssl_session_reused,
-	   ossl_ssl_get_verify_result, ossl_ssl_get_client_ca_list,
-	   ossl_ssl_npn_protocol, ossl_ssl_alpn_protocol, ossl_ssl_tmp_key): Use
-	  GetSSL() instead of ossl_ssl_data_get_struct(). Use ssl_started().
-
-	  (Init_ossl_ssl): Add method declarations of SSLSocket#{initialize,
-	  hostname=}.
-
-	* ext/openssl/ossl_ssl.h (GetSSL): Check that the SSL is not NULL. It
-	  should not be NULL because we now set it in #initialize.
-
-	* ext/openssl/ossl_ssl_session.c (ossl_ssl_session_initialize): No need
-	  to check if the SSL is NULL.
-
-Sat May 28 10:47:40 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* gems/bundled_gems: Update latest releases, power_assert-0.3.0,
-	  test-unit 3.1.9, minitest 5.9.0, did_you_mean 1.0.1
-
-Sat May 28 10:45:40 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* addr2line.c: drop support for ATARI ST platform. It was
-	  discontinued more than two decades ago. [fix GH-1350] Patch by
-	  @cremno
-	* include/ruby/ruby.h: ditto.
-	* io.c: ditto.
-
-Sat May 28 10:39:47 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive.rb: Converted exception for
-	  unavailable Unicode data files to failed assertion.
-
-Sat May 28 10:26:18 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/cgi/util.rb: added missing quote.
-	  [fix GH-1363][ci skip] Patch by @dwaller
-
-Fri May 27 17:38:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (rb_local_constants_i): exclude hidden constants.
-	  [ruby-core:75575] [Bug #12389]
-
-Fri May 27 17:09:44 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* transcode.c (str_transcode0): scrub in the given encoding when
-	  the source encoding is given, not in the encoding of the
-	  receiver.  [ruby-core:75732] [Bug #12431]
-
-Fri May 27 15:07:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_scan_args): remove nul padding which
-	  caused syntax error if fmt is not a string literal.
-
-	* include/ruby/ruby.h (rb_scan_args_verify): suppress array-bounds
-	  warnings by old clang.
-
-	* include/ruby/ruby.h (rb_scan_args0): make extractor macros
-	  inline functions, which do not validate the format and are
-	  unnecessary to be expanded.
-
-Fri May 27 01:00:36 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* symbol.c (is_identchar): use ISDIGIT instead of rb_enc_isalnum.
-	  Though rb_enc_isalnum is encoding aware function, its argument here
-	  is *m, which is a single byte. Therefore ISDIGIT is faster.
-
-	* symbol.c (is_special_global_name): ditto.
-
-	* symbol.c (rb_enc_symname_type): ditto.
-
-Fri May 27 00:39:40 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_scan_args): add nul padding here to
-	  apply to all references.
-
-	* include/ruby/ruby.h (rb_scan_args_verify): move length mismatch
-	  check outside conditional operators.
-
-Thu May 26 14:21:10 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_pkey_dh.c (ossl_dh_compute_key): Check that the DH
-	  has 'p' (the prime) before calling DH_size(). We can create a DH with
-	  no parameter but DH_size() does not check and dereferences NULL.
-	  [ruby-core:75720] [Bug #12428]
-
-	* ext/openssl/ossl_pkey_dsa.c (ossl_dsa_sign): Ditto. DSA_size() does
-	  not check dsa->q.
-
-	* ext/openssl/ossl_pkey_rsa.c (ossl_rsa_public_encrypt,
-	  ossl_rsa_public_decrypt, ossl_rsa_private_encrypt,
-	  ossl_rsa_private_decrypt): Ditto. RSA_size() does not check rsa->n.
-
-Thu May 26 14:13:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_scan_args_count): verify length with
-	  counting variables together.
-
-Thu May 26 09:45:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_comprehensive.rb: Add set of comprehensive
-	  (across most Unicode characters; later across most character encodings)
-	  tests for case mapping.
-
-Thu May 26 05:00:13 2016  Benoit Daloze  <eregontp@gmail.com>
-
-	* class.c (rb_define_class): Fix documentation.
-
-Wed May 25 20:50:12 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* re.c (unescape_nonascii): scan hex up to only 3 characters.
-	  [Bug #12420] [Bug #12423]
-
-Wed May 25 19:07:19 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Handle DOTLESS_i by hand because it isn't involved in folding.
-
-Wed May 25 18:30:53 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regparse.c (fetch_token_in_cc): raise error if given octal escaped
-	  character is too big. [Bug #12420] [Bug #12423]
-
-Wed May 25 17:45:15 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl, test/openssl: Drop OpenSSL < 0.9.8 support.
-
-Wed May 25 17:43:30 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/openssl_missing.h, ext/openssl/ossl.h: Remove
-	  unnecessary 'extern "C"' blocks. We don't use C++ and these headers
-	  are local to ext/openssl, so there is no need to enclose with it.
-
-Wed May 25 17:42:58 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/extconf.rb: Remove check of OPENSSL_FIPS macro. This is
-	  unneeded because we can check the macro directly in source code,
-	  just as we already do for OPENSSL_NO_* macros.
-
-	* ext/openssl/ossl.c: Replace occurrences of HAVE_OPENSSL_FIPS with
-	  OPENSSL_FIPS.
-
-Wed May 25 17:13:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* class.c (rb_scan_args): merge code for n_trail.
-
-Wed May 25 17:11:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_scan_args_validate): move failed
-	  condition to the terminal.  [ruby-core:75714] [Bug #12426]
-
-Wed May 25 13:13:37 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regcomp.c: remove condition for debug output because prelude
-	  doesn't use regexp now.
-
-Wed May 25 13:10:30 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regcomp.c (compile_length_tree): return error code immediately
-	  if compile_length_tree raised error [Bug #12418]
-
-Wed May 25 08:01:39 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Fix flag error for switch from titlecase to lowercase.
-
-	* test/ruby/enc/test_case_mapping.rb: Tests for above error.
-
-Wed May 25 01:13:55 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_pkey_ec.c (ec_key_new_from_group): Create a new
-	  EC_KEY on given EC group. Extracted from ossl_ec_key_initialize().
-	  (ossl_ec_key_s_generate): Added. Create a new EC instance and
-	  generate a random private and public key.
-	  (ossl_ec_key_initialize): Use ec_key_new_from_group().
-	  (Init_ossl_ec): Define the new method EC.generate. This change is
-	  for consistency with other PKey types.  [ruby-core:45541] [Bug #6567]
-
-	* test/openssl/test_pkey_ec.rb: Test that EC.generate works.
-
-Wed May 25 00:37:16 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_pkey_ec.c (ossl_ec_key_generate_key): Fix up RDoc.
-	  (Init_ossl_ec): Rename EC#generate_key to EC#generate_key!. Make the
-	  old name an alias of #generate_key!. This change is for consistency
-	  with other PKey types.  [ruby-core:45541] [Bug #6567]
-
-	* test/openssl/test_pkey_ec.rb: Use EC#generate_key! instead of
-	  EC#generate_key.
-
-Wed May 25 00:23:05 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_scan_args_set): check the arity after
-	  adjusting argc for an option hash, for optimization in simpler
-	  cases.
-
-Wed May 25 00:21:52 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (XCFLAGS): merge flags only for ruby itself from
-	  ruby_cflags.
-
-Tue May 24 22:04:15 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_cipher.c (ossl_cipher_set_key, ossl_cipher_set_iv):
-	  Reject too long values as well as too short ones. Currently they
-	  just truncate the input but this would hide bugs and lead to
-	  unexpected encryption/decryption results.
-
-	* test/openssl/test_cipher.rb: Test that Cipher#key= and #iv= reject
-	  Strings with invalid length.
-
-Tue May 24 21:32:21 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_x509ext.c (ossl_x509ext_set_value): Use
-	  ASN1_OCTET_STRING_set() instead of M_ASN1_OCTET_STRING_set(). Macros
-	  prefixed by "M_" are discouraged to be used from outside OpenSSL
-	  library[1].
-	  (ossl_x509ext_get_value): Likewise, use ASN1_STRING_print() instead
-	  of M_ASN1_OCTET_STRING_print().
-	  [1] https://git.openssl.org/gitweb/?p=openssl.git;a=blob;f=CHANGES;h=bf61913d7b01212b4d8b2f3c13d71d645914f67c;hb=b6079a7835f61daa9fb2cbf9addfa86049523933#l878
-
-	* ext/openssl/ossl.h: Include openssl/asn1.h instead of
-	  openssl/asn1_mac.h. It just includes openssl/asn1.h and defines some
-	  additional "M_" macros.
-
-Tue May 24 18:52:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_scan_args_verify): verify the format to
-	  scan if no invalid chars and variable argument length matching,
-	  at the compile time if possible.
-
-Tue May 24 17:18:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/defines.h (ERRORFUNC, WARNINGFUNC): add fallback
-	  definitions.
-
-Tue May 24 16:37:43 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (ruby_cflags): separate from optflags [Bug #12409]
-	  -fexcess-precision=standard and -fp-model precise are set to this now.
-
-	* configure.in (cflags): use ruby_cflags.
-
-Tue May 24 16:20:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (ERRORFUNC, WARNINGFUNC): __error__ and __warning__
-	  attributes take a parenthesized string literal.
-
-Tue May 24 12:35:56 2016  URABE Shyouhei  <shyouhei@ruby-lang.org>
-
-	* common.mk: sort lines, and add missing dependencies suggested
-	  by tool/update-deps
-
-Mon May 23 21:33:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/missing.h (isfinite): move from numeric.c.
-
-Mon May 23 21:09:06 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl.c (Init_openssl): Avoid reference to unset global
-	  variable. ossl_raise() may be called before dOSSL is set. Since
-	  global variables default to 0 and the default value of dOSSL set in
-	  Init_openssl() is also Qfalse, there is no real issue but confusing.
-	  Patch by Bertram Scharpf <software@bertram-scharpf.de>
-	  [ruby-core:58264] [Bug #9101]
-
-Mon May 23 20:32:16 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_asn1.c, ext/openssl/ossl_bn.c,
-	  ext/openssl/ossl_cipher.c, ext/openssl/ossl_digest.c
-	  ext/openssl/ossl_engine.c, ext/openssl/ossl_ns_spki.c
-	  ext/openssl/ossl_pkcs12.c, ext/openssl/ossl_pkcs7.c
-	  ext/openssl/ossl_pkey.c, ext/openssl/ossl_pkey_ec.c
-	  ext/openssl/ossl_rand.c, ext/openssl/ossl_ssl.c
-	  ext/openssl/ossl_x509attr.c, ext/openssl/ossl_x509cert.c
-	  ext/openssl/ossl_x509ext.c, ext/openssl/ossl_x509store.c: Use
-	  StringValueCStr() where NUL-terminated string is expected.
-
-Mon May 23 20:20:12 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c (isfinite): get rid of a warning on
-	  cygwin. [Bug #12417][ruby-core:75691]
-
-Mon May 23 19:41:27 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_rand.c (ossl_rand_egd, ossl_rand_egd_bytes):
-	  RAND_egd{_bytes,}() return -1 on failure, not 0.
-	  Patch by cremno phobia <cremno@mail.ru>
-	  [ruby-core:63795] [Bug #10053]
-	  (ossl_pseudo_bytes): Similar, RAND_pseudo_bytes() may return 0 or
-	  -1 on failure.
-
-Mon May 23 15:52:07 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c (isfinite): isfinite does not always
-	  exist.  fixed build error on Windows introduced at r55123.
-
-Mon May 23 13:19:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_scan_args0): make compile error if the
-	  format is wrong or does not match with the variable argument
-	  length if possible.
-
-Mon May 23 12:47:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_scan_args0): raise fatal error if
-	  variable argument length does not match, it is a bug in the code
-	  which uses rb_scan_args, not a runtime error.
-
-Mon May 23 12:30:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/bigdecimal/bigdecimal.c (GetVpValueWithPrec): consider
-	  non-finite float values not to raise FloatDomainError.
-	  [ruby-core:75682] [Bug #12414]
-
-Mon May 23 12:21:18 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* array.c (rb_ary_fill): suppress warnings: 'item' may be used
-	  uninitialized in this function
-
-Mon May 23 07:41:49 2016  Eric Wong  <e@80x24.org>
-
-	* dir.c (dir_close): update RDoc for 2.3 #close change
-	  [ruby-core:75679] [Bug #12413]
-
-Sun May 22 20:01:21 2016  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/timeridconv.rb: use finalizer trick instead of thread.
-
-	* test/drb/ut_timerholder.rb: ditto.
-
-Sun May 22 17:25:18 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_options.rb: adjust test class name
-	  to match file name
-
-Sun May 22 17:24:07 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* rename test/ruby/enc/test_casing_options.rb to test_case_options.rb
-	  for consistency
-
-Sun May 22 17:06:55 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* transcode.c (enc_arg, str_transcode_enc_args, econv_args):
-	  remove volatile, and add GC guards in callers.
-	  [ruby-core:75664] [Bug #12411]
-
-Sun May 22 16:27:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/-test-/integer/core_ext.c: move testutil/integer.c.
-
-	* test/lib/-test-/integer.rb: extract implementation details from
-	  test/unit/assertions.rb.  [Bug #12408]
-
-Sun May 22 14:57:43 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* include/ruby/oniguruma.h: Extend OnigEncodingTypeDefine to define a
-	  new encoding primitive 'case_map' for case mapping
-
-	* enc/utf-8.c, utf_16be/le.c, utf_32be/le.c:
-	  add onigenc_unicode_case_map as case_map primitive
-
-	* enc/ascii.c, big5.c, cp949.c, emacs_mule.c, euc_jp/kr/tw.c, gb18030.c,
-	  gbk.c, iso_8859_1/2/3/4/5/6/7/8/9/10/11/13/14/15/16.c, koi8_r/u.c,
-	  shift_jis.c, us_ascii.c, windows_1250/1251/1252.c:
-	  add onigenc_not_support_case_map as case_map primitive
-
-Sun May 22 14:45:45 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* regenc.h/c: Define new function onigenc_not_support_case_map
-
-Sun May 22 12:14:06 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_scan_args): use original rb_scan_args
-	  when fmt is dynamic.
-
-Sun May 22 11:41:12 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* class.c (rb_scan_args): moved to bottom of the file to make the
-	  effect of `#undef rb_scan_args` the minimum.
-
-	* include/ruby/ruby.h (rb_scan_args): overwrite only if GCC and
-	  optimized. Visual C++ 14 or later can compile it but make it
-	  conservative.
-
-Sat May 21 22:45:50 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_scan_args): don't use ALWAYS_INLINE with
-	  `inline`.  if gcc needs this duplication, do in ALWAYS_INLINE macro.
-
-Sat May 21 21:11:56 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_scan_args): use __VA_ARGS__ instead of
-	  va_arg to allow compilers optimize more aggressive.
-	  https://gustedt.wordpress.com/2011/07/10/avoid-writing-va_arg-functions/
-	  rb_scan_args is now expected to be statically resolved.
-
-Sun May 22 02:41:52 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/zlib/zlib.c: remove hacky macro introduced at r30437.
-
-	* ext/zlib/zlib.c (gzfile_make_header): cast as long (instead of int).
-
-	* ext/zlib/zlib.c (gzfile_make_footer): ditto.
-
-Sat May 21 21:07:18 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (ALWAYS_INLINE): force compilers the function inlined.
-
-Sat May 21 16:16:03 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_stop): Don't free the SSL struct
-	  here. Since some methods such as SSLSocket#connect releases GVL,
-	  there is a chance of use after free if we free the SSL from another
-	  thread. SSLSocket#stop was documented as "prepares it for another
-	  connection" so this is a slightly incompatible change. However when
-	  this sentence was added (r30090, Add toplevel documentation for
-	  OpenSSL, 2010-12-06), it didn't actually. The current behavior is
-	  from r40304 (Correct shutdown behavior w.r.t GC., 2013-04-15).
-	  [ruby-core:74978] [Bug #12292]
-
-	* ext/openssl/lib/openssl/ssl.rb (sysclose): Update doc.
-
-	* test/openssl/test_ssl.rb: Test this.
-
-Sat May 21 14:41:14 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl.c: [DOC] Fix SSL client example. The variable name
-	  was wrong. Patch by Andreas Tiefenthaler <at@an-ti.eu> (@pxlpnk).
-	  [GH ruby/openssl#32]
-
-Sat May 21 14:25:38 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_pkey_ec.c: rename PKey::EC#private_key? and
-	  #public_key? to #private? and #public? for consistency with other
-	  PKey types. Old names remain as alias.  [ruby-core:45541] [Bug #6567]
-
-	* test/openssl/test_pkey_ec.rb (test_check_key): check private? and
-	  public? works correctly.
-
-Sat May 21 12:40:36 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/lib/openssl/buffering.rb (read_nonblock, readpartial):
-	  Remove impossible EOFError raise. Patch by Zach Anker
-	  <zanker@squareup.com>.  [GH ruby/openssl#23]
-
-Sat May 21 11:18:42 2016  Evgeni Golov  <evgeni@golov.de>
-
-	* lib/ipaddr.rb: [DOC] fix documentation of IN6MASK to mention
-	  IPv6.  [Fix GH-1349]
-
-Sat May 21 11:12:53 2016  Dan Martinez  <dfm@razorwind.org>
-
-	* io.c (Init_IO): [DOC] define dummy ARGF instead of ARGF.class to
-	  re-enable the generation of ARGF documentation.  [Fix GH-1358]
-
-Sat May 21 11:07:29 2016  0x01f7  <souk.0x01f7@gmail.com>
-
-	* doc/syntax/methods.rdoc (Method Names): add proper closing tag.
-	  [Fix GH-1356]
-
-Sat May 21 09:26:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_CHECK_SETJMP): fix missing macro definition
-	  for the configured result.  fix up r55021.
-
-Sat May 21 00:36:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (rb_execarg_commandline): build command line string
-	  from argument vector in rb_execarg.
-	  [ruby-core:75611] [Bug #12398]
-
-Fri May 20 23:25:42 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl.c (ossl_pem_passwd_value): Added. Convert the
-	  argument to String with StringValue() and validate the length is in
-	  4..PEM_BUFSIZE. PEM_BUFSIZE is a macro defined in OpenSSL headers.
-	  (ossl_pem_passwd_cb): When reading/writing encrypted PEM format, we
-	  used to pass the password to PEM_def_callback() directly but it was
-	  problematic. It is not NUL character safe. And surprisingly, it
-	  silently truncates the password to 1024 bytes.  [GH ruby/openssl#51]
-
-	* ext/openssl/ossl.h: Add function prototype declaration of newly
-	  added ossl_pem_passwd_value().
-
-	* ext/openssl/ossl_pkey.c (ossl_pkey_new_from_data): Use
-	  ossl_pem_passwd_value() to validate the password String.
-
-	* ext/openssl/ossl_pkey_dsa.c (ossl_dsa_initialize, ossl_dsa_export):
-	  ditto.
-
-	* ext/openssl/ossl_pkey_ec.c (ossl_ec_key_initialize,
-	  ossl_ec_key_to_string): ditto.
-
-	* ext/openssl/ossl_pkey_rsa.c (ossl_rsa_initialize, ossl_rsa_export):
-	  ditto.
-
-	* test/openssl/test_pkey_{dsa,ec,rsa}.rb: test this.
-
-Fri May 20 23:45:53 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* id_table.c (list_id_table_init): When unaligned word access is
-	  prohibited and sizeof(VALUE) is 8 (64-bit machines),
-	  capa should always be even number for 8-byte word alignment
-	  of the values of a table. This code assumes that sizeof(ID) is 4,
-	  sizeof(VALUE) is 8, and xmalloc() returns 8-byte aligned memory.
-	  This fixes bus error on 64-bit SPARC Solaris 10.
-	  [Bug #12406][ruby-dev:49631]
-
-Fri May 20 22:30:09 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* symbol.h (rb_id2sym): Use HAVE_BUILTIN___BUILTIN_CONSTANT_P
-
-Fri May 20 22:19:00 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* ext/date/date_core.c: [DOC] fix typos.
-	  [fix GH-1360] patched by @soundasleep
-
-Fri May 20 21:26:58 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* include/ruby/defines.h (RB_GNUC_EXTENSION, RB_GNUC_EXTENSION_BLOCK):
-	  macros for skipping __extension__ on non-GCC compilers.
-	* eval_error.c (warn_print): use RB_GNUC_EXTENSION_BLOCK instead of
-	  __extension__ because __extension__ is a GNU extension.
-	  Fix compile error on Solaris 10 with Oracle Solaris Studio 12.x.
-	  [Bug #12397] [ruby-dev:49629].
-	* internal.h (rb_fstring_cstr, rb_fstring_enc_cstr): ditto
-	* include/ruby/encoding.h (rb_enc_str_new, rb_enc_str_new_cstr): ditto
-	* include/ruby/intern.h (rb_str_new, rb_str_new_cstr,
-	  rb_usascii_str_new, rb_utf8_str_new, rb_tainted_str_new_cstr,
-	  rb_usascii_str_new_cstr, rb_utf8_str_new_cstr,
-	  rb_external_str_new_cstr, rb_locale_str_new_cstr,
-	  rb_str_buf_new_cstr, rb_str_cat_cstr, rb_exc_new_cstr): ditto
-
-Fri May 20 21:17:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/win32ole/win32ole.c (fole_missing): make substring or dup to
-	  share the content if possible.
-
-Fri May 20 19:48:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h (NEW_PARTIAL_MEMO_FOR): shrink buffer array not to
-	  mark non-VALUE fields.  fix check_rvalue_consistency abort with
-	  RGENGC_CHECK_MODE=2.
-
-	* internal.h (NEW_CMP_OPT_MEMO): exclude struct cmp_opt_data from
-	  the valid array range.
-
-	* enum.c (slicewhen_i): exclude inverted too.
-
-Thu May 19 21:21:57 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* re.c (rb_reg_match_m_p): [DOC] fix return value in rdoc.
-
-	* test/ruby/test_regexp.rb (TestRegexp#test_match_p): add some
-	  tests from document.
-
-Thu May 19 13:22:44 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl.c (Init_openssl): register an ex_data index for
-	  X509_STORE and X509_STORE_CTX respectively. Since they don't share
-	  the ex_data index registry, we can't use the same index.
-	  (ossl_verify_cb): use the the correct index.
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_verify_callback): ditto.
-
-	* ext/openssl/ossl_x509store.c (ossl_x509store_set_vfy_cb): ditto.
-	  (ossl_x509stctx_verify): ditto.
-
-	* ext/openssl/ossl.h (void ossl_clear_error): add extern declarations
-	  of ossl_store_{ctx_,}ex_verify_cb_idx.
-
-	* ext/openssl/openssl_missing.c: remove X509_STORE_set_ex_data and
-	  X509_STORE_get_ex_data.
-
-	* ext/openssl/openssl_missing.h: implement X509_STORE_get_ex_data,
-	  X509_STORE_set_ex_data and X509_STORE_get_ex_new_index as macros.
-
-Thu May 19 13:11:35 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_x509attr.c (ossl_x509attr_set_value): check that the
-	  argument is an OpenSSL::ASN1::Data before converting to ASN1_TYPE.
-	  This fixes SEGV on OpenSSL::X509::Attribute#value=(non-asn1-value).
-
-	* test/openssl/test_x509attr.rb: add tests for OpenSSL::X509::Attribute.
-
-Thu May 19 12:10:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* re.c (rb_reg_match_m_p): fix match against empty string.
-	  rb_str_offset returns the end when the position exceeds the
-	  length.  fix the range parameter of onig_search.
-	  [ruby-core:75604] [Bug #12394]
-
-Thu May 19 11:37:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* re.c (rb_reg_match_m_p): should return false if no match, as the
-	  document says.  [Feature #8110]
-
-Thu May 19 00:17:01 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* re.c (reg_names_iter): specify capacify
-
-Wed May 18 21:29:59 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* thread.c (recursive_list_access): a object id may be a Bignum.  so,
-	  the list must be a objhash, instead of a identhash.
