Bump up 3.0.7v3_0_7 ruby_3_0

author: Hiroshi SHIBATA <hsbt@ruby-lang.org> 2024-04-23 19:23:26 +0900
committer: Hiroshi SHIBATA <hsbt@ruby-lang.org> 2024-04-23 19:23:26 +0900
commit: 724a0711752f35478dbccdafbb6718687d983d32 (patch)
tree: 2ae09e69549a86b92cb8cee600fa5db6d329e82f /ext/-test-/num2int
parent: 14510521720231dd9f07d949c86c9df9c52b205b (diff)
0 files changed, 0 insertions, 0 deletions
diff --git a/.appveyor.yml b/.appveyor.yml
new file mode 100644
index 0000000000..05ff204541
--- /dev/null
+++ b/.appveyor.yml
@@ -0,0 +1,134 @@
+---
+version: '{build}'
+init:
+  - git config --global user.name git
+  - git config --global user.email svn-admin@ruby-lang.org
+  - git config --global core.autocrlf false
+  - git config --global core.eol lf
+  - git config --global advice.detachedHead 0
+shallow_clone: true
+clone_depth: 10
+platform:
+  - x64
+skip_commits:
+  message: /\[DOC\]/
+  files:
+    - doc/*
+    - '**/*.md'
+    - '**/*.rdoc'
+    - '**/.document'
+    - '**/*.[1-8]'
+    - '**/*.ronn'
+environment:
+  ruby_version: "24-%Platform%"
+  matrix:
+    # Test only the oldest supported version because AppVeyor is unstable, its concurrency
+    # is limited, and compatibility issues that happen only in newer versions are rare.
+    # You may test some other stuff on GitHub Actions instead.
+    - build: vs
+      vs: 120 # Visual Studio 2013
+      ssl: OpenSSL-v111
+      # The worker image name. This is NOT the Visual Studio version we're using here.
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      GEMS_FOR_TEST: ""
+  RELINE_TEST_ENCODING: "UTF-8"
+cache:
+  - c:\Tools\vcpkg\installed\
+for:
+-
+  matrix:
+    only:
+      - build: vs
+  install:
+    - ver
+    - chcp
+    - SET BITS=%Platform:x86=32%
+    - SET BITS=%BITS:x=%
+    - SET OPENSSL_DIR=C:\%ssl%-Win%BITS%
+    - cd C:\Tools\vcpkg
+    - git pull -q
+    - .\bootstrap-vcpkg.bat
+    - ps: Start-FileDownload 'https://github.com/microsoft/vcpkg-tool/releases/download/2023-08-09/vcpkg.exe' -FileName 'C:\Tools\vcpkg\vcpkg.exe'
+    - cd %APPVEYOR_BUILD_FOLDER%
+    - vcpkg --triplet %Platform%-windows install --x-use-aria2 libffi libyaml readline zlib
+    - CALL SET vcvars=%%^VS%VS%COMNTOOLS^%%..\..\VC\vcvarsall.bat
+    - SET vcvars
+    - '"%vcvars%" %Platform:x64=amd64%'
+    - SET ruby_path=C:\Ruby%ruby_version:-x86=%
+    - SET PATH=\usr\local\bin;%ruby_path%\bin;%PATH%;C:\msys64\mingw64\bin;C:\msys64\usr\bin
+    - ruby --version
+    - 'cl'
+    - echo> Makefile srcdir=.
+    - echo>> Makefile MSC_VER=0
+    - echo>> Makefile RT=none
+    - echo>> Makefile RT_VER=0
+    - echo>> Makefile BUILTIN_ENCOBJS=nul
+    - type win32\Makefile.sub >> Makefile
+    - nmake %mflags% up VCSUP="echo Update OK"
+    - nmake %mflags% extract-extlibs
+    - del Makefile
+    - mkdir \usr\local\bin
+    - mkdir \usr\local\include
+    - mkdir \usr\local\lib
+    - for %%I in (%OPENSSL_DIR%\*.dll) do mklink /h \usr\local\bin\%%~nxI %%I
+    - for %%I in (c:\Tools\vcpkg\installed\%Platform%-windows\bin\*.dll) do (
+        if not %%~nI == readline mklink \usr\local\bin\%%~nxI %%I
+      )
+    - attrib +r /s /d
+    - mkdir %Platform%-mswin_%vs%
+  build_script:
+    - set HAVE_GIT=no
+    - cd %APPVEYOR_BUILD_FOLDER%
+    - cd %Platform%-mswin_%vs%
+    - >-
+      ..\win32\configure.bat
+      --with-opt-dir="/usr/local;c:/Tools/vcpkg/installed/%Platform%-windows"
+      --with-openssl-dir=%OPENSSL_DIR:\=/%
+    - nmake -l
+    - nmake install-nodoc
+    - \usr\bin\ruby -v -e "p :locale => Encoding.find('locale'), :filesystem => Encoding.find('filesystem')"
+    - if not "%GEMS_FOR_TEST%" == "" \usr\bin\gem install --no-document %GEMS_FOR_TEST%
+    - \usr\bin\ruby -ropenssl -e "puts 'Build    ' + OpenSSL::OPENSSL_VERSION, 'Runtime  ' + OpenSSL::OPENSSL_LIBRARY_VERSION"
+  test_script:
+    - set /a JOBS=%NUMBER_OF_PROCESSORS%
+    - nmake -l "TESTOPTS=-v -q" btest
+    - nmake -l "TESTOPTS=-v -q" test-basic
+    - >-
+      nmake -l "TESTOPTS=--timeout-scale=3.0
+      --excludes=../test/excludes/_appveyor -j%JOBS%
+      --exclude win32ole
+      --exclude test_bignum
+      --exclude test_syntax
+      --exclude test_open-uri
+      --exclude test_bundled_ca
+      " test-all
+    # separately execute tests without -j which may crash worker with -j.
+    - >-
+      nmake -l
+      "TESTOPTS=--timeout-scale=3.0 --excludes=../test/excludes/_appveyor"
+      TESTS="
+      ../test/win32ole
+      ../test/ruby/test_bignum.rb
+      ../test/ruby/test_syntax.rb
+      ../test/open-uri/test_open-uri.rb
+      ../test/rubygems/test_bundled_ca.rb
+      " test-all
+    - nmake -l test-spec MSPECOPT=-fs # not using `-j` because sometimes `mspec -j` silently dies on Windows
+notifications:
+  - provider: Webhook
+    method: POST
+    url:
+      secure: CcFlJNDJ/a6to7u3Z4Fnz6dScEPNx7hTha2GkSRlV+1U6dqmxY/7uBcLXYb9gR3jfQk6w+2o/HrjNAyXMNGU/JOka3s2WRI4VKitzM+lQ08owvJIh0R7LxrGH0J2e81U # ruby-lang slack: ruby/simpler-alerts-bot
+    body: >-
+      {{^isPullRequest}}
+        {
+          "ci": "AppVeyor CI",
+          "env": "Visual Studio 2013",
+          "url": "{{buildUrl}}",
+          "commit": "{{commitId}}",
+          "branch": "{{branch}}"
+        }
+      {{/isPullRequest}}
+    on_build_success: false
+    on_build_failure: true
+    on_build_status_changed: false
diff --git a/.document b/.document
index b6dfcdeee0..3a6b0c238c 100644
--- a/.document
+++ b/.document
@@ -15,11 +15,10 @@ array.rb
 ast.rb
 dir.rb
 gc.rb
-hash.rb
 io.rb
 kernel.rb
 marshal.rb
-rjit.rb
+mjit.rb
 numeric.rb
 nilclass.rb
 pack.rb
@@ -32,9 +31,6 @@ trace_point.rb
 warning.rb
 yjit.rb
 
-# Errno::*
-known_errors.inc
-
 # the lib/ directory (which has its own .document file)
 lib
 
@@ -52,4 +48,7 @@ COPYING.ja
 
 LEGAL
 
+# win32/README.win32 linked from README.md
+win32
+
 doc
diff --git a/.gdbinit b/.gdbinit
index 911624d8c9..34d044caf6 100644
--- a/.gdbinit
+++ b/.gdbinit
@@ -1,3 +1,5 @@
+set startup-with-shell off
+
 define hook-run
   set $color_type = 0
   set $color_highlite = 0
@@ -65,7 +67,7 @@ define rp
     printf "%sT_OBJECT%s: ", $color_type, $color_end
     print ((struct RObject *)($arg0))->basic
     if ($flags & ROBJECT_EMBED)
-      print/x *((VALUE*)((struct RObject*)($arg0))->as.ary) @ (rb_shape_get_shape($arg0)->capacity)
+      print/x *((VALUE*)((struct RObject*)($arg0))->as.ary) @ (ROBJECT_EMBED_LEN_MAX+0)
     else
       print (((struct RObject *)($arg0))->as.heap)
       if (((struct RObject*)($arg0))->as.heap.numiv) > 0
@@ -102,8 +104,8 @@ define rp
             (($rsflags & (RUBY_FL_USER2|RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6)) >> RUBY_FL_USHIFT+2)
     set print address off
     output *(char *)(($rsflags & RUBY_FL_USER1) ? \
-            ((struct RString*)$regsrc)->as.heap.ptr : \
-            ((struct RString*)$regsrc)->as.ary) @ $len
+	    ((struct RString*)$regsrc)->as.heap.ptr : \
+	    ((struct RString*)$regsrc)->as.ary) @ $len
     set print address on
     printf " len:%ld ", $len
     if $flags & RUBY_FL_USER6
@@ -124,26 +126,26 @@ define rp
       printf "%sT_ARRAY%s: len=%ld ", $color_type, $color_end, $len
       printf "(embed) "
       if ($len == 0)
-        printf "{(empty)} "
+	printf "{(empty)} "
       else
-        print/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*)($arg0))->as.heap.aux.shared_root
-        printf " "
+	printf "(shared) shared="
+	output/x ((struct RArray*)($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 ($len == 0)
-        printf "{(empty)} "
+	printf "{(empty)} "
       else
-        print/x *((VALUE*)((struct RArray*)($arg0))->as.heap.ptr) @ $len
-        printf " "
+	print/x *((VALUE*)((struct RArray*)($arg0))->as.heap.ptr) @ $len
+	printf " "
       end
     end
     print (struct RArray *)($arg0)
@@ -443,8 +445,8 @@ define output_string
           (($flags & (RUBY_FL_USER2|RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6)) >> RUBY_FL_USHIFT+2)
   if $len > 0
     output *(char *)(($flags & RUBY_FL_USER1) ? \
-            ((struct RString*)($arg0))->as.heap.ptr : \
-            ((struct RString*)($arg0))->as.ary) @ $len
+	    ((struct RString*)($arg0))->as.heap.ptr : \
+	    ((struct RString*)($arg0))->as.ary) @ $len
   else
     output ""
   end
@@ -457,8 +459,8 @@ define print_string
           (($flags & (RUBY_FL_USER2|RUBY_FL_USER3|RUBY_FL_USER4|RUBY_FL_USER5|RUBY_FL_USER6)) >> RUBY_FL_USHIFT+2)
   if $len > 0
     printf "%s", *(char *)(($flags & RUBY_FL_USER1) ? \
-            ((struct RString*)($arg0))->as.heap.ptr : \
-            ((struct RString*)($arg0))->as.ary) @ $len
+	    ((struct RString*)($arg0))->as.heap.ptr : \
+	    ((struct RString*)($arg0))->as.ary) @ $len
   end
 end
 
@@ -687,6 +689,11 @@ 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
@@ -861,22 +868,22 @@ 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
@@ -954,7 +961,7 @@ 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
@@ -1272,9 +1279,9 @@ document rb_count_objects
   Counts all objects grouped by type.
 end
 
-# Details: https://github.com/ruby/ruby/wiki/Machine-Instructions-Trace-with-GDB
+# Details: https://bugs.ruby-lang.org/projects/ruby-master/wiki/MachineInstructionsTraceWithGDB
 define trace_machine_instructions
-  set logging enabled
+  set logging on
   set height 0
   set width 0
   display/i $pc
@@ -1341,8 +1348,3 @@ define print_flags
   printf "RUBY_FL_USER17      : %s\n", ((struct RBasic*)($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
index 60721014f7..6c5eac5a0f 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -5,10 +5,6 @@
 
 # Expand tabs
 5b21e94bebed90180d8ff63dad03b8b948361089
-c5e9af9c9d890578182a21e7b71b50334cd5579e
-e63a2115f64433b21cb5dd67c5bf8b30f87ef293
-712ac99e4d0384a941c80a9f48f62943ba7d97c0
-d1474affa8e105bece209cc9d594bb0a989859e1
 
 # Enable Style/StringLiterals cop for RubyGems/Bundler
 d7ffd3fea402239b16833cc434404a7af82d44f3
@@ -25,11 +21,3 @@ f28287d34c03f472ffe90ea262bdde9affd4b965
 
 # Make benchmark indentation consistent
 fc4acf8cae82e5196186d3278d831f2438479d91
-
-# Make prism_compile.c indentation consistent
-40b2c8e5e7e6e5f83cee9276dc9c1922a69292d6
-d2c5867357ed88eccc28c2b3bd4a46e206e7ff85
-
-# Miss-and-revived commits
-a0f7de814ae5c299d6ce99bed5fb308a05d50ba0
-d4e24021d39e1f80f0055b55d91f8d5f22e15084
diff --git a/.github/actions/compilers/action.yml b/.github/actions/compilers/action.yml
deleted file mode 100644
index aa23365e49..0000000000
--- a/.github/actions/compilers/action.yml
+++ /dev/null
@@ -1,101 +0,0 @@
-name: Compiles ruby in a container
-description: >-
-  Makes ruby using a dedicated container
-
-inputs:
-  tag:
-    required: false
-    default: clang-18
-    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`
-
-  mspecopt:
-    required: false
-    default: ''
-    description: >-
-      Additional 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:${{ inputs.tag }}'
-
-    - name: compile
-      shell: bash
-      run: >-
-        docker run
-        --rm
-        --user=root
-        --volume '${{ 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='${{ inputs.with_gcc || inputs.tag }}'
-        --env INPUT_CFLAGS='${{ inputs.CFLAGS }}'
-        --env INPUT_CXXFLAGS='${{ inputs.CXXFLAGS }}'
-        --env INPUT_OPTFLAGS='${{ inputs.OPTFLAGS }}'
-        --env INPUT_CPPFLAGS='${{ inputs.cppflags }}'
-        --env INPUT_APPEND_CONFIGURE='${{ inputs.append_configure }}'
-        --env INPUT_CHECK='${{ inputs.check }}'
-        --env INPUT_MSPECOPT='${{ inputs.mspecopt }}'
-        --env INPUT_ENABLE_SHARED='${{ inputs.enable_shared }}'
-        --env INPUT_STATIC_EXTS='${{ inputs.static_exts }}'
-        'ghcr.io/ruby/ruby-ci-image:${{ inputs.tag }}'
diff --git a/.github/actions/compilers/entrypoint.sh b/.github/actions/compilers/entrypoint.sh
deleted file mode 100755
index 198ac0e174..0000000000
--- a/.github/actions/compilers/entrypoint.sh
+++ /dev/null
@@ -1,96 +0,0 @@
-#! /bin/bash
-
-# Copyright (c) 2024 Ruby developers.  All rights reserved.
-#
-# This file is  a part of the programming language  Ruby.  Permission is hereby
-# granted, to  either redistribute and/or  modify this file, provided  that the
-# conditions  mentioned in  the file  COPYING are  met.  Consult  the file  for
-# details.
-
-grouped()
-{
-    echo "::group::${@}"
-    "${@}"
-    echo "::endgroup::"
-}
-
-set -e
-set -u
-set -o pipefail
-
-srcdir="/github/workspace/src"
-builddir="$(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 + $(nproc --all)))"
-
-case "x${INPUT_ENABLE_SHARED}" in
-x | xno | xfalse )
-    enable_shared='--disable-shared'
-    ;;
-*)
-    enable_shared='--enable-shared'
-    ;;
-esac
-
-pushd ${builddir}
-
-grouped ${srcdir}/configure        \
-    -C                             \
-    --with-gcc="${INPUT_WITH_GCC}" \
-    --enable-debug-env             \
-    --disable-install-doc          \
-    --with-ext=-test-/cxxanyargs,+ \
-    ${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
-
-pushd ${builddir}
-
-case "${INPUT_APPEND_CONFIGURE}" in
-*--with-shared-gc*)
-    export RUBY_GC_LIBRARY='librubygc.default.so'
-    mkdir -p /home/runner/shared-gc
-    grouped make shared-gc SHARED_GC=default
-    ;;
-esac
-
-grouped make showflags
-grouped make all
-grouped make test
-
-[[ -z "${INPUT_CHECK}" ]] && exit 0
-
-if [ "$INPUT_CHECK" = "true" ]; then
-  tests="ruby -ext-"
-else
-  tests="$INPUT_CHECK"
-fi
-
-grouped make install
-grouped make test-tool
-grouped make test-all TESTS="-- $tests"
-grouped env CHECK_LEAKS=true make test-spec MSPECOPT="$INPUT_MSPECOPT"
diff --git a/.github/actions/launchable/setup/action.yml b/.github/actions/launchable/setup/action.yml
deleted file mode 100644
index 4b469ccd64..0000000000
--- a/.github/actions/launchable/setup/action.yml
+++ /dev/null
@@ -1,165 +0,0 @@
-name: Set up Launchable
-description: >-
-  Install the required dependencies and execute the necessary Launchable commands for test recording
-
-inputs:
-  report-path:
-    default: launchable_reports.json
-    required: true
-    description: The file path of the test report for uploading to Launchable
-
-  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 retrives the commit information
-      from the directory.
-
-  launchable-workspace:
-    required: true
-    default: ${{ github.event.repository.name }}
-    description: >-
-      A workspace name in Launchable
-
-  test-task:
-    required: true
-    default: ${{ matrix.test_task }}
-    description: >-
-      A test task that determine which tests are executed.
-      This value is used in the Launchable flavor.
-
-runs:
-  using: composite
-
-  steps:
-    - name: Enable Launchable conditionally
-      id: enable-launchable
-      run: echo "enable-launchable=true" >> $GITHUB_OUTPUT
-      shell: bash
-      if: >-
-        ${{
-        (github.repository == 'ruby/ruby' ||
-        (github.repository != 'ruby/ruby' && env.LAUNCHABLE_TOKEN)) &&
-        (inputs.test-task == 'check' ||
-        inputs.test-task == 'test-all' ||
-        inputs.test-task == 'test')
-        }}
-
-    # Launchable CLI requires Python and Java.
-    # https://www.launchableinc.com/docs/resources/cli-reference/
-    - name: Set up Python
-      uses: actions/setup-python@871daa956ca9ea99f3c3e30acb424b7960676734 # v5.0.0
-      with:
-        python-version: "3.x"
-      if: steps.enable-launchable.outputs.enable-launchable
-
-    - name: Set up Java
-      uses: actions/setup-java@7a445ee88d4e23b52c33fdc7601e40278616c7f8 # v4.0.0
-      with:
-        distribution: 'temurin'
-        java-version: '17'
-      if: steps.enable-launchable.outputs.enable-launchable
-
-    - name: Set environment variables for Launchable
-      shell: bash
-      run: |
-        : # GITHUB_PULL_REQUEST_URL are used for commenting test reports in Launchable Github App.
-        : # https://github.com/launchableinc/cli/blob/v1.80.1/launchable/utils/link.py#L42
-        echo "GITHUB_PULL_REQUEST_URL=${{ github.event.pull_request.html_url }}" >> $GITHUB_ENV
-        : # The following envs are necessary in Launchable tokenless authentication.
-        : # https://github.com/launchableinc/cli/blob/v1.80.1/launchable/utils/authentication.py#L20
-        echo "LAUNCHABLE_ORGANIZATION=${{ github.repository_owner }}" >> $GITHUB_ENV
-        echo "LAUNCHABLE_WORKSPACE=${{ inputs.launchable-workspace }}" >> $GITHUB_ENV
-        : # https://github.com/launchableinc/cli/blob/v1.80.1/launchable/utils/authentication.py#L71
-        echo "GITHUB_PR_HEAD_SHA=${{ github.event.pull_request.head.sha || github.sha }}" >> $GITHUB_ENV
-        echo "LAUNCHABLE_TOKEN=${{ inputs.launchable-token }}" >> $GITHUB_ENV
-      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
-      if: steps.enable-launchable.outputs.enable-launchable && startsWith(inputs.os, 'macos')
-
-    - name: Set up Launchable
-      shell: bash
-      working-directory: ${{ inputs.srcdir }}
-      run: |
-        set -x
-        pip install --user launchable
-        launchable verify || true
-        : # The build name cannot include a slash, so we replace the string here.
-        github_ref="${{ 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.
-        : #
-        : # FIXME: Need to fix `WARNING: Failed to process a change to a file`.
-        : # https://github.com/launchableinc/cli/issues/786
-        launchable record build --name ${github_ref}_${GITHUB_PR_HEAD_SHA}
-        echo "TESTS=${TESTS} --launchable-test-reports=${{ inputs.report-path }}" >> $GITHUB_ENV
-      if: steps.enable-launchable.outputs.enable-launchable
-
-    - name: Variables to report Launchable
-      id: variables
-      shell: bash
-      run: |
-        set -x
-        : # flavor
-        test_opts="${{ inputs.test-opts }}"
-        test_opts="${test_opts// /}"
-        test_opts="${test_opts//=/:}"
-        echo test-opts="$test_opts" >> $GITHUB_OUTPUT
-        : # report-path from srcdir
-        if [ "${srcdir}" = "${{ github.workspace }}" ]; then
-          dir=
-        else
-          # srcdir must be equal to or under workspace
-          dir=$(echo ${srcdir:+${srcdir}/} | sed 's:[^/][^/]*/:../:g')
-        fi
-        report_path="${dir}${builddir:+${builddir}/}${report_path}"
-        echo report-path="${report_path}" >> $GITHUB_OUTPUT
-      if: steps.enable-launchable.outputs.enable-launchable
-      env:
-        srcdir: ${{ inputs.srcdir }}
-        builddir: ${{ inputs.builddir }}
-        report_path: ${{ inputs.report-path }}
-
-    - name: Record test results in Launchable
-      uses: gacts/run-and-post-run@674528335da98a7afc80915ff2b4b860a0b3553a # v1.4.0
-      with:
-        shell: bash
-        working-directory: ${{ inputs.srcdir }}
-        post: |
-          : # record
-          launchable record tests --flavor os=${{ inputs.os }} --flavor test_task=${{ inputs.test-task }} --flavor test_opts=${test_opts} raw ${report_path}
-          rm -f ${report_path}
-      if: ${{ always() && steps.enable-launchable.outputs.enable-launchable }}
-      env:
-        test_opts: ${{ steps.variables.outputs.test-opts }}
-        report_path: ${{ steps.variables.outputs.report-path }}
diff --git a/.github/actions/setup/directories/action.yml b/.github/actions/setup/directories/action.yml
deleted file mode 100644
index d54c0f93f8..0000000000
--- a/.github/actions/setup/directories/action.yml
+++ /dev/null
@@ -1,176 +0,0 @@
-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.
-
-  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 ${{ inputs.srcdir }}
-        mkdir -p ${{ inputs.builddir }}
-
-    # Did you know that actions/checkout works without git(1)?  We are
-    # checking that here.
-    - id: which
-      shell: bash
-      run: |
-        echo "git=`command -v git`" >> "$GITHUB_OUTPUT"
-        echo "sudo=`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@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-      with:
-        path: ${{ inputs.srcdir }}
-        fetch-depth: ${{ inputs.fetch-depth }}
-
-    - uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
-      with:
-        path: ${{ inputs.srcdir }}/.downloaded-cache
-        key: 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))" >> $GITHUB_ENV
-
-    - if: runner.os == 'Linux'
-      shell: bash
-      run: echo "GNUMAKEFLAGS=-sj$((1 + $(nproc --all)))" >> "$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"
-
-    - if: inputs.makeup
-      shell: bash
-      working-directory: ${{ inputs.srcdir }}
-      run: |
-        touch config.status
-        touch .rbconfig.time
-        sed -f tool/prereq.status template/Makefile.in > Makefile
-        sed -f tool/prereq.status template/GNUmakefile.in > GNUmakefile
-        make up
-
-    # Cleanup, runs even on failure
-    - if: always() && inputs.makeup
-      shell: bash
-      working-directory: ${{ inputs.srcdir }}
-      run: rm -f config.status Makefile rbconfig.rb .rbconfig.time
-
-    - if: steps.which.outputs.sudo
-      shell: bash
-      run: |
-        sudo chmod -R go-w /usr/share
-        chmod -v go-w $HOME $HOME/.config || :
-        SAVE_IFS="$IFS" IFS=:; set $PATH; dirs=() IFS="$SAVE_IFS"
-        for d do [ ! -d "$d" ] || dirs+=("$d"); done
-        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 ${{ inputs.builddir }} && rm $*" >> $GITHUB_OUTPUT
-
-    - if: inputs.clean == 'true'
-      shell: bash
-      id: clean
-      run: |
-        echo distclean='make -C ${{ inputs.builddir }} distclean' >> $GITHUB_OUTPUT
-        echo remained-files='find ${{ inputs.builddir }} -ls' >> $GITHUB_OUTPUT
-        [ "${{ inputs.builddir }}" = "${{ inputs.srcdir }}" ] ||
-        echo final='rmdir ${{ inputs.builddir }}' >> $GITHUB_OUTPUT
-
-    - name: clean
-      uses: gacts/run-and-post-run@4683764dd706df847f57b9bed39d08164bcd2690 # v1.4.1
-      with:
-        working-directory:
-        post: |
-          ${{ steps.dummy-files.outputs.clean }}
-          ${{ steps.clean.outputs.distclean }}
-          ${{ steps.clean.outputs.remained-files }}
-          ${{ steps.clean.outputs.final }}
diff --git a/.github/actions/setup/macos/action.yml b/.github/actions/setup/macos/action.yml
deleted file mode 100644
index 24ba48139a..0000000000
--- a/.github/actions/setup/macos/action.yml
+++ /dev/null
@@ -1,28 +0,0 @@
-name: Setup macOS environment
-description: >-
-  Installs necessary packages via Homebrew.
-
-inputs: {} # nothing?
-
-outputs: {} # nothing?
-
-runs:
-  using: composite
-
-  steps:
-    - name: brew
-      shell: bash
-      run: |
-        brew install --quiet gmp libffi openssl@3 zlib autoconf automake libtool
-
-    - name: Set ENV
-      shell: bash
-      run: |
-        for lib in gmp; do
-          ruby_configure_args="${ruby_configure_args:+$ruby_configure_args }--with-${lib%@*}-dir=$(brew --prefix $lib)"
-        done
-        for lib in openssl@3; do
-          CONFIGURE_ARGS="${CONFIGURE_ARGS:+$CONFIGURE_ARGS }--with-${lib%@*}-dir=$(brew --prefix $lib)"
-        done
-        echo ruby_configure_args="${ruby_configure_args}" >> $GITHUB_ENV
-        echo CONFIGURE_ARGS="${CONFIGURE_ARGS}" >> $GITHUB_ENV
diff --git a/.github/actions/setup/ubuntu/action.yml b/.github/actions/setup/ubuntu/action.yml
deleted file mode 100644
index a9e5b41951..0000000000
--- a/.github/actions/setup/ubuntu/action.yml
+++ /dev/null
@@ -1,53 +0,0 @@
-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: ${{ steps.uname.outputs.uname }}
-    description: >-
-      Actual architecture.  This could be different from the one
-      passed to the `inputs.arch`.  For instance giving `i386` to this
-      action yields `i686`.
-
-runs:
-  using: composite
-
-  steps:
-    - name: set SETARCH
-      shell: bash
-      run: echo "SETARCH=${setarch}" >> "$GITHUB_ENV"
-      env:
-        setarch: ${{ inputs.arch && format('setarch {0} --', inputs.arch) }}
-
-    - id: uname
-      name: uname
-      shell: bash
-      run: |
-        echo uname=`${SETARCH} uname -m` >> "$GITHUB_OUTPUT"
-        echo dpkg=`${SETARCH} uname -m | sed s/686/386/` >> "$GITHUB_OUTPUT"
-
-    - name: apt-get
-      shell: bash
-      env:
-        arch: ${{ inputs.arch && format(':{0}', steps.uname.outputs.dpkg) || '' }}
-      run: |
-        set -x
-        ${arch:+sudo dpkg --add-architecture ${arch#:}}
-        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${arch} || :
diff --git a/.github/actions/slack/action.yml b/.github/actions/slack/action.yml
deleted file mode 100644
index f0481f5bc2..0000000000
--- a/.github/actions/slack/action.yml
+++ /dev/null
@@ -1,39 +0,0 @@
-name: Post a message to slack
-description: >-
-  We have our ruby/action-slack webhook.  However its arguments are
-  bit verbose to be listed in every workflow files.  Better merge them
-  into one.
-
-inputs:
-  SLACK_WEBHOOK_URL:
-    required: true
-    description: >-
-      The URL to post the payload.  This is an input because it tends
-      to be stored in a secrets valut and a composite action cannot
-      look into one.
-
-  label:
-    required: false
-    description: >-
-      Human-readable description of the run, something like "DEBUG=1".
-      This need not be unique among runs.
-
-outputs: {} # Nothing?
-
-runs:
-  using: composite
-
-  steps:
-    - uses: ruby/action-slack@54175162371f1f7c8eb94d7c8644ee2479fcd375 # v3.2.2
-      with:
-        payload: |
-          {
-            "ci": "GitHub Actions",
-            "env": "${{ 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 }}"
-          }
-      env:
-        SLACK_WEBHOOK_URL: ${{ inputs.SLACK_WEBHOOK_URL }}
-      if: ${{github.event_name == 'push' && startsWith(github.repository, 'ruby/')}}
diff --git a/.github/auto_request_review.yml b/.github/auto_request_review.yml
deleted file mode 100644
index 8726df577d..0000000000
--- a/.github/auto_request_review.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-files:
-  'yjit*': [team:yjit]
-  'yjit/**/*': [team:yjit]
-  'yjit/src/cruby_bindings.inc.rs': []
-  'doc/yjit/*': [team:yjit]
-  'bootstraptest/test_yjit*': [team:yjit]
-  'test/ruby/test_yjit*': [team:yjit]
-options:
-  ignore_draft: true
-  # This currently doesn't work as intended. We want to skip reviews when only
-  # cruby_bingings.inc.rs is modified, but this skips reviews even when other
-  # yjit files are modified as well. To be enabled after fixing the behavior.
-  #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..91f82b842b
--- /dev/null
+++ b/.github/codeql/codeql-config.yml
@@ -0,0 +1,3 @@
+name: "CodeQL config for the Ruby language"
+
+languages: cpp
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 426893be2a..bc63aca35b 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -3,16 +3,4 @@ updates:
   - package-ecosystem: 'github-actions'
     directory: '/'
     schedule:
-      interval: 'daily'
-  - package-ecosystem: 'github-actions'
-    directory: '/.github/actions/slack'
-    schedule:
-      interval: 'daily'
-  - package-ecosystem: 'github-actions'
-    directory: '/.github/actions/setup/directories'
-    schedule:
-      interval: 'daily'
-  - package-ecosystem: 'cargo'
-    directory: '/yjit'
-    schedule:
-      interval: 'daily'
+      interval: 'monthly'
diff --git a/.github/workflows/annocheck.yml b/.github/workflows/annocheck.yml
deleted file mode 100644
index c9fefbb022..0000000000
--- a/.github/workflows/annocheck.yml
+++ /dev/null
@@ -1,112 +0,0 @@
-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.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && 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@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with:
-          sparse-checkout-cone-mode: false
-          sparse-checkout: /.github
-
-      - uses: ./.github/actions/setup/directories
-        with:
-          srcdir: src
-          builddir: build
-          makeup: true
-
-      - uses: ruby/setup-ruby@a6e6f86333f0a2523ece813039b8b4be04560854 # v1.190.0
-        with:
-          ruby-version: '3.0'
-          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
deleted file mode 100644
index ca27244b46..0000000000
--- a/.github/workflows/auto_request_review.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-name: Auto Request Review
-on:
-  pull_request_target:
-    types: [opened, ready_for_review, reopened]
-
-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@e89da1a8cd7c8c16d9de9c6e763290b6b0e3d424 # v0.13.0
-        with:
-          # scope: public_repo
-          token: ${{ secrets.MATZBOT_GITHUB_TOKEN }}
diff --git a/.github/workflows/baseruby.yml b/.github/workflows/baseruby.yml
index 3894c85d97..ebaafe3bf0 100644
--- a/.github/workflows/baseruby.yml
+++ b/.github/workflows/baseruby.yml
@@ -4,20 +4,24 @@ on:
   push:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/man'
       - '**.md'
       - '**.rdoc'
       - '**/.document'
-      - '.*.yml'
   pull_request:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/man'
       - '**.md'
       - '**.rdoc'
       - '**/.document'
-      - '.*.yml'
   merge_group:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
 