-	  this fixes many test errors on mswin64 CI.
-
-Wed May 18 19:33:54 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* re.c (rb_reg_match_m_p): Introduce Regexp#match?, which returns
-	  bool and doesn't save backref.
-
-Wed May 18 16:52:03 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_pkcs12.c (ossl_pkcs12_initialize): pop errors
-	  leaked by PKCS12_parse(). This is a bug in OpenSSL, which exists
-	  in the versions before the version 1.0.0t, 1.0.1p, 1.0.2d.
-
-Wed May 18 16:04:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/downloader.rb (Downloader::RubyGems.download): verify gems
-	  only if RubyGems is 2.4 or later.  old RubyGems fails to verify
-	  almost all of bundled gems.
-
-Wed May 18 14:52:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_modify_expand): check integer overflow.
-	  [ruby-core:75592] [Bug #12390]
-
-Wed May 18 13:11:44 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* re.c (match_ary_subseq): get subseq of match array without creating
-	  temporary array.
-
-	* re.c (match_ary_aref): get element(s) of match array without creating
-	  temporary array.
-
-	* re.c (match_aref): Use match_ary_subseq with handling irregulars.
-
-	* re.c (match_values_at): Use match_ary_aref.
-
-Wed May 18 13:03:07 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_x509cert.c (ossl_x509_verify): X509_verify()
-	  family may put errors on 0 return (0 means verification failure).
-	  Clear OpenSSL error queue before return to Ruby. Since the queue is
-	  thread global, remaining errors in the queue can cause an unexpected
-	  error in the next OpenSSL operation.  [ruby-core:48284] [Bug #7215]
-
-	* ext/openssl/ossl_x509crl.c (ossl_x509crl_verify): ditto.
-
-	* ext/openssl/ossl_x509req.c (ossl_x509req_verify): ditto.
-
-	* ext/openssl/ossl_x509store.c (ossl_x509stctx_verify): ditto.
-
-	* ext/openssl/ossl_pkey_dh.c (dh_generate): clear the OpenSSL error
-	  queue before re-raising exception.
-
-	* ext/openssl/ossl_pkey_dsa.c (dsa_generate): ditto.
-
-	* ext/openssl/ossl_pkey_rsa.c (rsa_generate): ditto.
-
-	* ext/openssl/ossl_ssl.c (ossl_start_ssl): ditto.
-
-	* test/openssl: check that OpenSSL.errors is empty every time after
-	  running a test case.
-
-Wed May 18 12:07:42 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl.c (ossl_clear_error): Extracted from
-	  ossl_make_error(). This prints errors in the OpenSSL error queue if
-	  OpenSSL.debug is true, and clears the queue.
-	  (ossl_make_error): use ossl_clear_error().
-
-	* ext/openssl/ossl.h: add prototype declaration of ossl_make_error().
-	  (OSSL_BIO_reset) use ossl_clear_error() to clear the queue. Clearing
-	  silently makes debugging difficult.
-
-	* ext/openssl/ossl_engine.c (ossl_engine_s_by_id): ditto.
-
-	* ext/openssl/ossl_ns_spki.c (ossl_spki_initialize): ditto.
-
-	* ext/openssl/ossl_pkcs7.c (ossl_pkcs7_verify): ditto.
-
-	* ext/openssl/ossl_pkey_dsa.c (ossl_dsa_initialize): ditto.
-
-	* ext/openssl/ossl_pkey_ec.c (ossl_ec_key_initialize): ditto.
-	  (ossl_ec_group_initialize): ditto.
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_shutdown): ditto.
-
-Wed May 18 11:53:49 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_pkey_ec.c (ossl_ec_point_mul): Validate the
-	  arguments before passing to EC_POINT(s)_mul(). Add description of this
-	  method.  [ruby-core:65152] [Bug #10268]
-
-	* test/openssl/test_pkey_ec.rb (test_ec_point_mul): Test that
-	  OpenSSL::PKey::EC::Point#mul works.
-
-Wed May 18 11:19:59 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/ossl_bn.c (try_convert_to_bnptr): Extracted from
-	  GetBNPtr(). This doesn't raise exception but returns NULL on error.
-	  (GetBNPtr): Raise TypeError if conversion fails.
-	  (ossl_bn_eq): Implement BN#==.
-	  (ossl_bn_eql): #eql? should not raise TypeError even if the argument
-	  is not compatible with BN.
-	  (ossl_bn_hash): Implement BN#hash.
-
-	* ext/openssl/ossl_bn.c (Init_ossl_bn): Define #== and #hash.
-
-	* test/openssl/test_bn.rb: Test BN#eql?, #== and #hash
-
-Wed May 18 10:17:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (RB_INTEGER_TYPE_P): new macro and
-	  underlying inline function to check if the object is an
-	  Integer (Fixnum or Bignum).
-
-Wed May 18 09:52:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* enum.c (enum_sum, hash_sum, hash_sum_i, enum_sum_i, sum_iter):
-	  Optimize for hashes when each method isn't redefined.
-
-Wed May 18 09:14:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* enum.c (enum_sum, int_range_sum): Extract int_range_sum from
-	  enum_sum.
-
-Wed May 18 03:16:06 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* re.c (match_values_at): fix regression at r55036.
-	  MatchData#values_at accepts Range.
-
-Wed May 18 02:02:58 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* re.c (match_aref): remove useless condition and call rb_fix2int.
-	  rb_reg_nth_match handles negative index.
-
-Wed May 18 01:57:43 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* re.c (match_values_at): MatchData#values_at supports named captures
-	  [Feature #9179]
-
-	* re.c (namev_to_backref_number): separated.
-
-Wed May 18 00:05:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* enum.c (enum_sum): Optimize for a range from int to int.
-
-	* test/ruby/test_enum.rb (test_range_sum): Move from test_range.rb,
-	  and add assertions for some conditions.
-
-	* test/ruby/test_enum.rb (test_hash_sum): Move from test_hash.rb.
-
-	* test/ruby/test_hash.rb, test/ruby/test_range.rb: Remove test_sum.
-
-Tue May 17 23:08:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* enum.c (enum_sum): [DOC] Write documentation.
-
-Tue May 17 22:53:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* enum.c (enum_sum): Implement Enumerable#sum.
-
-	* test/ruby/test_enum.rb (test_sum): Test sum for Enumerable.
-
-	* test/ruby/test_hash.rb (test_sum): Test sum for Hash.
-
-	* test/ruby/test_range.rb (test_sum): Test sum for Range.
-
-Tue May 17 22:11:41 2016  Tanaka Akira  <akr@fsij.org>
-
-	* object.c, numeric.c, enum.c, ext/-test-/bignum/mul.c,
-	  lib/rexml/quickpath.rb, lib/rexml/text.rb, lib/rexml/xpath_parser.rb,
-	  lib/rubygems/specification.rb, lib/uri/generic.rb,
-	  bootstraptest/test_eval.rb, basictest/test.rb,
-	  test/-ext-/bignum/test_big2str.rb, test/-ext-/bignum/test_div.rb,
-	  test/-ext-/bignum/test_mul.rb, test/-ext-/bignum/test_str2big.rb,
-	  test/csv/test_data_converters.rb, test/date/test_date.rb,
-	  test/json/test_json_generate.rb, test/minitest/test_minitest_mock.rb,
-	  test/openssl/test_cipher.rb, test/rexml/test_jaxen.rb,
-	  test/ruby/test_array.rb, test/ruby/test_basicinstructions.rb,
-	  test/ruby/test_bignum.rb, test/ruby/test_case.rb,
-	  test/ruby/test_class.rb, test/ruby/test_complex.rb,
-	  test/ruby/test_enum.rb, test/ruby/test_eval.rb,
-	  test/ruby/test_iseq.rb, test/ruby/test_literal.rb,
-	  test/ruby/test_math.rb, test/ruby/test_module.rb,
-	  test/ruby/test_numeric.rb, test/ruby/test_range.rb,
-	  test/ruby/test_rational.rb, test/ruby/test_refinement.rb,
-	  test/ruby/test_rubyvm.rb, test/ruby/test_struct.rb,
-	  test/ruby/test_variable.rb, test/rubygems/test_gem_specification.rb,
-	  test/thread/test_queue.rb: Use Integer instead of Fixnum and Bignum.
-
-Tue May 17 15:26:10 2016  Tanaka Akira  <akr@fsij.org>
-
-	* [Feature #12005] Unify Fixnum and Bignum into Integer
-
-	* include/ruby/ruby.h (rb_class_of): Return rb_cInteger for fixnums.
-
-	* insns.def (INTEGER_REDEFINED_OP_FLAG): Unified from
-	  FIXNUM_REDEFINED_OP_FLAG and BIGNUM_REDEFINED_OP_FLAG.
-
-	* vm_core.h: Ditto.
-
-	* vm_insnhelper.c (opt_eq_func): Use INTEGER_REDEFINED_OP_FLAG instead
-	  of FIXNUM_REDEFINED_OP_FLAG.
-
-	* vm.c (vm_redefinition_check_flag): Use rb_cInteger instead of
-	  rb_cFixnum and rb_cBignum.
-	  (C): Use Integer instead of Fixnum and Bignum.
-
-	* numeric.c (fix_succ): Removed.
-	  (Init_Numeric): Define Fixnum as Integer.
-
-	* bignum.c (bignew): Use rb_cInteger instead of rb_cBignum.
-	  (rb_int_coerce): replaced from rb_big_coerce and return fixnums
-	  as-is.
-	  (Init_Bignum): Define Bignum as Integer.
-	  Don't define ===.
-
-	* error.c (builtin_class_name): Return "Integer" for fixnums.
-
-	* sprintf.c (ruby__sfvextra): Use rb_cInteger instead of rb_cFixnum.
-
-	* ext/-test-/testutil: New directory to test.
-	  Currently it provides utilities for fixnum and bignum.
-
-	* ext/json/generator/generator.c: Define mInteger_to_json.
-
-	* lib/mathn.rb (Fixnum#/): Redefinition removed.
-
-Tue May 17 11:58:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_CHECK_BUILTIN_SETJMP): declare t as NORETURN
-	  to suppress warnings by -Wsuggest-attribute=noreturn.
-	  [ruby-core:75510] [Bug #12383]
-
-Tue May 17 10:40:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_CHECK_SETJMP): needs the header and proper
-	  arguments for builtin setjmp functions.
-
-Mon May 16 20:00:30 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.h: Additional uses of ONIG_CASE_MAPPING compilation switch
-
-Mon May 16 19:46:33 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* include/ruby/oniguruma.h: Introducing ONIG_CASE_MAPPING compilation
-	  switch
-
-	* include/ruby/oniguruma.h, enc/unicode.h: Using ONIG_CASE_MAPPING
-	  compilation switch
-
-Mon May 16 19:29:31 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* gems/bundled_gems: Update xmlrpc-0.1.1. xmlrpc-0.1.0 didn't allow
-	  to install on 2.4.0dev.
-
-Mon May 16 13:28:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (FUNC_STDCALL, FUNC_CDECL, FUNC_FASTCALL): set
-	  macro names explicitly to the old names, which are accidentally
-	  changed at r54985, for backward compatibilities.
-	  fiddle also depends on these names to fallback to ANSI names.
-	  [ruby-core:75494] [Bug #12377]
-
-Mon May 16 11:39:02 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/xmlrpc.rb, lib/xmlrpc/*, test/xmlrpc: XMLRPC is bundled gem
-	  on Ruby 2.4. It is extracted to https://github.com/ruby/xmlrpc
-	  [Feature #12160][ruby-core:74239]
-	* gems/bundled_gems: ditto.
-
-Mon May 16 06:06:21 2016  Eric Wong  <e@80x24.org>
-
-	* proc.c: fix RDoc of Proc#===/call/yield/[]
-	  [Bug #12332]
-
-Sun May 15 20:55:31 2016  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/timeridconv.rb: don't use keeper thread. [Bug #12342]
-
-	* test/drb/ut_timerholder.rb: ditto.
-
-Sun May 15 16:15:25 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* array.c (rb_ary_entry): extract rb_ary_elt to organize if-conditions
-	  and check whether is embedded at once.
-
-Sun May 15 10:57:26 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_get_ev_const): warn deprecated constant even
-	  in the class context.  [ruby-core:75505] [Bug #12382]
-
-Sun May 15 03:13:01 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* iseq.h (struct iseq_compile_data): use struct rb_id_table
-	  instead of st_table.
-
-	* iseq.c (prepare_iseq_build): don't allocate ivar_cache_table
-	  until it has at least one element.
-
-	* iseq.c (compile_data_free): free ivar_cache_table only if it
-	  is allocated.
-
-	* compile.c (get_ivar_ic_value): allocate if the table is not
-	  allocated yet.
-
-Sat May 14 09:04:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (pkg_config): use xsystem consistently to set up
-	  library path environment variable as well as latter pkg-config
-	  calls.  [ruby-dev:49619] [Bug #12379]
-
-Sat May 14 00:16:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* random.c (make_seed_value): append leading-zero-guard and get
-	  rid of making a local copy of the seed.
-
-Fri May 13 08:46:42 2016  cremno  <cremno@mail.ru>
-
-	* NEWS: drop FreeBSD < 4 support.  [Fix GH-1339]
-	  The most recent version affected by this is 3.5 and was released
-	  in 2000.
-	  https://www.freebsd.org/releases/3.5R/announce.html
-	  https://en.wikipedia.org/wiki/History_of_FreeBSD#Version_history
-
-Fri May 13 03:12:09 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* include/ruby/defines.h (GCC_VERSION_SINCE): moved from internal.h.
-
-Fri May 13 03:11:20 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (__builtin_constant_p): check.
-
-	* internal.h: Use HAVE_BUILTIN___BUILTIN_CONSTANT_P
-
-Fri May 13 03:10:39 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: use alternative keyword
-	  to avoid macros conflicts with them.
-
-Thu May 12 01:54:08 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/mkmf.rb (try_func): get rid of conflict of declarations of
-	  main().  checking local symbol reference does not make sense.
-
-Thu May 12 00:18:19 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/Makefile.sub (HAVE_QSORT_S): use qsort_s only for Visual Studio
-	  2012 or later, because VS2010 seems to causes a SEGV in
-	  test/ruby/test_enum.rb.
-
-Wed May 11 23:59:47 2016  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_getivar): describe fast-path explicit
-	  (compiler friendly). [Bug #12274].
-
-Wed May 11 21:30:07 2016  Masaya Tarui  <tarui@ruby-lang.org>
-
-	* compile.c (iseq_compile_each): share InlineCache during same
-	  instance variable accesses. Reducing memory consumption,
-	  rising cache hit rate and rising branch prediction hit rate
-	  are expected. A part of [Bug #12274].
-
-	* iseq.h (struct iseq_compile_data): introduce instance
-	  variable IC table for sharing.
-
-	* iseq.c (prepare_iseq_build, compile_data_free):
-	  construct/destruct above table.
-
-Wed May 11 17:18:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* util.c (ruby_qsort): use qsort_s if available, for Microsoft
-	  Visual Studio 2005 (msvcr80.dll) and mingw.
-
-Wed May 11 10:33:26 2016  Marcus Stollsteimer  <sto.mar@web.de>
-
-	* COPYING: Remove trailing-whitespaces.
-	  [ci skip][fix GH-1348]
-
-Tue May 10 21:05:45 2016  Benoit Daloze  <eregontp@gmail.com>
-
-	* insns.def (defineclass): Also raise an error when redeclaring the
-	  superclass of a class as Object and it has another superclass.
-	  [Bug #12367] [ruby-core:75446]
-
-	* test/ruby/test_class.rb: test for above.
-
-Tue May 10 14:57:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* random.c (obj_random_bytes): base on bytes method instead of
-	  rand method, not to call toplevel rand method.
-
-Tue May 10 13:07:28 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (-fexcess-precision=standard): before r54895 -std=c99
-	  is specified and it implied -fexcess-precision=standard.
-	  Now with -std=gnu99, it should be explicitly specified.
-	  https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html
-
-Mon May  9 10:51:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (rb_thread_atfork_internal): move th to an argument.
-
-	* thread.c (rb_thread_atfork): do not repeat GET_THREAD().
-
-Mon May  9 10:46:36 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (rb_thread_atfork, rb_thread_atfork_before_exec): do
-	  nothing unless working fork is available.
-
-	* thread_sync.c (rb_mutex_abandon_all): define only if working
-	  fork is available.
-
-	* thread_sync.c (rb_mutex_abandon_keeping_mutexes): ditto.
-
-	* thread_sync.c (rb_mutex_abandon_locking_mutex): ditto.
-
-	* thread_win32.c (gvl_init): never used.
-
-Mon May  9 07:18:06 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* include/ruby/{defines,ruby}.h: need to define function attributes
-	  alternatives in defines.h instead of ruby.h, because they are used
-	  in oniguruma.h and the header used without including ruby.h at
-	  encoding library sources.
-
-Mon May  9 06:30:12 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* include/ruby/ruby.h (CONSTFUNC, PUREFUNC): fixed build errors on
-	  non-gcc build environments introduced at r54952.
-
-Mon May  9 02:51:51 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* gc.c (rb_gc_unprotect_logging): throw rb_memerror when it cannot
-	  allocate memory. This is pointed out by Facebook's Infer.
-
-	* gc.c (gc_prof_setup_new_record): ditto.
-
-	* regparse.c (parse_regexp): ditto.
-
-	* util.c (MALLOC): use xmalloc and xfree like above.
-
-Mon May  9 02:39:16 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: check function attribute const and pure,
-	  and define CONSTFUNC and PUREFUNC if available.
-	  Note that I don't add those options as default because
-	  it still shows many false-positive (it seems not to consider
-	  longjmp).
-
-	* vm_eval.c (stack_check): get rb_thread_t* as an argument
-	  to avoid duplicate call of GET_THREAD().
-
-Sun May  8 21:01:14 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/openssl/extconf.rb: assume it doesn't have SSLv2 related
-	  functions when OPENSSL_NO_SSL2 is defined.
-	  Usually openssl's header and the library (libssl) have the same
-	  set of functions, but on some environment the library has functions
-	  whose headers doesn't declare. (openssl/opensslconf.h and libssl.so
-	  aren't be synchronized)
-	  To detect such case explicitly check feature macro and remove
-	  related functions.
-
-Sun May  8 18:51:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_home_dir_of): return the default home path if the
-	  user name is the current user name, on platforms where struct
-	  pwd is not supported.  a temporary measure against
-	  [Bug #12226].
-
-Sun May  8 08:51:38 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: add -Wsuggest-attribute=format and suppress warnings.
-
-Sun May  8 08:31:03 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: add -Wsuggest-attribute=noreturn and suppress warnings.
-
-Sun May  8 08:19:16 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: add -Werror=implicit-int to avoid missing type of
-	  function declaration.
-
-Sat May  7 22:22:37 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/webrick/ssl.rb: Accept string value for SSLCertName. It is used
-	  to invoke ssl server with command line.
-	  [fix GH-1329] Patch by @kerlin
-	* test/webrick/test_ssl_server.rb: Added test for GH-1329
-
-Sat May  7 21:55:12 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/webrick/test_ssl_server.rb: Added basic test for `webrick/ssl`
-
-Sat May  7 16:22:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* random.c (int_pair_to_real_inclusive): optimize to multiply
-	  without Bignum.
-
-Sat May  7 07:58:02 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* process.c (rb_exec_getargs): honor the expected argument types
-	  over the conversion method.  the basic language functionality
-	  should be robust.  [ruby-core:75388] [Bug #12355]
-
-Fri May  6 08:16:26 2016  David Silva  <david.silva@digital.cabinet-office.gov.uk>
-
-	* enum.c (enum_find): [DOC] add more examples to the documentation
-	  of Enumerable#detect, to show that it equals to Enumerable#find.
-	  [Fix GH-1340]
-
-Thu May  5 18:08:31 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* test/ruby/test_complexrational.rb: Remove duplicated raise.
-
-Thu May  5 14:41:05 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* string.c (rb_str_sub): Fix a special match variable name.
-	  [ci skip]
-
-Thu May  5 12:22:17 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (rb_eval_cmd, rb_catch_obj): use TH_JUMP_TAG with the
-	  same rb_thread_t used for TH_PUSH_TAG, instead of JUMP_TAG with
-	  the current thread global variable.
-
-Thu May  5 10:49:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* random.c (fill_random_bytes_syscall): use arc4random_buf if
-	  available.
-
-Wed May  4 23:13:58 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* numeric.c (fix_plus): Remove rb_nucomp_add prototype
-	  declaration.
-
-	* numeric.c (fix_mul): Remove rb_nucomp_mul prototype
-	  declaration.
-
-	* internal.h (rb_nucomp_add, rb_nucomp_mul): add prototype
-	  declarations.
-
-Wed May  4 18:38:00 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* lib/net/http/header.rb (Net::HTTPHeader#{each_header,each_name,
-	  each_capitalized_name,each_value,each_capitalized}): Return
-	  sized enumerators.
-
-	* test/net/http/test_httpheader.rb: add test for above.
-
-Wed May  4 17:53:15 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* lib/set.rb (Set#{delete_if,keep_if,collect!,reject!,select!,classify,divide},
-	  SortedSet#{delete_if,keep_if}): Return sized enumerators.
-
-	* test/test_set.rb: add test for above.
-
-Tue May  3 23:25:48 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* numeric.c: [DOC] Update result of 123456789 ** -2.
-	  [ruby-dev:49606] [Bug #12339]
-
-Tue May  3 23:13:16 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* internal.h (RCOMPLEX_SET_IMAG): undef RCOMPLEX_SET_IMAG
-	  instead of duplicated undef RCOMPLEX_SET_REAL.
-
-Tue May  3 22:55:07 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* complex.c (rb_complex_set_imag): Fix to properly set imag
-	  of complex.
-
-Tue May  3 22:19:55 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (warnflags): use -std=gnu99 instead of
-	  -std=iso9899:1999. [Feature #12336]
-
-Tue May  3 22:10:09 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* string.c (count_utf8_lead_bytes_with_word): Use __builtin_popcount
-	  only if it can use SSE 4.2 POPCNT whose latency is 3 cycle.
-
-	* internal.h (rb_popcount64): use __builtin_popcountll because now
-	  it is in fast path.
-
-Tue May  3 14:19:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (new_if_gen): set newline flag to NODE_IF to trace all
-	  if/elsif statements.  [ruby-core:67720] [Bug #10763]
-
-Tue May  3 05:35:54 2016  Eric Wong  <e@80x24.org>
-
-	* process.c (disable_child_handler_fork_child):
-	  initialize handler for SIGPIPE for !POSIX_SIGNAL
-
-Mon May  2 23:03:42 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c, include/ruby/win32.h (rb_w32_utruncate): implements new
-	  truncate alternative which accepts UTF-8 path.
-
-	* file.c (truncate): use above function.
-	  [Bug #12340]
-
-Mon May  2 20:59:21 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* re.c (str_coderange): to avoid function call when the string already
-	  has coderange information.
-
-	* re.c (rb_reg_prepare_enc): add shortcut path when the regexp has
-	  the same encoding of given string.
-
-	* re.c (rb_reg_prepare_re): avoid duplicated allocation of
-	  onig_errmsg_buffer.
-
-
-Mon May  2 12:34:52 2016  Tanaka Akira  <akr@fsij.org>
-
-	* test/ruby/test_refinement.rb (test_inspect): Use Integer instead of
-	  Fixnum.
-
-Mon May  2 06:58:38 2016  Tanaka Akira  <akr@fsij.org>
-
-	* complex.c: Don't refer rb_cFixnum and rb_cBignum.
-	  (k_fixnum_p): Use FIXNUM_P.
-	  (k_bignum_p): Use RB_TYPE_P.
-
-Mon May  2 01:27:59 2016  Tanaka Akira  <akr@fsij.org>
-
-	* test/ruby/test_numeric.rb (test_step): Use Integer::FIXNUM_MAX.
-
-Mon May  2 01:15:01 2016  Tanaka Akira  <akr@fsij.org>
-
-	* test/ruby/test_module.rb (test_name): Use Integer instead of Fixnum.
-
-Mon May  2 01:00:04 2016  Tanaka Akira  <akr@fsij.org>
-
-	* test/lib/test/unit/assertions.rb (assert_fixnum): Defined.
-	  (assert_bignum): Defined.
-
-	* test/ruby/test_bignum.rb: Use assert_bignum.
-
-	* test/ruby/test_integer_comb.rb: Use assert_fixnum and assert_bignum.
-
-	* test/ruby/test_optimization.rb: Ditto.
-
-Mon May  2 00:41:53 2016  Tanaka Akira  <akr@fsij.org>
-
-	* vm_trace.c (recalc_remove_ruby_vm_event_flags): Add a cast to
-	  avoid signed integer overflow.
-
-Mon May  2 00:06:04 2016  Tanaka Akira  <akr@fsij.org>
-
-	* test/lib/envutil.rb: Define Integer::{FIXNUM_MIN,FIXNUM_MAX}.
-
-	* test/ruby/test_bignum.rb: Use Integer::{FIXNUM_MIN,FIXNUM_MAX}.
-
-	* test/ruby/test_bignum.rb: Ditto.
-
-	* test/ruby/test_integer_comb.rb: Ditto.
-
-	* test/ruby/test_marshal.rb: Ditto.
-
-	* test/ruby/test_optimization.rb: Ditto.
-
-Sun May  1 23:59:59 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* array.c (rb_ary_sum): fix for mathn
-
-	* test/ruby/test_array.rb (test_sum): ditto.
-
-Sun May  1 23:51:54 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* test/lib/test/unit.rb (Options#non_options): fixed wrong regexp.
-	  if both positives and negatives were specified, positives had to
-	  be specified from the beginning.
-
-Sun May  1 21:00:07 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c: drop Win2K support.
-
-Sun May  1 20:39:47 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* cont.c, hash.c, random.c, win32/win32.c: cleanup some Win9x/ME/NT4
-	  support leftovers.
-	  [fix GH-1328] patched by @cremno
-
-Sun May  1 07:30:44 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* string.c (search_nonascii): use nlz on big endian environments.
-
-	* internal.h (nlz_intptr): defined.
-
-Sun May  1 00:03:30 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (__builtin_ctz): check.
-
-	* configure.in (__builtin_ctzll): check.
-
-	* internal.h (rb_popcount32): defined for ntz_int32.
-	  it can use __builtin_popcount but this function is not used on
-	  GCC environment because it uses __builtin_ctz.
-	  When another function uses this, using __builtin_popcount
-	  should be re-considered.
-
-	* internal.h (rb_popcount64): ditto.
-
-	* internal.h (ntz_int32): defined for ntz_intptr.
-
-	* internal.h (ntz_int64): defined for ntz_intptr.
-
-	* internal.h (ntz_intptr): defined as ntz for uintptr_t.
-
-	* string.c (search_nonascii): unroll and use ntz.
-
-Sat Apr 30 21:54:13 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (Init_Numeric): Gather Fixnum method definitions.
-
-Sat Apr 30 21:28:14 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_div): Define Integer#/.
-
-	* bignum.c (rb_big_div): Don't define Bignum#/.
-
-	* lib/mathn.rb (Integer#/): Replace Integer#/ instead of Bignum#/.
-
-Sat Apr 30 21:11:08 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_plus): Define Integer#+.
-
-	* bignum.c (rb_big_plus): Don't define Bignum#+.
-
-Sat Apr 30 21:01:20 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_minus): Define Integer#-.
-
-	* bignum.c (rb_big_minus): Don't define Bignum#-.
-
-Sat Apr 30 20:53:33 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_mul): Define Integer#*.
-
-	* bignum.c (rb_big_mul): Don't define Bignum#*.
-
-Sat Apr 30 20:30:44 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_modulo): Define Integer#%.
-
-	* bignum.c (rb_big_modulo): Don't define Bignum#%.
-
-Sat Apr 30 20:17:08 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_equal): Define Integer#==.
-
-	* bignum.c (rb_big_eq): Don't define Bignum#==.
-
-Sat Apr 30 19:41:15 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_gt): Define Integer#>.
-
-	* bignum.c (rb_big_gt): Don't define Bignum#>.
-	  Renamed from big_gt.
-
-	* internal.h (rb_big_gt): Declared.
-
-Sat Apr 30 19:24:40 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_ge): Define Integer#>=.
-
-	* bignum.c (rb_big_ge): Don't define Bignum#>=.
-	  Renamed from big_ge.
-
-	* internal.h (rb_big_ge): Declared.
-
-Sat Apr 30 19:20:40 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* doc/standard_library.rdoc: Remove obsoleted classes and modules.
-
-Sat Apr 30 19:09:23 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_lt): Define Integer#<.
-
-	* bignum.c (rb_big_lt): Don't define Bignum#<.
-	  Renamed from big_lt.
-
-	* internal.h (rb_big_lt): Declared.
-
-Sat Apr 30 18:44:05 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_le): Define Integer#<=.
-
-	* bignum.c (rb_big_le): Don't define Bignum#<=.
-	  Renamed from big_le.
-
-	* internal.h (rb_big_le): Declared.
-
-Sat Apr 30 18:11:44 2016  Tanaka Akira  <akr@fsij.org>
-
-	* bignum.c (Init_Bignum): Define Integer::GMP_VERSION.
-
-Sat Apr 30 16:58:18 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_remainder): Define Integer#remainder.
-
-	* bignum.c (rb_big_remainder): Don't define Bignum#remainder.
-
-	* internal.h (rb_big_remainder): Declared.
-
-Sat Apr 30 15:29:24 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_uminus): {Fixnum,Bignum}#-@ is unified into
-	  Integer.
-
-	* bignum.c (rb_big_uminus): Don't define Bignum#-@.
-
-Sat Apr 30 14:42:20 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_idiv): {Fixnum,Bignum}#div is unified into
-	  Integer.
-
-	* bignum.c (rb_big_idiv): Don't define Bignum#div.
-
-Sat Apr 30 14:25:55 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_modulo): {Fixnum,Bignum}#modulo is unified into
-	  Integer.
-
-	* bignum.c (rb_big_modulo): Don't define Bignum#modulo.
-
-Sat Apr 30 14:04:30 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_divmod): {Fixnum,Bignum}#divmod is unified into
-	  Integer.
-
-	* bignum.c (rb_big_divmod): Don't define Bignum#divmod.
-
-Sat Apr 30 13:20:00 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_fdiv): {Fixnum,Bignum}#fdiv is unified into
-	  Integer.
-
-	* bignum.c (rb_big_fdiv): Don't define Bignum#fdiv.
-
-Sat Apr 30 12:25:43 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_pow): {Fixnum,Bignum}#** is unified into
-	  Integer.
-
-	* bignum.c (rb_big_pow): Don't define Bignum#**.
-
-Sat Apr 30 12:28:59 2016  Tanaka Akira  <akr@fsij.org>
-
-	* bignum.c (rb_big_comp): Renamed from rb_big_neg.
-
-	* numeric.c (fix_comp): Renamed from fix_rev.
-
-Sat Apr 30 12:25:43 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_comp): {Fixnum,Bignum}#~ is unified into
-	  Integer.
-
-	* bignum.c (rb_big_neg): Don't define Bignum#~.
-
-	* internal.h (rb_big_neg): Declared.
-
-Sat Apr 30 12:07:42 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_and): {Fixnum,Bignum}#& is unified into
-	  Integer.
-
-	* bignum.c (rb_big_and): Don't define Bignum#&.
-
-Sat Apr 30 11:56:15 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/thread: removed dummy extension library.  thread_sync.c
-	  provides "thread.rb" already.
-
-Sat Apr 30 11:53:48 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_or): {Fixnum,Bignum}#| is unified into
-	  Integer.
-
-	* bignum.c (rb_big_or): Don't define Bignum#|.
-
-Sat Apr 30 11:18:47 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* vm_trace.c: Fix typos. [ci skip]
-
-Sat Apr 30 10:09:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/pty/pty.c (establishShell): honor USER environment variable
-	  and login name over uid, one uid can be shared by some login
-	  names.
-
-Fri Apr 29 22:40:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* doc/maintainers.rdoc (ext/io/nonblock): still maintained, as
-	  well as ext/io/wait, which is the origin.
-
-Fri Apr 29 21:18:12 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* doc/maintainers.rdoc (ext/win32): of course, it's still maintained.
-
-Fri Apr 29 21:03:10 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* gems/bundled_gems: Update latest gems, test-unit-3.1.8 and rake-11.1.2.
-
-Fri Apr 29 20:43:02 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* doc/maintainers.rdoc: Update latest maintainers list on Ruby 2.4
-
-Fri Apr 29 19:52:45 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* doc/maintainers.rdoc: Removed deprecated entries. These are already deleted.
-
-Fri Apr 29 19:48:45 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* doc/maintainers.rdoc: Removed Ruby 1.8 entries. It's not necessary to
-	  Ruby 2.4 or later.
-
-Thu Apr 28 17:03:17 2016  Nicholas Maccharoli  <nmaccharoli@gmail.com>
-
-	* hash.c (rb_hash_update_{block,func}_callback): dry up hash
-	  update callback code.  [Fix GH-1338]
-
-Thu Apr 28 16:52:05 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* re.c (rb_reg_prepare_enc): use rb_enc_asciicompat(enc) instead of
-	  rb_enc_str_asciicompat_p(str) to avoid useless rb_enc_get(str) call.
-
-Thu Apr 28 16:33:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb: [DOC] fix example code.  base on the code by
-	  Semyon Gaivoronskiy in [ruby-core:75224].  [Bug #12323]
-
-Thu Apr 28 09:33:03 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.6.4.
-	  Please see entries of 2.6.4 on
-	  https://github.com/rubygems/rubygems/blob/master/History.txt
-
-Thu Apr 28 04:49:07 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* configure.in (rb_cv_lgamma_r_pm0): check if lgamma_r(+0.0)
-	  returns positive infinity, in addition to lgamma_r(-0.0).
-	  AIX returns an incorrect result of negative infinity.
-
-	* math.c (ruby_lgamma_r): handle +0.0, in addition to -0.0.
-
-Thu Apr 28 01:11:14 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* time.c: define _DEFAULT_SOURCE because glibc 2.20 deprecates
-	  _BSD_SOURCE.
-	  https://sourceware.org/glibc/wiki/Release/2.20
-
-Thu Apr 28 00:27:55 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_xor): {Fixnum,Bignum}#^ is unified into
-	  Integer.
-
-	* bignum.c (rb_big_xor): Don't define Bignum#^.
-
-Wed Apr 27 20:53:59 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_aref): {Fixnum,Bignum}#[] is unified into
-	  Integer.
-
-	* bignum.c (rb_big_aref): Don't define Bignum#<<.
-
-	* internal.h (rb_big_aref): Declared.
-
-Wed Apr 27 16:10:35 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* tool/instruction.rb: fix to follow current implementation.
-
-Wed Apr 27 15:47:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/stringio/stringio.c (strio_s_new): warn if a block is given,
-	  as well as IO.new.
-
-Wed Apr 27 14:29:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (ruby_only_for_internal_use): raise fatal error when
-	  deprecated function only for internal use is called, not just a
-	  warning.
-
-Tue Apr 26 23:42:30 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* tool/redmine-backporter.rb (rel): should not raise exceptions even if
-	  the user input is wrong.  only reports the error and continue process.
-
-Tue Apr 26 23:35:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (process_options): convert -e script to the encoding
-	  given by a command line option on Windows.  assume it is the
-	  expected encoding.  [ruby-dev:49461] [Bug #11900]
-
-Tue Apr 26 21:11:02 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_lshift): {Fixnum,Bignum}#<< is unified into
-	  Integer.
-
-	* bignum.c (rb_big_lshift): Don't define Bignum#<<.
-
-Tue Apr 26 20:59:40 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_rshift): {Fixnum,Bignum}#>> is unified into
-	  Integer.
-
-	* bignum.c (rb_big_rshift): Don't define Bignum#>>.
-
-Tue Apr 26 20:46:16 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_size): {Fixnum,Bignum}#size is unified into Integer.
-
-	* bignum.c (rb_big_size_m): Don't define Bignum#size.
-
-	* internal.h (rb_big_size_m): Declared.
-
-Tue Apr 26 20:09:08 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (rb_int_bit_length): {Fixnum,Bignum}#bit_length is
-	  unified into Integer.
-
-	* bignum.c (rb_big_bit_length): Don't define Bignum#bit_length.
-
-	* internal.h (rb_big_bit_length): Declared.
-
-Tue Apr 26 19:56:16 2016  Tanaka Akira  <akr@fsij.org>
-
-	* numeric.c (int_abs): Integer#{abs,magnitude} moved from
-	  Fixnum and Bignum.
-
-	* bignum.c (rb_big_abs): Don't define Bignum#{abs,magnitude}.
-
-	* internal.h (rb_big_abs): Declared.
-
-Mon Apr 25 14:39:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/rbconfig/sizeof/extconf.rb: just check the existence of each
-	  types, to reduce configuration time, especially cross-compiling.
-
-	* template/sizes.c.tmpl: calculate sizes of checked types at
-	  compilation time.
-
-Mon Apr 25 11:27:27 2016  Marcus Stollsteimer  <sto.mar@web.de>
-
-	* doc/extension.rdoc: Improvements to english grammars.
-	  [Bug #12246][ruby-core:74792][ci skip]
-
-Mon Apr 25 11:17:50 2016  Marcus Stollsteimer  <sto.mar@web.de>
-
-	* encoding.c: Fix return value of `Encoding::ISO8859_1.name`
-	  [Bug #12313][ruby-core:75147][ci skip]
-	* ext/bigdecimal/bigdecimal.c: Fix code sample of `BigDecimal.new`
-
-Sun Apr 24 23:29:16 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* configure.in: add missing -lm for AIX.
-
-Sun Apr 24 18:33:58 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
-
-	* vm_insnhelper.c (INLINE): disable r54738 if __NO_INLINE__ is defined.
-	  It caused "undefined reference to `vm_getivar'".
-
-Sun Apr 24 09:32:12 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* test/ruby/test_array.rb: Add test cases for Array#sum with
-	  non-numeric objects.
-
-Sun Apr 24 04:21:27 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* vm_insnhelper.c (INLINE): define as `inline` when it is optimized.
-	  define as `static inline` when it is not optimized to keep
-	  the symbol generated.
-
-	* vm_insnhelper.c (vm_getivar): use `INLINE` to force inline
-	  so that a compiler inlines it into vm_getinstancevariable
-	  and optimizes out is_attr and related branches.
-
-	* vm_insnhelper.c (vm_getivar): use `inline` to recommend inline.
-	  Without this vm1_ivar_set is degraded.
-
-	  benchmark results:
-	  minimum results in each 5 measurements.
-	  Execution time (sec)
-	  name    ruby 2.4.0dev (2016-04-23 trunk 54727) [x86_64-linux]   ruby 2.4.0dev (2016-04-23 trunk 54733) [x86_64-linux]       built-ruby
-	  loop_whileloop 0.641                                                   0.642 0.646
-	  vm1_ivar* 1.002                                                   0.999 0.831
-	  vm1_ivar_set* 0.369                                                   1.106 0.362
-
-	  Speedup ratio: compare with the result of `ruby 2.4.0dev (2016-04-23
-	  trunk 54727) [x86_64-linux]' (greater is better)
-	  name    ruby 2.4.0dev (2016-04-23 trunk 54733) [x86_64-linux]
-	  built-ruby
-	  loop_whileloop
-	  0.998        0.991
-	  vm1_ivar*
-	  1.003        1.205
-	  vm1_ivar_set*
-	  0.334        1.018
-
-Sat Apr 23 18:01:21 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* vm_insnhelper.c (vm_getivar): specify inline instead of static inline.
-	  vm_getivar is called by vm_call_ivar and vm_getinstancevariable.
-	  At least with GCC 4.8 and 5.3 on Linux, they are inlining it into
-	  vm_call_ivar but not vm_getinstancevariable.
-	  By `inline`, they correctly inline it and gains performance.
-
-	  Speedup ratio: compare with the result of `ruby 2.4.0dev (2016-04-23
-	  trunk 54727) [x86_64-linux]' (greater is better)
-	  name    built-ruby
-	  loop_whileloop       1.001
-	  vm1_ivar*            1.189
-	  vm1_ivar_set*        1.024
-
-	  Note the `inline`'s meaning is different between old GCC
-	  and C99. Old GCC's inline means C99's extern inline.
-	  https://gcc.gnu.org/onlinedocs/gcc/Inline.html
-	  Since Ruby specify -std=iso9899:1999, it works like C99.
-
-Sat Apr 23 16:11:39 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_mul_size_overflow): use UNLIKELY
-	  by user side to improve generality.
-
-Sat Apr 23 16:10:02 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* include/ruby/ruby.h (RB_LIKELY): use prefix in ruby.h.
-
-	* intern.h (LIKELY): define with RB_LIKELY.
-
-Sat Apr 23 13:27:25 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* NEWS: Add descriptions for Time#to_time updates.
-	  [Bug #12271]
-
-Sat Apr 23 13:21:24 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* NEWS: Add descriptions for DateTime#to_time updates.
-	  [Bug #12189]
-
-Sat Apr 23 11:21:27 2016  Marcus Stollsteimer  <sto.mar@web.de>
-
-	* ext/date/date_core.c (Init_date_core): [DOC] Convert DateTime
-	  documentation to RDoc from Markdown.
-	  [ruby-core:75136] [Bug #12311]
-
-Sat Apr 23 09:03:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c: cygwin does not use w32_cmdvector, command line can be
-	  other than UTF-8.  [ruby-dev:49519] [Bug #12184]
-
-Sat Apr 23 01:00:03 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* configure.in: don't use the system-provided round(3) on AIX.
-	  In AIX, round(0.49999999999999994) returns 1.0.
-	  Use round() in numeric.c instead.
-
-Fri Apr 22 21:00:44 2016  Tanaka Akira  <akr@fsij.org>
-
-	* test/ruby/test_time_tz.rb: Tests depends on Europe/Moscow removed
-	  to avoid test failures due to the tzdata change.
-	  https://github.com/eggert/tz/commit/8ee11a301cf173afb0c76e0315b9f9ec8ebb9d95
-	  Found by naruse.
-
-Fri Apr 22 20:18:40 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_mul_size_overflow): added to handle
-	  mul overflow efficiently.
-
-	* include/ruby/ruby.h (rb_alloc_tmp_buffer2): use rb_mul_size_overflow
-	  and avoid division where it can define DSIZE_T.
-
-	* gc.c (xmalloc2_size): moved from ruby.h and use rb_mul_size_overflow.
-
-Fri Apr 22 20:34:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* time.c (time_asctime): [DOC] add ctime example, not only
-	  asctime.  [ruby-core:75126] [Bug #12310]
-
-Fri Apr 22 18:44:32 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* variable.c: use uint32_t instead of long to avoid confusion about
-	  the type of ivtbl->numiv.
-
-Fri Apr 22 15:09:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval_jump.c (exec_end_procs_chain): restore previous error info
-	  for each end procs.  [ruby-core:75038] [Bug #12302]
-
-Fri Apr 22 15:04:56 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* tool/redmine-backporter.rb: the fullpath of merger.rb is too long to
-	  copy&paste on Windows.  show shorter name instead on the platform.
-	  I'm sure that the user of this command on Windows is only me.
-
-Fri Apr 22 14:52:04 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* tool/merger.rb: remove temporary file.
-
-Fri Apr 22 11:27:03 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/net/http.rb: Improve documentation for SSL requests via GET method.
-	  [fix GH-1325][ci skip] Patch by @jsyeo
-
-Fri Apr 22 10:51:13 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/webrick/ssl.rb: Support to add SSLCiphers option.
-	  [fix GH-1321] Patch by @rhadoo
-
-Fri Apr 22 10:43:19 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* file.c, win32/file.c: Removed obsoleted safe level checks.
-	  [fix GH-1327] Patch by @cremno
-
-Fri Apr 22 10:01:48 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* benchmark/bm_so_meteor_contest.rb: fix a typo.
-	  [fix GH-1330][ci skip] Patch by @sachin21
-
-Fri Apr 22 04:57:01 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* gc.c (rb_alloc_tmp_buffer_with_count): added like xmalloc2 to
-	  avoid duplicated check of size.
-
-	* gc.c (ruby_xmalloc2): added to keep separate layers.
-
-	* include/ruby/ruby.h (rb_alloc_tmp_buffer2): added to check
-	  the size more statically.
-
-Fri Apr 22 04:54:40 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* include/ruby/ruby.h (LIKELY): moved from internal.h.
-
-	* include/ruby/ruby.h (UNLIKELY): ditto.
-
-Thu Apr 21 01:44:19 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* gc.c (objspace_malloc_prepare): remove size check because it is
-	  used by objspace_xmalloc and objspace_xcalloc.
-	  objspace_xmalloc introduces its own check in this commit.
-	  objspace_xcalloc checks with xmalloc2_size (ruby_xmalloc2_size).
-
-	* gc.c (objspace_xmalloc0): common xmalloc function.
-
-	* gc.c (objspace_xmalloc): introduce its own size check.
-
-	* gc.c (objspace_xmalloc2): separated from ruby_xmalloc2 to clarify
-	  the layer who has the responsibility to check the size.
-
-	* gc.c (objspace_xrealloc): remove duplicated size check.
-
-	* gc.c (ruby_xmalloc2): use objspace_xmalloc2.
-
-	* include/ruby/ruby.h (ruby_xmalloc2_size): follow the size limit
-	  as SSIZE_MAX. Note that ISO C says size_t is unsigned integer.
-
-Thu Apr 21 12:14:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: check if succeeded in creating config.h.
-
-	* tool/ifchange: ignore failures when TEST_COLORS unmatched. just
-	  use the default value if expected name is not contained in it.
-	  [ruby-core:75046] [Bug #12303]
-
-Wed Apr 20 17:33:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/cgi/escape/escape.c (cgiesc_unescape): define unescape
-	  method instead of _unescape, and should pass the optional
-	  argument to the super method.
-
-	* lib/cgi/util.rb (CGI::Util#_unescape): remove intermediate
-	  method.
-
-Wed Apr 20 15:52:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (syntax_error_initialize): move the default message,
-	  "compile error", from parse.y.  the default parameter should
-	  belong to the class definition.
-
-	* parse.y (yycompile0): use the default parameter.
-
-Wed Apr 20 10:25:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (append_compile_error): use rb_syntax_error_append.
-
-	* error.c (rb_syntax_error_append): append messages into a
-	  SyntaxError exception instance.
-
-	* parse.y (yycompile0): make new SyntaxError instance in main
-	  mode, otherwise error_buffer should be a SyntaxError if error
-	  has occurred.
-
-Tue Apr 19 17:42:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (err_vcatf): rename, and separate appending message from
-	  creating a string buffer.
-
-	* error.c (rb_syntax_error_append): merge rb_error_vsprintf and
-	  rb_compile_err_append.
-
-	* parse.y (parser_compile_error): use rb_syntax_error_append.
-
-Tue Apr 19 13:46:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (append_compile_error, compile_bug): pass iseq and get
-	  error info and file from it, not by the thread error info.
-
-	* error.c (rb_report_bug_valist): take va_list instead of variadic
-	  arguments, and just report the bug but not abort.