 concurrency:
   group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
@@ -29,49 +33,48 @@ permissions:
 jobs:
   baseruby:
     name: BASERUBY
-
-    runs-on: ubuntu-20.04
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
+    runs-on: ubuntu-22.04
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     strategy:
       matrix:
         ruby:
+          - ruby-2.2
+#         - ruby-2.3
+#         - ruby-2.4
+#         - ruby-2.5
+#         - ruby-2.6
+#         - ruby-2.7
           - ruby-3.0
           - ruby-3.1
-          - ruby-3.2
-          - ruby-3.3
 
     steps:
-      - uses: ruby/setup-ruby@a6e6f86333f0a2523ece813039b8b4be04560854 # v1.190.0
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+        with:
+          path: .downloaded-cache
+          key: downloaded-cache
+      - uses: ruby/setup-ruby@13e7a03dc3ac6c3798f4570bfead2aed4d96abfb # v1.244.0
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler: none
-
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-
-      - uses: ./.github/actions/setup/ubuntu
-
-      - uses: ./.github/actions/setup/directories
-        with:
-          makeup: true
-
+      - run: echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
+      - run: sudo apt-get install build-essential autoconf bison libyaml-dev
+      - run: ./autogen.sh
       - run: ./configure --disable-install-doc
-
+      - run: make common-srcs
+      - run: make incs
       - run: make all
-
       - run: make test
-
-      - uses: ./.github/actions/slack
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
         with:
-          label: ${{ matrix.ruby }}
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ github.workflow }} / BASERUBY @ ${{ matrix.ruby }}",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
-        if: ${{ failure() }}
+        if: ${{ failure() && github.event_name == 'push' }}
diff --git a/.github/workflows/bundled_gems.yml b/.github/workflows/bundled_gems.yml
index 7d452ea876..070c0fa1dd 100644
--- a/.github/workflows/bundled_gems.yml
+++ b/.github/workflows/bundled_gems.yml
@@ -2,48 +2,54 @@ name: bundled_gems
 
 on:
   push:
-    branches: ['master']
+    branches: [ "master" ]
     paths:
       - '.github/workflows/bundled_gems.yml'
       - 'gems/bundled_gems'
   pull_request:
-    branches: ['master']
+    branches: [ "master" ]
     paths:
       - '.github/workflows/bundled_gems.yml'
       - 'gems/bundled_gems'
   merge_group:
+    branches: [ "master" ]
+    paths:
+      - '.github/workflows/bundled_gems.yml'
+      - 'gems/bundled_gems'
   schedule:
     - cron: '45 6 * * *'
   workflow_dispatch:
 
-permissions: # added using https://github.com/step-security/secure-workflows
+permissions:  # added using https://github.com/step-security/secure-workflows
   contents: read
 
 jobs:
   update:
     permissions:
-      contents: write # for Git to git push
-
+      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@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with:
-          token: ${{ (github.repository == 'ruby/ruby' && !startsWith(github.event_name, 'pull')) && secrets.MATZBOT_GITHUB_TOKEN || secrets.GITHUB_TOKEN }}
-
-      - uses: ./.github/actions/setup/directories
-        with:
-          # Skip overwriting MATZBOT_GITHUB_TOKEN
-          checkout: '' # false (ref: https://github.com/actions/runner/issues/2238)
+      - name: git config
+        run: |
+          git config --global advice.detachedHead 0
+          git config --global init.defaultBranch garbage
 
       - name: Set ENV
         run: |
+          echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
           echo "TODAY=$(date +%F)" >> $GITHUB_ENV
 
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+        with:
+          path: .downloaded-cache
+          key: downloaded-cache-${{ github.sha }}
+          restore-keys: |
+            downloaded-cache
+
       - name: Download previous gems list
         run: |
           data=bundled_gems.json
@@ -52,84 +58,109 @@ jobs:
           curl -O -R -z ./$data https://stdgems.org/$data
 
       - name: Update bundled gems list
-        id: bundled_gems
-        run: |
-          ruby -i~ tool/update-bundled_gems.rb gems/bundled_gems >> $GITHUB_OUTPUT
-
-      - name: Update spec/bundler/support/builders.rb
         run: |
-          #!ruby
-          rake_version = File.read("gems/bundled_gems")[/^rake\s+(\S+)/, 1]
-          print ARGF.read.sub(/^ *def rake_version\s*\K".*?"/) {rake_version.dump}
-        shell: ruby -i~ {0} spec/bundler/support/builders.rb
+          ruby -i~ tool/update-bundled_gems.rb gems/bundled_gems
 
       - name: Maintain updated gems list in NEWS
         run: |
-          ruby tool/update-NEWS-gemlist.rb bundled
+          #!ruby
+          require 'json'
+          news = File.read("NEWS.md")
+          prev = news[/since the \*+(\d+\.\d+\.\d+)\*+/, 1]
+          prevs = [prev, prev.sub(/\.\d+\z/, '')]
+          %W[bundled].each do |type|
+            last = JSON.parse(File.read("#{type}_gems.json"))['gems'].filter_map do |g|
+              v = g['versions'].values_at(*prevs).compact.first
+              g = g['gem']
+              g = 'RubyGems' if g == 'rubygems'
+              [g, v] if v
+            end.to_h
+            changed = File.foreach("gems/#{type}_gems").filter_map do |l|
+              next if l.start_with?("#")
+              g, v = l.split(" ", 3)
+              [g, v] unless last[g] == v
+            end
+            changed, added = changed.partition {|g, _| last[g]}
+            news.sub!(/^\*( +)The following #{type} gems? are updated\.\n+\K(?: \1\*( +).*\n)*/) do
+              mark = "#{$1} *#{$2}"
+              changed.map {|g, v|"#{mark}#{g} #{v}\n"}.join("")
+            end or next
+            news.sub!(/^\*( +)The following default gems are now bundled gems\.\n+\K(?: \1\*( +).*\n)*/) do
+              mark = "#{$1} *#{$2}"
+              added.map {|g, v|"#{mark}#{g} #{v}\n"}.join("")
+            end or next unless added.empty?
+            File.write("NEWS.md", news)
+          end
+        shell: ruby {0}
 
       - 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
-          git add -- spec/bundler/support/builders.rb
-          echo news=$news >> $GITHUB_OUTPUT
-          echo gems=$gems >> $GITHUB_OUTPUT
-          echo update=${news:-$gems} >> $GITHUB_OUTPUT
+          git add -- NEWS.md
+          git diff --no-ext-diff --ignore-submodules --quiet -- gems/bundled_gems
+        continue-on-error: true
 
       - name: Install libraries
-        uses: ./.github/actions/setup/ubuntu
-        if: ${{ steps.diff.outputs.gems }}
+        run: |
+          set -x
+          sudo apt-get update -q || :
+          sudo apt-get install --no-install-recommends -q -y build-essential libssl-dev libyaml-dev libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev bison autoconf ruby
+        if: ${{ steps.diff.outcome == 'failure' }}
 
       - name: Build
         run: |
           ./autogen.sh
           ./configure -C --disable-install-doc
           make
-        if: ${{ steps.diff.outputs.gems }}
+        if: ${{ steps.diff.outcome == 'failure' }}
 
       - name: Prepare bundled gems
         run: |
           make -s prepare-gems
-        if: ${{ steps.diff.outputs.gems }}
+        if: ${{ steps.diff.outcome == 'failure' }}
 
       - name: Test bundled gems
         run: |
           make -s test-bundled-gems
+          git add -- gems/bundled_gems
         timeout-minutes: 30
         env:
-          RUBY_TESTOPTS: '-q --tty=no'
-          TEST_BUNDLED_GEMS_ALLOW_FAILURES: 'typeprof'
-        if: ${{ steps.diff.outputs.gems }}
+          RUBY_TESTOPTS: "-q --tty=no"
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ""
+        if: ${{ steps.diff.outcome == 'failure' }}
+
+      - name: Show diffs
+        id: show
+        run: |
+          git diff --cached --color --no-ext-diff --ignore-submodules --exit-code --
+        continue-on-error: true
 
       - name: Commit
         run: |
           git pull --ff-only origin ${GITHUB_REF#refs/heads/}
-          message="Update bundled gems list"
-          if [ -z "${gems}" ]; then
-            git commit --message="${message} at ${GITHUB_SHA:0:30} [ci skip]"
+          message="Update bundled gems list at "
+          if [ ${{ steps.diff.outcome }} = success ]; then
+            git commit --message="${message}${GITHUB_SHA:0:30} [ci skip]"
           else
-            git commit --message="${message} as of ${TODAY}"
+            git commit --message="${message}${TODAY}"
           fi
           git push origin ${GITHUB_REF#refs/heads/}
         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: >-
-          ${{
-          github.repository == 'ruby/ruby' &&
-          !startsWith(github.event_name, 'pull') &&
-          steps.diff.outputs.update
-          }}
-
-      - uses: ./.github/actions/slack
+        if: ${{ github.repository == 'ruby/ruby' && !startsWith(github.event_name, 'pull') && steps.show.outcome == 'failure' }}
+
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
         with:
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ github.workflow }} / update",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
-        if: ${{ failure() }}
+        if: ${{ failure() && github.event_name == 'push' }}
diff --git a/.github/workflows/check_dependencies.yml b/.github/workflows/check_dependencies.yml
index b416b36597..79b2916feb 100644
--- a/.github/workflows/check_dependencies.yml
+++ b/.github/workflows/check_dependencies.yml
@@ -3,20 +3,24 @@ on:
   push:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/man'
       - '**.md'
       - '**.rdoc'
       - '**/.document'
-      - '.*.yml'
   pull_request:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/man'
       - '**.md'
       - '**.rdoc'
       - '**/.document'
-      - '.*.yml'
   merge_group:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
 
 concurrency:
   group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
@@ -29,50 +33,46 @@ jobs:
   update-deps:
     strategy:
       matrix:
-        os: [ubuntu-20.04]
+        os: [ubuntu-22.04]
       fail-fast: true
-
     runs-on: ${{ matrix.os }}
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-
-      - uses: ./.github/actions/setup/ubuntu
+      - 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 libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev bison autoconf ruby
         if: ${{ contains(matrix.os, 'ubuntu') }}
-
-      - uses: ./.github/actions/setup/macos
+      - name: Install libraries
+        run: |
+          brew install gmp libffi openssl@1.1 zlib autoconf automake libtool readline
         if: ${{ contains(matrix.os, 'macos') }}
-
-      - uses: ./.github/actions/setup/directories
-
-      - uses: ruby/setup-ruby@a6e6f86333f0a2523ece813039b8b4be04560854 # v1.190.0
+      - name: git config
+        run: |
+          git config --global advice.detachedHead 0
+          git config --global init.defaultBranch garbage
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
-          ruby-version: '3.0'
-          bundler: none
-
+          path: .downloaded-cache
+          key: downloaded-cache
+      - run: ./autogen.sh
       - name: Run configure
         run: ./configure -C --disable-install-doc --disable-rubygems --with-gcc 'optflags=-O0' 'debugflags=-save-temps=obj -g'
-
       - run: make all golf
-
-      - run: ./goruby -veh
-
       - run: ruby tool/update-deps --fix
-
       - run: git diff --no-ext-diff --ignore-submodules --exit-code
-
-      - uses: ./.github/actions/slack
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
         with:
-          label: ${{ matrix.os }} / Dependencies need to update
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ matrix.os }} / Dependencies need to update",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
-        if: ${{ failure() }}
+        if: ${{ failure() && github.event_name == 'push' }}
diff --git a/.github/workflows/check_misc.yml b/.github/workflows/check_misc.yml
deleted file mode 100644
index 7da7dd0af7..0000000000
--- a/.github/workflows/check_misc.yml
+++ /dev/null
@@ -1,117 +0,0 @@
-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@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with:
-          token: ${{ (github.repository == 'ruby/ruby' && !startsWith(github.event_name, 'pull')) && secrets.MATZBOT_GITHUB_TOKEN || secrets.GITHUB_TOKEN }}
-
-      - uses: ./.github/actions/setup/directories
-        with:
-          makeup: true
-          # Skip overwriting MATZBOT_GITHUB_TOKEN
-          checkout: '' # false (ref: https://github.com/actions/runner/issues/2238)
-
-      - name: Check if C-sources are US-ASCII
-        run: |
-          grep -r -n --include='*.[chyS]' --include='*.asm' $'[^\t-~]' -- . && exit 1 || :
-
-      - name: Check for trailing spaces
-        run: |
-          git grep -I -n $'[\t ]$' -- '*.rb' '*.[chy]' '*.rs' '*.yml' && exit 1 || :
-          git grep -n $'^[\t ][\t ]*$' -- '*.md' && exit 1 || :
-
-      - 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: gems
-        run: true
-        if: ${{ github.ref == 'refs/heads/master' }}
-
-      - name: Download previous gems list
-        run: |
-          data=default_gems.json
-          mkdir -p .downloaded-cache
-          ln -s .downloaded-cache/$data .
-          curl -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' }}
-
-      - 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/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 676047cc9c..8dba76fbe2 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -1,23 +1,20 @@
-name: 'CodeQL'
+name: "Code scanning - action"
 
 on:
-  push:
-    branches: ['master']
-    paths-ignore:
-      - 'doc/**'
-      - '**/man/*'
-      - '**.md'
-      - '**.rdoc'
-      - '**/.document'
-      - '.*.yml'
-  pull_request:
-    paths-ignore:
-      - 'doc/**'
-      - '**/man/*'
-      - '**.md'
-      - '**.rdoc'
-      - '**/.document'
-      - '.*.yml'
+  # push:
+  #   paths-ignore:
+  #     - 'doc/**'
+  #     - '**/man'
+  #     - '**.md'
+  #     - '**.rdoc'
+  #     - '**/.document'
+  # pull_request:
+  #   paths-ignore:
+  #     - 'doc/**'
+  #     - '**/man'
+  #     - '**.md'
+  #     - '**.rdoc'
+  #     - '**/.document'
   schedule:
     - cron: '0 12 * * *'
   workflow_dispatch:
@@ -26,96 +23,53 @@ 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
+permissions:  # added using https://github.com/step-security/secure-workflows
   contents: read
 
 jobs:
-  analyze:
-    name: Analyze
-    runs-on: ubuntu-latest
+  CodeQL-Build:
+
+    # CodeQL runs on ubuntu-latest and windows-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/autobuild to send a status report
+      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/autobuild to send a status report
+    runs-on: ubuntu-latest
     # 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.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') && github.event.head_commit.pusher.name != 'dependabot[bot]' }}
 
     env:
       enable_install_doc: no
 
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - language: cpp
-          - language: ruby
-
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-
-      - name: Install libraries
-        if: ${{ contains(matrix.os, 'macos') }}
-        uses: ./.github/actions/setup/macos
-
-      - name: Install libraries
-        if : ${{ matrix.os == 'ubuntu-latest' }}
-        uses: ./.github/actions/setup/ubuntu
+    - 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 libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev bison autoconf ruby
 
-      - uses: ./.github/actions/setup/directories
+    - name: Checkout repository
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
-      - name: Remove an obsolete rubygems vendored file
-        if: ${{ matrix.os == 'ubuntu-latest' }}
-        run: sudo rm /usr/lib/ruby/vendor_ruby/rubygems/defaults/operating_system.rb
+    - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+      with:
+        path: .downloaded-cache
+        key: downloaded-cache
 
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@6db8d6351fd0be61f9ed8ebd12ccd35dcec51fea # v3.26.11
-        with:
-          languages: ${{ matrix.language }}
+    - name: Remove an obsolete rubygems vendored file
+      run: sudo rm /usr/lib/ruby/vendor_ruby/rubygems/defaults/operating_system.rb
 
-      - name: Autobuild
-        uses: github/codeql-action/autobuild@6db8d6351fd0be61f9ed8ebd12ccd35dcec51fea # v3.26.11
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@959cbb7472c4d4ad70cdfe6f4976053fe48ab394 # v2.1.37
+      with:
+        config-file: ./.github/codeql/codeql-config.yml
+        trap-caching: false
 
-      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@6db8d6351fd0be61f9ed8ebd12ccd35dcec51fea # v3.26.11
-        with:
-          category: '/language:${{ matrix.language }}'
-          upload: False
-          output: sarif-results
+    - name: Set ENV
+      run: echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
 
-      - name: filter-sarif
-        uses: advanced-security/filter-sarif@f3b8118a9349d88f7b1c0c488476411145b6270d # v1.0.1
-        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
-            -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: Autobuild
+      uses: github/codeql-action/autobuild@959cbb7472c4d4ad70cdfe6f4976053fe48ab394 # v2.1.37
 
-      - name: Upload SARIF
-        uses: github/codeql-action/upload-sarif@6db8d6351fd0be61f9ed8ebd12ccd35dcec51fea # v3.26.11
-        with:
-          sarif_file: sarif-results/${{ matrix.language }}.sarif
-        continue-on-error: true
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@959cbb7472c4d4ad70cdfe6f4976053fe48ab394 # v2.1.37
diff --git a/.github/workflows/compilers.yml b/.github/workflows/compilers.yml
index 3fb3813d0c..caf12cc0f4 100644
--- a/.github/workflows/compilers.yml
+++ b/.github/workflows/compilers.yml
@@ -1,386 +1,280 @@
-# 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/*'
+      - '**/man'
       - '**.md'
       - '**.rdoc'
       - '**/.document'
-      - '.*.yml'
   pull_request:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
-      - '**.md'
+      - '**/man'
       - '**.rdoc'
       - '**/.document'
-      - '.*.yml'
   merge_group:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.rdoc'
+      - '**/.document'
 
 concurrency:
   group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
   cancel-in-progress: ${{ startsWith(github.event_name, 'pull') }}
 
+# GitHub actions does not support YAML anchors.  This creative use of
+# environment variables (plus the "echo $GITHUB_ENV" hack) is to reroute that
+# restriction.
+env:
+  default_cc: clang-15
+  append_cc: ''
+
+  # -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.
+  optflags: '-O1'
+
+  # -g0 disables backtraces when SEGV.  Do not set that.
+  debugflags: '-ggdb3'
+
+  default_configure: >-
+    --enable-debug-env
+    --disable-install-doc
+    --with-ext=-test-/cxxanyargs,+
+  append_configure: >-
+    --without-valgrind
+    --without-jemalloc
+    --without-gmp
+
+  UPDATE_UNICODE: >-
+    UNICODE_FILES=.
+    UNICODE_PROPERTY_FILES=.
+    UNICODE_AUXILIARY_FILES=.
+    UNICODE_EMOJI_FILES=.
+  CONFIGURE_TTY: never
+  GITPULLOPTIONS: --no-tags origin ${{github.ref}}
+  RUBY_DEBUG: ci rgengc
+  RUBY_TESTOPTS: >-
+    -q
+    --color=always
+    --tty=no
+
 permissions:
   contents: read
 
-# Each job is split so that they roughly take 30min to run through.
 jobs:
-  compile1:
-    name: 'omnibus compilations, #1'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      - name: 'clang 18 LTO'
-        uses: './.github/actions/compilers'
-        with:
-          tag: clang-18
-          with_gcc: 'clang-18 -flto=auto'
-          optflags: '-O2'
-          enable_shared: false
-      - name: 'GCC 13 LTO'
-        uses: './.github/actions/compilers'
-        with:
-          tag: gcc-13
-          with_gcc: 'gcc-13 -flto=auto -ffat-lto-objects -Werror=lto-type-mismatch'
-          optflags: '-O2'
-          enable_shared: false
+  compile:
+    strategy:
+      fail-fast: false
+      matrix:
+        env:
+          - {}
+        entry:
+          - { name: gcc-12,    env: { default_cc: gcc-12 } }
+          - { name: gcc-11,    env: { default_cc: gcc-11 } }
+          - { name: gcc-10,    env: { default_cc: gcc-10 } }
+          - { name: gcc-9,     env: { default_cc: gcc-9 } }
+          - { name: gcc-8,     env: { default_cc: gcc-8 } }
+          - { name: gcc-7,     env: { default_cc: gcc-7 } }
+          - name: 'gcc-13 LTO'
+            container: gcc-13
+            env:
+              default_cc: 'gcc-13 -flto=auto -ffat-lto-objects -Werror=lto-type-mismatch'
+              optflags: '-O2'
+            shared: disable
+            # check: true
+          - { name: clang-16,  env: { default_cc: clang-16 } }
+          - { name: clang-15,  env: { default_cc: clang-15 } }
+          - { name: clang-14,  env: { default_cc: clang-14 } }
+          - { name: clang-13,  env: { default_cc: clang-13 } }
+          - { name: clang-12,  env: { default_cc: clang-12 } }
+          - { name: clang-11,  env: { default_cc: clang-11 } }
+          - { name: clang-10,  env: { default_cc: clang-10 } }
+          # llvm-objcopy<=9 doesn't have --wildcard. It compiles, but leaves Rust symbols in libyjit.o.
+          - { name: clang-9,   env: { default_cc: clang-9,   append_configure: '--disable-yjit' } }
+          - { name: clang-8,   env: { default_cc: clang-8,   append_configure: '--disable-yjit' } }
+          - { name: clang-7,   env: { default_cc: clang-7,   append_configure: '--disable-yjit' } }
+          - { name: clang-6.0, env: { default_cc: clang-6.0, append_configure: '--disable-yjit' } }
+          - name: 'clang-16 LTO'
+            container: clang-16
+            env:
+              default_cc: 'clang-16 -flto=auto'
+              optflags: '-O2'
+            shared: disable
+            # check: true
 
-  compile2:
-    name: 'omnibus compilations, #2'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      - { uses: './.github/actions/compilers', name: 'GCC 13', with: { tag: 'gcc-13' } }
-      - { uses: './.github/actions/compilers', name: 'GCC 12', with: { tag: 'gcc-12' } }
-      - { uses: './.github/actions/compilers', name: 'GCC 11', with: { tag: 'gcc-11' } }
-      - { uses: './.github/actions/compilers', name: 'GCC 10', with: { tag: 'gcc-10' } }
-      - { uses: './.github/actions/compilers', name: 'GCC 9',  with: { tag: 'gcc-9'  } }
-      - { uses: './.github/actions/compilers', name: 'GCC 8',  with: { tag: 'gcc-8'  } }
-      - { uses: './.github/actions/compilers', name: 'GCC 7',  with: { tag: 'gcc-7'  } }
+#         - { name: aarch64-linux-gnu,     crosshost: aarch64-linux-gnu, container: crossbuild-essential-arm64 }
+#         - { name: arm-linux-gnueabi,     crosshost: arm-linux-gnueabi }
+#         - { name: arm-linux-gnueabihf,   crosshost: arm-linux-gnueabihf }
+#         - { name: i686-w64-mingw32,      crosshost: i686-w64-mingw32 }
+#         - { name: powerpc-linux-gnu,     crosshost: powerpc-linux-gnu }
+#         - { name: powerpc64le-linux-gnu, crosshost: powerpc64le-linux-gnu, container: crossbuild-essential-ppc64el }
+#         - { name: s390x-linux-gnu,       crosshost: s390x-linux-gnu, container: crossbuild-essential-s390x }
+#         - { name: x86_64-w64-mingw32,    crosshost: x86_64-w64-mingw32, container: mingw-w64 }
 