-
-Tue Apr 19 13:18:12 2016  Naotoshi Seo  <sonots@gmail.com>
-
-	* lib/time.rb: revert r54167 because it would break
-	  backward compatibilities, and it is documented that
-	  Time.parse does not take into account time zone
-	  abbreations other than ones described in RFC 822
-
-Tue Apr 19 13:12:03 2016  Naotoshi Seo  <sonots@gmail.com>
-
-	* ChangeLog: Fix dates of previous commits
-
-Tue Apr 19 12:45:03 2016  Naotoshi Seo  <sonots@gmail.com>
-
-	* ChangeLog: Add descriptions for logger updates
-	* NEWS: Add descriptions for logger updates
-
-Tue Apr 19 12:45:02 2016  Naotoshi Seo  <sonots@gmail.com>
-
-	* lib/logger.rb: Add shift_period_suffix option
-
-Tue Apr 19 12:45:01 2016  Naotoshi Seo  <sonots@gmail.com>
-
-	* lib/logger.rb: Allow specifying logger parameters in constructor
-	  such as level, progname, datetime_format, formatter.
-
-Mon Apr 18 16:07:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_peephole_optimize): should not replace the
-	  current target INSN, not to follow the replaced dangling link in
-	  the caller.  [ruby-core:74993] [Bug #11816]
-
-Mon Apr 18 12:56:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (flo_truncate): add an optional parameter, digits, as
-	  well as Float#round.  [Feature #12245]
-
-	* numeric.c (int_truncate): add an optional parameter, digits, as
-	  well as Integer#round.  [Feature #12245]
-
-Sun Apr 17 04:18:56 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* tool/redmine-backporter.rb: revisions are strings.
-
-Sat Apr 16 14:26:49 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* ext/date/date_core.c : remove not used f_getlocal macro.
-	  After r54553 f_getlocal macro is not used.
-
-Sat Apr 16 14:15:24 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* ext/date/date_core.c : remove not used f_utc6 macro.
-	  After r54169 f_utc6 macro is not used.
-
-Sat Apr 16 10:00:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* struct.c (struct_make_members_list, rb_struct_s_def): member
-	  names should be unique. [ruby-core:74971] [Bug #12291]
-
-	* struct.c (struct_make_members_list): extract making member name
-	  list from char* va_list, with creating symbols without
-	  intermediate IDs.
-
-Sat Apr 16 01:33:27 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* tool/redmine-backporter.rb: sort revisions.
-
-Sat Apr 16 01:16:02 2016  Tanaka Akira  <akr@fsij.org>
-
-	* array.c (rb_ary_sum): Don't yield same element twice.
-	  Found by nagachika.
-
-Sat Apr 16 01:03:32 2016  Tanaka Akira  <akr@fsij.org>
-
-	* array.c (rb_ary_sum): Fix SEGV by [1/2r, 1].sum.
-
-Fri Apr 15 23:52:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* rational.c (rb_rational_plus): rename from rb_rational_add
-	  to be aligned with rb_fix_plus.
-
-	* array.c (rb_ary_sum): ditto.
-
-	* internal.h: ditto.
-
-Fri Apr 15 23:42:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* rational.c (rb_rational_add): rename from nurat_add.
-
-	* array.c (rb_ary_sum): use rb_rational_add directly.
-
-	* test/ruby/test_array.rb (test_sum): add assertions for an array of
-	  Rational values.
-
-Fri Apr 15 22:31:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* array.c (rb_ary_sum): apply the precision compensated algorithm
-	  for an array in which Rational and Float values are mixed.
-
-	* test/ruby/test_array.rb (test_sum): add assertions for the above
-	  change.
-
-Fri Apr 15 22:30:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (rb_thread_setname): defer setting native thread name
-	  set in initialize until the native thread is created.
-	  [ruby-core:74963] [Bug #12290]
-
-Fri Apr 15 20:27:16 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/irb/ext/save-history.rb: Fix NoMethodError when method is not defined.
-
-Fri Apr 15 15:38:58 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* common.mk (benchmark): order options for built-ruby and compare-ruby.
-
-Fri Apr 15 14:14:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* test/ruby/test_array.rb (test_sum): add assertions for Rational and
-	  Complex numbers.
-
-Fri Apr 15 10:07:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/io/console/console.c (console_key_pressed_p): raise the same
-	  exception, "unknown virtual key code", for names with nul chars.
-	  though console_win32_vk() considers the length and can deal with
-	  nul chars, rb_sprintf() raised at PRIsVALUE previously, so quote
-	  it if it is unprintable.
-
-Fri Apr 15 09:02:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/io/console/console.c (rb_sym2str): fallback definition for
-	  older ruby.  [ruby-core:74953] [Bug #12284]
-
-Thu Apr 14 21:46:36 2016  Tanaka Akira  <akr@fsij.org>
-
-	* array.c (rb_ary_sum): Support the optional argument, init, and
-	  block.
-
-Thu Apr 14 19:02:41 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/irb/ext/save-history.rb: suppress warning: method redefined;
-	  discarding old save_history=.
-
-Thu Apr 14 14:58:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/tk/tkutil/tkutil.c (tk_hash_kv): the third argument can be
-	  nil not only an Array.  reported by @windwiny at
-	  https://github.com/ruby/ruby/commit/cdaa94e#commitcomment-17096618
-
-Thu Apr 14 14:28:55 2016  cremno phobia  <cremno@mail.ru>
-
-	* cont.c (fiber_initialize_machine_stack_context): fix wrong
-	  _MSC_VER check, should be decimal but not hexadecimal.
-	  [ruby-core:74936] [Bug #12279]
-
-Wed Apr 13 22:51:38 2016  Tanaka Akira  <akr@fsij.org>
-
-	* array.c (rb_ary_sum): Array#sum is implemented.
-	  Kahan's compensated summation algorithm for precise sum of float
-	  numbers is moved from ary_inject_op in enum.c.
-
-	* enum.c (ary_inject_op): Don't specialize for float numbers.
-
-	  [ruby-core:74569] [Feature #12217] proposed by mrkn.
-
-Wed Apr 13 15:56:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (flo_ceil): add an optional parameter, digits, as
-	  well as Float#round.  [Feature #12245]
-
-	* numeric.c (flo_floor): add an optional parameter, digits, as
-	  well as Float#round.  [Feature #12245]
-
-	* numeric.c (int_ceil): add an optional parameter, digits, as
-	  well as Integer#round.  [Feature #12245]
-
-	* numeric.c (int_floor): add an optional parameter, digits, as
-	  well as Integer#round.  [Feature #12245]
-
-Wed Apr 13 14:47:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (Init_File): add alias File.empty? to File.zero?.
-	  [Feature #9969]
-
-Wed Apr 13 14:36:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (assign_in_cond): allow multiple assignment in
-	  conditional expression.  [Feature #10617]
-
-Wed Apr 13 14:11:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (rb_big_size): add wrapper function of BIGSIZE and
-	  rename the method function with _m suffix.
-
-	* numeric.c (int_round_zero_p): extracted from rb_int_round.
-	  optimize for Bignum, and convert VALUE returned by Numeric#size
-	  to long.
-
-Wed Apr 13 12:00:08 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* test/ruby/test_basicinstructions.rb: add a test to check access
-	  instance variables on special const objects.
-
-	  All of such objects are frozen, so that we can not set instance
-	  variables for them. But we can read instance variables and return
-	  default value (nil).
-
-Tue Apr 12 20:40:35 2016  Kaneko Yuichiro  <spiketeika@gmail.com>
-
-	* ext/date/date_core.c (time_to_time): should preserve timezone
-	  info.  [ruby-core:74889] [Bug #12271]
-
-Tue Apr 12 11:51:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (new_label_body): initialize bit fields, since
-	  compile_data_alloc does not clear the memory.  [Bug #12082]
-
-Mon Apr 11 20:18:43 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm_backtrace.c (frame2klass): filter only for imemo_ment.
-	  T_IMEMO/imemo_iseq can be passed here.
-
-Mon Apr 11 17:43:04 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_optimize): disable tail call optimization in
-	  rescued, rescue, and ensure blocks.
-	  [ruby-core:73871] [Bug #12082]
-
-Mon Apr 11 06:54:39 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (apply2files): apply to a VALUE vector instead of a
-	  temporary array.
-
-Sun Apr 10 20:54:16 2016  Joe Swatosh  <joe.swatosh@gmail.com>
-
-	* ext/win32/lib/win32/registry.rb (DeleteValue, DeleteKey): fix
-	  API names.  [ruby-core:74863] [Bug #12264]
-
-Sun Apr 10 17:47:42 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (rb_realpath_internal): no argument conversions since
-	  this internal function does not need to_path and encoding
-	  conversions, not to be affected by the default internal
-	  encoding.
-
-Sat Apr  9 10:03:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* load.c (rb_f_load): raise with the original path name before
-	  encoding conversion.
-
-Sat Apr  9 02:05:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* bignum.c (rb_cstr_parse_inum): [EXPERIMENTAL] new function to
-	  parse integer in C-string with length.  the name and the
-	  arguments may be changed in the future.
-
-	* bignum.c (rb_str_to_inum): preserve encoding of the argument in
-	  error messages, and no longer needs to copy non-terminated
-	  strings.
-
-	* bignum.c (rb_str2big_{poweroftwo,normal,karatsuba,gmp}): ditto.
-
-Thu Apr  7 19:04:03 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* doc/regexp.rdoc (comments): [DOC] terminators cannot appear in
-	  comments.  [ruby-core:74838] [Bug #12256]
-
-Thu Apr  7 11:24:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/tk/tkutil/tkutil.c (cbsubst_initialize): fix out-of-bound
-	  access when no arguments given.  `p Tk::Event.new` crashed.
-
-Fri Apr  1 01:26:00 2016  Benoit Daloze  <eregontp@gmail.com>
-
-	* ext/coverage/coverage.c: Fully reset coverage to not persist global state.
-	  It was returning old file coverages as empty arrays to the user.
-	  [ruby-core:74596] [Bug #12220]
-
-	* ext/coverage/coverage.c (rb_coverages): remove unused static state.
-
-	* thread.c: Moved and renamed coverage_clear_result_i to reset_coverage_i.
-
-	* test/coverage/test_coverage.rb: improve precision of tests.
-
-Wed Apr  6 22:41:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (rb_cv_lgamma_r_m0): fix the condition for
-	  lgamma_r(-0.0).  [Bug #12249]
-
-Wed Apr  6 17:38:42 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* tool/downloader.rb (RubyGems.download): follow the change of the
-	  rubygems ssl_certs directory tree introduced by previous commit.
-
-Wed Apr  6 15:00:27 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.6.3.
-	  Please see entries of 2.6.3 on
-	  https://github.com/rubygems/rubygems/blob/master/History.txt
-
-Wed Apr  6 14:13:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (rb_cv_lgamma_r_m0): check if lgamma_r(-0.0)
-	  returns negative infinity.  [Bug #12249]
-
-	* math.c (ruby_lgamma_r): define by the configured result.
-
-Wed Apr  6 10:56:15 2016  Anton Davydov  <antondavydov.o@gmail.com>
-
-	* lib/logger.rb (Logger#level=): remove unnecessary local
-	  variable.
-
-	* lib/logger.rb (Logger#initialize, Logger#reopen): [DOC] mention
-	  the default values.  cherrypicked from [GH-1319].
-
-Wed Apr  6 10:17:53 2016  cremno phobia  <cremno@mail.ru>
-
-	* math.c (ruby_lgamma_r): missing/lgamma_r.c is used on Windows,
-	  since msvcrt does not provide it.
-
-	* missing/lgamma_r.c (lgamma_r): fix lgamma(-0.0).
-	  [ruby-core:74823] [Bug #12249]
-
-Wed Apr  6 01:22:55 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* math.c (ruby_lgamma_r): mswin's lgamma_r also seems to be wrong.
-	  cf. [Bug #12249]
-
-Wed Apr  6 00:53:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* math.c (ruby_lgamma_r): fix lgamma(-0.0) on mingw and OSX.
-
-	* math.c (ruby_tgamma): fix tgamma(-0.0) on mingw.
-	  [ruby-core:74817] [Bug #12249]
-
-Tue Apr  5 14:50:28 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/nkf.c (mime_putc): fix typo.
-	  [Bug #12202] [ruby-core:74802]
-
-Tue Apr  5 00:06:44 2016  Aeris  <aeris@imirhil.fr>
-
-	* ext/openssl/ossl_ssl.c (ossl_ssl_tmp_key): Access to ephemeral
-	  TLS session key in case of forward secrecy cipher.  Only
-	  available since OpenSSL 1.0.2.  [Fix GH-1318]
-
-	* ext/openssl/extconf.rb: Check for SSL_get_server_tmp_key.
-
-Mon Apr  4 23:37:05 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_core.h (rb_vm_struct): make at_exit a single linked list but
-	  not RArray, not to mark the registered functions by the write
-	  barrier.  based on the patches by Evan Phoenix.
-	  [ruby-core:73908] [Bug #12095]
-
-Mon Apr  4 17:43:45 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: change default value of
-	  RUBY_GC_HEAP_FREE_SLOTS_MIN_RATIO 0.3 -> 0.2
-	  RUBY_GC_HEAP_FREE_SLOTS_MAX_RATIO 0.8 -> 0.65
-
-	  These values are same as Ruby 2.0.0.
-
-	  This change cause GC counts.
-	  However, generational GC reduced each (minor) GC time and
-	  increase memory locality. So that not so big impact on my
-	  benchmarking results.
-	  (surprisingly, this fix speed up programs on some cases)
-
-	  You can change these values by environment variables
-	  if you feel wrong.
-
-Mon Apr  4 17:36:52 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (get_envparam_double): take an upper_bound.
-
-	  And also take an accept_zero flag which allow to accept zero
-	  even if lower_bound is set.
-
-	* gc.c (ruby_gc_set_params): fix parameters.
-
-	  RUBY_GC_HEAP_FREE_SLOTS_MAX_RATIO set 0.9 as *lower_bound*, so that
-	  it should be upper_bound.
-	  Set RUBY_GC_HEAP_FREE_SLOTS_MIN_RATIO as lower bound.
-
-	  Also set lower/upper bound of RUBY_GC_HEAP_FREE_SLOTS_GOAL_RATIO to
-	  RUBY_GC_HEAP_FREE_SLOTS_MIN/MAX_RATIO.
-
-Mon Apr  4 16:41:32 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* vm.c (Init_VM): should pass tokens.
-
-Sun Apr  3 09:34:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (flodivmod): round division if it is a finite number
-	  and module is required.
-
-	* numeric.c (dbl2ival): do not round here.
-
-	* numeric.c (flo_ceil): use dbl2ival.
-
-	* numeric.c (flo_round): round explicitly.
-
-Sat Apr  2 15:24:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/intern.h (rb_check_arity): returns argc.
-
-Fri Apr  1 20:58:33 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb, casefold.h: Data generation to implement
-	  swapcase functionality for titlecase characters. Swapcase isn't defined
-	  by Unicode, because the purpose/usage of swapcase is unclear anyway.
-	  The implementation follows a proposal from Nobu, swapping the case of
-	  each component of a titlecase character individually.
-	  This means that the titlecase characters have to be decomposed.
-
-	* enc/unicode.c: Code using the above data.
-
-	* test/ruby/enc/test_case_mapping.rb: Tests for the above.
-
-Fri Apr  1 14:55:28 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* configure.in (AC_CONFIG_FILES): $srcdir/.git can be a file pointing
-	  the real git_dir, such as when the git working tree is a "linked
-	  working tree" (a working tree created by git-worktree). So use
-	  git-rev-parse --git-dir to check if $srcdir is the top-level of a git
-	  repository, not just checking if the $srcdir/.git directory does exist
-	  or not.  [ruby-core:74759] [Bug #12239]
-
-	* tool/change_maker.rb: use tool/vcs.rb to detect VCS. This used to have
-	  its own VCS detection code, while we have tool/vcs.rb.
-
-	* tool/vcs.rb (detect): remove code duplication
-
-Fri Apr  1 04:50:44 2016  Eric Wong  <e@80x24.org>
-
-	* ext/openssl/ossl_ssl.c (ossl_sslctx_s_alloc):
-	  enable SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER by default
-	  [Bug #12126]
-
-Fri Apr  1 01:13:55 2016  Benoit Daloze  <eregontp@gmail.com>
-
-	* thread.c (update_coverage): Do not track coverage in loaded files
-	  after Coverage.result. Avoids out-of-bounds access. [Bug #12237]
-
-	* ext/coverage/coverage.c (coverage_clear_result_i): document.
-
-Thu Mar 31 19:16:16 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: need to set initial value of GC_HEAP_FREE_SLOTS_GOAL_RATIO.
-
-Thu Mar 31 17:50:27 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: change additional allocation policy.
-
-	  Introduce new environment variable
-	  RUBY_GC_HEAP_FREE_SLOTS_GOAL_RATIO (goal_ratio) to calculate the
-	  ratio of additional memory.
-
-	  Before this change, we add pages with the following formula
-	  (when free_slots < total_pages * RUBY_GC_HEAP_FREE_SLOTS_MIN_RATIO):
-	    next_pages = total_pages * RUBY_GC_HEAP_GROWTH_FACTOR
-
-	  This addition can allocate too much.
-
-	  With this change, we increase pages to satisfy the following formula:
-	    next_free_slots = next_total_slots * goal_ratio
-	  where
-	    next_free_slots = free_slots + adding_slots
-	    next_total_slots = total_slots + adding_slots.
-
-	  If you want to prepare many free slots, increase this ratio.
-
-	  If this variable is 0, then simply multiply
-	  RUBY_GC_HEAP_GROWTH_FACTOR.
-
-	* gc.c (get_envparam_double): enable to accept 0.
-
-Thu Mar 31 17:48:25 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_marks_finish): fix syntax error.
-
-Thu Mar 31 16:49:36 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: simplify allocate/free detecting logic at the end of marking.
-
-	  Before this change, heap_pages_min_slots are calculated at the
-	  beginning sweeping phase. And this value is used at the end of
-	  *next* marking phase.
-
-	  To simplify it, we use this value at the end of this marking phase.
-	  It means that we don't need to store this value as global state.
-
-	  Also heap_pages_max_slots is calculated at the begging of sweeping
-	  phase and used at the end of sweeping phase.
-	  To simplify this logic, we introduced new global value
-	  heap_pages_freeable_pages it means extra pages count we can free.
-	  gc_sweep_step() checks this value and moves empty pages to tomb_heap
-	  not more than this value.
-
-	  Because of this fix, heap_pages_swept_slots is no longer needed.
-
-	* gc.c (rb_objspace_t::heap_pages): restruct the objspace global
-	  status.
-
-	  remove the following fields
-	    * swept_slots (and heap_pages_swept_slots)
-	    * min_free_slots (and heap_pages_min_free_slots)
-	    * max_free_slots (and heap_pages_max_free_slots)
-	  And add the following filed.
-	    * freeable_pages (and heap_pages_freeable_pages)
-
-	* gc.c (heap_pages_free_unused_pages): unlink tomb heap pages
-	  because tomb heap should have only freeable pages.
-
-	* gc.c (heap_extend_pages): add parameters for future extension.
-
-Thu Mar 31 16:43:02 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: add GC parameters to configure the following values:
-	  * RUBY_GC_HEAP_FREE_SLOTS_MIN_RATIO:
-	    allocate additional pages when free slots is lower than
-	    the value (total_slots * (this ratio)).
-	  * RUBY_GC_HEAP_FREE_SLOTS_MAX_RATIO:
-	    allow to free pages when free slots is greater than
-	    the value (total_slots * (this ratio)).
-
-	  Before this change, these values are hard coded.
-
-	* gc.c (ruby_gc_params_t): ditto.
-
-	* gc.c (ruby_gc_set_params): ditto.
-
-Thu Mar 31 15:59:17 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_verify_heap_page): check the number of zombies.
-
-	* gc.c (gc_verify_heap_pages): check also tomb heap.
-
-Thu Mar 31 15:48:18 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c (gc_page_sweep): return free slots count.
-
-	* gc.c (gc_sweep_step): use returned free slots count.
-
-	* gc.c (gc_sweep_step): change variable name `next'
-	  to `next_sweep_page'.
-
-Thu Mar 31 11:33:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/date/date_core.c (d_lite_strftime, dt_lite_strftime): [DOC]
-	  fix indent not to be a big sole verbatim.
-
-Thu Mar 31 11:18:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/date/date_core.c (Init_date_core): [DOC] fix misplaced doc
-	  of DateTime.  [ruby-core:74729] [Bug #12233]
-
-Thu Mar 31 03:41:02 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/nkf.c: Merge upstream 69f7e74dde.
-	  fix indent.
-
-Wed Mar 30 16:33:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* extension.rdoc, extension.ja.rdoc: [DOC] Fix some errors.
-	  Renamed files, wrong method names or argument types; the example
-	  GetDBM macro is now updated to the current version of the actual
-	  code.  patch by Marcus Stollsteimer in [ruby-core:74690].
-	  [Bug #12228]
-
-Wed Mar 30 09:46:01 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/open-uri.rb: Use `userinfo` for authenticated proxy.
-	  [fix GH-1148] Patch by @SokichiFujita
-	* test/open-uri/test_open-uri.rb: ditto.
-	  [fix GH-1309] Patch by @jdamick
-
-Wed Mar 30 01:56:06 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* ext/nkf/nkf-utf8/nkf.c: Merge upstream 4f3edf80a0.
-	  patched by Anton Sivakov [Bug #12201] [Bug #12202]
-
-Wed Mar 30 01:54:30 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* tool/redmine-backporter.rb: add given revision to current changesets
-	  on associating the revision to the related ticket.
-
-Wed Mar 30 01:53:17 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* tool/merger.rb: update revision.h before merge.
-
-Tue Mar 29 19:33:54 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* addr2line.c: define toupper for its use. fix r54391.
-
-Tue Mar 29 19:23:46 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* include/ruby/ruby.h (rb_isupper, rb_islower, rb_isalpha, rb_isdigit,
-	  rb_isalnum, rb_isxdigit, rb_isblank, rb_isspace, rb_isblank,
-	  rb_iscntrl, rb_isprint, rb_ispunct, rb_isgraph,
-	  rb_tolower, rb_toupper): use inline function to avoid function call.
-
-	* include/ruby/ruby.h (rb_isascii): use inline function to clarify
-	  the logic.
-
-Tue Mar 29 18:56:55 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* tool/redmine-backporter.rb (backport): show merger.rb's path.
-
-	* tool/redmine-backporter.rb (show): show current issue again if no
-	  ticket number is given.
-
-	* tool/redmine-backporter.rb (rel): show error message if current
-	  bugs.ruby-lang.org doesn't support the API.
-
-Tue Mar 29 18:54:34 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* tool/merger.rb: support to backport header as backport identifier.
-	  Now you can specify by 'merge revision(s) 49254: [Backport #10738]'.
-
-Tue Mar 29 16:53:44 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb, casefold.h: Tweaked handling of 6
-	  special cases in CaseUnfold_11_Table.
-
-	* enc/unicode.c: Adjustments for above.
-
-	* test/ruby/enc/test_case_mapping.rb: Tests for the above: Some tests in
-	  test_titlecase activated; test_greek added. A test in test_cherokee fixed.
-
-Tue Mar 29 13:31:00 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Cleaned up some comments.
-
-Tue Mar 29 13:24:56 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb, casefold.h: Removing data for idempotent
-	  titlecasing.
-
-	* enc/unicode.c: Adjust code to data removal.
-
-Tue Mar 29 12:45:18 2016  Laurent Arnoud  <laurent@spkdev.net>
-
-	* lib/webrick/httpresponse.rb: Move error_body to method. It allow to
-	  override the body more easily. [fix GH-1307]
-	* test/webrick/test_httpresponse.rb: ditto.
-
-Tue Mar 29 06:40:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (rb_compile_err_append): rb_thread_t::base_block is no
-	  longer used.