-  compile3:
-    name: 'omnibus compilations, #3'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      - { uses: './.github/actions/compilers', name: 'clang 20', with: { tag: 'clang-20' } }
-      - { uses: './.github/actions/compilers', name: 'clang 19', with: { tag: 'clang-19' } }
-      - { uses: './.github/actions/compilers', name: 'clang 18', with: { tag: 'clang-18' } }
-      - { uses: './.github/actions/compilers', name: 'clang 17', with: { tag: 'clang-17' } }
-      - { uses: './.github/actions/compilers', name: 'clang 16', with: { tag: 'clang-16' } }
-      - { uses: './.github/actions/compilers', name: 'clang 15', with: { tag: 'clang-15' } }
-      - { uses: './.github/actions/compilers', name: 'clang 14', with: { tag: 'clang-14' } }
-      - { uses: './.github/actions/compilers', name: 'clang 13', with: { tag: 'clang-13' } }
-      - { uses: './.github/actions/compilers', name: 'clang 12', with: { tag: 'clang-12' } }
+          # -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
+          - { name: c99,   env: { append_cc: '-std=c99   -Werror=pedantic -pedantic-errors -Wno-strict-prototypes' } }
+#         - { name: c11,   env: { append_cc: '-std=c11   -Werror=pedantic -pedantic-errors -Wno-strict-prototypes' } }
+#         - { name: c17,   env: { append_cc: '-std=c17   -Werror=pedantic -pedantic-errors -Wno-strict-prototypes' } }
+          - { name: c2x,   env: { append_cc: '-std=c2x   -Werror=pedantic -pedantic-errors -Wno-strict-prototypes' } }
+          - { name: c++98, env: { CXXFLAGS: '-std=c++98 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
+#         - { name: c++11, env: { CXXFLAGS: '-std=c++11 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
+#         - { name: c++14, env: { CXXFLAGS: '-std=c++14 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
+#         - { name: c++17, env: { CXXFLAGS: '-std=c++17 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
+          - { name: c++2a, env: { CXXFLAGS: '-std=c++2a -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
 
-  compile4:
-    name: 'omnibus compilations, #4'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      - { uses: './.github/actions/compilers', name: 'clang 11', with: { tag: 'clang-11' } }
-      - { uses: './.github/actions/compilers', name: 'clang 10', with: { tag: 'clang-10' } }
-        # llvm-objcopy<=9 doesn't have --wildcard. It compiles, but leaves Rust symbols in libyjit.o.
-      - { uses: './.github/actions/compilers', name: 'clang 9',  with: { tag: 'clang-9',   append_configure: '--disable-yjit' } }
-      - { uses: './.github/actions/compilers', name: 'clang 8',  with: { tag: 'clang-8',   append_configure: '--disable-yjit' } }
-      - { uses: './.github/actions/compilers', name: 'clang 7',  with: { tag: 'clang-7',   append_configure: '--disable-yjit' } }
-      - { uses: './.github/actions/compilers', name: 'clang 6',  with: { tag: 'clang-6.0', append_configure: '--disable-yjit' } }
-      - { uses: './.github/actions/compilers', name: 'ext/Setup', with: { static_exts: 'etc json/* */escape' } }
+          - { name: '-O0', env: { optflags: '-O0 -march=x86-64 -mtune=generic' } }
+#         - { name: '-O3', env: { optflags: '-O3 -march=x86-64 -mtune=generic' }, check: true }
 
-  compile5:
-    name: 'omnibus compilations, #5'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      # -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' } }
-      - { uses: './.github/actions/compilers', name: 'C11',   with: { CFLAGS:   '-std=c11   -Werror=pedantic -pedantic-errors -Wno-strict-prototypes' } }
-      - { uses: './.github/actions/compilers', name: 'C17',   with: { CFLAGS:   '-std=c17   -Werror=pedantic -pedantic-errors -Wno-strict-prototypes' } }
-      - { uses: './.github/actions/compilers', name: 'C23',   with: { CFLAGS:   '-std=c2x   -Werror=pedantic -pedantic-errors -Wno-strict-prototypes' } }
-      - { uses: './.github/actions/compilers', name: 'C++98', with: { CXXFLAGS: '-std=c++98 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
-      - { uses: './.github/actions/compilers', name: 'C++11', with: { CXXFLAGS: '-std=c++11 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
-      - { uses: './.github/actions/compilers', name: 'C++14', with: { CXXFLAGS: '-std=c++14 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
-      - { uses: './.github/actions/compilers', name: 'C++17', with: { CXXFLAGS: '-std=c++17 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
-      - { uses: './.github/actions/compilers', name: 'C++20', with: { CXXFLAGS: '-std=c++20 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
-      - { uses: './.github/actions/compilers', name: 'C++23', with: { CXXFLAGS: '-std=c++23 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
-      - { uses: './.github/actions/compilers', name: 'C++26', with: { CXXFLAGS: '-std=c++26 -Werror=pedantic -pedantic-errors -Wno-c++11-long-long' } }
+          - { name: gmp,                  env: { append_configure: '--with-gmp' } }
+          - { name: jemalloc,             env: { append_configure: '--with-jemalloc' } }
+          - { name: valgrind,             env: { append_configure: '--with-valgrind' } }
+          - { name: 'coroutine=ucontext', env: { append_configure: '--with-coroutine=ucontext' } }
+          - { name: 'coroutine=pthread',  env: { append_configure: '--with-coroutine=pthread' } }
+          - { name: disable-jit-support,  env: { append_configure: '--disable-jit-support' } }
+          - { name: disable-dln,          env: { append_configure: '--disable-dln' } }
+          - { name: enable-mkmf-verbose,  env: { append_configure: '--enable-mkmf-verbose' } }
+          - { name: disable-rubygems,     env: { append_configure: '--disable-rubygems' } }
+          - { name: RUBY_DEVEL,           env: { append_configure: '--enable-devel' } }
 
-  compile6:
-    name: 'omnibus compilations, #6'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      - { uses: './.github/actions/compilers', name: '-O0', with: { optflags: '-O0 -march=x86-64 -mtune=generic' } }
-      # - { uses: './.github/actions/compilers', name: '-O3', with: { optflags: '-O3 -march=x86-64 -mtune=generic', check: true } }
-      - { uses: './.github/actions/compilers', name: 'gmp',                 with: { append_configure: '--with-gmp', check: 'ruby/test_bignum.rb', mspecopt: "/github/workspace/src/spec/ruby/core/integer" } }
-      - { uses: './.github/actions/compilers', name: 'jemalloc',            with: { append_configure: '--with-jemalloc' } }
-      - { uses: './.github/actions/compilers', name: 'valgrind',            with: { append_configure: '--with-valgrind' } }
-      - { uses: './.github/actions/compilers', name: 'coroutine=ucontext',  with: { append_configure: '--with-coroutine=ucontext' } }
-      - { uses: './.github/actions/compilers', name: 'coroutine=pthread',   with: { append_configure: '--with-coroutine=pthread' } }
+          - { name: OPT_THREADED_CODE=1,            env: { cppflags: '-DOPT_THREADED_CODE=1' } }
+          - { name: OPT_THREADED_CODE=2,            env: { cppflags: '-DOPT_THREADED_CODE=2' } }
+          - { name: OPT_THREADED_CODE=3,            env: { cppflags: '-DOPT_THREADED_CODE=3' } }
 
-  compile7:
-    name: 'omnibus compilations, #7'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      - { uses: './.github/actions/compilers', name: 'disable-jit',         with: { append_configure: '--disable-yjit --disable-rjit' } }
-      - { uses: './.github/actions/compilers', name: 'disable-dln',         with: { append_configure: '--disable-dln' } }
-      - { uses: './.github/actions/compilers', name: 'enable-mkmf-verbose', with: { append_configure: '--enable-mkmf-verbose' } }
-      - { uses: './.github/actions/compilers', name: 'disable-rubygems',    with: { append_configure: '--disable-rubygems' } }
-      - { uses: './.github/actions/compilers', name: 'RUBY_DEVEL',          with: { append_configure: '--enable-devel' } }
-      - { uses: './.github/actions/compilers', name: 'OPT_THREADED_CODE=0',            with: { cppflags: '-DOPT_THREADED_CODE=0' } }
-      - { uses: './.github/actions/compilers', name: 'OPT_THREADED_CODE=1',            with: { cppflags: '-DOPT_THREADED_CODE=1' } }
-      - { uses: './.github/actions/compilers', name: 'OPT_THREADED_CODE=2',            with: { cppflags: '-DOPT_THREADED_CODE=2' } }
+          - { name: NDEBUG,                         env: { cppflags: '-DNDEBUG' } }
+          - { name: RUBY_DEBUG,                     env: { cppflags: '-DRUBY_DEBUG' } }
+#         - { name: ARRAY_DEBUG,                    env: { cppflags: '-DARRAY_DEBUG' } }
+#         - { name: BIGNUM_DEBUG,                   env: { cppflags: '-DBIGNUM_DEBUG' } }
+#         - { name: CCAN_LIST_DEBUG,                env: { cppflags: '-DCCAN_LIST_DEBUG' } }
+#         - { name: CPDEBUG=-1,                     env: { cppflags: '-DCPDEBUG=-1' } }
+#         - { name: ENC_DEBUG,                      env: { cppflags: '-DENC_DEBUG' } }
+#         - { name: GC_DEBUG,                       env: { cppflags: '-DGC_DEBUG' } }
+#         - { name: HASH_DEBUG,                     env: { cppflags: '-DHASH_DEBUG' } }
+#         - { name: ID_TABLE_DEBUG,                 env: { cppflags: '-DID_TABLE_DEBUG' } }
+#         - { name: RGENGC_DEBUG=-1,                env: { cppflags: '-DRGENGC_DEBUG=-1' } }
+#         - { name: SYMBOL_DEBUG,                   env: { cppflags: '-DSYMBOL_DEBUG' } }
 
-  compile8:
-    name: 'omnibus compilations, #8'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      - { uses: './.github/actions/compilers', name: 'NDEBUG',                         with: { cppflags: '-DNDEBUG' } }
-      - { uses: './.github/actions/compilers', name: 'RUBY_DEBUG',                     with: { cppflags: '-DRUBY_DEBUG' } }
-      - { uses: './.github/actions/compilers', name: 'ARRAY_DEBUG',                    with: { cppflags: '-DARRAY_DEBUG' } }
-      - { uses: './.github/actions/compilers', name: 'BIGNUM_DEBUG',                   with: { cppflags: '-DBIGNUM_DEBUG' } }
-      - { uses: './.github/actions/compilers', name: 'CCAN_LIST_DEBUG',                with: { cppflags: '-DCCAN_LIST_DEBUG' } }
-      - { uses: './.github/actions/compilers', name: 'CPDEBUG=-1',                     with: { cppflags: '-DCPDEBUG=-1' } }
-      - { uses: './.github/actions/compilers', name: 'ENC_DEBUG',                      with: { cppflags: '-DENC_DEBUG' } }
-      - { uses: './.github/actions/compilers', name: 'GC_DEBUG',                       with: { cppflags: '-DGC_DEBUG' } }
-      - { uses: './.github/actions/compilers', name: 'HASH_DEBUG',                     with: { cppflags: '-DHASH_DEBUG' } }
-      - { uses: './.github/actions/compilers', name: 'ID_TABLE_DEBUG',                 with: { cppflags: '-DID_TABLE_DEBUG' } }
+#         - { name: RGENGC_CHECK_MODE,              env: { cppflags: '-DRGENGC_CHECK_MODE' } }
+#         - { name: TRANSIENT_HEAP_CHECK_MODE,      env: { cppflags: '-DTRANSIENT_HEAP_CHECK_MODE' } }
+#         - { name: VM_CHECK_MODE,                  env: { cppflags: '-DVM_CHECK_MODE' } }
 
-  compile9:
-    name: 'omnibus compilations, #9'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      - { uses: './.github/actions/compilers', name: 'RGENGC_DEBUG=-1',                with: { cppflags: '-DRGENGC_DEBUG=-1' } }
-      - { uses: './.github/actions/compilers', name: 'SYMBOL_DEBUG',                   with: { cppflags: '-DSYMBOL_DEBUG' } }
-      - { uses: './.github/actions/compilers', name: 'RGENGC_CHECK_MODE',              with: { cppflags: '-DRGENGC_CHECK_MODE' } }
-      - { uses: './.github/actions/compilers', name: 'VM_CHECK_MODE',                  with: { cppflags: '-DVM_CHECK_MODE' } }
-      - { uses: './.github/actions/compilers', name: 'USE_EMBED_CI=0',                 with: { cppflags: '-DUSE_EMBED_CI=0' } }
-      - { uses: './.github/actions/compilers', name: 'USE_FLONUM=0',                   with: { cppflags: '-DUSE_FLONUM=0', append_configure: '--disable-yjit' } }
-      - { uses: './.github/actions/compilers', name: 'USE_LAZY_LOAD',                  with: { cppflags: '-DUSE_LAZY_LOAD' } }
-      - { uses: './.github/actions/compilers', name: 'USE_SYMBOL_GC=0',                with: { cppflags: '-DUSE_SYMBOL_GC=0' } }
-      - { uses: './.github/actions/compilers', name: 'USE_THREAD_CACHE=0',             with: { cppflags: '-DUSE_THREAD_CACHE=0' } }
+          - { name: USE_EMBED_CI=0,                 env: { cppflags: '-DUSE_EMBED_CI=0' } }
+          - name: USE_FLONUM=0,
+            env:
+              cppflags: '-DUSE_FLONUM=0'
+              # yjit requires FLONUM for the pointer tagging scheme
+              append_configure: '--disable-yjit'
+#         - { name: USE_GC_MALLOC_OBJ_INFO_DETAILS, env: { cppflags: '-DUSE_GC_MALLOC_OBJ_INFO_DETAILS' } }
+          - { name: USE_LAZY_LOAD,                  env: { cppflags: '-DUSE_LAZY_LOAD' } }
+#         - { name: USE_RINCGC=0,                   env: { cppflags: '-DUSE_RINCGC=0' } }
+#         - { name: USE_SYMBOL_GC=0,                env: { cppflags: '-DUSE_SYMBOL_GC=0' } }
+#         - { name: USE_THREAD_CACHE=0,             env: { cppflags: '-DUSE_THREAD_CACHE=0' } }
+#         - { name: USE_TRANSIENT_HEAP=0,           env: { cppflags: '-DUSE_TRANSIENT_HEAP=0' } }
+#         - { name: USE_RUBY_DEBUG_LOG=1,           env: { cppflags: '-DUSE_RUBY_DEBUG_LOG=1' } }
+          - { name: USE_RVARGC=0,                   env: { cppflags: '-DUSE_RVARGC=0' } }
+#         - { name: USE_RVARGC=1,                   env: { cppflags: '-DUSE_RVARGC=1' } }
+#         - { name: USE_DEBUG_COUNTER,              env: { cppflags: '-DUSE_DEBUG_COUNTER=1', RUBY_DEBUG_COUNTER_DISABLE: '1' } }
 
-  compileX:
-    name: 'omnibus compilations, #10'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      - { uses: './.github/actions/compilers', name: 'USE_RUBY_DEBUG_LOG=1',           with: { cppflags: '-DUSE_RUBY_DEBUG_LOG=1' } }
-      - { uses: './.github/actions/compilers', name: 'USE_DEBUG_COUNTER',              with: { cppflags: '-DUSE_DEBUG_COUNTER=1' } }
-      - { uses: './.github/actions/compilers', name: 'SHARABLE_MIDDLE_SUBSTRING',      with: { cppflags: '-DSHARABLE_MIDDLE_SUBSTRING=1' } }
-      - { uses: './.github/actions/compilers', name: 'DEBUG_FIND_TIME_NUMGUESS',       with: { cppflags: '-DDEBUG_FIND_TIME_NUMGUESS' } }
-      - { uses: './.github/actions/compilers', name: 'DEBUG_INTEGER_PACK',             with: { cppflags: '-DDEBUG_INTEGER_PACK' } }
-      - { uses: './.github/actions/compilers', name: 'GC_DEBUG_STRESS_TO_CLASS',       with: { cppflags: '-DGC_DEBUG_STRESS_TO_CLASS' } }
-      - { uses: './.github/actions/compilers', name: 'GC_ENABLE_LAZY_SWEEP=0',         with: { cppflags: '-DGC_ENABLE_LAZY_SWEEP=0' } }
-      - { uses: './.github/actions/compilers', name: 'GC_PROFILE_DETAIL_MEMORY',       with: { cppflags: '-DGC_PROFILE_DETAIL_MEMORY' } }
+          - { name: DEBUG_FIND_TIME_NUMGUESS,       env: { cppflags: '-DDEBUG_FIND_TIME_NUMGUESS' } }
+          - { name: DEBUG_INTEGER_PACK,             env: { cppflags: '-DDEBUG_INTEGER_PACK' } }
+#         - { name: ENABLE_PATH_CHECK,              env: { cppflags: '-DENABLE_PATH_CHECK' } }
 
-  compileB:
-    name: 'omnibus compilations, #11'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      - { uses: './.github/actions/compilers', name: 'GC_PROFILE_MORE_DETAIL',         with: { cppflags: '-DGC_PROFILE_MORE_DETAIL' } }
-      - { uses: './.github/actions/compilers', name: 'MALLOC_ALLOCATED_SIZE_CHECK',    with: { cppflags: '-DMALLOC_ALLOCATED_SIZE_CHECK' } }
-      - { uses: './.github/actions/compilers', name: 'RGENGC_ESTIMATE_OLDMALLOC',      with: { cppflags: '-DRGENGC_ESTIMATE_OLDMALLOC' } }
-      # - { uses: './.github/actions/compilers', name: 'RGENGC_FORCE_MAJOR_GC',          with: { cppflags: '-DRGENGC_FORCE_MAJOR_GC' } }
-      - { uses: './.github/actions/compilers', name: 'RGENGC_OBJ_INFO',                with: { cppflags: '-DRGENGC_OBJ_INFO' } }
-      - { uses: './.github/actions/compilers', name: 'RGENGC_PROFILE',                 with: { cppflags: '-DRGENGC_PROFILE' } }
-      - { uses: './.github/actions/compilers', name: 'VM_DEBUG_BP_CHECK',              with: { cppflags: '-DVM_DEBUG_BP_CHECK' } }
-      - { uses: './.github/actions/compilers', name: 'VM_DEBUG_VERIFY_METHOD_CACHE',   with: { cppflags: '-DVM_DEBUG_VERIFY_METHOD_CACHE' } }
+          - { name: GC_DEBUG_STRESS_TO_CLASS,       env: { cppflags: '-DGC_DEBUG_STRESS_TO_CLASS' } }
+#         - { name: GC_ENABLE_LAZY_SWEEP=0,         env: { cppflags: '-DGC_ENABLE_LAZY_SWEEP=0' } }
+#         - { name: GC_PROFILE_DETAIL_MEMOTY,       env: { cppflags: '-DGC_PROFILE_DETAIL_MEMOTY' } }
+#         - { name: GC_PROFILE_MORE_DETAIL,         env: { cppflags: '-DGC_PROFILE_MORE_DETAIL' } }
 
-  compileC:
-    name: 'omnibus compilations, #12'
-    runs-on: ubuntu-latest
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-    services: { docuum: { image: 'stephanmisc/docuum', options: '--init', volumes: [ '/root', '/var/run/docker.sock:/var/run/docker.sock' ] } }
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github }
-      - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true } }
-      - { uses: './.github/actions/compilers', name: 'enable-yjit',                    with: { append_configure: '--enable-yjit --disable-rjit' } }
-      - { uses: './.github/actions/compilers', name: 'enable-rjit',                    with: { append_configure: '--enable-rjit --disable-yjit' } }
-      - { uses: './.github/actions/compilers', name: 'YJIT_FORCE_ENABLE',              with: { cppflags: '-DYJIT_FORCE_ENABLE' } }
-      - { uses: './.github/actions/compilers', name: 'RJIT_FORCE_ENABLE',              with: { cppflags: '-DRJIT_FORCE_ENABLE' } }
-      - { uses: './.github/actions/compilers', name: 'UNIVERSAL_PARSER',               with: { cppflags: '-DUNIVERSAL_PARSER' } }
+#         - { name: CALC_EXACT_MALLOC_SIZE,         env: { cppflags: '-DCALC_EXACT_MALLOC_SIZE' } }
+#         - { name: MALLOC_ALLOCATED_SIZE_CHECK,    env: { cppflags: '-DMALLOC_ALLOCATED_SIZE_CHECK' } }
+
+#         - { name: IBF_ISEQ_ENABLE_LOCAL_BUFFER,   env: { cppflags: '-DIBF_ISEQ_ENABLE_LOCAL_BUFFER' } }
+
+#         - { name: RGENGC_ESTIMATE_OLDMALLOC,      env: { cppflags: '-DRGENGC_ESTIMATE_OLDMALLOC' } }
+#         - { name: RGENGC_FORCE_MAJOR_GC,          env: { cppflags: '-DRGENGC_FORCE_MAJOR_GC' } }
+#         - { name: RGENGC_OBJ_INFO,                env: { cppflags: '-DRGENGC_OBJ_INFO' } }
+#         - { name: RGENGC_OLD_NEWOBJ_CHECK,        env: { cppflags: '-DRGENGC_OLD_NEWOBJ_CHECK' } }
+#         - { name: RGENGC_PROFILE,                 env: { cppflags: '-DRGENGC_PROFILE' } }
 
-  compilemax:
-    name: 'omnibus compilations, result'
+#         - { name: VM_DEBUG_BP_CHECK,              env: { cppflags: '-DVM_DEBUG_BP_CHECK' } }
+#         - { name: VM_DEBUG_VERIFY_METHOD_CACHE,   env: { cppflags: '-DVM_DEBUG_VERIFY_METHOD_CACHE' } }
+
+          - { name: MJIT_FORCE_ENABLE,              env: { cppflags: '-DMJIT_FORCE_ENABLE' } }
+          - { name: YJIT_FORCE_ENABLE,              env: { cppflags: '-DYJIT_FORCE_ENABLE' } }
+
+    name: ${{ matrix.entry.name }}
     runs-on: ubuntu-latest
-    if: ${{ always() }}
-    needs:
-      - 'compile1'
-      - 'compile2'
-      - 'compile3'
-      - 'compile4'
-      - 'compile5'
-      - 'compile6'
-      - 'compile7'
-      - 'compile8'
-      - 'compile9'
-      - 'compileX'
-      - 'compileB'
-      - 'compileC'
+    container:
+      image: ghcr.io/ruby/ruby-ci-image:${{ matrix.entry.container || matrix.entry.env.default_cc || 'clang-15' }}
+      options: --user root
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
+    env: ${{ matrix.entry.env || matrix.env }}
     steps:
-      - uses: ./.github/actions/slack
+      - run: id
+        working-directory:
+      - run: mkdir build
+        working-directory:
+      - name: setenv
+        run: |
+          echo "GNUMAKEFLAGS=-sj$((1 + $(nproc --all)))" >> $GITHUB_ENV
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: src
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
-          label: 'omnibus'
+          path: src/.downloaded-cache
+          key: downloaded-cache
+      - run: ./autogen.sh
+        working-directory: src
+      - name: Run configure
+        run: >
+          ../src/configure -C ${default_configure} ${append_configure}
+          --${{
+            matrix.entry.crosshost && 'host' || 'with-gcc'
+          }}=${{
+            matrix.entry.crosshost || '"${default_cc}${append_cc:+ $append_cc}"'
+          }}
+          --${{ matrix.entry.shared || 'enable' }}-shared
+      - run: make extract-extlibs
+      - run: make incs
+      - run: make showflags
+      - run: make
+      - run: make leaked-globals
+      - run: make test
+      - run: make install
+        if: ${{ matrix.entry.check }}
+      - run: make test-tool
+        if: ${{ matrix.entry.check }}
+      - run: make test-all TESTS='-- ruby -ext-'
+        if: ${{ matrix.entry.check }}
+      - run: make test-spec
+        env:
+          CHECK_LEAKS: true
+        if: ${{ matrix.entry.check }}
+      - run: make test-annocheck
+        if: ${{ matrix.entry.check && endsWith(matrix.entry.name, 'annocheck') }}
+
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
+        with:
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ github.workflow }} / ${{ matrix.entry.name }}",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
           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') }}
+        if: ${{ failure() && github.event_name == 'push' }}
 
 defaults:
   run:
diff --git a/.github/workflows/dependabot_automerge.yml b/.github/workflows/dependabot_automerge.yml
deleted file mode 100644
index 69ab5d9131..0000000000
--- a/.github/workflows/dependabot_automerge.yml
+++ /dev/null
@@ -1,30 +0,0 @@
-# from https://github.com/gofiber/swagger/blob/main/.github/workflows/dependabot_automerge.yml
-name: Dependabot auto-merge
-on:
-  pull_request_target:
-
-jobs:
-  automerge:
-    runs-on: ubuntu-latest
-
-    if: ${{ github.event.pull_request.user.login == 'dependabot[bot]' }}
-
-    steps:
-      - name: Dependabot metadata
-        uses: dependabot/fetch-metadata@dbb049abf0d677abbd7f7eee0375145b417fdd34 # v2.2.0
-        id: metadata
-
-      - name: Wait for status checks
-        uses: lewagon/wait-on-check-action@ccfb013c15c8afb7bf2b7c028fb74dc5a068cccc # v1.3.4
-        with:
-          repo-token: ${{ secrets.MATZBOT_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_GITHUB_TOKEN }}
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index dfdfa3c011..d8dc58b119 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -3,15 +3,24 @@ on:
   push:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/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
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
   merge_group:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
 
 concurrency:
   group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
@@ -24,164 +33,80 @@ jobs:
   make:
     strategy:
       matrix:
-        include:
-          - test_task: check
-            os: macos-14
-          - test_task: test-all
-            test_opts: --repeat-count=2
-            os: macos-14
-          - test_task: test-bundler-parallel
-            os: macos-14
-          - test_task: test-bundled-gems
-            os: macos-14
-          - test_task: check
-            os: macos-12
-          - test_task: check
-            os: macos-13
+        test_task: ["check"] # "test-bundler-parallel", "test-bundled-gems"
+        os:
+          - macos-13
+          - macos-14
+          - macos-15
       fail-fast: false
-
     env:
-      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
-
+      GITPULLOPTIONS: --no-tags origin ${{github.ref}}
     runs-on: ${{ matrix.os }}
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+      - run: mkdir build
+        working-directory:
+      - name: git config
+        run: |
+          git config --global advice.detachedHead 0
+          git config --global init.defaultBranch garbage
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
-          sparse-checkout-cone-mode: false
-          sparse-checkout: /.github
-
-      - name: Install libraries
-        uses: ./.github/actions/setup/macos
-
-      - uses: ./.github/actions/setup/directories
+          path: src
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
-          srcdir: src
-          builddir: build
-          makeup: true
-          clean: true
-          dummy-files: ${{ matrix.test_task == 'check' }}
-          # Set fetch-depth: 0 so that Launchable can receive commits information.
-          fetch-depth: 10
-
-      - name: make sure that kern.coredump=1
+          path: src/.downloaded-cache
+          key: downloaded-cache
+      - name: Install libraries
         run: |
-          sysctl -n kern.coredump
-          sudo sysctl -w kern.coredump=1
-          sudo chmod -R +rwx /cores/
-
-      - name: Delete unused SDKs
-        # To free up disk space to not run out during the run
+          brew install gmp libffi openssl@1.1 zlib autoconf automake libtool readline bison
+        working-directory: src
+      - name: Set ENV
         run: |
-          sudo rm -rf ~/.dotnet
-          sudo rm -rf /Library/Android
-          sudo rm -rf /Library/Developer/CoreSimulator
-        continue-on-error: true
-
+          echo "MAKEFLAGS=-j$((1 + $(sysctl -n hw.activecpu)))" >> $GITHUB_ENV
+          echo "PATH="/usr/local/opt/bison/bin:/opt/homebrew/opt/bison/bin:$PATH"" >> $GITHUB_ENV
+      - run: ./autogen.sh
+        working-directory: src
       - name: Run configure
-        run: ../src/configure -C --disable-install-doc ${ruby_configure_args}
-
+        run: ../src/configure -C --disable-install-doc --with-openssl-dir=$(brew --prefix openssl@1.1) --with-readline-dir=$(brew --prefix readline)
+      - run: make incs
       - run: make prepare-gems
         if: ${{ matrix.test_task == 'test-bundled-gems' }}
-
       - run: make
-
-      - run: |
-          make golf
-          case "${{ matrix.configure }}" in
-          *'--enable-shared'*)
-            make runnable
-            ./bin/goruby -veh
-            ;;
-          *)
-            ./goruby -veh
-            ;;
-          esac
-
-      - 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
-        uses: ./.github/actions/launchable/setup
-        with:
-          os: ${{ matrix.os }}
-          test-opts: ${{ matrix.test_opts }}
-          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
-          builddir: build
-          srcdir: src
-        continue-on-error: true
-
-      - name: Set extra test options
-        run: |
-          echo "TESTS=$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
-
+      - run: make leaked-globals
+        if: ${{ matrix.test_task == 'check' }}
       - name: make ${{ matrix.test_task }}
         run: |
-          ulimit -c unlimited
-          make -s ${{ matrix.test_task }} ${TESTS:+TESTS="$TESTS"}
-        timeout-minutes: 60
+          make -s ${{ matrix.test_task }} ${TESTS:+TESTS=`echo "$TESTS" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|'`}
+        timeout-minutes: 40
         env:
-          RUBY_TESTOPTS: '-q --tty=no'
-          TEST_BUNDLED_GEMS_ALLOW_FAILURES: 'typeprof'
-          PRECHECK_BUNDLED_GEMS: 'no'
-
+          RUBY_TESTOPTS: "-q --tty=no"
+          TESTS: ${{ matrix.test_task == 'check' && matrix.skipped_tests || '' }}
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ""
+          PRECHECK_BUNDLED_GEMS: "no"
       - name: make skipped tests
         run: |
-          make -s test-all TESTS="${TESTS//-n!\//-n/}"
+          make -s test-all TESTS=`echo "$TESTS" | sed 's| |$$/ -n/|g;s|^|-n/|;s|$|$$/|'`
         env:
-          GNUMAKEFLAGS: ''
-          RUBY_TESTOPTS: '-v --tty=no'
-          PRECHECK_BUNDLED_GEMS: 'no'
-        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+          GNUMAKEFLAGS: ""
+          RUBY_TESTOPTS: "-v --tty=no"
+          TESTS: ${{ matrix.skipped_tests }}
+          PRECHECK_BUNDLED_GEMS: "no"
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests != '' }}
         continue-on-error: ${{ matrix.continue-on-skipped_tests || false }}
-
-      - uses: ./.github/actions/slack
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
         with:
-          label: ${{ matrix.os }} / ${{ matrix.test_task }}
-          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
-        if: ${{ failure() }}
-
-      - name: Resolve job ID
-        id: job_id
-        uses: actions/github-script@main
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ matrix.os }} / ${{ matrix.test_task }}${{ matrix.configure }}",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
         env:
-          matrix: ${{ toJson(matrix) }}
-        with:
-          script: |
-            const { data: workflow_run } = await github.rest.actions.listJobsForWorkflowRun({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              run_id: context.runId
-            });
-            const matrix = JSON.parse(process.env.matrix);
-            const job_name = `${context.job}${matrix ? ` (${Object.values(matrix).join(", ")})` : ""}`;
-            return workflow_run.jobs.find((job) => job.name === job_name).id;
-
-  result:
-    if: ${{ always() }}
-    name: ${{ github.workflow }} result
-    runs-on: macos-latest
-    needs: [make]
-    steps:
-      - run: exit 1
-        working-directory:
-        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() && github.event_name == 'push' }}
 
 defaults:
   run:
diff --git a/.github/workflows/mingw.yml b/.github/workflows/mingw.yml
index 149f9fbe83..0df917d3d8 100644
--- a/.github/workflows/mingw.yml
+++ b/.github/workflows/mingw.yml
@@ -3,20 +3,24 @@ on:
   push:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/man'
       - '**.md'
       - '**.rdoc'
       - '**/.document'
-      - '.*.yml'
   pull_request:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/man'
       - '**.md'
       - '**.rdoc'
       - '**/.document'
-      - '.*.yml'
   merge_group:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
 
 concurrency:
   group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
@@ -31,140 +35,143 @@ permissions:
 jobs:
   make:
     runs-on: windows-2022
-
     name: ${{ github.workflow }} (${{ matrix.msystem }})
-
     env:
       MSYSTEM: ${{ matrix.msystem }}
       MSYS2_ARCH: x86_64
-      CHOST: 'x86_64-w64-mingw32'
-      CFLAGS: '-march=x86-64 -mtune=generic -O3 -pipe'
-      CXXFLAGS: '-march=x86-64 -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 }}
-
+      CHOST: "x86_64-w64-mingw32"
+      CFLAGS:   "-march=x86-64 -mtune=generic -O3 -pipe"
+      CXXFLAGS: "-march=x86-64 -mtune=generic -O3 -pipe"
+      CPPFLAGS: "-D_FORTIFY_SOURCE=2 -D__USE_MINGW_ANSI_STDIO=1 -DFD_SETSIZE=2048"
+      LDFLAGS:  "-pipe"
+      UPDATE_UNICODE: "UNICODE_FILES=. UNICODE_PROPERTY_FILES=. UNICODE_AUXILIARY_FILES=. UNICODE_EMOJI_FILES=."
+      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'
-            baseruby: '3.2'
-            test_task: 'check'
-            test-all-opts: '--name=!/TestObjSpace#test_reachable_objects_during_iteration/'
+          - msystem: "UCRT64"
+            base_ruby: head
+            test_task: "check"
+            test-all-opts: "--name=!/TestObjSpace#test_reachable_objects_during_iteration/"
       fail-fast: false
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
+      - run: mkdir build
+        working-directory:
+      - name: git config
+        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
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: src
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+        with:
+          path: src/.downloaded-cache
+          key: downloaded-cache
       - name: Set up Ruby & MSYS2
-        uses: ruby/setup-ruby@a6e6f86333f0a2523ece813039b8b4be04560854 # v1.190.0
+        uses: ruby/setup-ruby@13e7a03dc3ac6c3798f4570bfead2aed4d96abfb # v1.244.0
         with:
-          ruby-version: ${{ matrix.baseruby }}
+          ruby-version: ${{ matrix.base_ruby }}
+      - name: set env
+        run: |
+          echo "GNUMAKEFLAGS=-j$((2 * NUMBER_OF_PROCESSORS))" >> $GITHUB_ENV
 
-      - name: Misc system & package info
-        working-directory:
+      - name: where check
         run: |
           # show where
+          mv /c/Windows/System32/libcrypto-1_1-x64.dll /c/Windows/System32/libcrypto-1_1-x64.dll_
+          mv /c/Windows/System32/libssl-1_1-x64.dll    /c/Windows/System32/libssl-1_1-x64.dll_
           result=true
-          for e in gcc.exe ragel.exe make.exe libcrypto-3-x64.dll libssl-3-x64.dll; do
-            echo ::group::$'\033[93m'$e$'\033[m'
+          for e in gcc.exe ragel.exe make.exe bison.exe libcrypto-1_1-x64.dll libssl-1_1-x64.dll; do
+            echo '##['group']'$'\033[93m'$e$'\033[m'
             where $e || result=false
-            echo ::endgroup::
+            echo '##['endgroup']'
           done
+          $result
+
+      - name: version check
+        run: |
           # show version
-          for e in gcc ragel make "openssl version"; do
+          result=true
+          for e in gcc ragel make bison "openssl version"; do
             case "$e" in *" "*) ;; *) e="$e --version";; esac
-            echo ::group::$'\033[93m'$e$'\033[m'
+            echo '##['group']'$'\033[93m'$e$'\033[m'
             $e || result=false
-            echo ::endgroup::
+            echo '##['endgroup']'
           done
-          # show packages
-          echo ::group::$'\033[93m'Packages$'\033[m'
-          pacman -Qs mingw-w64-ucrt-x86_64-* | sed -n "s,local/mingw-w64-ucrt-x86_64-,,p"
-          echo ::endgroup::
           $result
 
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with:
-          sparse-checkout-cone-mode: false
-          sparse-checkout: /.github
-
-      - 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: autogen
+        run: |
+          ./autogen.sh
+        working-directory: src
 
       - name: configure
         run: >
           ../src/configure --disable-install-doc --prefix=/.
           --build=$CHOST --host=$CHOST --target=$CHOST
 
+      - name: update
+        run: |
+          make incs
+
+      - name: download gems
+        run: |
+          make update-gems
+
       - name: make all
         timeout-minutes: 30
-        run: make
+        run: |
+          make
 
-      - name: make install
-        run: make DESTDIR=../install install-nodoc
+      - run: make leaked-globals
 
-      - name: Set up Launchable
-        uses: ./.github/actions/launchable/setup
-        with:
-          os: windows-2022
-          # If we support new test task, we need to change this test-opts.
-          test-opts: --retry --job-status=normal --show-skip --timeout-scale=1.5
-            ${{ matrix.test-all-opts }}
-          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
-          builddir: build
-          srcdir: src
-        continue-on-error: true
+      - name: make install
+        run: |
+          make DESTDIR=../install install-nodoc
 
       - name: test
-        timeout-minutes: 30
-        run: make test
-        shell: cmd
-        env:
-          GNUMAKEFLAGS: ''
-          RUBY_TESTOPTS: '-v --tty=no'
-        if: ${{ matrix.test_task == 'check' || matrix.test_task == 'test' }}
+        timeout-minutes: 5
+        run: |
+          make test
+        if: ${{matrix.test_task == 'check' || matrix.test_task == 'test'}}
 
       - name: test-all
         timeout-minutes: 45
-        shell: cmd
         run: |
+          # Actions uses UTF8, causes test failures, similar to normal OS setup
+          chcp.com 437
           make ${{ StartsWith(matrix.test_task, 'test/') && matrix.test_task || 'test-all' }}
         env:
           RUBY_TESTOPTS: >-
             --retry --job-status=normal --show-skip --timeout-scale=1.5
             ${{ matrix.test-all-opts }}
-            ${{ env.TESTS }}
           BUNDLER_VERSION:
-        if: ${{ matrix.test_task == 'check' || matrix.test_task == 'test-all' || StartsWith(matrix.test_task, 'test/') }}
+        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' }}
-        shell: cmd
-        if: ${{ matrix.test_task == 'check' || matrix.test_task == 'test-spec' || StartsWith(matrix.test_task, 'spec/') }}
+        if: ${{matrix.test_task == 'check' || matrix.test_task == 'test-spec' || StartsWith(matrix.test_task, 'spec/')}}
 
-      - uses: ./src/.github/actions/slack
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
         with:
-          label: ${{ matrix.msystem }} / ${{ matrix.test_task }}
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ github.workflow }} ${{ matrix.msystem }} / ${{ matrix.test_task }}",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
-        if: ${{ failure() }}
+        if: ${{ failure() && github.event_name == 'push' }}
 
 defaults:
   run:
diff --git a/.github/workflows/mjit-bindgen.yml b/.github/workflows/mjit-bindgen.yml
new file mode 100644
index 0000000000..26f8a1b2aa
--- /dev/null
+++ b/.github/workflows/mjit-bindgen.yml
@@ -0,0 +1,104 @@
+name: MJIT bindgen
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+  merge_group:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+
+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:
+          - task: mjit-bindgen
+      fail-fast: false
+    runs-on: ubuntu-22.04
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
+    steps:
+      - run: mkdir build
+        working-directory:
+      - name: Set ENV
+        run: |
+          echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
+      - 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 libreadline6-dev \
+          zlib1g-dev libncurses5-dev libffi-dev \
+          libclang1-14 \
+          bison autoconf
+          sudo apt-get install -q -y pkg-config || :
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@13e7a03dc3ac6c3798f4570bfead2aed4d96abfb # v1.244.0
+        with:
+          ruby-version: '3.1'
+      - name: git config
+        run: |
+          git config --global advice.detachedHead 0
+          git config --global init.defaultBranch garbage
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: src
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+        with:
+          path: src/.downloaded-cache
+          key: downloaded-cache
+      - name: Fixed world writable dirs
+        run: |
+          chmod -v go-w $HOME $HOME/.config
+          sudo chmod -R go-w /usr/share
+          sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v go-w $d; done' || :
+      - run: ./autogen.sh
+        working-directory: src
+      - name: Run configure
+        run: ../src/configure -C --disable-install-doc --prefix=$(pwd)/install --enable-yjit=dev_nodebug
+      - run: make incs
+      - run: make
+      - run: make install
+      - run: make ${{ matrix.task }}
+      - run: git diff --exit-code
+        working-directory: src
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
+        with:
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ matrix.os }} / ${{ matrix.test_task }}${{ matrix.configure }}",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() && github.event_name == 'push' }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/mjit.yml b/.github/workflows/mjit.yml
new file mode 100644
index 0000000000..6f7181489a
--- /dev/null
+++ b/.github/workflows/mjit.yml
@@ -0,0 +1,113 @@
+name: MJIT
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '**.[1-8]'
+      - '**.ronn'
+  merge_group:
+    paths-ignore:
+      - 'doc/**'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
+      - '**.[1-8]'
+      - '**.ronn'
+
+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:
+        test_task: [check] # to make job names consistent
+        mjit_opts: [--mjit-wait]
+      fail-fast: false
+    runs-on: ubuntu-latest
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
+    env:
+      TESTOPTS: '-q --tty=no'
+      RUN_OPTS: '--disable-gems ${{ matrix.mjit_opts }} --mjit-debug=-ggdb3'
+      GITPULLOPTIONS: --no-tags origin ${{github.ref}}
+    steps:
+      - run: mkdir build
+        working-directory:
+      - 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 libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev bison autoconf ruby
+      - name: git config
+        run: |
+          git config --global advice.detachedHead 0
+          git config --global init.defaultBranch garbage
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: src
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+        with:
+          path: src/.downloaded-cache
+          key: downloaded-cache
+      - name: Fixed world writable dirs
+        run: |
+          chmod -v go-w $HOME $HOME/.config
+          sudo chmod -R go-w /usr/share
+          sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v go-w $d; done' || :
+      - name: Set ENV
+        run: |
+          echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
+      - run: ./autogen.sh
+        working-directory: src
+      - name: Run configure
+        run: ../src/configure -C --disable-install-doc cppflags=-DVM_CHECK_MODE
+      - run: make incs
+      - run: make
+      - run: sudo make -s install
+      - name: Run test
+        run: |
+          unset GNUMAKEFLAGS
+          make -s test RUN_OPTS="$RUN_OPTS"
+        timeout-minutes: 60
+      # - name: Run test-all
+      #   run: |
+      #     ulimit -c unlimited
+      #     make -s test-all RUN_OPTS="$RUN_OPTS"
+      #   timeout-minutes: 60
+      - name: Run test-spec
+        run: |
+          unset GNUMAKEFLAGS
+          make -s test-spec RUN_OPTS="$RUN_OPTS"
+        timeout-minutes: 60
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
+        with:
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ github.workflow }} / ${{ matrix.test_task }} ${{ matrix.mjit_opts }}",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
+        if: ${{ failure() && github.event_name == 'push' }}
+
+defaults:
+  run:
+    working-directory: build
diff --git a/.github/workflows/parsey.yml b/.github/workflows/parsey.yml
deleted file mode 100644
index 7bfcf27166..0000000000
--- a/.github/workflows/parsey.yml
+++ /dev/null
@@ -1,94 +0,0 @@
-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.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with:
-          sparse-checkout-cone-mode: false
-          sparse-checkout: /.github
-
-      - uses: ./.github/actions/setup/ubuntu
-
-      - 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
-
-      - run: make
-
-      - name: make ${{ matrix.test_task }}
-        run: make -s ${{ matrix.test_task }} RUN_OPTS="$RUN_OPTS" SPECOPTS="$SPECOPTS"
-        timeout-minutes: ${{ matrix.timeout }}
-        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: 'typeprof'
-
-      - 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/pr-playground.yml b/.github/workflows/pr-playground.yml
deleted file mode 100644
index cc06006142..0000000000
--- a/.github/workflows/pr-playground.yml
+++ /dev/null
@@ -1,127 +0,0 @@
-name: Post Playground link to PR
-on:
-  pull_request_target:
-    types: [labeled]
-  workflow_run:
-    workflows: ["WebAssembly"]
-    types: [completed]
-
-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@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
-        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: ${comment}`);
-            await postComment(comment, pr);
-
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
deleted file mode 100644
index 5534e3defe..0000000000
--- a/.github/workflows/release.yml
+++ /dev/null
@@ -1,108 +0,0 @@
-name: Publish Ruby packages
-
-on:
-  repository_dispatch:
-    types:
-      - release
-  workflow_dispatch:
-    inputs:
-      version:
-        description: 'Version of the Ruby package to release'
-        required: true
-        default: '3.3.4'
-
-jobs:
-  release:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: 3.3.4
-
-      - name: Store Ruby version
-        run: |
-          echo "RUBY_VERSION=${{ github.event.client_payload.version || github.event.inputs.version }}" >> $GITHUB_ENV
-
-      - name: Store ABI version
-        run: echo "ABI_VERSION=$(echo ${{ env.RUBY_VERSION }} | cut -d '.' -f 1-2)" >> $GITHUB_ENV
-
-      - name: Copy draft package `/tmp` to `/pub` directory
-        run: tool/release.sh ${{ env.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: ${{ secrets.FASTLY_PURGE_TOKEN }}" \
-            https://api.fastly.com/purge/cache.ruby-lang.org/pub/ruby/${{ env.ABI_VERSION }}/ruby-${{ env.RUBY_VERSION }}.tar.gz
-          curl -X POST \
-            -H "Fastly-Key: ${{ secrets.FASTLY_PURGE_TOKEN }}" \
-            https://api.fastly.com/purge/cache.ruby-lang.org/pub/ruby/${{ env.ABI_VERSION }}/ruby-${{ env.RUBY_VERSION }}.tar.xz
-          curl -X POST \
-            -H "Fastly-Key: ${{ secrets.FASTLY_PURGE_TOKEN }}" \
-            https://api.fastly.com/purge/cache.ruby-lang.org/pub/ruby/${{ env.ABI_VERSION }}/ruby-${{ env.RUBY_VERSION }}.zip
-
-      - name: Create a release on GitHub
-        run: |
-          RELEASE_TAG=$(echo v${{ env.RUBY_VERSION }} | sed 's/\./_/g')
-          echo $RELEASE_TAG
-          PREVIOUS_RELEASE_TAG=$(echo $RELEASE_TAG | awk 'BEGIN {FS="_"; OFS="_"}{ $NF=$NF-1; print }')
-          echo $PREVIOUS_RELEASE_TAG
-          tool/gen-github-release.rb $PREVIOUS_RELEASE_TAG $RELEASE_TAG --no-dry-run
-        env:
-          GITHUB_TOKEN: ${{ secrets.MATZBOT_GITHUB_WORKFLOW_TOKEN }}
-
-      - name: Update versions index
-        run: |
-          curl -L -X POST \
-            -H "Authorization: Bearer ${{ secrets.MATZBOT_GITHUB_WORKFLOW_TOKEN }}" \
-            -H "Accept: application/vnd.github+json" \
-            -H "X-GitHub-Api-Version: 2022-11-28" \
-            https://api.github.com/repos/ruby/actions/dispatches \
-            -d '{"event_type": "update_index"}'
-
-      - name: Set latest flag for Ruby 3.3
-        if: contains(${{ env.RUBY_VERSION }}, '3.3.')
-        run: |
-          echo "LATEST=true" >> $GITHUB_ENV
-
-      - name: Build and push Docker images
-        run: |
-          curl -L -X POST \
-            -H "Authorization: Bearer ${{ secrets.MATZBOT_GITHUB_WORKFLOW_TOKEN }}" \
-            -H "Accept: application/vnd.github+json" \
-            -H "X-GitHub-Api-Version: 2022-11-28" \
-            https://api.github.com/repos/ruby/docker-images/dispatches \
-            -d '{"event_type": "build", "client_payload": {"ruby_version": "${{ env.RUBY_VERSION }}", "arch": "amd64", "latest": "${{ env.LATEST }}"}}'
-
-      - name: Build snapcraft packages
-        run: |
-          curl -L -X POST \
-            -H "Authorization: Bearer ${{ secrets.MATZBOT_GITHUB_WORKFLOW_TOKEN }}" \
-            -H "Accept: application/vnd.github+json" \
-            -H "X-GitHub-Api-Version: 2022-11-28" \
-            https://api.github.com/repos/ruby/snap.ruby/dispatches \
-            -d '{"event_type": "build", "client_payload": {"ruby_version": "${{ env.RUBY_VERSION }}"}}'
-
-      - name: Update ruby-build definition
-        run: |
-          curl -L -X POST \
-            -H "Authorization: Bearer ${{ secrets.RUBY_BUILD_WORKFLOW_TOKEN }}" \
-            -H "Accept: application/vnd.github+json" \
-            -H "X-GitHub-Api-Version: 2022-11-28" \
-            https://api.github.com/repos/rbenv/ruby-build/dispatches \
-            -d '{"event_type": "update-ruby", "client_payload": {"ruby_version": "${{ env.RUBY_VERSION }}", "openssl_version": "3.0.15"}}'
-
-      - 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/rjit-bindgen.yml b/.github/workflows/rjit-bindgen.yml
deleted file mode 100644
index 65ef44ee8d..0000000000
--- a/.github/workflows/rjit-bindgen.yml
+++ /dev/null
@@ -1,86 +0,0 @@
-name: RJIT bindgen
-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:
-          - task: rjit-bindgen
-      fail-fast: false
-
-    runs-on: ubuntu-20.04
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
-    steps:
-      - name: Set up Ruby
-        uses: ruby/setup-ruby@a6e6f86333f0a2523ece813039b8b4be04560854 # v1.190.0
-        with:
-          ruby-version: '3.1'
-
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with:
-          sparse-checkout-cone-mode: false
-          sparse-checkout: /.github
-
-      - uses: ./.github/actions/setup/ubuntu
-
-      - uses: ./.github/actions/setup/directories
-        with:
-          srcdir: src
-          builddir: build
-          makeup: true
-
-      - name: Run configure
-        run: ../src/configure -C --disable-install-doc --prefix=$(pwd)/install --enable-yjit=dev_nodebug
-
-      - run: make
-
-      - run: make install
-
-      - run: make ${{ matrix.task }}
-
-      - run: git diff --exit-code
-        working-directory: src
-
-      - 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/rjit.yml b/.github/workflows/rjit.yml
deleted file mode 100644
index 9cec3bcd86..0000000000
--- a/.github/workflows/rjit.yml
+++ /dev/null
@@ -1,130 +0,0 @@
-name: RJIT
-on:
-  push:
-    paths-ignore:
-      - 'doc/**'
-      - '**.md'
-      - '**.rdoc'
-      - '**/.document'
-      - '**.[1-8]'
-      - '**.ronn'
-      - '.*.yml'
-  pull_request:
-    paths-ignore:
-      - 'doc/**'
-      - '**.md'
-      - '**.rdoc'
-      - '**/.document'
-      - '**.[1-8]'
-      - '**.ronn'
-      - '.*.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:
-        # main variables included in the job name
-        test_task: [check]
-        run_opts: ['--rjit-call-threshold=1']
-        arch: ['']
-      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.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with:
-          sparse-checkout-cone-mode: false
-          sparse-checkout: /.github
-
-      - uses: ./.github/actions/setup/ubuntu
-
-      - 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: Run configure
-        env:
-          arch: ${{ matrix.arch }}
-        run: >-
-          $SETARCH ../src/configure -C --disable-install-doc cppflags=-DRUBY_DEBUG
-          ${arch:+--target=$arch-$OSTYPE --host=$arch-$OSTYPE}
-
-      - run: $SETARCH make
-
-      - name: Set up Launchable
-        uses: ./.github/actions/launchable/setup
-        with:
-          os: ubuntu-22.04
-          test-task: test
-          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
-          builddir: build
-          srcdir: src
-          launchable-workspace: ruby-make-btest
-          test-opts: ${{ matrix.run_opts }}
-        continue-on-error: true
-
-      - name: make test
-        run: |
-          $SETARCH make -s test RUN_OPTS="$RUN_OPTS"
-        timeout-minutes: 30
-        env:
-          GNUMAKEFLAGS: ''
-          RUBY_TESTOPTS: >-
-            ${{ env.TESTS }}
-            --tty=no
-          RUN_OPTS: ${{ matrix.run_opts }}
-
-      - name: make test-all
-        run: |
-          $SETARCH make -s test-all RUN_OPTS="$RUN_OPTS"
-        timeout-minutes: 60
-        env:
-          GNUMAKEFLAGS: ''
-          RUBY_TESTOPTS: '-q --tty=no'
-          RUN_OPTS: ${{ matrix.run_opts }}
-
-      - name: make test-spec
-        run: |
-          $SETARCH make -s test-spec RUN_OPTS="$RUN_OPTS"
-        timeout-minutes: 10
-        env:
-          GNUMAKEFLAGS: ''
-          RUN_OPTS: ${{ matrix.run_opts }}
-
-      - 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/scorecards.yml b/.github/workflows/scorecards.yml
index 40f86480c2..c12a95362d 100644
--- a/.github/workflows/scorecards.yml
+++ b/.github/workflows/scorecards.yml
@@ -11,8 +11,8 @@ on:
   # https://github.com/ossf/scorecard/blob/main/docs/checks.md#maintained
   schedule:
     - cron: '22 4 * * 2'
-  # push:
-  #   branches: [ "master" ]
+  push:
+    branches: [ "master" ]
 
 # Declare default permissions as read only.
 permissions: read-all
@@ -31,13 +31,13 @@ jobs:
       # actions: read
 
     steps:
-      - name: 'Checkout code'
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+      - name: "Checkout code"
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
 
-      - name: 'Run analysis'
-        uses: ossf/scorecard-action@62b2cac7ed8198b15735ed49ab1e5cf35480ba46 # v2.4.0
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@ea651e62978af7915d09fe2e282747c798bf2dab # v2.4.1
         with:
           results_file: results.sarif
           results_format: sarif
@@ -58,15 +58,15 @@ jobs:
 
       # 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@0b7f8abb1508181956e8e162db84b466c27e18ce # v3.1.2
-      #   with:
-      #     name: SARIF file
-      #     path: results.sarif
-      #     retention-days: 5
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
 