-
-	* iseq.c (rb_iseq_compile_with_option): ditto, no protection is
-	  needed.
-
-Tue Mar 29 06:39:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (struct parser_params): move parse_in_eval flag from
-	  rb_thread_t.
-
-	* parse.y (rb_parser_set_context): set parsing context, not only
-	  mild error flag.
-
-	* iseq.c (rb_iseq_compile_with_option): the parser now refers no
-	  thread local states to be restored.
-
-	* vm_eval.c (eval_string_with_cref): ditto.
-
-Mon Mar 28 21:24:02 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* numeric.c (int_pos_p): fix typos.
-
-Mon Mar 28 14:54:49 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Refactoring in preparation for data reduction for
-	  titlecase.
-
-Mon Mar 28 14:36:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Minor refactoring for I WITH DOT ABOVE.
-
-Mon Mar 28 14:26:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Removed code now covered by data from table.
-
-Mon Mar 28 11:49:21 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Adding comments. [ci skip]
-
-Mon Mar 28 11:30:23 2016  Shinichi Maeshima  <netwillnet@gmail.com>
-
-	* lib/rubygems.rb: Fix `Gem.find_spec_for_exe` picks oldest gem.
-	  https://github.com/travis-ci/travis-ci/issues/5798
-	  https://github.com/rubygems/rubygems/pull/1566
-	* test/rubygems/test_gem.rb: ditto.
-
-Mon Mar 28 11:26:31 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.6.2.
-	  Please see entries of 2.6.2 on
-	  https://github.com/rubygems/rubygems/blob/master/History.txt
-
-Mon Mar 28 11:02:31 2016  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* lib/rubygems/test_case.rb: Fix test on Windows for inconsistent temp path.
-	  https://github.com/rubygems/rubygems/pull/1554
-	  [Bug #12193][ruby-core:74431]
-
-Mon Mar 28 08:19:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* sprintf.c (rb_str_format): refactor floating point format of
-	  Rational by using generic Integer functions.
-
-	* sprintf.c (rb_str_format): fix buffer overflow, length must be
-	  greater than precision.  reported by William Bowling <will AT
-	  wbowling.info>.
-
-Sun Mar 27 12:13:37 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* sprintf.c (rb_str_format): convert Rational to floating point
-	  format by using generic Integer functions, not by methods which
-	  can be overwritten.
-
-Sat Mar 26 10:55:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (rb_int2str): conversion function to String for
-	  generic Integer.
-
-	* numeric.c (rb_int_round): rounding function for generic
-	  Integers.
-
-	* numeric.c (rb_int_{uminus,plus,minus,mul,idiv,modulo}): basic
-	  arithmetic functions for generic Integers.
-
-	* numeric.c (FIXNUM_{POSITIVE,NEGATIVE,ZERO}_P): predict macros
-	  only for Fixnum.
-
-Sat Mar 26 06:34:24 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* localeinit.c (rb_locale_charmap_index): fix prototype.
-	  patched by Andreas Schwab [Bug #12218]
-
-Fri Mar 25 16:40:48 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_mapping.rb: Additional tests title case;
-	  some not yet activated.
-
-Fri Mar 25 13:38:11 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* ext/openssl/extconf.rb: check SSL_CTX_set_next_proto_select_cb
-	  function rather than OPENSSL_NPN_NEGOTIATED macro. it exists
-	  even if it is disabled by OpenSSL configuration.
-	  [ruby-core:74384] [Bug #12182]
-
-	* ext/openssl/ossl_ssl.c: update #ifdef(s) as above.
-
-	* test/openssl/test_ssl.rb: skip NPN tests if NPN is disabled.
-
-Fri Mar 25 11:08:37 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/uri/http.rb (URI::HTTP#initialize): [DOC] fix example,
-	  missing mandatory arguments.  [ruby-core:74540] [Bug #12215]
-
-Fri Mar 25 01:50:58 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* thread_pthread.c (reserve_stack): fix reserving position where
-	  the stack growing bottom to top. [Bug #12118]
-
-Fri Mar 25 01:10:42 2016  Sebastian Schuberth  <sschuberth@gmail.com>
-
-	* lib/mkmf.rb (find_executable0): On Windows, it is actually valid
-	  to surround individual PATH directory entries with double
-	  quotes. Remove these before joining the path as otherwise the
-	  literal quotes would become part of the path, resulting in the
-	  executable not to be found.  [Fix GH-1305]
-
-Thu Mar 24 22:38:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* strftime.c (FMT, FMTV): remove recursive-assignments to get rid
-	  of undefined behavior.  [ruby-core:74532] [Bug #12213]
-
-Thu Mar 24 17:44:02 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* strftime.c (FMT_PADDING): extract format for padding.
-
-	* strftime.c (FMT_PRECISION): extract precision formula.
-
-	* strftime.c (FMTV): append formatted string to expand the result.
-
-Thu Mar 24 14:20:21 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* strftime.c (STRFTIME): deal with case conversion flags for
-	  recursive formats.
-
-Thu Mar 24 12:43:26 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/date/date_core.c (dt_lite_iso8601): strftimev() always
-	  returns a String, so append them directly.
-
-	* ext/date/date_core.c (d_lite_jisx0301, iso8601_timediv),
-	  (dt_lite_jisx0301): format by the format string in local buffer
-	  to prevent intermediate strings from GC.
-
-	* ext/date/date_core.c (mk_inspect_raw, mk_inspect): inspect by
-	  "%+"PRIsVALUE, to prevent intermediate strings from GC.
-
-Thu Mar 24 11:43:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* strftime.c (rb_strftime_with_timespec): remove unnecessary
-	  check, as `s` equals to `endp` when recursed STRFTIME resized
-	  the capacity same as the size.
-
-Wed Mar 23 21:48:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* enum.c (ary_inject_op): put subtract operation out of if-clause.
-
-Wed Mar 23 21:38:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* enum.c (ary_inject_op): Use Kahan's compensated summation algorithm
-	  for summing up float values.
-
-Wed Mar 23 20:56:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* strftime.c (rb_strftime_with_timespec): append formatted results
-	  to the given string with expanding, and also deal with NUL chars.
-
-	* strftime.c (rb_strftime, rb_strftime_timespec): return formatted
-	  string, not the length put in the given buffer.
-
-	* time.c (rb_strftime_alloc): no longer needs to retry with
-	  reallocating buffers.
-
-	* time.c (time_strftime): no longer needs to split by NUL chars.
-
-Wed Mar 23 14:23:54 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/rdoc/ri/driver.rb (interactive): rescue NotFoundError raised in
-	  expand_name. (display_name rescues NotFoundError by itself,
-	  the original logic looks buggy...)
-
-Wed Mar 23 11:44:53 2016  cremno  <cremno@mail.ru>
-
-	* marshal.c (r_long): cast to `signed char`, which is used
-	  already, instead of SIGN_EXTEND_CHAR.
-
-	* parse.y: SIGN_EXTEND_CHAR is no longer used.  [Fix GH-1302]
-
-Wed Mar 23 11:38:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* cygwin/GNUmakefile.in (MSYS2_ARG_CONV_EXCL_PARAM):
-	  * add missing parentheses and remove double quotes.
-	  * rename to get rid of recursive references.
-	  * as --excludes-dir option is for a path name, its argument
-	    should be converted.
-	  [ruby-dev:49526] [Bug #12199]
-
-Wed Mar 23 10:39:38 2016  Koichi ITO  <koic.ito@gmail.com>
-
-	* variable.c: Added documentation about order of `Module#constants`
-	  [ci skip][Bug #12121][ruby-dev:49505][fix GH-1301]
-
-Tue Mar 22 21:08:30 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* include/ruby/oniguruma.h: Additional flag for characters that are titlecase.
-
-	* enc/unicode/case-folding.rb, casefold.h: Using above flag in data.
-
-	* enc/unicode.c: Marking capitalized character as unmodified if it is
-	  already titlecase.
-
-	* test/ruby/enc/test_case_mapping.rb: Tests for above functionality.
-
-Tue Mar 22 14:18:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (lambda_body, parser_yylex): warn mismatched indentation
-	  of lambda block.
-
-Tue Mar 22 11:36:49 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* time.c (wmul): wrong condition.
-	  fixed many test failures on 32bit and LLP64 platforms.
-
-Tue Mar 22 10:31:34 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* time.c (wdiv, wmod): wdivmod0() assumes the 3rd and the 4th arguments
-	  are valid pointers.
-	  maybe checking them in wdivmod0() is better manner, but I guess that
-	  passing real dummy pointers may be faster than checking and branching
-	  in wdivmod0().
-	  this commit fixes SEGV on 32bit and LLP64 platforms.
-
-Tue Mar 22 10:24:04 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* time.c (divmodv): void function never returns any value.
-
-Tue Mar 22 10:11:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/lib/test/unit.rb (Test::Unit::StatusLine#failed): print
-	  failed messages only if replacing mode, otherwise defer them
-	  until the end, to get rid of interleaving failures with progress
-	  messages.  refix r54195.
-
-Tue Mar 22 03:45:03 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* time.c (MUL_OVERFLOW_FIXWV_P): defined for FIXWV.
-
-	* time.c (wmul): use MUL_OVERFLOW_FIXWV_P and only switch.
-
-	* time.c (wmul): use mul which has Fixnum optimization.
-
-	* time.c (rb_time_magnify): If WIDEVALUE_IS_WIDER, wmul() has the same
-	  optimized logic, else mul() has also the similar logic for Fixnum.
-
-	* time.c (rb_time_unmagnify): almost ditto.
-
-Tue Mar 22 03:10:09 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* time.c (divmodv): add the case both arguments are Fixnum.
-
-	* time.c (wquo): use quo which has Fixnum optimization.
-
-	* time.c (wdivmod0): added for WIDEVALUE_IS_WIDER.
-
-	* time.c (wdivmod): use wdivmod0 and divmodv.
-	  divmodv has Fixnum optimization.
-
-	* time.c (wdiv): use wdivmod0 and div to avoid the use of divmodv which
-	  calls id_quo whose return value is array.
-
-	* time.c (wmod): use wdivmod0 and mod to avoid the use of divmodv which
-	  calls id_quo whose return value is array.
-
-Mon Mar 21 22:32:50 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* internal.h (rb_fix_divmod_fix): like r54213, use FIX2NUM only if
-	  x == FIXNUM_MIN && y == -1. This must be a rare case and it is
-	  expected compiler to handle well.
-
-Mon Mar 21 22:15:11 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* time.c (mod): Add Fixnum case.
-
-	* time.c (quo): c can be Fixnum except a == FIXNUM_MIN && b == -1.
-	  Such case can be optimized out because quo()'s argument is constant.
-
-Mon Mar 21 22:09:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h (rb_fix_mul_fix): multiply converted values, not
-	  object VALUEs.
-
-Mon Mar 21 20:18:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk (TEST_EXCLUDES, EXCLUDE_TESTFRAMEWORK): use full spell
-	  long option.
-
-	* cygwin/GNUmakefile.in (MSYS2_ARG_CONV_EXCL): suppress path name
-	  conversions by msys2.  [ruby-dev:49525] [Bug #12199]
-
-Mon Mar 21 19:09:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (enc_succ_alnum_char): try to skip an invalid character
-	  gap between GREEK CAPITAL RHO and SIGMA.
-	  [ruby-core:74478] [Bug #12204]
-
-Mon Mar 21 18:55:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* node.c (rb_gc_mark_node): NODE_MATCH2 can have nd_args, u3,
-	  since r54100.
-
-Sun Mar 20 21:17:13 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* internal.h (rb_int128t2big): declare only when HAVE_INT128_T.
-	  fixed a compile error with VC++ introduced at r54203.
-
-Sun Mar 20 20:10:14 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* internal.h (DLONG): defined if long is 32bit (and LONG_LONG is 64bit;
-	  but LONG_LONG is always defined as 64bit), or there's int128_t.
-
-	* internal.h (DL2NUM): defined if DLONG is defined.
-
-	* internal.h (rb_fix_mul_fix): defined for `Fixnum * Fixnum`.
-
-	* insns.def (opt_mul): use rb_fix_mul_fix().
-
-	* numeric.c (fix_mul): ditto.
-
-	* time.c (mul): ditto.
-
-Sun Mar 20 18:53:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (fix_gt, fix_ge, fix_lt, fix_le): optimize comparisons
-	  Fixnum against Bignum by rb_big_cmp in inversed order without
-	  new Bignum instance.
-
-Sun Mar 20 18:44:52 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* time.c (add): remove FIXABLE() which is in LONG2NUM().
-
-	* time.c (sub): ditto.
-
-	* time.c (mul): ditto.
-
-Sun Mar 20 04:46:02 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* bignum.c (rb_big_cmp): reduce the code.
-
-	* bignum.c (rb_big_eq): If normalized bignum is still bignum,
-	  it must be larger than fixnum.
-
-Sat Mar 20 00:58:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* include/ruby/intern.h (rb_big_odd_p, rb_big_even_p): move to
-	  internal.h so that they are exported only for ruby itself.
-
-	* internal.h (rb_big_odd_p, rb_big_even_p): ditto.
-
-Sat Mar 19 21:56:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/lib/test/unit.rb (Test::Unit::StatusLine#failed): defer
-	  failed messages until the end in verbose mode, to get rid of
-	  interleaving failures with progress messages.
-
-Sat Mar 19 21:53:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (fix_cmp): invert the result as the comparison is
-	  inverted.
-
-Sat Mar 19 18:32:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* numeric.c (int_to_f): raise NotImplementedError when a receiver
-	  class is unknown.
-
-	* test/-ext-/integer/test_my_integer.rb (test_my_integer_to_f): modify
-	  a test for the above change.
-
-Sat Mar 19 18:21:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* bignum.c (Bignum#<=>): remove it because they are unified with
-	  Integer#<=>.
-
-	* numeric.c (Integer#<=>, Fixnum#<=>): move <=> method from Fixnum to
-	  Integer.
-
-	* numeric.c (int_cmp): add this method for Integer#<=>.
-
-	* test/-ext-/integer/test_my_integer.rb (test_my_integer_cmp): add a
-	  test to examine Integer#<=> for unknown subclasses.
-
-Sat Mar 19 14:46:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* iseq.c (rb_iseq_compile_with_option): make the parser in mild
-	  error.
-
-	* load.c (rb_load_internal0): ditto.
-
-	* parse.y (yycompile0): return the error message within the error
-	  to be raised.  [Feature #11951]
-
-	* parse.y (parser_compile_error): accumulate error messages in the
-	  error_buffer.
-
-Sat Mar 19 03:57:13 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* time.c (LOCALTIME): organize #ifdefs.
-
-	* time.c (GMTIME): define only ifndef HAVE_STRUCT_TM_TM_GMTOFF.
-
-Sat Mar 19 03:53:31 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (rb_cv_member_struct_tm_tm_gmtoff): For Linux (glibc)
-	  define _BSD_SOURCE for time.h to define struct tm.tm_gmtoff.
-
-	* time.c: define _BSD_SOURCE at the top.
-
-Sat Mar 19 03:00:50 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* test/-ext-/time/test_new.rb (test_timespec_new): change a gmtoff
-	  test to a better one that does not depend on whether the current
-	  time is in summer time or not.
-
-Fri Mar 19 00:00:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* bignum.c (rb_big_to_f, Bignum#to_f): removed them because they are
-	  unified with int_to_f and Integer#to_f.
-
-	* numeric.c (int_to_f): treat Bignum values directly.
-
-Fri Mar 18 23:41:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* numeric.c (int_to_f, fix_to_f): rename fix_to_f to int_to_f, and add
-	  treatment for subclasses which don't have definitions of to_f method.
-
-	* numeric.c (Integer#to_f, Fixnum#to_f): move to_f method from Fixnum
-	  to Integer.
-
-	* ext/-test-/integer/my_integer.c: define helper class for testing
-	  to_f method for a subclass of Integer.
-
-	* ext/-test-/integer/extconf.rb: ditto.
-
-	* ext/-test-/integer/init.c: ditto.
-
-	* test/-ext-/integer/test_my_integer.rb: examine to_f method for a
-	  subclass of Integer.
-
-Fri Mar 18 22:32:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* include/ruby/intern.h (rb_big_hash): Move to internal.h.
-
-	* internal.h: ditto.
-
-Fri Mar 18 22:10:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* bignum.c (Bignum#eql?): remove its definition because it is unified
-	  with Numeric#eql?.
-
-	* numeric.c (num_eql): treat Bignum values directly.
-
-Fri Mar 18 21:57:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* bignum.c (rb_big_to_s, Bignum#to_s): remove its definition because
-	  it is unified with Integer#to_s.
-
-	* numeric.c (int_to_s): treat Bignum values directly.
-
-Fri Mar 18 21:30:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* numeric.c (int_to_s): Move from fix_to_s.
-
-	* numeric.c (Integer#to_s): Move from Fixnum#to_s.
-
-Fri Mar 18 16:22:24 2016  Victor Nawothnig  <Victor.Nawothnig@gmail.com>
-
-	* parse.y (parse_numvar): NTH_REF must be less than a half of
-	  INT_MAX, as it is left-shifted to be ORed with back-ref flag.
-	  [ruby-core:74444] [Bug#12192] [Fix GH-1296]
-
-Fri Mar 18 12:25:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* gc.c (tick): fix missing close parenthesis.  [Fix GH-1291]
-
-Fri Mar 18 10:24:12 2016  Naotoshi Seo  <sonots@gmail.com>
-
-	* ext/date/date_core.c (datetime_to_time): preserve timezone info
-	  [Bug #12189] [Fix GH-1295]
-
-Fri Mar 18 10:17:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* bignum.c (rb_big_hash): make it public function to be available in
-	  other source files, and remove documentation comment for Bignum#hash.
-
-	* bignum.c (Bignum#hash): remove its definition because it is unified
-	  with Object#hash.
-
-	* include/ruby/intern.h (rb_big_hash): add a prototype declaration.
-
-	* hash.c (any_hash): treat Bignum values directly.
-
-Fri Mar 18 02:35:12 2016  Naotoshi Seo  <sonots@gmail.com>
-
-	* lib/time.rb (parse, strptime): Fix Time.parse/strptime does not
-	  have compatibility with DateTime.parse/strptime in terms of parsing
-	  timezone [Bug #12190] [Fix GH-1297]
-
-Fri Mar 18 02:17:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* numeric.c (fix_zero_p, fix_even_p, fix_odd_p): remove needless
-	  functions.
-
-Fri Mar 18 02:15:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* numeric.c (int_even_p): treat Fixnum and Bignum values directly.
-
-Fri Mar 18 02:07:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* bignum.c (Bignum#even?, Bignum#odd?): remove definitions
-	  because they are unified with Integer#even? and Integer#odd?.
-
-	* numeric.c (Fixnum#zero?, Fixnum#even?, Fixnum#odd?): remove
-	  definitions because they are unified with Numeric#zero?,
-	  Integer#even?, and Integer#odd?.
-
-	* numeric.c (num_zero_p, int_odd_p): treat Fixnum and
-	  Bignum values directly.
-
-	* test/ruby/test_integer.rb (test_odd_p_even_p): remove meaningless
-	  test case.
-
-Fri Mar 18 01:51:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* bignum.c (rb_big_even_p, rb_big_odd_p): make them public functions
-	  to be available in other source files.
-
-	* include/ruby/intern.h (rb_big_even_p, rb_big_odd_p): add prototype
-	  declarations.
-
-Fri Mar 18 00:25:56 2016  Tanaka Akira  <akr@fsij.org>
-
-	* enum.c (ary_inject_op): Implement the specialized code for sum of
-	  float numbers.
-
-Fri Mar 18 00:15:05 2016  Yusuke Endoh  <mame@ruby-lang.org>
-
-	* numeric.c (num_step): use rb_equal for zero check. rb_num_coerce_cmp
-	  created an object which caused extra overhead.
-
-Thu Mar 17 22:21:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/ruby.h (RB_GC_GUARD_PTR): remove intermediate
-	  macro, and expand for each RB_GC_GUARD.  [Fix GH-1293]
-
-Thu Mar 17 22:08:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (iseq_specialized_instruction): move specialization
-	  for opt_newarray_max/min from translation phase.
-
-Thu Mar 17 21:52:09 2016  Yusuke Endoh  <mame@ruby-lang.org>
-
-	* array.c, enum.c: make rdoc format consistent.
-
-Thu Mar 17 21:47:57 2016  Yusuke Endoh  <mame@ruby-lang.org>
-
-	* NEWS: add Array#max, #min, and the optimization.  [Feature #12172]
-
-Thu Mar 17 21:45:02 2016  Yusuke Endoh  <mame@ruby-lang.org>
-
-	* compile.c (NODE_CALL): add optimization shortcut for Array#max/min.
-	  Now `[x, y].max` is optimized so that a temporal array object is not
-	  created in some condition.  [Feature #12172]
-
-	* insns.def (opt_newarray_max, opt_newarray_min): added.
-
-Thu Mar 17 21:35:52 2016  Yusuke Endoh  <mame@ruby-lang.org>
-
-	* array.c (rb_ary_max, rb_ary_min): implement Array#max and min with
-	  arguments.  replace super call with rb_nmin_run.
-
-	* enum.c (nmin_run): exported (as rb_nmin_run).
-
-	* internal.h: added a prototype for rb_nmin_run.
-
-Thu Mar 17 21:24:52 2016  Yusuke Endoh  <mame@ruby-lang.org>
-
-	* array.c (rb_ary_max, rb_ary_min): implement a block by itself instead
-	  of delegating Enumerable#max/min.
-
-Thu Mar 17 21:09:34 2016  Yusuke Endoh  <mame@ruby-lang.org>
-
-	* array.c (rb_ary_max, rb_ary_min): Array#max and Array#min added.
-	  [Feature #12172]
-
-	* internal.h (OPTIMIZED_CMP): moved from enum.c so that array.c can
-	  use it.
-
-	* test/ruby/test_array.rb (test_max, test_min): tests for Array#max
-	  and Array#min.
-
-	* test/ruby/test_enum.rb (test_max, test_min): revised a bit to test
-	  Enumerable#max and #min explicitly.
-
-Thu Mar 17 21:02:42 2016  Yusuke Endoh  <mame@ruby-lang.org>
-
-	* internal.c: struct cmp_opt_data added for refactoring out a data
-	  structure for CMP_OPTIMIZABLE
-
-	* array.c (struct ary_sort_data): use struct cmp_opt_data.
-
-	* enum.c (struct min_t, max_t, min_max_t): use struct cmp_opt_data.
-
-Thu Mar 17 20:55:21 2016  Tanaka Akira  <akr@fsij.org>
-
-	* enum.c (ary_inject_op): Extracted from enum_inject.
-
-Thu Mar 17 18:39:04 2016  Tanaka Akira  <akr@fsij.org>
-
-	* enum.c (enum_inject): Implement the specialized code for sum of
-	  integers including Bignums.
-
-	* internal.h (rb_fix_plus): Declared to be usable from enum_inject.
-
-	* numeric.c (rb_fix_plus): Defined.
-
-Thu Mar 17 17:20:28 2016  Anton Davydov  <antondavydov.o@gmail.com>
-
-	* thread_sync.c: [DOC] Update documentation for Queue class
-	  description.  [Fix GH-1292]
-
-Thu Mar 17 17:14:51 2016  Dinar Valeev  <dvaleev@suse.com>
-
-	* gc.c (tick): Use __builtin_ppc_get_timebase for POWER arch.
-	  [Fix GH-1291]
-
-Thu Mar 17 11:51:48 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/securerandom.rb (gen_random): to avoid blocking on Windows.
-	  On Windows OpenSSL RAND_bytes (underlying implementation is
-	  RAND_poll in crypto/rand/rand_win.c) may be blocked at
-	  NetStatisticsGet.
-	  https://wiki.openssl.org/index.php/Random_Numbers#Windows_Issues
-	  Instead of this, use Random.raw_seed directly (whose implementation
-	  CryptGenRandom is one of the source of
-	  entropy of RAND_poll on Windows).
-	  https://wiki.openssl.org/index.php/Random_Numbers
-	  Note: CryptGenRandom function is PRNG and doesn't check its entropy,
-	  so it won't block. [Bug #12139]
-	  https://msdn.microsoft.com/ja-jp/library/windows/desktop/aa379942.aspx
-	  https://tools.ietf.org/html/rfc4086#section-7.1.3
-	  https://eprint.iacr.org/2007/419.pdf
-	  http://www.cs.huji.ac.il/~dolev/pubs/thesis/msc-thesis-leo.pdf
-
-Thu Mar 17 12:09:00 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Fixed two macro definitions.
-	* test/ruby/enc/test_case_mapping.rb: Test cases that detected
-	  the above bugs.
-
-Thu Mar 17 11:36:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/option.c (inspect_tcpi_msec): more accurate condition
-	  for TCPI msec member inspection function.
-	  [ruby-core:74388] [Bug #12185]
-
-Thu Mar 17 08:13:43 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* test/-ext-/time/test_new.rb (test_timespec_new): Time#gmtoff values
-	  are the same only when both or neither of the Time objects are in
-	  summer time (daylight-saving time).
-
-Thu Mar 17 07:17:36 2016  Eric Hodel  <drbrain@segment7.net>
-
-	* marshal.c (r_object0):  raise ArgumentError when linking to undefined
-	  object.
-
-Thu Mar 17 00:45:00 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* test/ruby/test_bignum.rb: Make sure to use Bignum values in the tests.
-
-Wed Mar 16 23:10:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* defs/keywords (alias, undef): symbol literals are allowed.
-
-	* parse.y (parse_percent): should parse symbol literals for alias
-	  and undef.  [ruby-dev:47681] [Bug #8851]
-
-Wed Mar 16 21:39:39 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* enc/trans/JIS: update Unicode's notice. [Bug #11844]
-
-Wed Mar 16 20:03:35 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* proc.c (proc_binding): proc from symbol can not make a binding.
-	  [ruby-core:74100] [Bug #12137]
-
-Wed Mar 16 18:42:45 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_mapping.rb: Fixed and activated a test for Cherokee.
-
-Wed Mar 16 17:58:56 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_mapping.rb: Fixed a logical error.
-
-Wed Mar 16 17:57:34 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_mapping.rb: Adding tests for Cherokee.
-	  One test not yet working.
-	  (with Kimihito Matsui)
-
-Wed Mar 16 15:44:05 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_mapping.rb: Adding tests for actual Unicode
-	  case mapping. Fixing some aliasing issues.
-	  (with Kimihito Matsui)
-
-Tue Mar 15 21:38:28 2016  Tanaka Akira  <akr@fsij.org>
-
-	* enum.c (enum_inject): Consider redefinition of Fixnum#+.
-	  [ruby-dev:49510] [Bug#12178] Reported by usa.
-
-Tue Mar 15 20:32:57 2016  Tanaka Akira  <akr@fsij.org>
-
-	* enum.c (enum_inject): Implement the specialized code for :+ operator
-	  for Fixnums.
-
-Tue Mar 15 20:21:01 2016  Tanaka Akira  <akr@fsij.org>
-
-	* enum.c (enum_inject): Implement the specialized code for self is an
-	  array and a symbol operator is given.
-
-Tue Mar 15 16:29:51 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Eliminating common code.
-	  (with Kimihito Matsui)
-
-Tue Mar 15 16:17:09 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Expansion of some code repetition in preparation for
-	  elimination of common code pieces.
-	  (with Kimihito Matsui)
-
-Tue Mar 15 13:49:23 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Additional macros and code to use mapping data in
-	  CaseMappingSpecials array.
-	  (with Kimihito Matsui)
-
-Tue Mar 15 13:41:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h (rb_gc_mark_global_tbl): should be private,
-	  but was accidentally exported.
-
-Tue Mar 15 12:51:06 2016  Marcus Stollsteimer  <sto.mar@web.de>
-
-	* doc/extension.ja.rdoc: Fix RDoc markup in doc/extension*.rdoc.
-	  [ci skip][Bug #12143][ruby-core:74143]
-	* doc/extension.rdoc: ditto.
-
-Tue Mar 15 09:56:41 2016  Ian Lunderskov  <ian.lunderskov@gmail.com>
-
-	* time.c: Minor typo in Time#dst? documentation.
-	  [ci skip][fix GH-1290]
-
-Tue Mar 15 04:36:41 2016  Charles Oliver Nutter  <headius@headius.com>
-
-	* test/ruby/test_rubyoptions.rb (test_disable): add tests for
-	  --disable-gems and --disable-did_you_mean.
-
-Tue Mar 15 03:35:04 2016  Eric Hodel  <drbrain@segment7.net>
-
-	* marshal.c (r_object0): Fix Marshal crash for corrupt extended object.
-
-Tue Mar 15 01:22:27 2016  Charles Oliver Nutter  <headius@headius.com>
-
-	* test/ruby/test_rubyoptions.rb: make version matching support
-	  JRuby's version output.
-
-Mon Mar 14 19:05:39 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* bignum.c (big2str_2bdigits): reduce div instruction.
-
-Mon Mar 14 18:39:53 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* include/ruby/oniguruma.h, enc/unicode.c: Adjusting flag assignments
-	  and macros to work with unified CaseMappingSpecials array.
-	  (with Kimihito Matsui)
-
-Mon Mar 14 16:53:37 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (compile_named_capture_assign): optimize named capture
-	  assignments, by replacing repeating global variable accesses
-	  with `dup`, and by returning the matched result instead of
-	  re-getting it from the MatchData.
-
-	* parse.y (reg_named_capture_assign_gen): build just assignment
-	  nodes for the optimization.
-
-Mon Mar 14 16:02:59 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* file.c (ruby_is_fd_loadable): now return -1 if loadable but
-	  may block.
-
-	* ruby.c (open_load_file): wait to read by the result of
-	  ruby_is_fd_loadable, without fstat.
-
-Mon Mar 14 13:38:38 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* numeric.c (fix2str): improve r54092 like rb_int2big().
-
-Mon Mar 14 10:02:23 2016  Eric Wong  <e@80x24.org>
-
-	* ext/openssl/ossl_ssl.c (ossl_sslctx_setup): document as MT-unsafe
-	  [ruby-core:73803] [Bug #12069]
-
-Sun Mar 13 09:43:23 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/win32.h (O_SHARE_DELETE): change to fit Fixnum
-	  limit.  [ruby-core:74285] [Bug #12171]
-
-Sun Mar 13 09:15:45 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (rb_fix2str): fix edge case, accidentally generated
-	  wrong Fixnum from LONG_MIN.
-
-Sat Mar 12 09:50:27 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (rb_f_catch): [DOC] fix malformed RDoc syntax, "+...+"
-	  cannot enclose non-identifier characters.
-	  a patch by Sebastian S in [ruby-core:74278].  [Bug#12170]
-
-Sat Mar 12 02:44:48 2016  Tanaka Akira  <akr@fsij.org>
-
-	* test/lib/test/unit.rb: describe !/REGEXP/ in the help message.
-
-Fri Mar 11 17:03:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/lib/test/unit.rb (Options#non_options): make regexp name
-	  options prefixed with "!" negative filters.
-
-	* common.mk (TEST_EXCLUDES): use negative filter to exclude memory
-	  leak tests.  -x option excludes test files, not test methods.
-
-Fri Mar 11 16:11:27 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb, casefold.h: Streamlining approach to
-	  case mapping data not available from case folding by unifying all
-	  three cases (special title, special upper, special lower).
-	* enc/unicode.c: Adjust macro names for above (macros are currently inactive).
-	  (with Kimihito Matsui)
-
-Thu Mar 10 17:34:16 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* iseq.c (prepare_iseq_build): enable coverage by coverage_enabled
-	  option, not by parse_in_eval flag in the thread context.
-
-	* iseq.h (rb_compile_option_struct): add coverage_enabled flag.
-
-	* parse.y (yycompile0): set coverage_enabled flag if coverage
-	  array is made.
-
-Thu Mar 10 15:19:54 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* node.c (dump_option): nd_compile_option is a hidden hash object,
-	  cannot call inspect on it.
-
-Thu Mar 10 09:49:54 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* test/socket/test_socket.rb (test_udp_recvmsg_truncation):
-	  AIX does not set the MSG_TRUNC flag for a message partially read
-	  by recvmsg(2) with the MSG_PEEK flag set.
-
-Wed Mar  9 16:48:45 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/driver.rb: fix my last commit (syntax error).
-
-Wed Mar  9 16:41:44 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/driver.rb: fix output messages.
-
-	* benchmark/memory_wrapper.rb: use respond_to? because
-	  member? does not work well.
-
-Wed Mar  9 16:20:25 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/driver.rb: support memory usage benchmark.
-	  use `--measure-target=[target]'.
-	  Now, we can use the following targets:
-	    * real (default): real time which returns process time in sec.
-	    * peak: peak memory usage (physical memory) in bytes.
-	    * size: last memory usage (physical memory) in bytes.
-
-	* benchmark/memory_wrapper.rb: ditto.
-
-Wed Mar  9 15:04:22 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/bm_vm3_gc_old_full.rb: add GC.start benchmark.
-
-	* benchmark/bm_vm3_gc_old_immediate.rb: ditto.
-
-	* benchmark/bm_vm3_gc_old_lazy.rb: ditto.
-
-Wed Mar  9 14:59:11 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* benchmark/driver.rb: exit benchmarking if a benchmark process
-	  receives signals.
-
-Wed Mar  9 13:22:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* test/lib/memory_status.rb: make Memory::Status independent of
-	  MiniTest::Skip.
-
-	* test/lib/test/unit/assertions.rb (assert_no_memory_leak): skip
-	  if Memory::Status is not available.
-
-Wed Mar  9 09:19:55 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* test/io/wait/test_io_wait.rb (test_wait_readwrite_timeout):
-	  select(2) in AIX returns "readable" for the write-side fd
-	  of a pipe, so it is not possible to use a pipe to test
-	  the read-write timeout of IO#wait on AIX.
-
-Wed Mar  9 03:35:22 2016  Charles Oliver Nutter  <headius@headius.com>
-
-	* test/ruby/test_require.rb (test_require_with_loaded_features_pop):
-	  Only remove PATH so threads don't accidentally double-pop.
-
-Wed Mar  9 00:29:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_method.c (rb_alias): the original name should be properly
-	  available method_added method, set the name before calling the
-	  hook.
-
-Wed Mar  9 00:07:03 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/logger.rb (Logger::LogDevice#initialize): define using
-	  keyword arguments.
-
-Tue Mar  8 23:37:07 2016  Charles Oliver Nutter  <headius@headius.com>
-
-	* test/ruby/test_array.rb: split out the test for no stack error
-	  on large input for test_permutation, test_repeated_permutation,
-	  and test_repeated_combination, and make them all timeout:30.
-
-Tue Mar  8 17:20:21 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* intern.h (rb_divmod): assume compilers `/` and `%` comply C99
-	  and reduce branching. If a compiler doesn't comply, add #ifdefs.
-
-	* intern.h (rb_div): added for Ruby's behavior.
-
-	* intern.h (rb_mod): added for Ruby's behavior.
-
-	* insns.def (opt_div): use rb_div.
-
-	* insns.def (opt_mod): use rb_mod.
-
-	* numeric.c (fixdivmod): removed.
-
-	* numeric.c (fix_divide): use rb_div.
-
-	* numeric.c (fix_mod): use rb_mod.
-
-	* numeric.c (fix_divmod): use rb_divmod.
-
-Tue Mar  8 17:53:09 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* insns.def (opt_mod): show its method name on ZeroDivisionError.
-	  [Bug #12158]
-
-Tue Mar  8 17:33:38 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_write_console): now no need to check
-	  ERROR_CALL_NOT_IMPLEMENTED because it is for old Win9X.
-
-Tue Mar  8 16:54:29 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (rb_w32_write_console): stop the VT100 emulation if the
-	  console supports it natively.
-
-Tue Mar  8 08:13:01 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* test/net/imap/test_imap.rb (test_idle_timeout): Because of the
-	  timeout specified in "imap.idle(0.2)", there is no guarantee that
-	  the server thread has done all the work before the client thread
-	  performs the assertions. It depends on the thread scheduling.
-	  Add checks to avoid false positives (on AIX, particularly).
-
-Tue Mar  8 00:42:22 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* ruby.c (warn_cr_in_shebang): meaningless check on DOSISH platforms.
-	  fixed a test failure introduced at r53998.
-
-Tue Mar  8 00:27:53 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* ext/tk/lib/tkextlib/tcllib/tablelist_tile.rb: fix method name typo.
-	  [ruby-core:72513] [Bug #11893] The patch provided by Akira Matsuda.
-
-
-Tue Mar  8 00:25:08 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* ext/tk/lib/tkextlib/tcllib/toolbar.rb: fix method name typo.
-	  [ruby-core:72511] [Bug #11891] The patch provided by Akira Matsuda.
-
-
-Tue Mar  8 00:21:58 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* ext/tk/lib/tkextlib/blt/tree.rb: fix method name typo.
-	  [ruby-core:72510] [Bug #11890] The patch provided by Akira Matsuda.
-
-
-Tue Mar  8 00:11:47 2016  CHIKANAGA Tomoyuki  <nagachika@ruby-lang.org>
-
-	* ext/tk/lib/tk/menubar.rb: fix a typo in font name. [ruby-core:72505]
-	  [Bug #11886] The patch provided by Akira Matsuda.
-
-	* ext/tk/sample/*.rb: ditto.
-
-Mon Mar  7 13:32:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* class.c (rb_define_class, rb_define_class_id_under): raise
-	  ArgumentError if super is 0, deprecated behavior which has been
-	  warned long time.
-
-Mon Mar  7 13:28:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* internal.h: move function declarations for class internals from
-	  include/ruby/intern.h.
-
-Mon Mar  7 10:58:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/win32ole/win32ole_event.c (rescue_callback): use
-	  rb_write_error_str instead of rb_write_error, to respect
-	  the encoding and prevent the message from GC.
-
-	* internal.h (rb_write_error_str): export.
-
-Mon Mar  7 01:38:41 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* test/ruby/test_process.rb (test_execopts_gid): Skip a test
-	  that is known to fail on AIX. AIX allows setgid to
-	  a supplementary group, but Ruby does not allow the "-e"
-	  option when setgid'ed, so the test does not work as intended.
-
-Sun Mar  6 22:43:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* io.c (rb_obj_display): [DOC] fix output of Array, as Array#to_s
-	  is same as Array#inspect since 1.9.
-
-Sat Mar  5 09:50:58 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* test/socket/test_addrinfo.rb (test_ipv6_address_predicates):
-	  IN6_IS_ADDR_V4COMPAT and IN6_IS_ADDR_V4MAPPED are broken
-	  on AIX, so skip related tests.
-
-Sat Mar  5 09:17:54 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* test/rinda/test_rinda.rb (test_make_socket_ipv4_multicast):
-	  The fifth argument to getsockopt(2) should be modified to
-	  indicate the actual size of the value on return,
-	  but not in AIX. This is a know bug. Skip related tests.
-	* test/rinda/test_rinda.rb (test_ring_server_ipv4_multicast):
-	  ditto.
-	* test/rinda/test_rinda.rb (test_make_socket_unicast): ditto.
-	* test/socket/test_basicsocket.rb (test_getsockopt): ditto.
-	* test/socket/test_sockopt.rb (test_bool): ditto.
-
-Sat Mar  5 07:36:27 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* test/-ext-/float/test_nextafter.rb: In AIX,
-	  nextafter(+0.0,-0.0)=+0.0, and nextafter(-0.0,+0.0)=-0.0,
-	  but they should return -0.0 and +0.0, respectively. This is
-	  a known bug in nextafter(3) on AIX, so skip related tests.
-
-Sat Mar  5 07:14:10 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* test/zlib/test_zlib.rb (test_adler32_combine, test_crc32_combine):
-	  Skip two tests on AIX because zconf.h in zlib does not correctly
-	  recognize _LARGE_FILES in AIX. The problem was already reported
-	  to zlib, and skip these tests until it is fixed.
-
-Sat Mar  5 03:07:40 2016  Rei Odaira  <Rei.Odaira@gmail.com>
-
-	* thread_pthread.c (getstack): __pi_stacksize returned by
-	  pthread_getthrds_np() is wrong on AIX. Use
-	  __pi_stackend - __pi_stackaddr instead.
-
-Fri Mar  4 19:19:42 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: use 2 bits with unsigned int for rb_objspace::flags::mode
-	  because it always returns 0 to 2 (non-negative value).
-
-Fri Mar  4 18:42:08 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: rename "enum gc_stat" to "enum gc_mode"
-	  because there is a same name (no related) function gc_stat().
-
-	  Also gc_stat_* are renamed to gc_mode_*,
-	  gc_stat_transition() to gc_mode_transition(),
-	  rb_objspace::flags::stat is renamed to rb_objspace::flags::mode.
-
-	  Change rb_objspace::flags::mode from 2 bits to 3 bits because VC++
-	  returns negative enum value with 2 bits.
-
-	* gc.c (gc_mode): add a macro to access rb_objspace::flags::mode
-	  with verification code (verification is enabled only on
-	  RGENGC_CHECK_MODE > 0).
-
-	* gc.c (gc_mode_set): same macro for setter.
-
-Fri Mar  4 09:28:18 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.6.1.
-	  Please see entries of 2.6.0 and 2.6.1 on
-	  https://github.com/rubygems/rubygems/blob/master/History.txt
-	  [fix GH-1270] Patch by @segiddins
-
-Thu Mar  3 14:09:00 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/ostruct.rb (modifiable?, new_ostruct_member!, table!):
-	  rename methods for internal use with suffixes and make private,
-	  [ruby-core:71069] [Bug #11587]
-
-Wed Mar  2 16:28:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (method_missing): call by found method entry and get
-	  rid of searching the same method entry twice.
-
-	* vm_eval.c (vm_call0_body): calling method_missing method is
-	  method_missing().
-
-Wed Mar  2 15:13:33 2016  herwinw  <herwin@quarantainenet.nl>
-
-	* lib/xmlrpc.rb: Removed broken parser named XMLScanStreamParser.
-	  It's not works with current Ruby version.
-	  [fix GH-1271][ruby-core:59588][Bug #9369]
-	* lib/xmlrpc/config.rb: ditto.
-	* lib/xmlrpc/parser.rb: ditto.
-
-Wed Mar  2 15:08:33 2016  herwinw  <herwin@quarantainenet.nl>
-
-	* lib/xmlrpc.rb: Removed broken parser named XMLTreeParser.
-	  Required gem of its parser didn't compile on newer Ruby versions.
-	  [fix GH-1271][ruby-core:59590][Bug #9370]
-	* lib/xmlrpc/config.rb: ditto.
-	* lib/xmlrpc/parser.rb: ditto.
-
-Tue Mar  1 11:25:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/fileutils.rb: use keyword arguments instead of option
-	  hashes.
-
-Mon Feb 29 16:50:20 2016  hanachin  <hanachin@gmail.com>
-
-	* array.c (rb_ary_push_m): [DOC] Remove trailing comma from
-	  Array#push example, as other Array examples doesn't put trailing
-	  comma.  [Fix GH-1279]
-
-Mon Feb 29 16:31:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* common.mk, tool/mkconfig.rb: set cross_compiling option from
-	  Makefile, but not from rbconfig.rb, which is just going to be
-	  created by this command.
-
-Sun Feb 28 23:13:49 2016  C.J. Collier  <cjcollier@linuxfoundation.org>
-
-	* configure.in: Add summary to end of configure output.
-	  [Fix GH-1275]
-
-Sun Feb 28 20:23:36 2016  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/drb/drb.rb (error_print): Add verbose failure messages and
-	  avoid infamous DRb::DRbConnError. [Feature #12101]
-
-Sun Feb 28 13:40:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (nometh_err_initialize): add private_call? parameter.
-
-	* error.c (nometh_err_private_call_p): add private_call? method,
-	  to tell if the exception raised in private form FCALL or VCALL.
-	  [Feature #12043]
-
-	* vm_eval.c (make_no_method_exception): append private_call?
-	  argument.
-
-	* vm_insnhelper.c (ci_missing_reason): copy FCALL flag.
-
-Sun Feb 28 10:19:47 2016  Ryan T. Hosford  <tad.hosford@gmail.com>
-
-	* array.c (rb_ary_and): clarify that set intersection returns the
-	  unique elements common to both arrays.
-
-	* array.c (rb_ary_or): clarify that union preserves the order from
-	  the given arrays.
-
-Sat Feb 27 17:05:29 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb, casefold.h: Reducing size of TitleCase
-	  table by eliminating duplicates.
-	  (with Kimihito Matsui)
-
-Fri Feb 26 14:40:48 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (num_step_scan_args): comparison String with Numeric
-	  should raise TypeError. it is an invalid type, but not a
-	  mismatch the number of arguments.  [ruby-core:62430] [Bug #9810]
-
-Fri Feb 26 14:39:39 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* doc/extension.rdoc, doc/extension.ja.rdoc: add editor local
-	  variables, with commenting out by :enddoc: directives which are
-	  just ignored unless code object mode.  [Bug #12111]
-
-Fri Feb 26 12:25:56 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* doc/extension.ja.rdoc: removed rendering error caused by editor specific
-	  configuration on http://docs.ruby-lang.org/en/trunk/extension_rdoc.html .
-	  [Bug #12111][ruby-core:73990]
-
-Fri Feb 26 11:21:41 2016  herwinw  <herwin@quarantainenet.nl>
-
-	* lib/xmlrpc.rb: Removed references to NQXML. It's obsoleted parser.
-	  [fix GH-1245][ruby-core:59593][Feature #9371]
-	* lib/xmlrpc/config.rb: ditto.
-	* lib/xmlrpc/parser.rb: ditto.
-
-Fri Feb 26 11:10:19 2016  Rick Salevsky  <rsalevsky@suse.com>
-
-	* lib/tmpdir.rb: Unify to coding-style for method definition.
-	  [fix GH-1252]
-
-Fri Feb 26 11:02:04 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* README.md: update markdown syntax for anchor tag.
-	  [fix GH-1265] Patch by @lukBarros
-
-Fri Feb 26 10:52:29 2016  Alex Boyd  <alex@opengroove.org>
-
-	* lib/irb.rb: avoid to needless truncation when using back_trace_limit option.
-	  [fix GH-1205][ruby-core:72773][Bug #11969]
-
-Fri Feb 26 08:11:58 2016  Aaron Patterson <tenderlove@ruby-lang.org>
-
-	* gem_prelude.rb: Reduce system calls by activating the `did_you_mean`
-	  gem before requiring the gem.  Activating the gem puts the gem on
-	  the load path, where simply requiring the file will search every gem
-	  that's installed until it can find a gem that contains the
-	  `did_you_mean` file.
-
-Thu Feb 25 19:04:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb: Adding possibility for debugging output
-	  for TitleCase table in casefold.h.
-	  (with Kimihito Matsui)
-
-Wed Feb 24 22:31:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* include/ruby/oniguruma.h: Rearranging flag assignments and making
-	  space for titlecase indices; adding additional macros to add or
-	  extract titlecase index; adding comments for better documentation.
-	* enc/unicode.c: Moving some macros to include/ruby/oniguruma.h;
-	  activating use of titlecase indices.
-	  (with Kimihito Matsui)
-
-Wed Feb 24 21:03:04 2016  Tanaka Akira  <akr@fsij.org>
-
-	* random.c (limited_rand): Add a specialized path for when the limit fits
-	  in 32 bit.