       # Upload the results to GitHub's code scanning dashboard.
-      - name: 'Upload to code-scanning'
-        uses: github/codeql-action/upload-sarif@6db8d6351fd0be61f9ed8ebd12ccd35dcec51fea # v3.26.11
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@959cbb7472c4d4ad70cdfe6f4976053fe48ab394 # v2.1.27
         with:
           sarif_file: results.sarif
diff --git a/.github/workflows/spec_guards.yml b/.github/workflows/spec_guards.yml
index 86abe44034..4521195a2b 100644
--- a/.github/workflows/spec_guards.yml
+++ b/.github/workflows/spec_guards.yml
@@ -22,7 +22,7 @@ jobs:
   rubyspec:
     name: Rubyspec
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
 
     if: >-
       ${{!(false
@@ -31,7 +31,7 @@ jobs:
       || contains(github.event.pull_request.title, '[DOC]')
       || contains(github.event.pull_request.title, 'Document')
       || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
+      || (github.event_name == 'push' && github.actor == 'dependabot[bot]')
       )}}
 
     strategy:
@@ -39,15 +39,13 @@ jobs:
         # 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-3.0
           - ruby-3.1
           - ruby-3.2
-          - ruby-3.3
 
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
-      - uses: ruby/setup-ruby@a6e6f86333f0a2523ece813039b8b4be04560854 # v1.190.0
+      - uses: ruby/setup-ruby@13e7a03dc3ac6c3798f4570bfead2aed4d96abfb # v1.244.0
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler: none
@@ -58,9 +56,16 @@ jobs:
         working-directory: spec/ruby
         env:
           CHECK_LEAKS: true
-
-      - uses: ./.github/actions/slack
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
         with:
-          label: ${{ matrix.ruby }}
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ github.workflow }} / rubyspec @ ${{ matrix.ruby }}",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
         if: ${{ failure() }}
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index e829596165..4fbca1170e 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -3,15 +3,24 @@ on:
   push:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/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
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
   merge_group:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
 
 concurrency:
   group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
@@ -24,151 +33,113 @@ jobs:
   make:
     strategy:
       matrix:
+        # main variables included in the job name
+        test_task: [check]
+        configure: [cppflags=-DRUBY_DEBUG] # default to use more assertions
+        arch: ['']
+        # specify all jobs with `include` to avoid testing duplicated things
         include:
           - test_task: check
-            configure: 'cppflags=-DVM_CHECK_MODE'
           - test_task: check
             arch: i686
+            configure: '' # test without -DRUBY_DEBUG as well
           - test_task: check
-            configure: '--disable-yjit'
-          - test_task: check
-            configure: '--enable-shared --enable-load-relative'
-          - test_task: check
-            shared_gc: true
-            configure: '--with-shared-gc=/home/runner/ruby_gc'
+            configure: "--enable-shared --enable-load-relative"
+          - test_task: test-all TESTS=--repeat-count=2
           - test_task: test-bundler-parallel
-            timeout: 50
           - test_task: test-bundled-gems
-          - test_task: check
-            os: ubuntu-20.04
-          - test_task: check
-            os: ubuntu-24.04
       fail-fast: false
-
     env:
-      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      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.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
+      SETARCH: ${{ matrix.arch && format('setarch {0}', matrix.arch) }}
+    runs-on: ubuntu-22.04
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with:
-          sparse-checkout-cone-mode: false
-          sparse-checkout: /.github
-
-      - uses: ./.github/actions/setup/ubuntu
-        with:
-          arch: ${{ matrix.arch }}
-
-      - uses: ruby/setup-ruby@a6e6f86333f0a2523ece813039b8b4be04560854 # v1.190.0
+      - run: mkdir build
+        working-directory:
+      - name: Set ENV
+        run: |
+          echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
+      - name: Install libraries
+        env:
+          arch: ${{matrix.arch}}
+        run: |
+          set -x
+          arch=${arch:+:${arch/i[3-6]86/i386}}
+          ${arch:+sudo dpkg --add-architecture ${arch#:}}
+          sudo apt-get update -q || :
+          sudo apt-get install --no-install-recommends -q -y \
+          ${arch:+cross}build-essential${arch/:/-} \
+          libssl-dev${arch} libyaml-dev${arch} libreadline6-dev${arch} \
+          zlib1g-dev${arch} libncurses5-dev${arch} libffi-dev${arch} \
+          bison autoconf ruby
+          sudo apt-get install -q -y pkg-config${arch} || :
+      - name: git config
+        run: |
+          git config --global advice.detachedHead 0
+          git config --global init.defaultBranch garbage
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
-          ruby-version: '3.0'
-          bundler: none
-
-      - uses: ./.github/actions/setup/directories
+          path: src
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         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
-
+          path: src/.downloaded-cache
+          key: downloaded-cache
+      - name: Fixed world writable dirs
+        run: |
+          chmod -v go-w $HOME $HOME/.config
+          sudo chmod -R go-w /usr/share
+          sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v go-w $d; done' || :
+      - run: ./autogen.sh
+        working-directory: src
       - name: Run configure
         env:
-          arch: ${{ matrix.arch }}
-          configure: ${{ matrix.configure }}
+          arch: ${{matrix.arch}}
         run: >-
-          $SETARCH ../src/configure -C --disable-install-doc ${configure:-cppflags=-DRUBY_DEBUG}
+          $SETARCH ../src/configure -C --disable-install-doc ${{ matrix.configure }}
           ${arch:+--target=$arch-$OSTYPE --host=$arch-$OSTYPE}
-
+      - run: $SETARCH make incs
       - run: $SETARCH make prepare-gems
         if: ${{ matrix.test_task == 'test-bundled-gems' }}
-
-      - name: Build shared GC
-        run: |
-          echo "RUBY_GC_LIBRARY=librubygc.default.so" >> $GITHUB_ENV
-          make shared-gc SHARED_GC=default
-        if: ${{ matrix.shared_gc }}
-
       - run: $SETARCH make
-
-      - run: |
-          $SETARCH make golf
-          case "${{ matrix.configure }}" in
-          *'--enable-shared'*)
-            $SETARCH make runnable
-            ./bin/goruby -veh
-            ;;
-          *)
-            ./goruby -veh
-            ;;
-          esac
-
-      - name: Set test options for skipped tests
+      - run: $SETARCH make leaked-globals
+        if: ${{ matrix.test_task == 'check' }}
+      - name: Create dummy files in build dir
         run: |
-          set -x
-          TESTS="$(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
-        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
-
+          $SETARCH ./miniruby -e '(("a".."z").to_a+("A".."Z").to_a+("0".."9").to_a+%w[foo bar test zzz]).each{|basename|File.write("#{basename}.rb", "raise %(do not load #{basename}.rb)")}'
+        if: ${{ matrix.test_task == 'check' }}
       - name: make ${{ matrix.test_task }}
-        run: >-
-          $SETARCH make -s ${{ matrix.test_task }}
-          ${TESTS:+TESTS="$TESTS"}
-          ${{ !contains(matrix.test_task, 'bundle') && 'RUBYOPT=-w' || '' }}
-        timeout-minutes: ${{ matrix.timeout || 40 }}
+        run: |
+          $SETARCH make -s ${{ matrix.test_task }} ${TESTS:+TESTS=`echo "$TESTS" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|'`}
+        timeout-minutes: 40
         env:
-          RUBY_TESTOPTS: '-q --tty=no'
-          TEST_BUNDLED_GEMS_ALLOW_FAILURES: 'typeprof'
-          PRECHECK_BUNDLED_GEMS: 'no'
-
+          RUBY_TESTOPTS: "-q --tty=no"
+          TESTS: ${{ matrix.test_task == 'check' && matrix.skipped_tests || '' }}
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ""
+          PRECHECK_BUNDLED_GEMS: "no"
       - name: make skipped tests
         run: |
-          $SETARCH make -s test-all TESTS="${TESTS//-n!\//-n/}"
+          $SETARCH make -s test-all TESTS=`echo "$TESTS" | sed 's| |$$/ -n/|g;s|^|-n/|;s|$|$$/|'`
         env:
-          GNUMAKEFLAGS: ''
-          RUBY_TESTOPTS: '-v --tty=no'
-        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+          GNUMAKEFLAGS: ""
+          RUBY_TESTOPTS: "-v --tty=no"
+          TESTS: ${{ matrix.skipped_tests }}
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests != '' }}
         continue-on-error: ${{ matrix.continue-on-skipped_tests || false }}
-
-      - uses: ./.github/actions/slack
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
         with:
-          label: ${{ matrix.test_task }} ${{ matrix.configure }}${{ matrix.arch }}
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ github.workflow }} / ${{ matrix.test_task }} ${{ matrix.configure }}${{ matrix.arch }}",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
           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') }}
+        if: ${{ failure() && github.event_name == 'push' }}
 
 defaults:
   run:
diff --git a/.github/workflows/wasm.yml b/.github/workflows/wasm.yml
index dac107c57b..27920b5821 100644
--- a/.github/workflows/wasm.yml
+++ b/.github/workflows/wasm.yml
@@ -3,26 +3,30 @@ on:
   push:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/man'
       - '**.md'
       - '**.rdoc'
       - '**/.document'
-      - '.*.yml'
   pull_request:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/man'
       - '**.md'
       - '**.rdoc'
       - '**/.document'
-      - '.*.yml'
   merge_group:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
 
 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
+permissions:  # added using https://github.com/step-security/secure-workflows
   contents: read
 
 jobs:
@@ -31,52 +35,38 @@ jobs:
       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' }
+#         - { 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' }
+#         - { 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: 20
+      GITPULLOPTIONS: --no-tags origin ${{github.ref}}
+      WASI_SDK_VERSION_MAJOR: 14
       WASI_SDK_VERSION_MINOR: 0
-      BINARYEN_VERSION: 113
-      WASMTIME_VERSION: v15.0.0
-
-    runs-on: ubuntu-20.04
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
+      BINARYEN_VERSION: 109
+      WASMTIME_VERSION: v0.33.0
+    runs-on: ubuntu-22.04
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with:
-          sparse-checkout-cone-mode: false
-          sparse-checkout: /.github
-
-      - uses: ./.github/actions/setup/directories
+      - run: mkdir build
+        working-directory:
+      - name: git config
+        run: |
+          git config --global advice.detachedHead 0
+          git config --global init.defaultBranch garbage
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
-          srcdir: src
-          builddir: build
-          makeup: true
-
+          path: src
       - 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
+          sudo apt-get install --no-install-recommends -q -y ruby bison make autoconf git wget
 
           wasi_sdk_deb="wasi-sdk_${WASI_SDK_VERSION_MAJOR}.${WASI_SDK_VERSION_MINOR}_amd64.deb"
           wget "https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-${WASI_SDK_VERSION_MAJOR}/${wasi_sdk_deb}"
@@ -95,32 +85,29 @@ jobs:
           wget -O - "$binaryen_url" | tar xfz -
           sudo ln -fs "$PWD/binaryen-version_${BINARYEN_VERSION}/bin/wasm-opt" /usr/local/bin/wasm-opt
         working-directory: src
-
       - name: Set ENV
         run: |
+          echo "MAKEFLAGS=-j$((1 + $(sysctl -n hw.activecpu)))" >> $GITHUB_ENV
           echo "WASI_SDK_PATH=/opt/wasi-sdk" >> $GITHUB_ENV
+      - run: ./autogen.sh
+        working-directory: src
 
-      - uses: ruby/setup-ruby@a6e6f86333f0a2523ece813039b8b4be04560854 # v1.190.0
+      - uses: ruby/setup-ruby@13e7a03dc3ac6c3798f4570bfead2aed4d96abfb # v1.244.0
         with:
           ruby-version: '3.0'
           bundler: none
 
-      - name: Build baseruby
+      - name: Download config.guess with wasi version
         run: |
-          set -ex
-          mkdir ../baseruby
-          pushd ../baseruby
-          ../src/configure --prefix=$PWD/install
-          make
-          make install
+          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=$PWD/../baseruby/install/bin/ruby \
             --with-static-linked-ext \
-            --with-ext=cgi/escape,continuation,coverage,date,digest/bubblebabble,digest,digest/md5,digest/rmd160,digest/sha1,digest/sha2,etc,fcntl,json,json/generator,json/parser,objspace,pathname,rbconfig/sizeof,ripper,stringio,strscan,monitor \
             LDFLAGS=" \
               -Xlinker --stack-first \
               -Xlinker -z -Xlinker stack-size=16777216 \
@@ -131,44 +118,28 @@ jobs:
 
       # 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@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4.4.0
-        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
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
         with:
-          label: ${{ matrix.entry.name }}
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ github.workflow }} / ${{ matrix.name }}",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
           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@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4.4.0
-        if: ${{ github.event_name == 'pull_request' }}
-        with:
-          name: github-pr-info
-          path: ${{ github.workspace }}/github-pr-info.txt
+        if: ${{ failure() && github.event_name == 'push' }}
 
 defaults:
   run:
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index e821883157..c2bd4881c2 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -3,15 +3,24 @@ on:
   push:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/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
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
   merge_group:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
 
 concurrency:
   group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
@@ -25,190 +34,114 @@ jobs:
     strategy:
       matrix:
         include:
-          - vc: 2015
-            vs: 2019
-            vcvars: '10.0.14393.0 -vcvars_ver=14.0' # The oldest Windows 10 SDK w/ VC++ 2015 toolset (v140)
-          - vs: 2019
           - vs: 2022
+            vcvers: -vcvars_ver=14.2
       fail-fast: false
-
-    runs-on: windows-${{ matrix.vs < 2022 && '2019' || matrix.vs }}
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
-    name: VisualStudio ${{ matrix.vc || matrix.vs }}
-
+    runs-on: windows-${{ matrix.vs }}
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
+    name: VisualStudio ${{ matrix.vs }}
     env:
-      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
-      OS_VER: windows-${{ matrix.vs < 2022 && '2019' || matrix.vs }}
-      VCPKG_DEFAULT_TRIPLET: ${{ matrix.target || 'x64' }}-windows
-
+      GITPULLOPTIONS: --no-tags origin ${{github.ref}}
+      PATCH: C:\msys64\usr\bin\patch.exe
+      OS_VER: windows-${{ matrix.vs }}
     steps:
       - run: md build
         working-directory:
-
-      - name: find tools
-        id: find-tools
-        run: |
-          ::- find needed tools
-          set NEEDS=
-          for %%I in (%NEEDED_TOOLS%) do if "%%~$PATH:I" == "" (
-            call set NEEDS=%%NEEDS%% %%~nI
-          ) else (
-            echo %%I: %%~$PATH:I
-          )
-          echo.needs=%NEEDS%>>%GITHUB_OUTPUT%
-          if "%NEEDS%" == "" (
-            echo [debug] All needed tools found
-          ) else (
-            echo [warning^]Needs%NEEDS%
-          )
-        env:
-          NEEDED_TOOLS: >-
-            patch.exe
-
-      - uses: msys2/setup-msys2@d40200dc2db4c351366b048a9565ad82919e1c24 # v2
+      - uses: msys2/setup-msys2@61f9e5e925871ba6c9e3e8da24ede83ea27fa91f # v2.27.0
         id: setup-msys2
         with:
           update: true
-          install: >-
-            ${{ steps.find-tools.outputs.needs }}
-        if: ${{ steps.find-tools.outputs.needs != '' }}
-
-      - uses: ruby/setup-ruby@a6e6f86333f0a2523ece813039b8b4be04560854 # v1.190.0
-        with:
-          ruby-version: '3.0'
-          bundler: none
-          windows-toolchain: none
-
-      - name: Export GitHub Actions cache environment variables
-        uses: actions/github-script@v7
+          install: bison patch
+      - name: patch path
+        shell: msys2 {0}
+        run: echo PATCH=$(cygpath -wa $(command -v patch)) >> $GITHUB_ENV
+        if: ${{ steps.setup-msys2.outcome == 'success' }}
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
-          script: |
-            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
-            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');
-
-      - name: Install libraries with scoop
+          path: C:\vcpkg\installed
+          key: ${{ runner.os }}-vcpkg-installed-windows-${{ matrix.vs }}-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-vcpkg-installed-windows-${{ matrix.vs }}-
+            ${{ runner.os }}-vcpkg-installed-windows-
+      - name: Install libraries with vcpkg
         run: |
           iex "& {$(irm get.scoop.sh)} -RunAsAdmin"
           Join-Path (Resolve-Path ~).Path "scoop\shims" >> $Env:GITHUB_PATH
-        shell: pwsh
-
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+          scoop install cmake@3.31.6
+          vcpkg --triplet x64-windows install libffi libyaml openssl readline zlib
+        shell:
+          pwsh
+      - name: git config
+        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
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
-          sparse-checkout-cone-mode: false
-          sparse-checkout: /.github
-
-      - uses: ./.github/actions/setup/directories
+          path: src
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
-          srcdir: src
-          builddir: build
-
+          path: src/.downloaded-cache
+          key: downloaded-cache
       - 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
+        # msys2/setup-msys2 installs MSYS2 to D:/a/_temp/msys64/usr/bin
         run: |
-          ::- Set up VC ${{ matrix.vc || matrix.vs }}
-          set vswhere="%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe"
-          for /f "delims=;" %%I in ('%vswhere% -latest -property installationPath') do (
-            set VCVARS="%%I\VC\Auxiliary\Build\vcvars64.bat"
-          )
-          set VCVARS
+          set Path=D:/a/_temp/msys64/usr/bin;%Path%
+          if not "%VCVARS%" == "" goto :vcset
+            set VCVARS="C:\Program Files (x86)\Microsoft Visual Studio\${{ matrix.vs }}\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
+            if not exist %VCVARS% set VCVARS="C:\Program Files\Microsoft Visual Studio\${{ matrix.vs }}\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
+          :vcset
           set | C:\msys64\usr\bin\sort > old.env
-          call %VCVARS% ${{ matrix.vcvars || '' }}
-          nmake -f nul
+          call %VCVARS% ${{ matrix.vcvers || ''}}
           set TMP=%USERPROFILE%\AppData\Local\Temp
           set TEMP=%USERPROFILE%\AppData\Local\Temp
-          set MAKEFLAGS=l
           set /a TEST_JOBS=(15 * %NUMBER_OF_PROCESSORS% / 10) > nul
           set | C:\msys64\usr\bin\sort > new.env
           C:\msys64\usr\bin\comm -13 old.env new.env >> %GITHUB_ENV%
           del *.env
-
-      - name: baseruby version
-        run: ruby -v
-
       - name: compiler version
         run: cl
-
-      - name: volume info
-        run: Get-Volume
-        shell: pwsh
-
-      - name: Install libraries with vcpkg
+      - name: link libraries
         run: |
-          vcpkg install
-        working-directory: src
-        env:
-          VCPKG_BINARY_SOURCES: "clear;x-gha,readwrite"
-
-      # TODO: We should use `../src` instead of `D:/a/ruby/ruby/src`
+          for %%I in (C:\vcpkg\installed\x64-windows\bin\*.dll) do (
+            if not %%~nI == readline mklink %%~nxI %%I
+          )
+          for %%I in (libcrypto-1_1-x64 libssl-1_1-x64) do (
+            ren c:\Windows\System32\%%I.dll %%I.dll_
+          )
       - name: Configure
         run: >-
           ../src/win32/configure.bat --disable-install-doc
-          --with-opt-dir=D:/a/ruby/ruby/src/vcpkg_installed/%VCPKG_DEFAULT_TRIPLET%
-
-      - run: nmake prepare-vcpkg
-
+          --with-opt-dir=C:/vcpkg/installed/x64-windows
       - run: nmake incs
-
       - run: nmake extract-extlibs
-
-      # On all other platforms, test-spec depending on extract-gems (in common.mk) is enough.
-      # But not for this Visual Studio workflow. So here we extract gems before building.
-      - run: nmake extract-gems
-
       - run: nmake
-
+        env:
+          YACC: bison.exe
       - run: nmake test
         timeout-minutes: 5
-
       - run: nmake test-spec
         timeout-minutes: 10
-
-      - name: Set up Launchable
-        uses: ./.github/actions/launchable/setup
-        with:
-          os: windows-${{ matrix.vs < 2022 && '2019' || matrix.vs }}
-          test-task: test-all
-          # If we support a new test task, we need to change this test-opts.
-          test-opts: -j${{ env.TEST_JOBS || 4 }} --job-status=normal
-          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
-          builddir: build
-          srcdir: src
-        continue-on-error: true
-
       - run: nmake test-all
         env:
-          RUBY_TESTOPTS: >-
-            -j${{ env.TEST_JOBS || 4 }}
-            --job-status=normal
+          RUBY_TESTOPTS: -j${{env.TEST_JOBS}} --job-status=normal
         timeout-minutes: 60
-
-      - uses: ./.github/actions/slack
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
         with:
-          label: VS${{ matrix.vc || matrix.vs }} / ${{ matrix.test_task || 'check' }}
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "VS${{ matrix.vs }} / ${{ matrix.test_task || 'check' }}",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
           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-latest
-    needs: [make]
-    steps:
-      - run: exit 1
-        working-directory:
-        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+        if: ${{ failure() && github.event_name == 'push' }}
 
 defaults:
   run:
diff --git a/.github/workflows/yjit-macos.yml b/.github/workflows/yjit-macos.yml
deleted file mode 100644
index 9c1e75a95d..0000000000
--- a/.github/workflows/yjit-macos.yml
+++ /dev/null
@@ -1,170 +0,0 @@
-name: YJIT macOS Arm64
-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
-
-    runs-on: macos-14
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-
-      - 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-14
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with:
-          sparse-checkout-cone-mode: false
-          sparse-checkout: /.github
-
-      - 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: Enable YJIT through ENV
-        run: echo "RUBY_YJIT_ENABLE=1" >> $GITHUB_ENV
-
-      - name: Set test options for skipped tests
-        run: |
-          set -x
-          TESTS="$(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
-        uses: ./.github/actions/launchable/setup
-        with:
-          os: macos-14
-          test-opts: ${{ matrix.configure }}
-          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
-          builddir: build
-          srcdir: src
-        continue-on-error: true
-
-      - name: make ${{ matrix.test_task }}
-        run: >-
-          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: 'typeprof'
-          SYNTAX_SUGGEST_TIMEOUT: '5'
-          PRECHECK_BUNDLED_GEMS: 'no'
-        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 }}
-
-      - 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: macos-14
-    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/yjit-ubuntu.yml b/.github/workflows/yjit-ubuntu.yml
index d67ea8d49e..0b7b9046e9 100644
--- a/.github/workflows/yjit-ubuntu.yml
+++ b/.github/workflows/yjit-ubuntu.yml
@@ -3,15 +3,24 @@ on:
   push:
     paths-ignore:
       - 'doc/**'
-      - '**/man/*'
+      - '**/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
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
   merge_group:
+    paths-ignore:
+      - 'doc/**'
+      - '**/man'
+      - '**.md'
+      - '**.rdoc'
+      - '**/.document'
 
 concurrency:
   group: ${{ github.workflow }} / ${{ startsWith(github.event_name, 'pull') && github.ref_name || github.sha }}
@@ -22,58 +31,22 @@ permissions:
 
 jobs:
   cargo:
-    name: cargo test
-
+    name: Rust cargo test
     # GitHub Action's image seems to already contain a Rust 1.58.0.
-    runs-on: ubuntu-20.04
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
+    runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       # 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-20.04
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
-    steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-
-      # 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
@@ -81,140 +54,116 @@ jobs:
         include:
           - test_task: 'yjit-bindgen'
             hint: 'To fix: use patch in logs'
-            configure: '--with-gcc=clang-12 --enable-yjit=dev'
+            configure: '--with-gcc=clang-14 --enable-yjit=dev'
+            libclang_path: '/usr/lib/llvm-14/lib/libclang.so.1'
 
-          - test_task: 'check'
+          - 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'
+            rust_version: "1.58.0"
 
-          - test_task: 'check'
-            configure: '--enable-yjit=dev'
+          - 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: "check"
+            configure: "--enable-yjit=dev"
+            yjit_opts: "--yjit-call-threshold=1 --yjit-verify-ctx"
 
-          - test_task: 'test-bundled-gems'
-            configure: '--enable-yjit=dev'
+          - test_task: "test-all TESTS=--repeat-count=2"
+            configure: "--enable-yjit=dev"
 
-          - test_task: 'yjit-bench'
-            configure: '--enable-yjit=dev'
-            yjit_bench_opts: '--yjit-stats'
-            continue-on-test_task: true
+          - test_task: "test-bundled-gems"
+            configure: "--enable-yjit=dev"
 
+          - test_task: "yjit-bench"
+            configure: "--enable-yjit=dev"
+            yjit_bench_opts: "--yjit-stats"
     env:
-      GITPULLOPTIONS: --no-tags origin ${{ github.ref }}
+      GITPULLOPTIONS: --no-tags origin ${{github.ref}}
       RUN_OPTS: ${{ matrix.yjit_opts }}
       YJIT_BENCH_OPTS: ${{ matrix.yjit_bench_opts }}
-      SPECOPTS: ${{ matrix.specopts }}
       RUBY_DEBUG: ci
       BUNDLE_JOBS: 8 # for yjit-bench
-      RUST_BACKTRACE: 1
-
-    runs-on: ubuntu-20.04
-
-    if: >-
-      ${{!(false
-      || contains(github.event.head_commit.message, '[DOC]')
-      || contains(github.event.head_commit.message, 'Document')
-      || contains(github.event.pull_request.title, '[DOC]')
-      || contains(github.event.pull_request.title, 'Document')
-      || contains(github.event.pull_request.labels.*.name, 'Document')
-      || (github.event_name == 'push' && github.event.pull_request.user.login == 'dependabot[bot]')
-      )}}
-
+    runs-on: ubuntu-22.04
+    if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
-        with:
-          sparse-checkout-cone-mode: false
-          sparse-checkout: /.github
-
-      - uses: ./.github/actions/setup/ubuntu
-
-      - uses: ruby/setup-ruby@a6e6f86333f0a2523ece813039b8b4be04560854 # v1.190.0
-        with:
-          ruby-version: '3.0'
-          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
-
+      - run: mkdir build
+        working-directory:
+      - 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 libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev bison autoconf ruby
       - name: Install Rust
         if: ${{ matrix.rust_version }}
         run: rustup install ${{ matrix.rust_version }} --profile minimal
-
+      - name: git config
+        run: |
+          git config --global advice.detachedHead 0
+          git config --global init.defaultBranch garbage
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          path: src
+      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+        with:
+          path: src/.downloaded-cache
+          key: downloaded-cache
+      - name: Fixed world writable dirs
+        run: |
+          chmod -v go-w $HOME $HOME/.config
+          sudo chmod -R go-w /usr/share
+          sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v go-w $d; done' || :
+      - name: Set ENV
+        run: |
+          echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
+      - run: ./autogen.sh
+        working-directory: src
       - name: Run configure
         run: ../src/configure -C --disable-install-doc --prefix=$(pwd)/install ${{ matrix.configure }}
-
       - run: make incs
-
       - run: make prepare-gems
         if: ${{ matrix.test_task == 'test-bundled-gems' }}
-
-      - run: make
-
+      - run: make -j
+      - run: make leaked-globals
+        if: ${{ matrix.test_task == 'check' }}
+      - name: Create dummy files in build dir
+        run: |
+          ./miniruby -e '(("a".."z").to_a+("A".."Z").to_a+("0".."9").to_a+%w[foo bar test zzz]).each{|basename|File.write("#{basename}.rb", "raise %(do not load #{basename}.rb)")}'
+        if: ${{ matrix.test_task == 'check' }}
       - name: Enable YJIT through ENV
         run: echo "RUBY_YJIT_ENABLE=1" >> $GITHUB_ENV
-
       # Check that the binary was built with YJIT
       - name: Check YJIT enabled
         run: ./miniruby --yjit -v | grep "+YJIT"
-
-      - name: Set up Launchable
-        uses: ./.github/actions/launchable/setup
-        with:
-          os: ubuntu-20.04
-          test-opts: ${{ matrix.configure }}
-          launchable-token: ${{ secrets.LAUNCHABLE_TOKEN }}
-          builddir: build
-          srcdir: src
-        continue-on-error: true
-
       - name: make ${{ matrix.test_task }}
-        run: >-
-          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
+        run: make -s -j ${{ matrix.test_task }} RUN_OPTS="$RUN_OPTS" YJIT_BENCH_OPTS="$YJIT_BENCH_OPTS"
+        timeout-minutes: 60
         env:
-          RUBY_TESTOPTS: '-q --tty=no'
-          TEST_BUNDLED_GEMS_ALLOW_FAILURES: 'typeprof'
-          PRECHECK_BUNDLED_GEMS: 'no'
-          SYNTAX_SUGGEST_TIMEOUT: '5'
-          YJIT_BINDGEN_DIFF_OPTS: '--exit-code'
-        continue-on-error: ${{ matrix.continue-on-test_task || false }}
-
+          RUBY_TESTOPTS: "-q --tty=no"
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: ""
+          PRECHECK_BUNDLED_GEMS: "no"
+          LIBCLANG_PATH: ${{ matrix.libclang_path }}
+        continue-on-error: ${{ matrix.test_task == 'yjit-bench' }}
       - name: Show ${{ github.event.pull_request.base.ref }} GitHub URL for yjit-bench comparison
         run: echo "https://github.com/${BASE_REPO}/commit/${BASE_SHA}"
         env:
           BASE_REPO: ${{ github.event.pull_request.base.repo.full_name }}
           BASE_SHA: ${{ github.event.pull_request.base.sha }}
         if: ${{ matrix.test_task == 'yjit-bench' && startsWith(github.event_name, 'pull') }}
-
-      - uses: ./.github/actions/slack
+      - uses: ruby/action-slack@0bd85c72233cdbb6a0fe01d37aaeff1d21b5fce1 # v3.2.1
         with:
-          label: ${{ matrix.test_task }} ${{ matrix.configure }}
+          payload: |
+            {
+              "ci": "GitHub Actions",
+              "env": "${{ github.workflow }} / ${{ matrix.test_task }} ${{ matrix.configure }}",
+              "url": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
+              "commit": "${{ github.sha }}",
+              "branch": "${{ github.ref_name }}"
+            }
+        env:
           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') }}
+        if: ${{ failure() && github.event_name == 'push' }}
 
 defaults:
   run:
diff --git a/.gitignore b/.gitignore
index b6beba3b3e..99d32a1825 100644
--- a/.gitignore
+++ b/.gitignore
@@ -50,7 +50,6 @@ y.tab.c
 *.gcno
 *.gcov
 *.vscode
-!misc/.vscode
 lcov*.info
 
 # /
@@ -124,7 +123,6 @@ lcov*.info
 /repack
 /revision.h
 /revision.tmp
-/ripper.tmp.y
 /riscos
 /rubicon
 /ruby
@@ -138,7 +136,6 @@ lcov*.info
 /test.rb
 /test-coverage.dat
 /tmp
-/vcpkg_installed
 /transdb.h
 /uncommon.mk
 /verconf.h
@@ -167,7 +164,6 @@ lcov*.info
 
 # /coroutine/
 !/coroutine/**/*.s
-!/coroutine/**/*.S
 
 # /enc/trans/
 /enc/trans/*.c
@@ -207,10 +203,8 @@ lcov*.info
 
 # /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
@@ -232,9 +226,8 @@ lcov*.info
 # /misc/
 /misc/**/__pycache__
 
-# for `make test-bundler`
+# /spec/bundler
 /.rspec_status
-/tool/bundler/*.lock
 
 # /tool/
 /tool/config.guess
@@ -243,12 +236,11 @@ lcov*.info
 # /win32/
 /win32/*.ico
 
-# RJIT
-/include/ruby-*/*/rb_rjit_min_header-*.h
-/lib/ruby_vm/rjit/instruction.rb
-/lib/ruby_vm/rjit/instruction.rb
-/rjit_config.h
-/rb_rjit_header.h*
+# MJIT
+/include/ruby-*/*/rb_mjit_min_header-*.h
+/lib/ruby_vm/mjit/instruction.rb
+/mjit_config.h
+/rb_mjit_header.h
 
 # YJIT
 /yjit-bench
@@ -256,28 +248,3 @@ lcov*.info
 
 # /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/api_node.c
-/prism/ast.h
-/prism/diagnostic.c
-/prism/diagnostic.h
-/prism/node.c
-/prism/prettyprint.c
-/prism/serialize.c
-/prism/token_type.c
-
-# tool/update-NEWS-gemlist.rb
-/bundled_gems.json
-/default_gems.json
-/gems/default_gems
diff --git a/.mailmap b/.mailmap
deleted file mode 100644
index 213a0f4916..0000000000
--- a/.mailmap
+++ /dev/null
@@ -1,431 +0,0 @@
-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
index 4dfbfa140c..760507c7a2 100644
--- a/.rdoc_options
+++ b/.rdoc_options
@@ -1,9 +1,4 @@
 ---
 page_dir: doc
-charset: UTF-8
-encoding: UTF-8
 main_page: README.md
 title: Documentation for Ruby development version
-visibility: :private
-rdoc_include:
-- doc
diff --git a/LEGAL b/LEGAL
index 162ba78483..0423d57ac9 100644
--- a/LEGAL
+++ b/LEGAL
@@ -58,12 +58,12 @@ mentioned below.
 
 [ccan/list/list.h]
 
-  This file is licensed under the {MIT License}[rdoc-ref:@MIT+License].
+  This file is licensed under the {MIT License}[rdoc-label:label-MIT+License].
 
 [coroutine]
 
   Unless otherwise specified, these files are licensed under the
-  {MIT License}[rdoc-ref:@MIT+License].
+  {MIT License}[rdoc-label:label-MIT+License].
 
 [include/ruby/onigmo.h]
 [include/ruby/oniguruma.h]
@@ -546,7 +546,7 @@ mentioned below.
 
 [vsnprintf.c]
 
-  This file is under the {old-style BSD license}[rdoc-ref:@Old-style+BSD+license].
+  This file is under the {old-style BSD license}[rdoc-label:label-Old-style+BSD+license].
 
   >>>
     Copyright (c) 1990, 1993::
@@ -577,7 +577,7 @@ mentioned below.
 
 [missing/crypt.c]
 
-  This file is under the {old-style BSD license}[rdoc-ref:@Old-style+BSD+license].
+  This file is under the {old-style BSD license}[rdoc-label:label-Old-style+BSD+license].
 
   >>>
     Copyright (c) 1989, 1993::
@@ -588,7 +588,7 @@ mentioned below.
 
 [missing/setproctitle.c]
 
-  This file is under the {old-style BSD license}[rdoc-ref:@Old-style+BSD+license].
+  This file is under the {old-style BSD license}[rdoc-label:label-Old-style+BSD+license].
 
   >>>
     Copyright 2003:: Damien Miller
@@ -727,10 +727,29 @@ mentioned below.
       for internal or external distribution as long as this notice
       remains attached.
 
+[ext/nkf/nkf-utf8/config.h]
+[ext/nkf/nkf-utf8/nkf.c]
+[ext/nkf/nkf-utf8/utf8tbl.c]
+
+  These files are under the following license.  So to speak, it is
+  copyrighted semi-public-domain software.
+
+  >>>
+    Copyright (C) 1987:: Fujitsu LTD. (Itaru ICHIKAWA)
+
+    Everyone is permitted to do anything on this program
+    including copying, modifying, improving,
+    as long as you don't try to pretend that you wrote it.
+    i.e., the above copyright notice has to appear in all copies.
+    Binary distribution requires original version messages.
+    You don't have to ask before copying, redistribution or publishing.
+    THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE.
+
 [ext/psych]
 [test/psych]
 
-  The files under these directories are under the following license.
+  The files under these directories are under the following license, except for
+  ext/psych/yaml.
 
   >>>
     Copyright 2009:: Aaron Patterson, et al.
@@ -753,6 +772,31 @@ mentioned below.
     OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     SOFTWARE.
 
+[ext/psych/yaml]
+
+  The files under this directory are under the following license.
+
+  >>>
+    Copyright (c) 2006:: Kirill Simonov
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy of
+    this software and associated documentation files (the "Software"), to deal in
+    the Software without restriction, including without limitation the rights to
+    use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+    of the Software, and to permit persons to whom the Software is furnished to do
+    so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE.
+
 [ext/pty/pty.c]
 
   >>>
@@ -861,7 +905,7 @@ mentioned below.
   >>>
     RubyGems is copyrighted free software by Chad Fowler, Rich Kilmer, Jim
     Weirich and others.  You can redistribute it and/or modify it under
-    either the terms of the {MIT license}[rdoc-ref:@MIT+License], or the conditions
+    either the terms of the {MIT license}[rdoc-label:label-MIT+License], or the conditions
     below:
 
     1. You may make and give away verbatim copies of the source form of the
@@ -923,7 +967,7 @@ mentioned below.
     Portions copyright (c) 2010:: Andre Arko
     Portions copyright (c) 2009:: Engine Yard
 
-    {MIT License}[rdoc-ref:@MIT+License]
+    {MIT License}[rdoc-label:label-MIT+License]
 
 [lib/bundler/vendor/thor]
 
@@ -932,16 +976,16 @@ mentioned below.
   >>>
     Copyright (c) 2008 Yehuda Katz, Eric Hodel, et al.
 
-    {MIT License}[rdoc-ref:@MIT+License]
+    {MIT License}[rdoc-label:label-MIT+License]
 
-[lib/rubygems/vendor/molinillo]
+[lib/rubygems/resolver/molinillo]
 
   molinillo is under the following license.
 
   >>>
     Copyright (c) 2014 Samuel E. Giddins segiddins@segiddins.me
 
-    {MIT License}[rdoc-ref:@MIT+License]
+    {MIT License}[rdoc-label:label-MIT+License]
 
 [lib/bundler/vendor/pub_grub]
 
@@ -950,7 +994,7 @@ mentioned below.
   >>>
     Copyright (c) 2018 John Hawthorn
 
-    {MIT License}[rdoc-ref:@MIT+License]
+    {MIT License}[rdoc-label:label-MIT+License]
 
 [lib/bundler/vendor/connection_pool]
 
@@ -959,7 +1003,7 @@ mentioned below.
   >>>
     Copyright (c) 2011 Mike Perham
 
-    {MIT License}[rdoc-ref:@MIT+License]
+    {MIT License}[rdoc-label:label-MIT+License]
 
 [lib/bundler/vendor/net-http-persistent]
 
@@ -968,7 +1012,7 @@ mentioned below.
   >>>
     Copyright (c) Eric Hodel, Aaron Patterson
 
-    {MIT License}[rdoc-ref:@MIT+License]
+    {MIT License}[rdoc-label:label-MIT+License]
 
 [lib/did_you_mean]
 [lib/did_you_mean.rb]
@@ -979,7 +1023,7 @@ mentioned below.
   >>>
     Copyright (c) 2014-2016 Yuki Nishijima
 
-    {MIT License}[rdoc-ref:@MIT+License]
+    {MIT License}[rdoc-label:label-MIT+License]
 
 [lib/error_highlight]
 [lib/error_highlight.rb]
@@ -990,7 +1034,7 @@ mentioned below.
   >>>
     Copyright (c) 2021 Yusuke Endoh
 
-    {MIT License}[rdoc-ref:@MIT+License]
+    {MIT License}[rdoc-label:label-MIT+License]
 
 [benchmark/so_ackermann.rb]
 [benchmark/so_array.rb]
diff --git a/NEWS.md b/NEWS.md
index a09437fda2..f6c3c6fc97 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,185 +1,820 @@
-# NEWS for Ruby 3.4.0
+# NEWS for Ruby 3.2.0
 
 This document is a list of user-visible feature changes
-since the **3.3.0** release, except for bug fixes.
+since the **3.1.0** release, except for bug fixes.
 
 Note that each entry is kept to a minimum, see links for details.
 
 ## Language changes
 
-* String literals in files without a `frozen_string_literal` comment now emit a deprecation warning
-  when they are mutated.
-  These warnings can be enabled with `-W:deprecated` or by setting `Warning[:deprecated] = true`.
-  To disable this change, you can run Ruby with the `--disable-frozen-string-literal`
-  command line argument. [[Feature #20205]]
+* Anonymous rest and keyword rest arguments can now be passed as
+  arguments, instead of just used in method parameters.
+  [[Feature #18351]]
 
-* `it` is added to reference a block parameter. [[Feature #18980]]
+    ```ruby
+    def foo(*)
+      bar(*)
+    end
+    def baz(**)
+      quux(**)
+    end
+    ```
+
+* A proc that accepts a single positional argument and keywords will
+  no longer autosplat. [[Bug #18633]]
+
+    ```ruby
+    proc{|a, **k| a}.call([1, 2])
+    # Ruby 3.1 and before
+    # => 1
+    # Ruby 3.2 and after
+    # => [1, 2]
+    ```
+
+* Constant assignment evaluation order for constants set on explicit
+  objects has been made consistent with single attribute assignment
+  evaluation order. With this code:
+
+    ```ruby
+    foo::BAR = baz
+    ```
+
+    `foo` is now called before `baz`. Similarly, for multiple assignments
+    to constants,  left-to-right evaluation order is used. With this
+    code:
+
+    ```ruby
+    foo1::BAR1, foo2::BAR2 = baz1, baz2
+    ```
 
-* Keyword splatting `nil` when calling methods is now supported.
-  `**nil` is treated similarly to `**{}`, passing no keywords,
-  and not calling any conversion methods.  [[Bug #20064]]
+    The following evaluation order is now used:
 
-* Block passing is no longer allowed in index assignment
-  (e.g. `a[0, &b] = 1`).  [[Bug #19918]]
+    1. `foo1`
+    2. `foo2`
+    3. `baz1`
+    4. `baz2`
 
-* Keyword arguments are no longer allowed in index assignment
-  (e.g. `a[0, kw: 1] = 2`).  [[Bug #20218]]
+    [[Bug #15928]]
 
-* `GC.config` added to allow setting configuration variables on the Garbage
-  Collector. [[Feature #20443]]
+* "Find pattern" is no longer experimental.
+  [[Feature #18585]]
 
-* GC configuration parameter `rgengc_allow_full_mark` introduced. When `false`
-  GC will only mark young objects. Default is `true`. [[Feature #20443]]
+* Methods taking a rest parameter (like `*args`) and wishing to delegate keyword
+  arguments through `foo(*args)` must now be marked with `ruby2_keywords`
+  (if not already the case). In other words, all methods wishing to delegate
+  keyword arguments through `*args` must now be marked with `ruby2_keywords`,
+  with no exception. This will make it easier to transition to other ways of
+  delegation once a library can require Ruby 3+. Previously, the `ruby2_keywords`
+  flag was kept if the receiving method took `*args`, but this was a bug and an
+  inconsistency. A good technique to find the potentially-missing `ruby2_keywords`
+  is to run the test suite, for where it fails find the last method which must
+  receive keyword arguments, use `puts nil, caller, nil` there, and check each
+  method/block on the call chain which must delegate keywords is correctly marked
+  as `ruby2_keywords`. [[Bug #18625]] [[Bug #16466]]
+
+    ```ruby
+    def target(**kw)
+    end
+
+    # Accidentally worked without ruby2_keywords in Ruby 2.7-3.1, ruby2_keywords
+    # needed in 3.2+. Just like (*args, **kwargs) or (...) would be needed on
+    # both #foo and #bar when migrating away from ruby2_keywords.
+    ruby2_keywords def bar(*args)
+      target(*args)
+    end
+
+    ruby2_keywords def foo(*args)
+      bar(*args)
+    end
+
+    foo(k: 1)
+    ```
 
 ## Core classes updates
 
 Note: We're only listing outstanding class updates.
 
+* Fiber
+
+    * Introduce Fiber.[] and Fiber.[]= for inheritable fiber storage.
+      Introduce Fiber#storage and Fiber#storage= (experimental) for
+      getting and resetting the current storage.  Introduce
+      `Fiber.new(storage:)` for setting the storage when creating a
+      fiber. [[Feature #19078]]
+
+        Existing Thread and Fiber local variables can be tricky to use.
+        Thread-local variables are shared between all fibers, making it
+        hard to isolate, while Fiber-local variables can be hard to
+        share.  It is often desirable to define unit of execution
+        ("execution context") such that some state is shared between all
+        fibers and threads created in that context.  This is what Fiber
+        storage provides.
+
+        ```ruby
+        def log(message)
+          puts "#{Fiber[:request_id]}: #{message}"
+        end
+
+        def handle_requests
+          while request = read_request
+            Fiber.schedule do
+              Fiber[:request_id] = SecureRandom.uuid
+
+              request.messages.each do |message|
+                Fiber.schedule do
+                  log("Handling #{message}") # Log includes inherited request_id.
+                end
+              end
+            end
+          end
+        end
+        ```
+
+        You should generally consider Fiber storage for any state which
+        you want to be shared implicitly between all fibers and threads
+        created in a given context, e.g. a connection pool, a request
+        id, a logger level, environment variables, configuration, etc.
+
+* Fiber::Scheduler
+
+    * Introduce `Fiber::Scheduler#io_select` for non-blocking IO.select.
+      [[Feature #19060]]
+
+* IO
+
+    * Introduce IO#timeout= and IO#timeout which can cause
+      IO::TimeoutError to be raised if a blocking operation exceeds the
+      specified timeout. [[Feature #18630]]
+
+        ```ruby
+        STDIN.timeout = 1
+        STDIN.read # => Blocking operation timed out! (IO::TimeoutError)
+        ```
+
+    * Introduce `IO.new(..., path:)` and promote `File#path` to `IO#path`.
+      [[Feature #19036]]
+
+* Class
+
+    * Class#attached_object, which returns the object for which
+      the receiver is the singleton class. Raises TypeError if the
+      receiver is not a singleton class.
+      [[Feature #12084]]
+
+        ```ruby
+        class Foo; end
+
+        Foo.singleton_class.attached_object        #=> Foo
+        Foo.new.singleton_class.attached_object    #=> #<Foo:0x000000010491a370>
+        Foo.attached_object                        #=> TypeError: `Foo' is not a singleton class
+        nil.singleton_class.attached_object        #=> TypeError: `NilClass' is not a singleton class
+        ```
+
+* Data
+
+    * New core class to represent simple immutable value object. The class is
+      similar to Struct and partially shares an implementation, but has more
+      lean and strict API. [[Feature #16122]]
+
+        ```ruby
+        Measure = Data.define(:amount, :unit)
+        distance = Measure.new(100, 'km')            #=> #<data Measure amount=100, unit="km">
+        weight = Measure.new(amount: 50, unit: 'kg') #=> #<data Measure amount=50, unit="kg">
+        weight.with(amount: 40)                      #=> #<data Measure amount=40, unit="kg">
+        weight.amount                                #=> 50
+        weight.amount = 40                           #=> NoMethodError: undefined method `amount='
+        ```
+
+* Encoding
+
+    * Encoding#replicate has been deprecated and will be removed in 3.3. [[Feature #18949]]
+    * The dummy `Encoding::UTF_16` and `Encoding::UTF_32` encodings no longer
+      try to dynamically guess the endian based on a byte order mark.
+      Use `Encoding::UTF_16BE`/`UTF_16LE` and `Encoding::UTF_32BE`/`UTF_32LE` instead.
+      This change speeds up getting the encoding of a String. [[Feature #18949]]
+    * Limit maximum encoding set size by 256.
+      If exceeding maximum size, `EncodingError` will be raised. [[Feature #18949]]
+
+* Enumerator
+
+    * Enumerator.product has been added.  Enumerator::Product is the implementation. [[Feature #18685]]
+
 * Exception
 
-  * Exception#set_backtrace now accepts arrays of `Thread::Backtrace::Location`.
-    `Kernel#raise`, `Thread#raise` and `Fiber#raise` also accept this new format. [[Feature #13557]]
+    * Exception#detailed_message has been added.
+      The default error printer calls this method on the Exception object
+      instead of #message. [[Feature #18564]]
 
-* Range
+* Hash
 
-  * Range#size now raises TypeError if the range is not iterable. [[Misc #18984]]
-  * Range#step now consistently has a semantics of iterating by using `+` operator
-    for all types, not only numerics. [[Feature #18368]]
+    * Hash#shift now always returns nil if the hash is
+      empty, instead of returning the default value or
+      calling the default proc. [[Bug #16908]]
 
-    ```ruby
-    (Time.utc(2022, 2, 24)..).step(24*60*60).take(3)
-    #=> [2022-02-24 00:00:00 UTC, 2022-02-25 00:00:00 UTC, 2022-02-26 00:00:00 UTC]
-    ```
+* Integer
+
+    * Integer#ceildiv has been added. [[Feature #18809]]
+
+* Kernel
+
+    * Kernel#binding raises RuntimeError if called from a non-Ruby frame
+      (such as a method defined in C). [[Bug #18487]]
+
+* MatchData
+
+    * MatchData#byteoffset has been added. [[Feature #13110]]
+    * MatchData#deconstruct has been added. [[Feature #18821]]
+    * MatchData#deconstruct_keys has been added. [[Feature #18821]]
+
+* Module
+
+    * Module.used_refinements has been added. [[Feature #14332]]
+    * Module#refinements has been added. [[Feature #12737]]
+    * Module#const_added has been added. [[Feature #17881]]
+    * Module#undefined_instance_methods has been added. [[Feature #12655]]
+
+* Proc
+
+    * Proc#dup returns an instance of subclass. [[Bug #17545]]
+    * Proc#parameters now accepts lambda keyword. [[Feature #15357]]
+
+* Process
+    * Added `RLIMIT_NPTS` constant to FreeBSD platform
+
+* Regexp
+
+    * The cache-based optimization is introduced.
+      Many (but not all) Regexp matching is now in linear time, which
+      will prevent regular expression denial of service (ReDoS)
+      vulnerability. [[Feature #19104]]
+
+    * Regexp.linear_time? is introduced. [[Feature #19194]]
+
+    * Regexp.new now supports passing the regexp flags not only as an Integer,
+      but also as a String.  Unknown flags raise ArgumentError.
+      Otherwise, anything other than `true`, `false`, `nil` or Integer will be warned.
+      [[Feature #18788]]
+
+    * Regexp.timeout= has been added. Also, Regexp.new new supports timeout keyword.
+      See [[Feature #17837]]
+
+* Refinement
+
+    * Refinement#refined_class has been added. [[Feature #12737]]
 
 * RubyVM::AbstractSyntaxTree
 
-  * Add `RubyVM::AbstractSyntaxTree::Node#locations` method which returns location objects
-    associated with the AST node. [[Feature #20624]]
-  * Add `RubyVM::AbstractSyntaxTree::Location` class which holds location information. [[Feature #20624]]
+    * Add `error_tolerant` option for `parse`, `parse_file` and `of`. [[Feature #19013]]
+      With this option
+
+        1. SyntaxError is suppressed
+        2. AST is returned for invalid input
+        3. `end` is complemented when a parser reaches to the end of input but `end` is insufficient
+        4. `end` is treated as keyword based on indent
+
+        ```ruby
+        # Without error_tolerant option
+        root = RubyVM::AbstractSyntaxTree.parse(<<~RUBY)
+        def m
+          a = 10
+          if
+        end
+        RUBY
+        # => <internal:ast>:33:in `parse': syntax error, unexpected `end' (SyntaxError)
+
+        # With error_tolerant option
+        root = RubyVM::AbstractSyntaxTree.parse(<<~RUBY, error_tolerant: true)
+        def m
+          a = 10
+          if
+        end
+        RUBY
+        p root # => #<RubyVM::AbstractSyntaxTree::Node:SCOPE@1:0-4:3>
+
+        # `end` is treated as keyword based on indent
+        root = RubyVM::AbstractSyntaxTree.parse(<<~RUBY, error_tolerant: true)
+        module Z
+          class Foo
+            foo.
+          end
+
+          def bar
+          end
+        end
+        RUBY
+        p root.children[-1].children[-1].children[-1].children[-2..-1]
+        # => [#<RubyVM::AbstractSyntaxTree::Node:CLASS@2:2-4:5>, #<RubyVM::AbstractSyntaxTree::Node:DEFN@6:2-7:5>]
+        ```
+
+    * Add `keep_tokens` option for `parse`, `parse_file` and `of`. Add `#tokens` and `#all_tokens`
+      for RubyVM::AbstractSyntaxTree::Node [[Feature #19070]]
+
+        ```ruby
+        root = RubyVM::AbstractSyntaxTree.parse("x = 1 + 2", keep_tokens: true)
+        root.tokens # => [[0, :tIDENTIFIER, "x", [1, 0, 1, 1]], [1, :tSP, " ", [1, 1, 1, 2]], ...]
+        root.tokens.map{_1[2]}.join # => "x = 1 + 2"
+        ```
+
+* Set
+
+    * Set is now available as a built-in class without the need for `require "set"`. [[Feature #16989]]
+      It is currently autoloaded via the Set constant or a call to Enumerable#to_set.
+
+* String
+
+    * String#byteindex and String#byterindex have been added. [[Feature #13110]]
+    * Update Unicode to Version 15.0.0 and Emoji Version 15.0. [[Feature #18639]]
+      (also applies to Regexp)
+    * String#bytesplice has been added.  [[Feature #18598]]
+    * String#dedup has been added as an alias to String#-@.  [[Feature #18595]]
+
+* Struct
+
+    * A Struct class can also be initialized with keyword arguments
+      without `keyword_init: true` on Struct.new [[Feature #16806]]
+
+        ```ruby
+        Post = Struct.new(:id, :name)
+        Post.new(1, "hello") #=> #<struct Post id=1, name="hello">
+        # From Ruby 3.2, the following code also works without keyword_init: true.
+        Post.new(id: 1, name: "hello") #=> #<struct Post id=1, name="hello">
+        ```
+
+* Thread
+
+    * Thread.each_caller_location is added. [[Feature #16663]]
+
+* Thread::Queue
+
+    * Thread::Queue#pop(timeout: sec) is added. [[Feature #18774]]
+
+* Thread::SizedQueue
+
+    * Thread::SizedQueue#pop(timeout: sec) is added. [[Feature #18774]]
+    * Thread::SizedQueue#push(timeout: sec) is added. [[Feature #18944]]
+
+* Time
+
+    * Time#deconstruct_keys is added, allowing to use Time instances
+      in pattern-matching expressions [[Feature #19071]]
+
+    * Time.new now can parse a string like generated by Time#inspect
+      and return a Time instance based on the given argument.
+      [[Feature #18033]]
+
+* SyntaxError
+    * SyntaxError#path has been added.  [[Feature #19138]]
+
+* TracePoint
+
+    * TracePoint#binding now returns `nil` for `c_call`/`c_return` TracePoints.
+      [[Bug #18487]]
+    * TracePoint#enable `target_thread` keyword argument now defaults to the
+      current thread if a block is given and `target` and `target_line` keyword
+      arguments are not passed. [[Bug #16889]]
+
+* UnboundMethod
+
+    * `UnboundMethod#==` returns `true` if the actual method is same. For example,
+      `String.instance_method(:object_id) == Array.instance_method(:object_id)`
+      returns `true`. [[Feature #18798]]
+
+    * `UnboundMethod#inspect` does not show the receiver of `instance_method`.
+      For example `String.instance_method(:object_id).inspect` returns
+      `"#<UnboundMethod: Kernel#object_id()>"`
+      (was `"#<UnboundMethod: String(Kernel)#object_id()>"`).
+
+* GC
+
+    * Expose `need_major_gc` via `GC.latest_gc_info`. [GH-6791]
+
+* ObjectSpace
+
+    * `ObjectSpace.dump_all` dump shapes as well. [GH-6868]
 