-
-Tue Feb 23 21:52:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb, casefold.h: Outputting actual titlecase
-	  data (new table, with indices from other tables).
-	* enc/unicode.c: Ignoring titlecase data indices for the moment.
-	  (with Kimihito Matsui)
-
-Tue Feb 23 15:21:14 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb, casefold.h: Reading casing data from
-	  SpecialCasing.txt.
-	  (with Kimihito Matsui)
-
-Mon Feb 22 18:33:55 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb, casefold.h: Adding flag for title-case,
-	  not yet operational.
-	  (with Kimihito Matsui)
-
-Mon Feb 22 18:17:03 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb, casefold.h: Fixed bug that avoided inclusion
-	  of compatibility characters in upper-/lower-case mappings.
-	  (with Kimihito Matsui)
-
-Sun Feb 21 13:57:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* cgi/escape/escape.c: Optimize CGI.unescape performance by C ext
-	  for ASCII-compatible encodings.  [Fix GH-1250]
-
-Sun Feb 21 13:56:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* cgi/escape/escape.c: Optimize CGI.unescapeHTML performance by C
-	  ext for ASCII-compatible encodings.  [Fix GH-1242]
-
-Sat Feb 20 15:38:16 2016  Eric Wong  <e@80x24.org>
-
-	* doc/extension.rdoc: update paths for defs/ directory
-
-Sat Feb 20 14:44:15 2016  Lucas Buchala  <lucasbuchala@gmail.com>
-
-	* vm_eval.c (rb_mod_module_eval): [DOC] Fix documentation
-	  signature for Module#module_eval.  [Fix GH-1258]
-
-Sat Feb 20 14:40:44 2016  Adam O'Connor  <northband@gmail.com>
-
-	* README.md: a few grammatical changes to the main Ruby README.md.
-	  [Fix GH-1259]
-
-Sat Feb 20 13:04:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (push_pattern, push_glob): deal with read paths as UTF-8
-	  to stat later, on Windows as well as OS X.
-	  [ruby-core:73868] [Bug #12081]
-
-Sat Feb 20 01:53:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* object.c (rb_mod_const_get): make error message at uninterned
-	  string consistent with symbols.  [ruby-dev:49498] [Bug #12089]
-
-Fri Feb 19 23:37:52 2016  Masahiro Tomita  <tommy@tmtm.org>
-
-	* lib/find.rb (Find#find): raise with the given path name if it
-	  does not exist.  [ruby-dev:49497] [Bug #12087]
-
-Fri Feb 19 12:44:57 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Activated use of case mapping data in CaseUnfold_11 array.
-	  (with Kimihito Matsui)
-
-Fri Feb 19 11:08:32 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/extmk.rb: add cygwin case, nothing excluded.
-	  [ruby-core:73806] [Bug#12071]
-
-Thu Feb 18 21:32:15 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* man/irb.1: fix output in EXAMPLES.
-
-Thu Feb 18 21:05:47 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (sym_match_m): delegate to String#match but not
-	  String#=~.  [ruby-core:72864] [Bug #11991]
-
-Thu Feb 18 14:15:38 2016  Shota Fukumori  <her@sorah.jp>
-
-	* re.c: Add MatchData#named_captures
-	  [Feature #11999] [ruby-core:72897]
-
-	* test/ruby/test_regexp.rb(test_match_data_named_captures): Test for above.
-
-	* NEWS: News about MatchData#named_captures.
-
-Wed Feb 17 21:41:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* defs/id.def (predefined): add idLASTLINE and idBACKREF for $_
-	  and $~ respectively.
-
-	* parse.y: use idLASTLINE and idBACKREF instead of rb_intern.
-
-Wed Feb 17 20:23:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_str_init): fix segfault and memory leak, consider
-	  wide char encoding terminator.
-
-Wed Feb 17 12:14:59 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* string.c (rb_str_init): introduce String.new(capacity: size)
-	  [Feature #12024]
-
-Tue Feb 16 19:10:08 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb, casefold.h: Used only first element
-	  (rather than all) of target in CaseUnfold_11 array.
-	  (with Kimihito Matsui)
-
-Tue Feb 16 18:24:38 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* numeric.c (compare_with_zero): fix variable name, rb_cmperr
-	  requires VALUEs but not an ID.
-
-Tue Feb 16 17:34:18 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* dir.c (rb_dir_s_empty_p): add Dir.empty? method, which tells the
-	  argument is the name of an empty directory.  [Feature #10121]
-
-Tue Feb 16 09:51:20 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/rbinstall.rb (without_destdir): just strip a drive letter
-	  which is prepended by with_destdir.
-	  pointed out by @DavidEGrayson.
-	  https://github.com/ruby/ruby/commit/0e5f9ae#commitcomment-16101763
-
-Tue Feb 16 04:42:13 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* insns.def (opt_plus): simply use LONG2NUM() instead of wrongly
-	  complex overflow case.
-
-	* insns.def (opt_sub): ditto.
-
-Tue Feb 16 02:49:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/rbinstall.rb (without_destdir): compare with the destdir
-	  after stripping a drive letter, on dosish platforms.
-	  pointed out by @DavidEGrayson.
-	  https://github.com/ruby/ruby/commit/d0cf23b#commitcomment-16100407
-
-Mon Feb 15 15:44:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parse_ident): allow keyword arguments just after a
-	  method where the same name local variable is defined.
-	  [ruby-core:73816] [Bug#12073]
-
-Mon Feb 15 14:43:28 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb: Added debugging option
-	  (with Kimihito Matsui)
-
-Sun Feb 14 17:31:50 2016  Lars Kanis  <lars@greiz-reinsdorf.de>
-
-	* lib/mkmf.rb (with_{cpp,c,ld}flags): copy caller strings not to
-	  be modified, in append_{cpp,c,ld}flags respectively.
-	  [Fix GH-1246]
-
-Sun Feb 14 16:18:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* eval.c (setup_exception): set the cause only if it is explicitly
-	  given or not set yet.  [Bug #12068]
-
-Sat Feb 13 21:44:58 2016  Tanaka Akira  <akr@fsij.org>
-
-	* hash.c (rb_hash_invert): [DOC] more examples.
-
-Sat Feb 13 17:30:49 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/uri/generic.rb (URI::Generic#find_proxy): support CIDR in
-	  no_proxy.  [ruby-core:73769] [Feature#12062]
-
-Sat Feb 13 17:11:58 2016  Fabian Wiesel  <fabian.wiesel@sap.com>
-
-	* lib/uri/generic.rb (find_proxy): exclude white-spaces and allow
-	  for a leading dot in the domain name in no_proxy.
-	  [ruby-core:54542] [Feature #8317]
-
-Fri Feb 12 12:20:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* error.c (name_err_initialize, nometh_err_initialize): [DOC] fix
-	  argument positions.  optional parameters except for the message
-	  are placed at the last.
-
-Fri Feb 12 11:49:49 2016  Anthony Dmitriyev  <antstorm@gmail.com>
-
-	* net/ftp.rb: add NullSocket#closed? to fix closing not opened
-	  connection.  [Fix GH-1232]
-
-Fri Feb 12 11:17:38 2016  Bogdan  <bogdanvlviv@gmail.com>
-
-	* re.c (rb_reg_initialize_m): [DOC] fix missing right bracket.
-	  [Fix GH-1243]
-
-Thu Feb 11 14:57:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (RUBY_CHECK_SIZEOF, RUBY_DEFINT): fix for types
-	  which are conditionally available depending on architectures
-	  when universal binary, e.g., __int128.
-
-Thu Feb 11 06:26:18 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (RUBY_DEFINT): use Parameter Expansion.
-
-Thu Feb 11 05:33:24 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in (int128_t): don't check HAVE_XXX (for example
-	  HAVE___INT128) because RUBY_CHECK_SIZEOF() don't define it for
-	  config.h and use of $ac_cv_sizeof___int128 alternates the check.
-	  (and don't need to define because users shouldn't know that)
-
-Wed Feb 10 12:03:41 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in (ARFLAGS): check if deterministic mode flag is
-	  effective, which is on by default on Ubuntu.
-
-Tue Feb  9 16:36:23 2016  Naotoshi Seo  <sonots@gmail.com>
-
-	* lib/logger.rb: Remove block from Logger.add as it's not needed
-	  patch provided by Daniel Lobato Garcia [fix GH-1240] [Bug #12054]
-
-Tue Feb  9 14:32:23 2016  Zachary Scott  <zzak@ruby-lang.org>
-
-	* ext/zlib/zlib.c: Document mtime header behavior with patch by @schneems
-	  Fixes [GH-1129]: https://github.com/ruby/ruby/pull/1129
-
-Tue Feb  9 13:52:49 2016  Zachary Scott  <zzak@ruby-lang.org>
-
-	* re.c: Remove deprecated kcode argument from Regexp.new and compile
-	  patch provided by Dylan Pulliam [Bug #11495]
-
-Mon Feb  8 21:26:19 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb, enc/unicode/casefold.h: Flags for
-	  upper/lower conversion added (titlecase and SpecialCasing still missing)
-	  (with Kimihito Matsui)
-
-Mon Feb  8 20:43:57 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c, enc/unicode.c: Disassociating ONIGENC_CASE_FOLD flag from
-	  ONIGENC_CASE_DOWNCASE.
-	  (with Kimihito Matsui)
-
-Mon Feb  8 13:00:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Shortened macros for enc/unicode/casefold.h to
-	  single-letter; use flags in casefold.h for logic.
-
-	* enc/unicode/case-folding.rb: Added flag for case folding.
-	  Changed parameter passing.
-
-	* enc/unicode/casefold.h: New flags added.
-	  (with Kimihito Matsui)
-
-Mon Feb  8 10:30:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ruby.c (feature_option): raise a runtime error if ambiguous
-	  feature name is given, in the future.  [Bug #12050]
-
-Mon Feb  8 09:43:57 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* common.mk: Removed enc/unicode/casefold.h from automatic build because
-	  some CI systems don't have gperf. Creation of enc/unicode/casefold.h
-	  is now possible with make unicode-up. This is intended as a temporary measure.
-
-Sun Feb  7 22:10:08 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* common.mk: Added two more precondition files for enc/unicode/casefold.h
-
-	* enc/unicode.c: Added shortening macros for enc/unicode/casefold.h
-
-	* enc/unicode/case-folding.rb: Fixed file encoding for CaseFolding.txt
-	  to ASCII-8BIT (should fix some ci errors). Clarified usage. Created
-	  class MapItem. Partially implemented class CaseMapping.
-	  (with Kimihito Matsui)
-
-Sun Feb  7 14:12:32 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb: Fixing parameter passing.
-	  (with Kimihito Matsui)
-
-Sun Feb  7 11:44:03 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode/case-folding.rb: New classes CaseMapping/CaseMappingDummy
-	  to pass as parameters; not yet implemented or used.
-	  (with Kimihito Matsui)
-
-Sun Feb  7 11:16:00 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* common.mk: using new option in recipe for enc/unicode/casefold.h
-
-	* enc/unicode/case-folding.rb: Correctly specify argument to new option.
-	  (with Kimihito Matsui)
-
-Sun Feb  7 10:43:27 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	(this commit message applies to the previous commit)
-	* common.mk: explicit recipe for enc/unicode/casefold.h
-
-	* enc/unicode/case-folding.rb: Adding -m option to prepare for using
-	  multiple data files.
-	  (with Kimihito Matsui)
-
-Sat Feb  6 22:30:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/cgi/util.rb (escapeHTML, unescapeHTML): consider
-	  ASCII-incompatible encodings.  [Fix GH-1239]
-
-Sat Feb  6 15:18:28 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_regex_casefold.rb: Added data-based testing for
-	  String#downcase :fold.
-
-	* enc/unicode.c: Fixed a range error (lowest non-ASCII character affected
-	  by case operations is U+00B5, MICRO SIGN)
-
-	* test/ruby/enc/test_case_mapping.rb: Explicit test for case folding of
-	  MICRO SIGN to Greek mu.
-	  (with Kimihito Matsui)
-
-Sat Feb  6 14:51:23 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_regex_casefold.rb: Tests for three case folding
-	  primitives (mbc_case_fold, get_case_fold_codes_by_str,
-	  apply_all_case_fold) in the various encodings. Currently only known
-	  good encodings are tested to avoid test failures. For bug hunting,
-	  start by adding more encodings with
-	  generate_test_casefold encoding
-	  (with Kimihito Matsui)
-
-Sat Feb  6 14:37:16 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c, test/ruby/enc/test_case_mapping.rb: Implemented :fold
-	  option for String#downcase by using case folding data from
-	  regular expression engine, and added a few simple tests.
-	  (with Kimihito Matsui)
-
-Fri Feb  5 20:08:59 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_case_mapping.rb: added tests for :ascii option.
-	  (with Kimihito Matsui)
-
-Fri Feb  5 12:22:20 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* insns.def (opt_mult): Use int128_t for overflow detection.
-
-	* bignum.c (rb_uint128t2big): added for opt_mult.
-
-	* bignum.c (rb_uint128t2big): added for rb_uint128t2big..
-
-	* configure.in: define int128_t, uint128_t and related MACROs.
-	  Initially introduced by r41379 but reverted by r50749.
-
-Thu Feb  4 21:05:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Activated :ascii flag for ASCII-only case conversion
-	  (with Kimihito Matsui)
-
-Thu Feb  4 17:38:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* re.c (reg_set_source): make source string frozen without
-	  copying.
-
-	* re.c (rb_reg_initialize_m): refactor initialization with
-	  encoding.
-
-Thu Feb  4 15:35:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* string.c (rb_fstring_enc_new, rb_fstring_enc_cstr): functions to
-	  make fstring with encoding.
-
-Thu Feb  4 14:42:29 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* common.mk: Added Unicode data file SpecialCasing.txt to be additionally
-	  downloaded (with Kimihito Matsui)
-
-Thu Feb  4 12:39:08 2016  joker1007  <kakyoin.hierophant@gmail.com>
-
-	* cgi/escape/escape.c: Optimize CGI.escape performance by C ext
-	  for ASCII-compatible encodings.  [Fix GH-1238]
-
-Thu Feb  4 11:53:56 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* common.mk: Introduce two variables (UNICODE_DATA_DIR and
-	  UNICODE_SRC_DATA_DIR) to eliminate repetitions.
-
-Wed Feb  3 12:13:20 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* string.c (str_new_frozen): if the given string is embeddedable
-	  but not embedded, embed a new copied string. [Bug #11946]
-
-Wed Feb  3 08:25:38 2016  boshan  <boshan@subsplash.com>
-
-	* ext/openssl/ossl_pkey.c (Init_ossl_pkey): [DOC] Fix typo
-	  "encrypted" to "decrypted".  [Fix GH-1235]
-
-Wed Feb  3 08:21:32 2016  Seiei Miyagi  <hanachin@gmail.com>
-
-	* ext/ripper/lib/ripper/lexer.rb (on_heredoc_dedent): Fix
-	  Ripper.lex error in dedenting squiggly heredoc.  heredoc tree is
-	  also an array of Elem in the outer tree.  [Fix GH-1234]
-
-Wed Feb  3 02:33:39 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* re.c (rb_reg_prepare_enc): use already compiled US-ASCII regexp
-	  if given string is ASCII only.
-	  121.2s to 113.9s on my x86_64-freebsd10.2 Intel Core i5 661
-
-Tue Feb  2 13:02:03 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* re.c: Introduce RREGEXP_PTR.
-	  patch by dbussink.
-	  partially merge https://github.com/ruby/ruby/pull/497
-
-	* include/ruby/ruby.h: ditto.
-
-	* gc.c: ditto.
-
-	* ext/strscan/strscan.c: ditto.
-
-	* parse.y: ditto.
-
-	* string.c: ditto.
-
-Tue Feb  2 09:08:27 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems/specification.rb: `coding` is effective only first
-	  line except shebang.
-
-	* lib/rubygems/package.rb, lib/rubygems/package/*: ditto.
-
-Mon Feb  1 21:41:58 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/rubygems.rb, lib/rubygems/*, test/rubygems/*: Update rubygems-2.5.2.
-	  It supports to enable frozen string literal and add `--norc` option for
-	  disable to `.gemrc` configuration.
-	  See 2.5.2 release notes for other fixes and enhancements.
-	  https://github.com/rubygems/rubygems/blob/a8aa3bac723f045c52471c7b9328310a048561e0/History.txt#L3
-
-Sun Jan 31 12:33:13 2016  Dan Kreiger  <dan@dankreiger.com>
-
-	* test/drb/ut_large.rb (multiply, avg, median): add additional
-	  math operations to DRbLarge.  [Fix GH-1086]
-
-Sun Jan 31 12:19:15 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
-
-	* test/ruby/test_file_exhaustive.rb (test_lstat): Add lacking test
-	  for File#lstat.  [Fix GH-1231]
-
-Sun Jan 31 12:15:33 2016  Prayag Verma  <prayag.verma@gmail.com>
-
-	* doc/standard_library.rdoc: fix typo  [Fix GH-1230]
-	  Spelling mistakes -
-	  outputing > outputting
-	  publich > publish
-
-Sat Jan 30 15:18:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_eval.c (rb_check_funcall_with_hook): also should call the
-	  given hook before returning Qundef when overridden respond_to?
-	  method returned false.  [ruby-core:73556] [Bug #12030]
-
-Fri Jan 29 17:40:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* win32/file.c (rb_readlink): drop garbage after the substitute
-	  name, as rb_w32_read_reparse_point returns the expected buffer
-	  size but "\??\" prefix is dropped from the result.
-
-	* win32/win32.c (w32_readlink): ditto, including NUL-terminator.
-
-Fri Jan 29 17:07:27 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* win32/win32.c (fileattr_to_unixmode, rb_w32_reparse_symlink_p): volume
-	  mount point should be treated as directory, not symlink.
-	  [ruby-core:72483] [Bug #11874]
-
-	* win32/win32.c (rb_w32_read_reparse_point): check the reparse point is
-	  a volume mount point or not.
-
-	* win32/file.c (rb_readlink): follow above change (but this pass won't
-	  be used).
-
-Fri Jan 29 16:17:07 2016  Lucas Buchala  <lucasbuchala@gmail.com>
-
-	* enum.c (enum_take_while, enum_drop_while): rename block
-	  parameter to obj, since they are generic objects.  [Fix GH-1226]
-
-Fri Jan 29 14:15:26 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/erb.rb (ERB::Compiler#detect_magic_comment): allow
-	  frozen-string-literal in comment as well as encoding.
-
-	* lib/erb.rb (ERB#def_method): insert def line just before the
-	  first non-comment and non-empty line, not to leave duplicated
-	  and stale magic comments.
-
-Fri Jan 29 11:13:33 2016  Jeremy Evans  <code@jeremyevans.net>
-
-	* lib/erb.rb (ERB#set_eoutvar): explicitly make mutable string as
-	  a buffer to make ERB work with --enable-frozen-string-literal.
-	  [ruby-core:73561] [Bug #12031]
-
-Fri Jan 29 10:44:56 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/net/http/header.rb: Warn nil variable on HTTP Header.
-	  It caused to NoMethodError. [fix GH-952][fix GH-641] Patch by @teosz
-	* test/net/http/test_httpheader.rb: Added test for nil HTTP Header.
-
-Thu Jan 28 17:31:43 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/socket.c (sock_gethostname): support unlimited size
-	  hostname.
-
-Wed Jan 27 21:03:45 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/-ext-/string/test_capacity.rb: Added missing library.
-
-Wed Jan 27 18:53:40 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Fixed bit mask in macro OnigCodePointCount
-
-Wed Jan 27 17:54:42 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Protect code point count by macro, in order to
-	  be able to use the remaining bits for flags.
-	  (with Kimihito Matsui)
-
-Wed Jan 27 16:34:35 2016  boshan  <boshan@subsplash.com>
-
-	* lib/tempfile.rb (Tempfile#initialize): [DOC] the first parameter
-	  `basename` is optional and defaulted to an empty string since
-	  [GH-523].  [Fix GH-1225]
-
-Wed Jan 27 16:25:54 2016  Koichi ITO  <koic.ito@gmail.com>
-
-	* array.c (rb_ary_dig): [DOC] fix the exception class to be raised
-	  when intermediate object does not have dig method.  TypeError
-	  will be raised now.  [Fix GH-1224]
-
-Tue Jan 26 19:36:15 2016  Aggelos Avgerinos  <evaggelos.avgerinos@gmail.com>
-
-	* array.c (permute0, rpermute0): [DOC] Substitute indexes ->
-	  indices in documentation for consistency.  [Fix GH-1222]
-
-Tue Jan 26 15:21:37 2016  Eric Wong  <e@80x24.org>
-
-	* compile.c (caller_location): use rb_fstring_cstr for "<compiled>"
-	  (it is converted to fstring anyways inside rb_iseq_new_with_opt)
-	* iseq.c (iseqw_s_compile): ditto
-	* iseq.c (rb_iseq_new_main): use rb_fstring_cstr for "<main>"
-	* vm.c (Init_VM): ditto, share with with above
-	* iseq.c (iseqw_s_compile_file): rb_fstring before rb_io_t->pathv
-	  share "<main>" with above
-	* vm.c (rb_binding_add_dynavars): fstring "<temp>" immediately
-
-Tue Jan 26 15:14:01 2016  Kazuki Yamaguchi  <k@rhe.jp>
-
-	* compile.c (iseq_peephole_optimize): don't apply tailcall
-	  optimization to send/invokesuper instructions with blockiseq.
-	  This is a follow-up to the changes in r51903; blockiseq is now
-	  the third operand of send/invokesuper instructions.
-	  [ruby-core:73413] [Bug #12018]
-
-Tue Jan 26 14:26:46 2016  Eric Wong  <e@80x24.org>
-
-	* signal.c (sig_list): use fstring for hash key
-	* test/ruby/test_signal.rb (test_signal_list_dedupe_keys): added
-
-Tue Jan 26 13:08:34 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* signal.c (rb_f_kill): should immediately deliver reserved
-	  signals SIGILL and SIGFPE, not only SIGSEGV and SIGBUS.
-
-Tue Jan 26 07:57:28 2016  Joseph Tibbertsma  <josephtibbertsma@gmail.com>
-
-	* gc.c (RVALUE_PAGE_WB_UNPROTECTED): fix a typo of argument name.
-	  [Fix GH-1221]
-
-Mon Jan 25 17:26:54 2016  Eric Wong  <e@80x24.org>
-
-	* ruby_assert.h (RUBY_ASSERT_WHEN): fix reference to macro name
-	* vm_core.h: include ruby_assert.h before using
-	  [ruby-core:73371]
-
-Mon Jan 25 15:55:30 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* symbol.c (sym_check_asciionly): more informative error message
-	  with the encoding name and the inspected content.
-	  [ruby-core:73398] [Feature #12016]
-
-Mon Jan 25 09:38:26 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/ruby/test_string.rb: added testcase for next!, succ and succ!
-	  [fix GH-1213] Patch by @K0mAtoru
-
-Mon Jan 25 09:32:25 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* lib/webrick/httpservlet/filehandler.rb: fix documentation for namespace.
-	  [fix GH-1219][ci skip] Patch by @leafac
-
-Sun Jan 24 19:34:23 2016  Eric Wong  <e@80x24.org>
-
-	* vm_insnhelper.c (vm_check_if_namespace): tiny size reduction
-
-Sun Jan 24 18:12:36 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* common.mk: Simplifying Unicode data file download logic to make
-	  it more reliable (including additional fix not in r53633) [Bug #12007]
-
-Sun Jan 24 16:54:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/io/wait/wait.c (io_wait_readwrite): [EXPERIMENTAL] allow to
-	  wait for multiple modes, readable and writable, at once.  the
-	  arguments may change in the future.  [Feature #12013]
-
-Sat Jan 23 22:30:59 2016  K0mA  <mctj1218@gmail.com>
-
-	* test/ruby/test_array.rb (test_keep_if): Add test for
-	  Array#keep_if separate from Array#select!  [Fix GH-1218]
-
-Sat Jan 23 20:54:26 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* common.mk: revert r53633. It broke rubyci and travis.