 ## Stdlib updates
 
-* Tempfile
-
-    * The keyword argument `anonymous: true` is implemented for `Tempfile.create`.
-      `Tempfile.create(anonymous: true)` removes the created temporary file immediately.
-      So applications don't need to remove the file.
-      [[Feature #20497]]
-
-The following default gems are updated.
-
-* RubyGems 3.6.0.dev
-* bundler 2.6.0.dev
-* erb 4.0.4
-* fiddle 1.1.3.dev
-* io-console 0.7.2
-* irb 1.14.1
-* json 2.7.2
-* logger 1.6.1
-* net-http 0.4.1
-* optparse 0.5.0
-* prism 1.0.0
-* psych 5.2.0.beta1
-* rdoc 6.7.0
-* reline 0.5.10
-* resolv 0.4.0
-* stringio 3.1.2.dev
-* strscan 3.1.1.dev
-* time 0.4.0
-* uri 0.13.1
-* zlib 3.1.1
-
-The following bundled gems are updated.
-
-* minitest 5.25.1
-* power_assert 2.0.4
-* rake 13.2.1
-* test-unit 3.6.2
-* rexml 3.3.8
-* rss 0.3.1
-* net-ftp 0.3.8
-* net-imap 0.4.16
-* net-smtp 0.5.0
-* rbs 3.6.1
-* typeprof 0.21.11
-* debug 1.9.2
-* racc 1.8.1
-
-The following bundled gems are promoted from default gems.
-
-* mutex_m 0.2.0
-* getoptlong 0.2.1
-* base64 0.2.0
-* bigdecimal 3.1.8
-* observer 0.1.2
-* abbrev 0.1.2
-* resolv-replace 0.1.1
-* rinda 0.2.0
-* drb 2.2.1
-* nkf 0.2.0
-* syslog 0.1.2
-* csv 3.3.0
-* repl_type_completor 0.1.7
+* Bundler
+
+    * Bundler now uses [PubGrub] resolver instead of [Molinillo] for performance improvement.
+    * Add --ext=rust support to bundle gem for creating simple gems with Rust extensions.
+      [[GH-rubygems-6149]]
+    * Make cloning git repos faster [[GH-rubygems-4475]]
+
+* RubyGems
+
+    * Add mswin support for cargo builder. [[GH-rubygems-6167]]
+
+* CGI
+
+    * `CGI.escapeURIComponent` and `CGI.unescapeURIComponent` are added.
+      [[Feature #18822]]
+
+* Coverage
+
+    * `Coverage.setup` now accepts `eval: true`. By this, `eval` and related methods are
+      able to generate code coverage. [[Feature #19008]]
+
+    * `Coverage.supported?(mode)` enables detection of what coverage modes are
+      supported. [[Feature #19026]]
+
+* Date
+
+    * Added `Date#deconstruct_keys` and `DateTime#deconstruct_keys` same as [[Feature #19071]]
+
+* ERB
+
+    * `ERB::Util.html_escape` is made faster than `CGI.escapeHTML`.
+        * It no longer allocates a String object when no character needs to be escaped.
+        * It skips calling `#to_s` method when an argument is already a String.
+        * `ERB::Escape.html_escape` is added as an alias to `ERB::Util.html_escape`,
+          which has not been monkey-patched by Rails.
+    * `ERB::Util.url_encode` is made faster using `CGI.escapeURIComponent`.
+    * `-S` option is removed from `erb` command.
+
+* FileUtils
+
+    * Add FileUtils.ln_sr method and `relative:` option to FileUtils.ln_s.
+      [[Feature #18925]]
+
+* IRB
+
+    * debug.gem integration commands have been added: `debug`, `break`, `catch`,
+      `next`, `delete`, `step`, `continue`, `finish`, `backtrace`, `info`
+        * They work even if you don't have `gem "debug"` in your Gemfile.
+        * See also: [What's new in Ruby 3.2's IRB?](https://st0012.dev/whats-new-in-ruby-3-2-irb)
+    * More Pry-like commands and features have been added.
+        * `edit` and `show_cmds` (like Pry's `help`) are added.
+        * `ls` takes `-g` or `-G` option to filter out outputs.
+        * `show_source` is aliased from `$` and accepts unquoted inputs.
+        * `whereami` is aliased from `@`.
+
+* Net::Protocol
+
+    * Improve `Net::BufferedIO` performance. [[GH-net-protocol-14]]
+
+* Pathname
+
+    * Added `Pathname#lutime`. [[GH-pathname-20]]
+
+* Socket
+
+    * Added the following constants for supported platforms.
+        * `SO_INCOMING_CPU`
+        * `SO_INCOMING_NAPI_ID`
+        * `SO_RTABLE`
+        * `SO_SETFIB`
+        * `SO_USER_COOKIE`
+        * `TCP_KEEPALIVE`
+        * `TCP_CONNECTION_INFO`
+
+* SyntaxSuggest
+
+    * The feature of `syntax_suggest` formerly `dead_end` is integrated in Ruby.
+      [[Feature #18159]]
+
+* UNIXSocket
+
+    * Add support for UNIXSocket on Windows. Emulate anonymous sockets. Add
+      support for File.socket? and File::Stat#socket? where possible.
+      [[Feature #19135]]
+
+*   The following default gems are updated.
+
+    * RubyGems 3.4.1
+    * abbrev 0.1.1
+    * benchmark 0.2.1
+    * bigdecimal 3.1.3
+    * bundler 2.4.1
+    * cgi 0.3.6
+    * csv 3.2.6
+    * date 3.3.3
+    * delegate 0.3.0
+    * did_you_mean 1.6.3
+    * digest 3.1.1
+    * drb 2.1.1
+    * english 0.7.2
+    * erb 4.0.2
+    * error_highlight 0.5.1
+    * etc 1.4.2
+    * fcntl 1.0.2
+    * fiddle 1.1.1
+    * fileutils 1.7.0
+    * forwardable 1.3.3
+    * getoptlong 0.2.0
+    * io-console 0.6.0
+    * io-nonblock 0.2.0
+    * io-wait 0.3.0
+    * ipaddr 1.2.5
+    * irb 1.6.2
+    * json 2.6.3
+    * logger 1.5.3
+    * mutex_m 0.1.2
+    * net-http 0.4.0
+    * net-protocol 0.2.1
+    * nkf 0.1.2
+    * open-uri 0.3.0
+    * open3 0.1.2
+    * openssl 3.1.0
+    * optparse 0.3.1
+    * ostruct 0.5.5
+    * pathname 0.2.1
+    * pp 0.4.0
+    * pstore 0.1.2
+    * psych 5.0.1
+    * racc 1.6.2
+    * rdoc 6.5.0
+    * readline-ext 0.1.5
+    * reline 0.3.2
+    * resolv 0.2.2
+    * resolv-replace 0.1.1
+    * securerandom 0.2.2
+    * set 1.0.3
+    * stringio 3.0.4
+    * strscan 3.0.5
+    * syntax_suggest 1.0.2
+    * syslog 0.1.1
+    * tempfile 0.1.3
+    * time 0.2.1
+    * timeout 0.3.1
+    * tmpdir 0.1.3
+    * tsort 0.1.1
+    * un 0.2.1
+    * uri 0.12.0
+    * weakref 0.1.2
+    * win32ole 1.8.9
+    * yaml 0.2.1
+    * zlib 3.0.0
+
+*   The following bundled gems are updated.
+
+    * minitest 5.16.3
+    * power_assert 2.0.3
+    * test-unit 3.5.7
+    * net-ftp 0.2.0
+    * net-imap 0.3.4
+    * net-pop 0.1.2
+    * net-smtp 0.3.3
+    * rbs 2.8.2
+    * typeprof 0.21.3
+    * debug 1.7.1
 
 See GitHub releases like [GitHub Releases of Logger](https://github.com/ruby/logger/releases) or changelog for details of the default gems or bundled gems.
 
 ## Supported platforms
 
+* WebAssembly/WASI is added. See [wasm/README.md] and [ruby.wasm] for more details. [[Feature #18462]]
+
 ## Compatibility issues
 
-* Error messages and backtrace displays have been changed.
-  * Use a single quote instead of a backtick as a opening quote. [[Feature #16495]]
-  * Display a class name before a method name (only when the class has a permanent name). [[Feature #19117]]
-  * `Kernel#caller`, `Thread::Backtrace::Location`'s methods, etc. are also changed accordingly.
-  ```
-  Old:
-  test.rb:1:in `foo': undefined method `time' for an instance of Integer
-          from test.rb:2:in `<main>'
+* `String#to_c` currently treat a sequence of underscores as an end of Complex
+  string. [[Bug #19087]]
+
+* Now `ENV.clone` raises `TypeError` as well as `ENV.dup` [[Bug #17767]]
+
+### Removed constants
+
+The following deprecated constants are removed.
 
-  New:
-  test.rb:1:in 'Object#foo': undefined method 'time' for an instance of Integer
-          from test.rb:2:in `<main>'
-  ```
+* `Fixnum` and `Bignum` [[Feature #12005]]
+* `Random::DEFAULT` [[Feature #17351]]
+* `Struct::Group`
+* `Struct::Passwd`
+
+### Removed methods
+
+The following deprecated methods are removed.
+
+* `Dir.exists?` [[Feature #17391]]
+* `File.exists?` [[Feature #17391]]
+* `Kernel#=~` [[Feature #15231]]
+* `Kernel#taint`, `Kernel#untaint`, `Kernel#tainted?`
+  [[Feature #16131]]
+* `Kernel#trust`, `Kernel#untrust`, `Kernel#untrusted?`
+  [[Feature #16131]]
+* `Method#public?`, `Method#private?`, `Method#protected?`,
+  `UnboundMethod#public?`, `UnboundMethod#private?`, `UnboundMethod#protected?`
+  [[Bug #18729]] [[Bug #18751]] [[Bug #18435]]
+
+### Source code incompatibility of extension libraries
+
+* Extension libraries provide PRNG, subclasses of Random, need updates.
+  See [PRNG update] below for more information. [[Bug #19100]]
+
+### Error printer
+
+* Ruby no longer escapes control characters and backslashes in an
+  error message. [[Feature #18367]]
+
+### Constant lookup when defining a class/module
+
+* When defining a class/module directly under the Object class by class/module
+  statement, if there is already a class/module defined by `Module#include`
+  with the same name, the statement was handled as "open class" in Ruby 3.1 or before.
+  Since Ruby 3.2, a new class is defined instead. [[Feature #18832]]
 
 ## Stdlib compatibility issues
 
+* Psych no longer bundles libyaml sources.
+  And also Fiddle no longer bundles libffi sources.
+  Users need to install the libyaml/libffi library themselves via the package
+  manager like apt, yum, brew, etc.
+
+    Psych and fiddle supported the static build with specific version of libyaml
+    and libffi sources. You can build psych with libyaml-0.2.5 like this.
+
+    ```bash
+    $ ./configure --with-libyaml-source-dir=/path/to/libyaml-0.2.5
+    ```
+
+    And you can build fiddle with libffi-3.4.4 like this.
+
+    ```bash
+    $ ./configure --with-libffi-source-dir=/path/to/libffi-3.4.4
+    ```
+
+    [[Feature #18571]]
+
+* Check cookie name/path/domain characters in `CGI::Cookie`. [[CVE-2021-33621]]
+
+* `URI.parse` return empty string in host instead of nil. [[sec-156615]]
+
 ## C API updates
 
-* `rb_newobj` and `rb_newobj_of` (and corresponding macros `RB_NEWOBJ`, `RB_NEWOBJ_OF`, `NEWOBJ`, `NEWOBJ_OF`) have been removed. [[Feature #20265]]
-* Removed deprecated function `rb_gc_force_recycle`. [[Feature #18290]]
+### Updated C APIs
+
+The following APIs are updated.
+
+* PRNG update
+
+    `rb_random_interface_t` in ruby/random.h updated and versioned.
+    Extension libraries which use this interface and built for older
+    versions need to rebuild with adding `init_int32` function.
+
+### Added C APIs
+
+* `VALUE rb_hash_new_capa(long capa)` was added to created hashes with the desired capacity.
+* `rb_internal_thread_add_event_hook` and `rb_internal_thread_add_event_hook` were added to instrument threads scheduling.
+  The following events are available:
+    * `RUBY_INTERNAL_THREAD_EVENT_STARTED`
+    * `RUBY_INTERNAL_THREAD_EVENT_READY`
+    * `RUBY_INTERNAL_THREAD_EVENT_RESUMED`
+    * `RUBY_INTERNAL_THREAD_EVENT_SUSPENDED`
+    * `RUBY_INTERNAL_THREAD_EVENT_EXITED`
+* `rb_debug_inspector_current_depth` and `rb_debug_inspector_frame_depth` are added for debuggers.
+
+### Removed C APIs
+
+The following deprecated APIs are removed.
+
+* `rb_cData` variable.
+* "taintedness" and "trustedness" functions. [[Feature #16131]]
 
 ## Implementation improvements
 
-* `Array#each` is rewritten in Ruby for better performance [[Feature #20182]].
+* Fixed several race conditions in Kernel#autoload. [[Bug #18782]]
+* Cache invalidation for expressions referencing constants is now
+  more fine-grained. `RubyVM.stat(:global_constant_state)` was
+  removed because it was closely tied to the previous caching scheme
+  where setting any constant invalidates all caches in the system.
+  New keys, `:constant_cache_invalidations` and `:constant_cache_misses`,
+  were introduced to help with use cases for `:global_constant_state`.
+  [[Feature #18589]]
+* The cache-based optimization for Regexp matching is introduced.
+  [[Feature #19104]]
+* [Variable Width Allocation](https://shopify.engineering/ruby-variable-width-allocation)
+  is now enabled by default. [[Feature #18239]]
+* Added a new instance variable caching mechanism, called object shapes, which
+  improves inline cache hits for most objects and allows us to generate very
+  efficient JIT code. Objects whose instance variables are defined in a
+  consistent order will see the most performance benefits.
+  [[Feature #18776]]
+* Speed up marking instruction sequences by using a bitmap to find "markable"
+  objects.  This change results in faster major collections.
+  [[Feature #18875]]
 
 ## JIT
 
-## Miscellaneous changes
-
-* Passing a block to a method which doesn't use the passed block will show
-  a warning on verbose mode (`-w`).
-  [[Feature #15554]]
-
-* Redefining some core methods that are specially optimized by the interpreter
-  and JIT like `String.freeze` or `Integer#+` now emits a performance class
-  warning (`-W:performance` or `Warning[:performance] = true`).
-  [[Feature #20429]]
-
-[Feature #13557]: https://bugs.ruby-lang.org/issues/13557
-[Feature #15554]: https://bugs.ruby-lang.org/issues/15554
-[Feature #16495]: https://bugs.ruby-lang.org/issues/16495
-[Feature #18290]: https://bugs.ruby-lang.org/issues/18290
-[Feature #18368]: https://bugs.ruby-lang.org/issues/18368
-[Feature #18980]: https://bugs.ruby-lang.org/issues/18980
-[Misc #18984]:    https://bugs.ruby-lang.org/issues/18984
-[Feature #19117]: https://bugs.ruby-lang.org/issues/19117
-[Bug #19918]:     https://bugs.ruby-lang.org/issues/19918
-[Bug #20064]:     https://bugs.ruby-lang.org/issues/20064
-[Feature #20182]: https://bugs.ruby-lang.org/issues/20182
-[Feature #20205]: https://bugs.ruby-lang.org/issues/20205
-[Bug #20218]:     https://bugs.ruby-lang.org/issues/20218
-[Feature #20265]: https://bugs.ruby-lang.org/issues/20265
-[Feature #20429]: https://bugs.ruby-lang.org/issues/20429
-[Feature #20443]: https://bugs.ruby-lang.org/issues/20443
-[Feature #20497]: https://bugs.ruby-lang.org/issues/20497
-[Feature #20624]: https://bugs.ruby-lang.org/issues/20624
+### YJIT
+
+* YJIT is no longer experimental
+    * Has been tested on production workloads for over a year and proven to be quite stable.
+* YJIT now supports both x86-64 and arm64/aarch64 CPUs on Linux, MacOS, BSD and other UNIX platforms.
+    * This release brings support for Mac M1/M2, AWS Graviton and Raspberry Pi 4.
+* Building YJIT now requires Rust 1.58.0+. [[Feature #18481]]
+    * In order to ensure that CRuby is built with YJIT, please install `rustc` >= 1.58.0
+      before running `./configure`
+    * Please reach out to the YJIT team should you run into any issues.
+* Physical memory for JIT code is lazily allocated. Unlike Ruby 3.1,
+  the RSS of a Ruby process is minimized because virtual memory pages
+  allocated by `--yjit-exec-mem-size` will not be mapped to physical
+  memory pages until actually utilized by JIT code.
+* Introduce Code GC that frees all code pages when the memory consumption
+  by JIT code reaches `--yjit-exec-mem-size`.
+    * `RubyVM::YJIT.runtime_stats` returns Code GC metrics in addition to
+      existing `inline_code_size` and `outlined_code_size` keys:
+      `code_gc_count`, `live_page_count`, `freed_page_count`, and `freed_code_size`.
+* Most of the statistics produced by `RubyVM::YJIT.runtime_stats` are now available in release builds.
+    * Simply run ruby with `--yjit-stats` to compute and dump stats (incurs some run-time overhead).
+* YJIT is now optimized to take advantage of object shapes. [[Feature #18776]]
+* Take advantage of finer-grained constant invalidation to invalidate less code when defining new constants. [[Feature #18589]]
+* The default `--yjit-exec-mem-size` is changed to 64 (MiB).
+* The default `--yjit-call-threshold` is changed to 30.
+
+### MJIT
+
+* The MJIT compiler is re-implemented in Ruby as `ruby_vm/mjit/compiler`.
+* MJIT compiler is executed under a forked Ruby process instead of
+  doing it in a native thread called MJIT worker. [[Feature #18968]]
+    * As a result, Microsoft Visual Studio (MSWIN) is no longer supported.
+* MinGW is no longer supported. [[Feature #18824]]
+* Rename `--mjit-min-calls` to `--mjit-call-threshold`.
+* Change default `--mjit-max-cache` back from 10000 to 100.
+
+[Feature #12005]:     https://bugs.ruby-lang.org/issues/12005
+[Feature #12084]:     https://bugs.ruby-lang.org/issues/12084
+[Feature #12655]:     https://bugs.ruby-lang.org/issues/12655
+[Feature #12737]:     https://bugs.ruby-lang.org/issues/12737
+[Feature #13110]:     https://bugs.ruby-lang.org/issues/13110
+[Feature #14332]:     https://bugs.ruby-lang.org/issues/14332
+[Feature #15231]:     https://bugs.ruby-lang.org/issues/15231
+[Feature #15357]:     https://bugs.ruby-lang.org/issues/15357
+[Bug #15928]:         https://bugs.ruby-lang.org/issues/15928
+[Feature #16122]:     https://bugs.ruby-lang.org/issues/16122
+[Feature #16131]:     https://bugs.ruby-lang.org/issues/16131
+[Bug #16466]:         https://bugs.ruby-lang.org/issues/16466
+[Feature #16663]:     https://bugs.ruby-lang.org/issues/16663
+[Feature #16806]:     https://bugs.ruby-lang.org/issues/16806
+[Bug #16889]:         https://bugs.ruby-lang.org/issues/16889
+[Bug #16908]:         https://bugs.ruby-lang.org/issues/16908
+[Feature #16989]:     https://bugs.ruby-lang.org/issues/16989
+[Feature #17351]:     https://bugs.ruby-lang.org/issues/17351
+[Feature #17391]:     https://bugs.ruby-lang.org/issues/17391
+[Bug #17545]:         https://bugs.ruby-lang.org/issues/17545
+[Bug #17767]:         https://bugs.ruby-lang.org/issues/17767
+[Feature #17837]:     https://bugs.ruby-lang.org/issues/17837
+[Feature #17881]:     https://bugs.ruby-lang.org/issues/17881
+[Feature #18033]:     https://bugs.ruby-lang.org/issues/18033
+[Feature #18159]:     https://bugs.ruby-lang.org/issues/18159
+[Feature #18239]:     https://bugs.ruby-lang.org/issues/18239#note-17
+[Feature #18351]:     https://bugs.ruby-lang.org/issues/18351
+[Feature #18367]:     https://bugs.ruby-lang.org/issues/18367
+[Bug #18435]:         https://bugs.ruby-lang.org/issues/18435
+[Feature #18462]:     https://bugs.ruby-lang.org/issues/18462
+[Feature #18481]:     https://bugs.ruby-lang.org/issues/18481
+[Bug #18487]:         https://bugs.ruby-lang.org/issues/18487
+[Feature #18564]:     https://bugs.ruby-lang.org/issues/18564
+[Feature #18571]:     https://bugs.ruby-lang.org/issues/18571
+[Feature #18585]:     https://bugs.ruby-lang.org/issues/18585
+[Feature #18589]:     https://bugs.ruby-lang.org/issues/18589
+[Feature #18595]:     https://bugs.ruby-lang.org/issues/18595
+[Feature #18598]:     https://bugs.ruby-lang.org/issues/18598
+[Bug #18625]:         https://bugs.ruby-lang.org/issues/18625
+[Feature #18630]:     https://bugs.ruby-lang.org/issues/18630
+[Bug #18633]:         https://bugs.ruby-lang.org/issues/18633
+[Feature #18639]:     https://bugs.ruby-lang.org/issues/18639
+[Feature #18685]:     https://bugs.ruby-lang.org/issues/18685
+[Bug #18729]:         https://bugs.ruby-lang.org/issues/18729
+[Bug #18751]:         https://bugs.ruby-lang.org/issues/18751
+[Feature #18774]:     https://bugs.ruby-lang.org/issues/18774
+[Feature #18776]:     https://bugs.ruby-lang.org/issues/18776
+[Bug #18782]:         https://bugs.ruby-lang.org/issues/18782
+[Feature #18788]:     https://bugs.ruby-lang.org/issues/18788
+[Feature #18798]:     https://bugs.ruby-lang.org/issues/18798
+[Feature #18809]:     https://bugs.ruby-lang.org/issues/18809
+[Feature #18821]:     https://bugs.ruby-lang.org/issues/18821
+[Feature #18822]:     https://bugs.ruby-lang.org/issues/18822
+[Feature #18824]:     https://bugs.ruby-lang.org/issues/18824
+[Feature #18832]:     https://bugs.ruby-lang.org/issues/18832
+[Feature #18875]:     https://bugs.ruby-lang.org/issues/18875
+[Feature #18925]:     https://bugs.ruby-lang.org/issues/18925
+[Feature #18944]:     https://bugs.ruby-lang.org/issues/18944
+[Feature #18949]:     https://bugs.ruby-lang.org/issues/18949
+[Feature #18968]:     https://bugs.ruby-lang.org/issues/18968
+[Feature #19008]:     https://bugs.ruby-lang.org/issues/19008
+[Feature #19013]:     https://bugs.ruby-lang.org/issues/19013
+[Feature #19026]:     https://bugs.ruby-lang.org/issues/19026
+[Feature #19036]:     https://bugs.ruby-lang.org/issues/19036
+[Feature #19060]:     https://bugs.ruby-lang.org/issues/19060
+[Feature #19070]:     https://bugs.ruby-lang.org/issues/19070
+[Feature #19071]:     https://bugs.ruby-lang.org/issues/19071
+[Feature #19078]:     https://bugs.ruby-lang.org/issues/19078
+[Bug #19087]:         https://bugs.ruby-lang.org/issues/19087
+[Bug #19100]:         https://bugs.ruby-lang.org/issues/19100
+[Feature #19104]:     https://bugs.ruby-lang.org/issues/19104
+[Feature #19135]:     https://bugs.ruby-lang.org/issues/19135
+[Feature #19138]:     https://bugs.ruby-lang.org/issues/19138
+[Feature #19194]:     https://bugs.ruby-lang.org/issues/19194
+[Molinillo]:          https://github.com/CocoaPods/Molinillo
+[PubGrub]:            https://github.com/jhawthorn/pub_grub
+[GH-net-protocol-14]: https://github.com/ruby/net-protocol/pull/14
+[GH-pathname-20]:     https://github.com/ruby/pathname/pull/20
+[GH-6791]:            https://github.com/ruby/ruby/pull/6791
+[GH-6868]:            https://github.com/ruby/ruby/pull/6868
+[GH-rubygems-4475]:   https://github.com/rubygems/rubygems/pull/4475
+[GH-rubygems-6149]:   https://github.com/rubygems/rubygems/pull/6149
+[GH-rubygems-6167]:   https://github.com/rubygems/rubygems/pull/6167
+[sec-156615]:         https://hackerone.com/reports/156615
+[CVE-2021-33621]:     https://www.ruby-lang.org/en/news/2022/11/22/http-response-splitting-in-cgi-cve-2021-33621/
+[wasm/README.md]:     https://github.com/ruby/ruby/blob/master/wasm/README.md
+[ruby.wasm]:          https://github.com/ruby/ruby.wasm
diff --git a/README.ja.md b/README.ja.md
index 49cf72b5fd..93c0131690 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -1,5 +1,5 @@
 [![Actions Status: MinGW](https://github.com/ruby/ruby/workflows/MinGW/badge.svg)](https://github.com/ruby/ruby/actions?query=workflow%3A"MinGW")
-[![Actions Status: RJIT](https://github.com/ruby/ruby/workflows/RJIT/badge.svg)](https://github.com/ruby/ruby/actions?query=workflow%3A"RJIT")
+[![Actions Status: MJIT](https://github.com/ruby/ruby/workflows/MJIT/badge.svg)](https://github.com/ruby/ruby/actions?query=workflow%3A"MJIT")
 [![Actions Status: Ubuntu](https://github.com/ruby/ruby/workflows/Ubuntu/badge.svg)](https://github.com/ruby/ruby/actions?query=workflow%3A"Ubuntu")
 [![Actions Status: Windows](https://github.com/ruby/ruby/workflows/Windows/badge.svg)](https://github.com/ruby/ruby/actions?query=workflow%3A"Windows")
 [![AppVeyor status](https://ci.appveyor.com/api/projects/status/0sy8rrxut4o0k960/branch/master?svg=true)](https://ci.appveyor.com/project/ruby/ruby/branch/master)
@@ -25,7 +25,7 @@ Rubyはテキスト処理関係の能力などに優れ，Perlと同じくらい
 *   ダイナミックローディング (アーキテクチャによる)
 *   移植性が高い．多くのUnix-like/POSIX互換プラットフォーム上で動くだけでなく，Windows， macOS，
     Haikuなどの上でも動く cf.
-    https://docs.ruby-lang.org/en/master/maintainers_md.html#label-Platform+Maintainers
+    https://github.com/ruby/ruby/blob/master/doc/contributing.rdoc#platform-maintainers
 
 
 ## 入手法
@@ -49,6 +49,17 @@ https://www.ruby-lang.org/ja/downloads/
 Rubyリポジトリの本来のmasterは https://git.ruby-lang.org/ruby.git にあります．
 コミッタはこちらを使います．
 
+### Subversion
+
+古いRubyのバージョンのソースコードは次のコマンドでも取得できます．
+
+    $ svn co https://svn.ruby-lang.org/repos/ruby/branches/ruby_2_6/ ruby
+
+他のブランチの一覧は次のコマンドで見られます．
+
+    $ svn ls https://svn.ruby-lang.org/repos/ruby/branches/
+
+
 ## ホームページ
 