-	  https://travis-ci.org/ruby/ruby/builds/104259623
-
-Sat Jan 23 20:10:29 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* range.c (range_eqq): revert r51585 because rb_call_super() is
-	  called in range_include() and thus r51585 doesn't work when the
-	  receiver Range object consists of non linear objects such as Date
-	  objects.
-	  [ruby-core:72908] [Bug #12003]
-
-Sat Jan 23 18:37:37 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* ChangeLog: Fixing wrong time on previous commit, and adding
-	  previous commit message to svn [ci skip]
-
-Sat Jan 23 18:30:30 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* common.mk: Simplifying Unicode data file download logic to make
-	  it more reliable [Bug #12007]
-
-Sat Jan 23 16:29:42 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* tool/downloader.rb: Fixed a logical error, improved documentation
-
-Sat Jan 23 11:42:43 2016  Peter Suschlik  <ps@neopoly.de>
-
-	* README.md: Use SVG Travis badge over PNG for better quality and
-	  device support.  [Fix GH-1214] [Fix GH-1216]
-
-Sat Jan 23 11:29:16 2016  Pascal Betz  <pascal.betz@simplificator.com>
-
-	* lib/csv.rb: Update documentation of CSV header converter for
-	  r45498, [GH-575].  [Fix GH-1215]
-
-Fri Jan 22 17:36:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* vm_core.h (VM_ASSERT): use RUBY_ASSERT instead of rb_bug.
-
-	* error.c (rb_assert_failure): assertion with stack dump.
-
-	* ruby_assert.h (RUBY_ASSERT): new header for the assertion.
-
-Fri Jan 22 00:25:57 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* regparse.c (fetch_name_with_level): allow non word characters
-	  at the first character.  [Feature #11949]
-
-	* regparse.c (fetch_name): ditto.
-
-Thu Jan 21 17:34:01 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* marshal.c (r_object0): honor Marshal.load post proc
-	  value for TYPE_LINK.  by Hiroshi Nakamura <nahi@ruby-lang.org>
-	  https://github.com/ruby/ruby/pull/1204 fix GH-1204
-
-Thu Jan 21 16:37:50 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* Makefile.in (update-rubyspec): fix r53208 like r53451.
-
-Wed Jan 20 20:58:25 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
-
-	* common.mk, Makefile.in: update-config_files is only for Unix
-	  platforms.
-
-Wed Jan 20 17:13:39 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/extlibs.rb: add --cache option to change cache directory.
-
-Tue Jan 19 17:03:40 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* common.mk: Added Unicode data file CaseFolding.txt to be additionally
-	  downloaded (with Kimihito Matsui)
-
-Tue Jan 19 10:09:58 2016  Sho Hashimoto  <sho-h@ruby-lang.org>
-
-	* lib/shell.rb (Shell.debug_output_exclusive_unlock): remove
-	  because Mutex#exclusive_unlock was already deleted. [fix GH-1185]
-
-Tue Jan 19 09:38:27 2016  Nick Cox  <nick@nickcox.me>
-
-	* vm_method.c: fix grammar in respond_to? warning.
-	  [fix GH-1047]
-
-Mon Jan 18 14:37:07 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_here_document): an escaped newline is not an
-	  actual newline, and the rest part should not be dedented.
-	  [ruby-core:72855] [Bug #11989]
-
-Mon Jan 18 12:04:34 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/ruby/test_string.rb: Added extra testcase for test_rstrip_bang
-	  and test_lstrip_bang. [fix GH-1178] Patch by @Matrixbirds
-
-Mon Jan 18 11:47:27 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* string.c: fix a typo. [fix GH-1202][ci skip] Patch by @sunboshan
-
-Sun Jan 17 21:15:30 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* configure.in: improve ICC (Intel C Compiler) support.
-
-	* configure.in (CXX): The name of icc's c++ compiler is `icpc`.
-
-	* configure.in (warnings): Add `-diag-disable=2259` to suppress
-	  noisy warnings: "non-pointer conversion from "..." to "..." may
-	  lose significant bits".
-
-	* configure.in (optflags): Add `-fp-model precise` like -fno-fast-math.
-
-	* lib/mkmf.rb: icc supports -Werror=division-by-zero
-	  and -Werror=deprecated-declarations, but doesn't support
-	  -Wdivision-by-zero and -Wdeprecated-declarations.
-
-Sun Jan 17 20:40:10 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: Any kind of option is now taking the new code path for
-	  upcase/downcase/capitalize/swapcase. :lithuanian can be used for
-	  testing if no specific option is desired.
-	* test/ruby/enc/test_case_mapping.rb: Adjusted to above.
-	  (with Kimihito Matsui)
-
-Sun Jan 17 20:10:10 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Fixed a logical error and some comments.
-	* test/ruby/enc/test_case_mapping.rb: Made tests more general.
-	  (with Kimihito Matsui)
-
-Sun Jan 17 17:41:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Removed artificial expansion for Turkic,
-	  added hand-coded support for Turkic, fixed logic for swapcase.
-	* string.c: Made use of new case mapping code possible from upcase,
-	  capitalize, and swapcase (with :lithuanian as a guard).
-	* test/ruby/enc/test_case_mapping.rb: Adjusted for above.
-	  (with Kimihito Matsui)
-
-Sun Jan 17 15:30:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/option.c (sockopt_bool): relax boolean size to be one
-	  too not only sizeof(int).  Winsock getsockopt() returns a single
-	  byte as a boolean socket option.  [ruby-core:72730] [Bug #11958]
-
-Sun Jan 17 14:43:01 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
-
-	* test/ruby/test_env.rb: [Fix GH-1201]
-	  * Extract test code for ENV#keep_if from ENV#select_bang
-	  * Add a test case for ENV#select_bang,keep_if
-
-Sun Jan 17 14:42:25 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
-
-	* test/ruby/test_env.rb: [Fix GH-1201]
-	  * Extract test code for ENV#delete_if from ENV#reject_bang
-	  * Add a test case for ENV#reject_bang,delete_if
-
-Sun Jan 17 14:40:22 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* ext/socket/option.c (check_size): extract a macro to check
-	  binary data size, with a consistent message.
-
-	* ext/socket/option.c (sockopt_byte): fix error message,
-	  sizeof(int) differs from sizeof(unsigned char) in general.
-
-Sat Jan 16 21:16:21 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (xstring): reset heredoc indent after dedenting,
-	  so that following string literal would not be dedented.
-	  [ruby-core:72857] [Bug #11990]
-
-Sat Jan 16 17:24:24 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* enc/unicode.c: Artificial mapping to test buffer expansion code.
-	* string.c: Fixed buffer expansion logic.
-	* test/ruby/enc/test_case_mapping.rb: Tests for above.
-	  (with Kimihito Matsui)
-
-Sat Jan 16 16:47:14 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ext/openssl/lib/openssl/pkey.rb: Added 2048 bit DH parameter.
-	* test/openssl/test_pkey_dh.rb: ditto.
-
-Sat Jan 16 10:51:19 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* enc/unicode.c: fix implicit conversion error with clang. fixup r53548.
-	* string.c: ditto.
-
-Sat Jan 16 10:31:00 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* common.mk: test-sample was changed to test-basic.
-	  [Feature #11982][ruby-core:72823]
-	* basictest/runner.rb: ditto. rename from tool/rubytest.rb.
-	* basictest/test.rb: ditto. rename from sample/test.rb.
-	* defs/gmake.mk: picked from r53540
-	* sample/test.rb: backward compatibility for chkbuild.
-
-Sat Jan 16 10:23:23 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c, enc/unicode.c: New code path as a preparation for Unicode-wide
-	  case mapping. The code path is currently guarded by the :lithuanian
-	  option to avoid accidental problems in daily use.
-	* test/ruby/enc/test_case_mapping.rb: Test for above.
-	* string.c: function 'check_case_options': fixed logical errors
-	  (with Kimihito Matsui)
-
-Fri Jan 15 20:20:20 2016  Naohisa Goto  <ngotogenome@gmail.com>
-
-	* regint.h (PLATFORM_UNALIGNED_WORD_ACCESS): The value of
-	  UNALIGNED_WORD_ACCESS should be used to determine whether
-	  unaligned word access is allowed or not. After this commit,
-	  ./configure CPPFLAGS="-DUNALIGNED_WORD_ACCESS=0" disables
-	  unaligned word access even on platforms that support the feature.
-
-Fri Jan 15 16:12:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (string1): reset heredoc indent for each string literal
-	  so that concatenated string would not be dedented.
-	  [ruby-core:72857] [Bug #11990]
-
-Thu Jan 14 20:01:00 2016  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* lib/uri/generic.rb (URI::Generic#to_s): change encoding to
-	  UTF-8 as Ruby 2.2/ by Koichi ITO <koic.ito@gmail.com>
-	  https://github.com/ruby/ruby/pull/1188 fix GH-1188
-
-Thu Jan 14 17:36:16 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (rb_f_global_variables): add matched back references
-	  only, as well as defined? operator.
-
-Thu Jan 14 16:12:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* sprintf.c (rb_str_format): format exact number more exactly.
-
-Thu Jan 14 15:08:43 2016  Tony Arcieri  <bascule@gmail.com>
-
-	* Remove 512-bit DH group. It's affected by LogJam Attack.
-	  https://weakdh.org/
-	  [fix GH-1196][Bug #11968][ruby-core:72766]
-
-Thu Jan 14 11:44:29 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* variable.c (rb_f_global_variables): add $1..$9 only if $~ is
-	  set.  fix the condition removed at r14014.
-
-Wed Jan 13 17:21:45 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* .travis.yml: removed commented-out code.
-
-Wed Jan 13 17:14:54 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* .travis.yml: removed osx code. follow up with r53517
-
-Wed Jan 13 16:56:19 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* iseq.c (rb_iseq_mark): mark parent iseq to prevent dynamically
-	  generated iseq by eval from GC.  [ruby-core:72620] [Bug #11928]
-
-Wed Jan 13 03:42:58 2016  Eric Wong  <e@80x24.org>
-
-	* class.c (Init_class_hierarchy): resolve name for rb_cObject ASAP
-	* object.c (rb_mod_const_set): move name resolution to rb_const_set
-	* variable.c (rb_const_set): do class resolution here
-	  [ruby-core:72807] [Bug #11977]
-
-Wed Jan 13 00:37:12 2016  Satoshi Ohmori  <sachin21dev@gmail.com>
-
-	* man/ruby.1: fix double word typo.  [Fix GH-1194]
-
-Tue Jan 12 21:01:09 2016  Benoit Daloze  <eregontp@gmail.com>
-
-	* common.mk: update URL and name for the Ruby spec suite.
-
-Tue Jan 12 19:52:19 2016  sorah (Shota Fukumori)  <her@sorah.jp>
-
-	* lib/forwardable.rb: Convert given accessors to String.
-
-	  r53381 changed to accept only Symbol or String for accessors, but
-	  there are several rubygems that pass classes (e.g. Array,
-	  Hash, ...) as accessors. Prior r53381, it was accepted because Class#to_s
-	  returns its class name. After r53381 given accessors are checked
-	  with define_method, but it accepts only Symbol or String, otherwise
-	  raises TypeError.
-
-	      def_delegator Foo, :some_method
-
-	  This change is to revert unexpected incompatibility. But this behavior
-	  may change in the future.
-
-Mon Jan 12 18:41:41 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: made a variable name more grammatically correct
-
-Mon Jan 12 18:34:34 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: minor grammar fix [ci skip]
-
-Mon Jan 12 16:09:09 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* test/ruby/enc/test_casing_options.rb: Tests for option
-	  parsing/checking for upcase/downcase/capitalize/swapcase
-	  (see r53503; with Kimihito Matsui)
-
-Mon Jan 12 16:03:03 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* string.c: Added option parsing/checking for upcase/downcase/
-	  capitalize/swapcase (with Kimihito Matsui)
-
-Mon Jan 11 21:28:28 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
-
-	* include/ruby/oniguruma.h: Added flags needed for upcase/downcase
-	  Unicode addition (with Kimihito Matsui)
-
-Mon Jan 11 09:50:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in: check if the API version number is consistent with
-	  the program version number.
-
-Sun Jan 10 20:57:25 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (compile_massign_lhs): when index ends with splat,
-	  append rhs value to it like POSTARG, since VM_CALL_ARGS_SPLAT
-	  splats the last argument only.  [ruby-core:72777] [Bug #11970]
-
-Sun Jan 10 15:45:10 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/missing.h (explicit_bzero_by_memset_s): remove
-	  inline implementation by memset_s, which needs a macro before
-	  including headers and can cause problems in extension libraries
-	  by the order of the macro and headers.
-
-Sun Jan 10 13:41:36 2016  Eric Wong  <e@80x24.org>
-
-	* io.c (rb_deferr): remove long obsolete global
-
-Sun Jan 10 09:14:42 2016  Eric Wong  <e@80x24.org>
-
-	* ext/psych/lib/psych/visitors/yaml_tree.rb (visit_String):
-	  eliminate chomp
-	* lib/net/http.rb (connect): eliminate delete
-	* lib/net/http/header.rb (basic_encode): ditto
-	* lib/net/imap.rb (authenticate): eliminate gsub
-	  (self.encode_utf7): shorten delete arg
-	* lib/net/smtp.rb (base64_encode): eliminate gsub
-	* lib/open-uri.rb (OpenURI.open_http): eliminate delete
-	* lib/rss/rss.rb: ditto
-	* lib/securerandom.rb (base64): ditto
-	  (urlsafe_base64): eliminate delete!
-	* lib/webrick/httpauth/digestauth.rb (split_param_value):
-	  eliminate chop
-	* lib/webrick/httpproxy.rb (do_CONNECT): eliminate delete
-	  (setup_upstream_proxy_authentication): ditto
-	  [ruby-core:72666] [Feature #11938]
-
-Sat Jan  9 23:19:14 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
-
-	* test/ruby/test_hash.rb (test_try_convert): Add test for
-	  Hash.try_convert.  [Fix GH-1190]
-
-Sat Jan  9 23:15:25 2016  Jon Moss  <maclover7@users.noreply.github.com>
-
-	* ext/openssl/ossl.c: Add missing variables to documentation
-	  examples.  [Fix GH-1189]
-
-Sat Jan  9 18:25:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* symbol.h (is_attrset_id): ASET is an attrset ID.  fix
-	  unexpected safe call instead of an ordinary ASET.
-
-Sat Jan  9 10:44:33 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* configure.in, win32/setup.mak: extract RUBY_PROGRAM_VERSION from
-	  RUBY_VERSION in version.h instead of RUBY_API_VERSION numbers in
-	  include/ruby/version.h, and cut it into version numbers.
-
-Sat Jan  9 07:13:33 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: rename PAGE_* to HEAP_PAGE_* because PAGE_SIZE is used
-	  in Mac OS X.
-
-	* test/ruby/test_gc.rb: catch up this fix.
-
-Sat Jan  9 05:45:40 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: PAGE_BITMAP_PLANES (the number of bitmap) is 4, not 3.
-
-Sat Jan  9 05:42:57 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: rename constant names HEAP_* to PAGE_*.
-
-	  Keys of GC::INTERNAL_CONSTANTS are also renamed.
-
-	* test/ruby/test_gc.rb: catch up this fix.
-
-Fri Jan  8 22:30:06 2016  Akinori MUSHA  <knu@iDaemons.org>
-
-	* doc/regexp.rdoc: [DOC] Elaborate on the \G anchor. [ci skip]
-
-Fri Jan  8 19:49:27 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: remove heap_page::body. Instead of this field,
-	  heap_page::start field works well.
-
-Fri Jan  8 19:31:52 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: rename rb_heap_t::page_length to rb_heap_t::total_pages.
-
-	  `page_length' is not clear (we may understand with length of
-	  a page).
-
-Fri Jan  8 17:07:14 2016  Koichi Sasada  <ko1@atdot.net>
-
-	* gc.c: remove heap_page::heap. This field is only used to recognize
-	  whether a page is in a tomb or not. Instead of this field,
-	  heap_page::flags::in_tomb (1 bit field) is added.
-
-	  Also type of heap_page::(total|free|final)_slots are changed from
-	  int to short. 2B is enough for them.
-
-Fri Jan  8 09:33:59 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* iseq.c (rb_iseq_compile_with_option): move variable initialization
-	  code to avoid maybe-uninitialized warnings by gcc 4.8.
-
-Fri Jan  8 00:03:22 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* enum.c (enum_min, enum_max): do the same optimization as r53454.
-
-Thu Jan  7 22:32:21 2016  Kenta Murata  <mrkn@mrkn.jp>
-
-	* ruby.h: undef HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR_CONSTANT_P
-	  and HAVE_BUILTIN___BUILTIN_TYPES_COMPATIBLE_P on C++.
-	  [ruby-core:72736] [Bug #11962]
-
-Thu Jan  7 22:02:21 2016  Shugo Maeda  <shugo@ruby-lang.org>
-
-	* enum.c (enum_minmax): optimize object comparison in
-	  Enumerable#minmax.
-
-Thu Jan  7 14:49:12 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* thread.c (rb_thread_pending_interrupt_p): no pending interrupt
-	  before initialization.
-
-	* thread.c (thread_raise_m, rb_thread_kill): uninitialized thread
-	  cannot interrupt.  [ruby-core:72732] [Bug #11959]
-
-Thu Jan  7 11:34:14 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* include/ruby/backward.h (ruby_show_copyright_to_die): for source
-	  code backward compatibility.
-
-	* ruby.c (process_options): return Qtrue to exit the process
-	  successfully.
-
-	* version.c (ruby_show_copyright): no longer exit.
-
-Wed Jan  6 17:22:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/optparse.rb (OptionParser#order!): add `into` optional
-	  keyword argument to store the results.  [Feature #11191]
-
-Tue Jan  5 21:44:37 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* ChangeLog: fix wrong class name.
-
-Tue Jan  5 21:43:50 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
-
-	* test/ruby/test_string.rb(test_chr): added test for String#chr
-	  [fix GH-1179]
-
-Tue Jan  5 21:32:26 2016  Kuniaki IGARASHI  <igaiga@gmail.com>
-
-	* test/ruby/test_numeric.rb (test_nonzero_p): added test for Numeric#nonzero?
-	  [fix GH-1187]
-
-Tue Jan  5 11:47:23 2016  Damir Gaynetdinov  <damir.gaynetdinov@gmail.com>
-
-	* doc/marshal.rdoc: Clarify object references example, that the
-	  reference is same object.  [Fix GH-1156]
-
-Tue Jan  5 05:06:51 2016  Eric Wong  <e@80x24.org>
-
-	* ext/stringio/stringio.c (strio_binmode): implement to set encoding
-	* test/stringio/test_stringio.rb (test_binmode): new test
-	  [ruby-core:72699] [Bug #11945]
-
-Mon Jan  4 15:44:37 2016  Sho Hashimoto  <sho-h@ruby-lang.org>
-
-	* variable.c (rb_mod_deprecate_constant): [DOC] added
-	  documentation for Module#deprecate_constant. [ci skip]
-
-Mon Jan  4 15:36:38 2016  Sho Hashimoto  <sho-h@ruby-lang.org>
-
-	* thread_sync.c: [DOC] remove SizedQueue#close argument.
-	  [ci skip]
-
-Mon Jan  4 10:14:24 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
-
-	* test/coverage/test_coverage.rb: ignored test when enabled to coverage.
-	  It lead to crash with `make test-all`.
-
-Mon Jan  4 08:10:44 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* insns.def (opt_case_dispatch): Move a comment to the
-	  appropriate position.
-	  [ci skip]
-
-Sun Jan  3 23:55:13 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/rubygems/security.rb (DIGEST_ALGORITHM, KEY_ALGORITHM):
-	  should check same name as the used constants.
-	  [ruby-core:72674] [Bug #11940]
-
-Sun Jan  3 19:22:01 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* aclocal.m4: add fallback file for non-aclocal environments.
-	  [ruby-core:72683] [Bug #11942]
-
-Sun Jan  3 13:56:49 2016  Yuichiro Kaneko  <yui-knk@ruby-lang.org>
-
-	* eval_error.c (rb_print_undef): Use `rb_method_visibility_t`
-	  instead of `int`.
-	* eval_intern.h (rb_print_undef): ditto
-	* proc.c (mnew_internal): ditto
-	* vm_method.c (rb_export_method): ditto
-	  [Misc #11649] [ruby-core:71311] [fix GH-1078]
-
-Sun Jan  3 12:12:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* acinclude.m4: rename aclocal.m4, which should be generated by
-	  aclocal.  [ruby-core:72675] [Bug #11941]
-
-Sat Jan  2 21:07:55 2016  Eric Wong  <e@80x24.org>
-
-	* thread_sync.c (queue_do_pop): avoid cast with Qfalse
-	  (rb_szqueue_push): ditto, use queue_sleep wrapper
-
-Sat Jan  2 16:16:14 2016  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
-
-	* lib/erb.rb: Allow ERB subclass to add token easily.
-	  [Feature #11936]
-
-	* test/erb/test_erb.rb: ditto.
-
-Sat Jan  2 14:44:31 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (regexp): set_yylval_num sets u1, should use nd_tag
-	  instead of nd_state.  [ruby-core:72638] [Bug #11932]
-
-Sat Jan  2 02:27:22 2016  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/ostruct.rb: Fix case of frozen object with initializer.
-	  Bug revealed by RubySpec [ruby-core:72639]
-
-Fri Jan  1 22:01:52 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
-
-	* NEWS: mention CSV's liberal_parsing option.
-
-Fri Jan  1 19:38:23 2016  okkez  <okkez000@gmail.com>
-
-	* doc/NEWS-2.3.0: fix double words typo.
-	  [ci skip][fix GH-1183]
-
-Fri Jan  1 15:28:56 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (remove_unreachable_chunk): decrease count of
-	  call_info in removed instructions.  fix up r53402.
-
-Fri Jan  1 12:05:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* compile.c (remove_unreachable_chunk): remove unreferred label
-	  to optimize away unreachable chunk.
-
-Fri Jan  1 11:42:57 2016  James Edward Gray II  <james@graysoftinc.com>
-
-	* lib/csv.rb (CSV): Add a liberal_parsing option.
-	  Patch by Braden Anderson. [#11839]
-	* test/csv/test_features.rb:  test liberal_parsing
-
-Fri Jan  1 10:27:28 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* tool/mkconfig.rb (RbConfig): prefix SDKROOT to oldincludedir
-	  not includedir, the latter is outside the ruby installation.
-	  [ruby-core:72496] [Bug #11881]
-
-Fri Jan  1 08:53:02 2016  Yuki Kurihara  <co000ri@gmail.com>
-
-	* test/ruby/test_lazy_enumerator.rb (test_take_bad_arg): Add test
-	  code in case of Enumerator::Lazy#take called with negative number.
-	  [ruby-dev:49467] [Bug #11933]
-
-Fri Jan  1 05:06:20 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* parse.y (parser_here_document): update indent for each line in
-	  indented here document with single-quotes.
-	  [ruby-core:72479] [Bug #11871]
-
-Fri Jan  1 03:26:44 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
-
-	* lib/ostruct.rb (freeze): define deferred accessors before
-	  freezing to get rid of an error when just reading frozen
-	  OpenStruct.
-
-Thu Dec 31 14:36:45 2015  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
-
-	* lib/ostruct.rb: Fix new_ostruct_member to correctly avoid
-	  redefinition [#11901]
-
-Thu Dec 31 02:45:12 2015  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* test/ruby/test_module.rb (test_classpath): r53376 may change
-	  the order of m.constants.
-	  `make TESTS='-v ruby/test_class.rb ruby/test_module.rb' test-all`
-	  may fail after that.