 RubyのホームページのURLは
@@ -59,20 +70,20 @@ https://www.ruby-lang.org/
 
 ## メーリングリスト
 
-Rubyのメーリングリストがあります．参加希望の方は [ruby-list-request@ml.ruby-lang.org] まで件名に
+Rubyのメーリングリストがあります．参加希望の方は [ruby-list-request@ruby-lang.org] まで本文に
 
-    join
+    subscribe
 
 と書いて送って下さい．
 
 Ruby開発者向けメーリングリストもあります．こちらではrubyのバグ，将来の仕様拡張など実装上の問題について議論されています．
-参加希望の方は [ruby-dev-request@ml.ruby-lang.org] までruby-listと同様の方法でメールしてください．
+参加希望の方は [ruby-dev-request@ruby-lang.org] までruby-listと同様の方法でメールしてください．
 
 Ruby拡張モジュールについて話し合うruby-extメーリングリストと数学関係の話題について話し合うruby-mathメーリングリストと
 英語でrubyについて話し合うruby-talkメーリングリストもあります．参加方法はどれも同じです．
 
-[ruby-list-request@ml.ruby-lang.org]: mailto:ruby-list-request@ml.ruby-lang.org?subject=join
-[ruby-dev-request@ml.ruby-lang.org]: mailto:ruby-dev-request@ml.ruby-lang.org?subject=join
+[ruby-list-request@ruby-lang.org]: mailto:ruby-list-request@ruby-lang.org?subject=Join%20Ruby%20Mailing%20List&body=subscribe
+[ruby-dev-request@ruby-lang.org]: mailto:ruby-dev-request@ruby-lang.org?subject=Join%20Ruby%20Mailing%20List&body=subscribe
 
 ## コンパイル・インストール
 
@@ -151,7 +162,7 @@ UNIXであれば `configure` がほとんどの差異を吸収してくれるは
 
 ## 配布条件
 
-[COPYING.ja](https://docs.ruby-lang.org/en/master/COPYING_ja.html) ファイルを参照してください．
+[COPYING.ja](COPYING.ja) ファイルを参照してください．
 
 ## フィードバック
 
diff --git a/README.md b/README.md
index eb24a73ee3..c445448c71 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,8 @@
 [![Actions Status: MinGW](https://github.com/ruby/ruby/workflows/MinGW/badge.svg)](https://github.com/ruby/ruby/actions?query=workflow%3A"MinGW")
-[![Actions Status: RJIT](https://github.com/ruby/ruby/workflows/RJIT/badge.svg)](https://github.com/ruby/ruby/actions?query=workflow%3A"RJIT")
+[![Actions Status: MJIT](https://github.com/ruby/ruby/workflows/MJIT/badge.svg)](https://github.com/ruby/ruby/actions?query=workflow%3A"MJIT")
 [![Actions Status: Ubuntu](https://github.com/ruby/ruby/workflows/Ubuntu/badge.svg)](https://github.com/ruby/ruby/actions?query=workflow%3A"Ubuntu")
 [![Actions Status: Windows](https://github.com/ruby/ruby/workflows/Windows/badge.svg)](https://github.com/ruby/ruby/actions?query=workflow%3A"Windows")
+[![AppVeyor status](https://ci.appveyor.com/api/projects/status/0sy8rrxut4o0k960/branch/master?svg=true)](https://ci.appveyor.com/project/ruby/ruby/branch/master)
 [![Travis Status](https://app.travis-ci.com/ruby/ruby.svg?branch=master)](https://app.travis-ci.com/ruby/ruby)
 
 # What is Ruby?
@@ -23,20 +24,15 @@ It is simple, straightforward, and extensible.
 * Dynamic Loading of Object Files (on some architectures)
 * Highly Portable (works on many Unix-like/POSIX compatible platforms as
   well as Windows, macOS, etc.) cf.
-    https://docs.ruby-lang.org/en/master/maintainers_md.html#label-Platform+Maintainers
+  https://github.com/ruby/ruby/blob/master/doc/maintainers.rdoc#label-Platform+Maintainers
 
-## How to get Ruby
+## How to get Ruby with Git
 
 For a complete list of ways to install Ruby, including using third-party tools
 like rvm, see:
 
 https://www.ruby-lang.org/en/downloads/
 
-You can download release packages and the snapshot of the repository. If you want to
-download whole versions of Ruby, please visit https://www.ruby-lang.org/en/downloads/releases/.
-
-### Download with Git
-
 The mirror of the Ruby source tree can be checked out with the following command:
 
     $ git clone https://github.com/ruby/ruby.git
@@ -51,7 +47,7 @@ if you are a committer.
 
 ## How to build
 
-See [Building Ruby](https://docs.ruby-lang.org/en/master/contributing/building_ruby_md.html)
+see [Building Ruby](doc/contributing/building_ruby.md)
 
 ## Ruby home page
 
@@ -67,11 +63,11 @@ https://www.ruby-lang.org/
 There is a mailing list to discuss Ruby. To subscribe to this list, please
 send the following phrase:
 
-    join
+    subscribe
 
-in the mail subject (not body) to the address [ruby-talk-request@ml.ruby-lang.org].
+in the mail body (not subject) to the address [ruby-talk-request@ruby-lang.org].
 
-[ruby-talk-request@ml.ruby-lang.org]: mailto:ruby-talk-request@ml.ruby-lang.org?subject=join
+[ruby-talk-request@ruby-lang.org]: mailto:ruby-talk-request@ruby-lang.org?subject=Join%20Ruby%20Mailing%20List&body=subscribe
 
 ## Copying
 
diff --git a/addr2line.c b/addr2line.c
index 02a3e617a6..e5f25293e2 100644
--- a/addr2line.c
+++ b/addr2line.c
@@ -8,14 +8,10 @@
 
 **********************************************************************/
 
-#if defined(__clang__) && defined(__has_warning)
-#if __has_warning("-Wgnu-empty-initializer")
+#if defined(__clang__)
 #pragma clang diagnostic ignored "-Wgnu-empty-initializer"
-#endif
-#if __has_warning("-Wgcc-compat")
 #pragma clang diagnostic ignored "-Wgcc-compat"
 #endif
-#endif
 
 #include "ruby/internal/config.h"
 #include "ruby/defines.h"
@@ -61,21 +57,8 @@ void *alloca();
 #   endif
 #  endif /* AIX */
 # endif	/* HAVE_ALLOCA_H */
-# ifndef UNREACHABLE
-#  define UNREACHABLE __builtin_unreachable()
-# endif
-# ifndef UNREACHABLE_RETURN
-#  define UNREACHABLE_RETURN(_) __builtin_unreachable()
-# endif
 #endif /* __GNUC__ */
 
-#ifndef UNREACHABLE
-# define UNREACHABLE abort()
-#endif
-#ifndef UNREACHABLE_RETURN
-# define UNREACHABLE_RETURN(_) return (abort(), (_))
-#endif
-
 #ifdef HAVE_DLADDR
 # include <dlfcn.h>
 #endif
@@ -144,7 +127,7 @@ void *alloca();
 #define DW_LNE_define_file              0x03
 #define DW_LNE_set_discriminator        0x04  /* DWARF4 */
 
-#define kprintf(...) fprintf(errout, "" __VA_ARGS__)
+PRINTF_ARGS(static int kprintf(const char *fmt, ...), 1, 2);
 
 typedef struct line_info {
     const char *dirname;
@@ -201,7 +184,7 @@ obj_dwarf_section_at(obj_info_t *obj, int n)
         &obj->debug_line_str
     };
     if (n < 0 || DWARF_SECTION_COUNT <= n) {
-        UNREACHABLE_RETURN(0);
+        abort();
     }
     return ary[n];
 }
@@ -254,7 +237,7 @@ sleb128(const char **p)
 }
 
 static const char *
-get_nth_dirname(unsigned long dir, const char *p, FILE *errout)
+get_nth_dirname(unsigned long dir, const char *p)
 {
     if (!dir--) {
 	return "";
@@ -271,14 +254,10 @@ get_nth_dirname(unsigned long dir, const char *p, FILE *errout)
     return p;
 }
 
-static const char *parse_ver5_debug_line_header(
-    const char *p, int idx, uint8_t format,
-    obj_info_t *obj, const char **out_path,
-    uint64_t *out_directory_index, FILE *errout);
+static const char *parse_ver5_debug_line_header(const char *p, int idx, uint8_t format, obj_info_t *obj, const char **out_path, uint64_t *out_directory_index);
 
 static void
-fill_filename(int file, uint8_t format, uint16_t version, const char *include_directories,
-              const char *filenames, line_info_t *line, obj_info_t *obj, FILE *errout)
+fill_filename(int file, uint8_t format, uint16_t version, const char *include_directories, const char *filenames, line_info_t *line, obj_info_t *obj)
 {
     int i;
     const char *p = filenames;
@@ -287,9 +266,9 @@ fill_filename(int file, uint8_t format, uint16_t version, const char *include_di
     if (version >= 5) {
         const char *path;
         uint64_t directory_index = -1;
-        parse_ver5_debug_line_header(filenames, file, format, obj, &path, &directory_index, errout);
+        parse_ver5_debug_line_header(filenames, file, format, obj, &path, &directory_index);
         line->filename = path;
-        parse_ver5_debug_line_header(include_directories, (int)directory_index, format, obj, &path, NULL, errout);
+        parse_ver5_debug_line_header(include_directories, (int)directory_index, format, obj, &path, NULL);
         line->dirname = path;
     }
     else {
@@ -311,7 +290,7 @@ fill_filename(int file, uint8_t format, uint16_t version, const char *include_di
 
             if (i == file) {
                 line->filename = filename;
-                line->dirname = get_nth_dirname(dir, include_directories, errout);
+                line->dirname = get_nth_dirname(dir, include_directories);
             }
         }
     }
@@ -320,7 +299,7 @@ fill_filename(int file, uint8_t format, uint16_t version, const char *include_di
 static void
 fill_line(int num_traces, void **traces, uintptr_t addr, int file, int line,
 	  uint8_t format, uint16_t version, const char *include_directories, const char *filenames,
-	  obj_info_t *obj, line_info_t *lines, int offset, FILE *errout)
+	  obj_info_t *obj, line_info_t *lines, int offset)
 {
     int i;
     addr += obj->base_addr - obj->vmaddr;
@@ -329,7 +308,7 @@ fill_line(int num_traces, void **traces, uintptr_t addr, int file, int line,
 	/* We assume one line code doesn't result >100 bytes of native code.
        We may want more reliable way eventually... */
 	if (addr < a && a < addr + 100) {
-	    fill_filename(file, format, version, include_directories, filenames, &lines[i], obj, errout);
+	    fill_filename(file, format, version, include_directories, filenames, &lines[i], obj);
 	    lines[i].line = line;
 	}
     }
@@ -354,7 +333,7 @@ struct LineNumberProgramHeader {
 };
 
 static int
-parse_debug_line_header(obj_info_t *obj, const char **pp, struct LineNumberProgramHeader *header, FILE *errout)
+parse_debug_line_header(obj_info_t *obj, const char **pp, struct LineNumberProgramHeader *header)
 {
     const char *p = *pp;
     header->unit_length = *(uint32_t *)p;
@@ -400,7 +379,7 @@ parse_debug_line_header(obj_info_t *obj, const char **pp, struct LineNumberProgr
 
     if (header->version >= 5) {
         header->include_directories = p;
-        p = parse_ver5_debug_line_header(p, -1, header->format, obj, NULL, NULL, errout);
+        p = parse_ver5_debug_line_header(p, -1, header->format, obj, NULL, NULL);
         header->filenames = p;
     }
     else {
@@ -427,7 +406,7 @@ parse_debug_line_header(obj_info_t *obj, const char **pp, struct LineNumberProgr
 
 static int
 parse_debug_line_cu(int num_traces, void **traces, const char **debug_line,
-		obj_info_t *obj, line_info_t *lines, int offset, FILE *errout)
+		obj_info_t *obj, line_info_t *lines, int offset)
 {
     const char *p = (const char *)*debug_line;
     struct LineNumberProgramHeader header;
@@ -444,7 +423,7 @@ parse_debug_line_cu(int num_traces, void **traces, const char **debug_line,
     /* int epilogue_begin = 0; */
     /* unsigned int isa = 0; */
 
-    if (parse_debug_line_header(obj, &p, &header, errout))
+    if (parse_debug_line_header(obj, &p, &header))
         return -1;
     is_stmt = header.default_is_stmt;
 
@@ -455,7 +434,7 @@ parse_debug_line_cu(int num_traces, void **traces, const char **debug_line,
                   header.version,                                   \
                   header.include_directories,                       \
                   header.filenames,                                 \
-		  obj, lines, offset, errout);                      \
+		  obj, lines, offset);				    \
 	/*basic_block = prologue_end = epilogue_begin = 0;*/	    \
     } while (0)
 
@@ -555,11 +534,11 @@ parse_debug_line_cu(int num_traces, void **traces, const char **debug_line,
 static int
 parse_debug_line(int num_traces, void **traces,
 		 const char *debug_line, unsigned long size,
-		 obj_info_t *obj, line_info_t *lines, int offset, FILE *errout)
+		 obj_info_t *obj, line_info_t *lines, int offset)
 {
     const char *debug_line_end = debug_line + size;
     while (debug_line < debug_line_end) {
-	if (parse_debug_line_cu(num_traces, traces, &debug_line, obj, lines, offset, errout))
+	if (parse_debug_line_cu(num_traces, traces, &debug_line, obj, lines, offset))
 	    return -1;
     }
     if (debug_line != debug_line_end) {
@@ -572,7 +551,7 @@ parse_debug_line(int num_traces, void **traces,
 /* read file and fill lines */
 static uintptr_t
 fill_lines(int num_traces, void **traces, int check_debuglink,
-	   obj_info_t **objp, line_info_t *lines, int offset, FILE *errout);
+	   obj_info_t **objp, line_info_t *lines, int offset);
 
 static void
 append_obj(obj_info_t **objp)
@@ -600,7 +579,7 @@ append_obj(obj_info_t **objp)
 // check the path pattern of "/usr/lib/debug/usr/bin/ruby.debug"
 static void
 follow_debuglink(const char *debuglink, int num_traces, void **traces,
-		 obj_info_t **objp, line_info_t *lines, int offset, FILE *errout)
+		 obj_info_t **objp, line_info_t *lines, int offset)
 {
     static const char global_debug_dir[] = "/usr/lib/debug";
     const size_t global_debug_dir_len = sizeof(global_debug_dir) - 1;
@@ -626,13 +605,13 @@ follow_debuglink(const char *debuglink, int num_traces, void **traces,
     o2 = *objp;
     o2->base_addr = o1->base_addr;
     o2->path = o1->path;
-    fill_lines(num_traces, traces, 0, objp, lines, offset, errout);
+    fill_lines(num_traces, traces, 0, objp, lines, offset);
 }
 
 // check the path pattern of "/usr/lib/debug/.build-id/ab/cdef1234.debug"
 static void
 follow_debuglink_build_id(const char *build_id, size_t build_id_size, int num_traces, void **traces,
-                          obj_info_t **objp, line_info_t *lines, int offset, FILE *errout)
+                          obj_info_t **objp, line_info_t *lines, int offset)
 {
     static const char global_debug_dir[] = "/usr/lib/debug/.build-id/";
     const size_t global_debug_dir_len = sizeof(global_debug_dir) - 1;
@@ -657,7 +636,7 @@ follow_debuglink_build_id(const char *build_id, size_t build_id_size, int num_tr
     o2 = *objp;
     o2->base_addr = o1->base_addr;
     o2->path = o1->path;
-    fill_lines(num_traces, traces, 0, objp, lines, offset, errout);
+    fill_lines(num_traces, traces, 0, objp, lines, offset);
 }
 #endif
 
@@ -861,11 +840,7 @@ enum
     DW_FORM_addrx1 = 0x29,
     DW_FORM_addrx2 = 0x2a,
     DW_FORM_addrx3 = 0x2b,
-    DW_FORM_addrx4 = 0x2c,
-
-    /* GNU extensions for referring to .gnu_debugaltlink dwz-compressed info */
-    DW_FORM_GNU_ref_alt = 0x1f20,
-    DW_FORM_GNU_strp_alt = 0x1f21
+    DW_FORM_addrx4 = 0x2c
 };
 
 /* Range list entry encodings */
@@ -1083,13 +1058,13 @@ di_read_debug_abbrev_cu(DebugInfoReader *reader)
 }
 
 static int
-di_read_debug_line_cu(DebugInfoReader *reader, FILE *errout)
+di_read_debug_line_cu(DebugInfoReader *reader)
 {
     const char *p;
     struct LineNumberProgramHeader header;
 
     p = (const char *)reader->debug_line_cu_end;
-    if (parse_debug_line_header(reader->obj, &p, &header, errout))
+    if (parse_debug_line_header(reader->obj, &p, &header))
         return -1;
 
     reader->debug_line_cu_end = (char *)header.cu_end;
@@ -1169,32 +1144,25 @@ resolve_strx(DebugInfoReader *reader, uint64_t idx)
     return reader->obj->debug_str.ptr + off;
 }
 
-static bool
-debug_info_reader_read_addr_value_member(DebugInfoReader *reader, DebugInfoValue *v, int size)
+static void
+debug_info_reader_read_addr_value(DebugInfoReader *reader, DebugInfoValue *v)
 {
-    if (size == 4) {
+    if (reader->address_size == 4) {
         set_uint_value(v, read_uint32(&reader->p));
-    } else if (size == 8) {
+    } else if (reader->address_size == 8) {
         set_uint_value(v, read_uint64(&reader->p));
     } else {
-        return false;
+        fprintf(stderr,"unknown address_size:%d", reader->address_size);
+        abort();
     }
-    return true;
 }
 
-#define debug_info_reader_read_addr_value(reader, v, mem) \
-    if (!debug_info_reader_read_addr_value_member((reader), (v), (reader)->mem)) { \
-        kprintf("unknown " #mem ":%d", (reader)->mem); \
-        return false; \
-    }
-
-
-static bool
-debug_info_reader_read_value(DebugInfoReader *reader, uint64_t form, DebugInfoValue *v, FILE *errout)
+static void
+debug_info_reader_read_value(DebugInfoReader *reader, uint64_t form, DebugInfoValue *v)
 {
     switch (form) {
       case DW_FORM_addr:
-        debug_info_reader_read_addr_value(reader, v, address_size);
+        debug_info_reader_read_addr_value(reader, v);
         break;
       case DW_FORM_block2:
         v->size = read_uint16(&reader->p);
@@ -1249,9 +1217,16 @@ debug_info_reader_read_value(DebugInfoReader *reader, uint64_t form, DebugInfoVa
         if (reader->current_version <= 2) {
             // DWARF Version 2 specifies that references have
             // the same size as an address on the target system
-            debug_info_reader_read_addr_value(reader, v, address_size);
+            debug_info_reader_read_addr_value(reader, v);
         } else {
-            debug_info_reader_read_addr_value(reader, v, format);
+            if (reader->format == 4) {
+                set_uint_value(v, read_uint32(&reader->p));
+            } else if (reader->format == 8) {
+                set_uint_value(v, read_uint64(&reader->p));
+            } else {
+                fprintf(stderr,"unknown format:%d", reader->format);
+                abort();
+            }
         }
         break;
       case DW_FORM_ref1:
@@ -1352,28 +1327,20 @@ debug_info_reader_read_value(DebugInfoReader *reader, uint64_t form, DebugInfoVa
       case DW_FORM_addrx4:
         set_addr_idx_value(v, read_uint32(&reader->p));
         break;
-      /* we have no support for actually reading the real values of these refs out
-       * of the .gnu_debugaltlink dwz-compressed debuginfo at the moment, but "read"
-       * them anyway so that we advance the reader by the right amount. */
-      case DW_FORM_GNU_ref_alt:
-      case DW_FORM_GNU_strp_alt:
-        read_uint(reader);
-        set_uint_value(v, 0);
-        break;
       case 0:
         goto fail;
         break;
     }
-    return true;
+    return;
 
   fail:
-    kprintf("%d: unsupported form: %#"PRIx64"\n", __LINE__, form);
-    return false;
+    fprintf(stderr, "%d: unsupported form: %#"PRIx64"\n", __LINE__, form);
+    exit(1);
 }
 
 /* find abbrev in current compilation unit */
 static const char *
-di_find_abbrev(DebugInfoReader *reader, uint64_t abbrev_number, FILE *errout)
+di_find_abbrev(DebugInfoReader *reader, uint64_t abbrev_number)
 {
     const char *p;
     if (abbrev_number < ABBREV_TABLE_SIZE) {
@@ -1386,8 +1353,8 @@ di_find_abbrev(DebugInfoReader *reader, uint64_t abbrev_number, FILE *errout)
     di_skip_die_attributes(&p);
     for (uint64_t n = uleb128(&p); abbrev_number != n; n = uleb128(&p)) {
         if (n == 0) {
-            kprintf("%d: Abbrev Number %"PRId64" not found\n",__LINE__, abbrev_number);
-            return NULL;
+            fprintf(stderr,"%d: Abbrev Number %"PRId64" not found\n",__LINE__, abbrev_number);
+            exit(1);
         }
         uleb128(&p); /* tag */
         p++; /* has_children */
@@ -1398,52 +1365,52 @@ di_find_abbrev(DebugInfoReader *reader, uint64_t abbrev_number, FILE *errout)
 
 #if 0
 static void
-hexdump0(const unsigned char *p, size_t n, FILE *errout)
+hexdump0(const unsigned char *p, size_t n)
 {
     size_t i;
-    kprintf("     0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F\n");
+    fprintf(stderr, "     0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F\n");
     for (i=0; i < n; i++){
         switch (i & 15) {
           case 0:
-            kprintf("%02" PRIdSIZE ": %02X ", i/16, p[i]);
+            fprintf(stderr, "%02" PRIdSIZE ": %02X ", i/16, p[i]);
             break;
           case 15:
-            kprintf("%02X\n", p[i]);
+            fprintf(stderr, "%02X\n", p[i]);
             break;
           default:
-            kprintf("%02X ", p[i]);
+            fprintf(stderr, "%02X ", p[i]);
             break;
         }
     }
     if ((i & 15) != 15) {
-        kprintf("\n");
+        fprintf(stderr, "\n");
     }
 }
-#define hexdump(p,n,e) hexdump0((const unsigned char *)p, n, e)
+#define hexdump(p,n) hexdump0((const unsigned char *)p, n)
 
 static void
-div_inspect(DebugInfoValue *v, FILE *errout)
+div_inspect(DebugInfoValue *v)
 {
     switch (v->type) {
       case VAL_uint:
-        kprintf("%d: type:%d size:%" PRIxSIZE " v:%"PRIx64"\n",__LINE__,v->type,v->size,v->as.uint64);
+        fprintf(stderr,"%d: type:%d size:%" PRIxSIZE " v:%"PRIx64"\n",__LINE__,v->type,v->size,v->as.uint64);
         break;
       case VAL_int:
-        kprintf("%d: type:%d size:%" PRIxSIZE " v:%"PRId64"\n",__LINE__,v->type,v->size,(int64_t)v->as.uint64);
+        fprintf(stderr,"%d: type:%d size:%" PRIxSIZE " v:%"PRId64"\n",__LINE__,v->type,v->size,(int64_t)v->as.uint64);
         break;
       case VAL_cstr:
-        kprintf("%d: type:%d size:%" PRIxSIZE " v:'%s'\n",__LINE__,v->type,v->size,v->as.ptr);
+        fprintf(stderr,"%d: type:%d size:%" PRIxSIZE " v:'%s'\n",__LINE__,v->type,v->size,v->as.ptr);
         break;
       case VAL_data:
-        kprintf("%d: type:%d size:%" PRIxSIZE " v:\n",__LINE__,v->type,v->size);
-        hexdump(v->as.ptr, 16, errout);
+        fprintf(stderr,"%d: type:%d size:%" PRIxSIZE " v:\n",__LINE__,v->type,v->size);
+        hexdump(v->as.ptr, 16);
         break;
     }
 }
 #endif
 
 static DIE *
-di_read_die(DebugInfoReader *reader, DIE *die, FILE *errout)
+di_read_die(DebugInfoReader *reader, DIE *die)
 {
     uint64_t abbrev_number = uleb128(&reader->p);
     if (abbrev_number == 0) {
@@ -1451,7 +1418,7 @@ di_read_die(DebugInfoReader *reader, DIE *die, FILE *errout)
         return NULL;
     }
 
-    if (!(reader->q = di_find_abbrev(reader, abbrev_number, errout))) return NULL;
+    reader->q = di_find_abbrev(reader, abbrev_number);
 
     die->pos = reader->p - reader->obj->debug_info.ptr - 1;
     die->tag = (int)uleb128(&reader->q); /* tag */
@@ -1463,26 +1430,26 @@ di_read_die(DebugInfoReader *reader, DIE *die, FILE *errout)
 }
 
 static DebugInfoValue *
-di_read_record(DebugInfoReader *reader, DebugInfoValue *vp, FILE *errout)
+di_read_record(DebugInfoReader *reader, DebugInfoValue *vp)
 {
     uint64_t at = uleb128(&reader->q);
     uint64_t form = uleb128(&reader->q);
     if (!at || !form) return NULL;
     vp->at = at;
     vp->form = form;
-    if (!debug_info_reader_read_value(reader, form, vp, errout)) return NULL;
+    debug_info_reader_read_value(reader, form, vp);
     return vp;
 }
 
-static bool
-di_skip_records(DebugInfoReader *reader, FILE *errout)
+static void
+di_skip_records(DebugInfoReader *reader)
 {
     for (;;) {
-        DebugInfoValue v = {{0}};
+        DebugInfoValue v = {{}};
         uint64_t at = uleb128(&reader->q);
         uint64_t form = uleb128(&reader->q);
-        if (!at || !form) return true;
-        if (!debug_info_reader_read_value(reader, form, &v, errout)) return false;
+        if (!at || !form) return;
+        debug_info_reader_read_value(reader, form, &v);
     }
 }
 
@@ -1494,14 +1461,13 @@ typedef struct addr_header {
     /* uint8_t segment_selector_size; */
 } addr_header_t;
 
-static bool
-addr_header_init(obj_info_t *obj, addr_header_t *header, FILE *errout)
-{
+static void
+addr_header_init(obj_info_t *obj, addr_header_t *header) {
     const char *p = obj->debug_addr.ptr;
 
     header->ptr = p;
 
-    if (!p) return true;
+    if (!p) return;
 
     header->unit_length = *(uint32_t *)p;
     p += sizeof(uint32_t);
@@ -1515,12 +1481,7 @@ addr_header_init(obj_info_t *obj, addr_header_t *header, FILE *errout)
 
     p += 2; /* version */
     header->address_size = *p++;
-    if (header->address_size != 4 && header->address_size != 8) {
-        kprintf("unknown address_size:%d", header->address_size);
-        return false;
-    }
     p++; /* segment_selector_size */
-    return true;
 }
 
 static uint64_t
@@ -1540,12 +1501,11 @@ typedef struct rnglists_header {
     uint32_t offset_entry_count;
 } rnglists_header_t;
 
-static bool
-rnglists_header_init(obj_info_t *obj, rnglists_header_t *header, FILE *errout)
-{
+static void
+rnglists_header_init(obj_info_t *obj, rnglists_header_t *header) {
     const char *p = obj->debug_rnglists.ptr;
 
-    if (!p) return true;
+    if (!p) return;
 
     header->unit_length = *(uint32_t *)p;
     p += sizeof(uint32_t);
@@ -1559,13 +1519,8 @@ rnglists_header_init(obj_info_t *obj, rnglists_header_t *header, FILE *errout)
 
     p += 2; /* version */
     header->address_size = *p++;
-    if (header->address_size != 4 && header->address_size != 8) {
-        kprintf("unknown address_size:%d", header->address_size);
-        return false;
-    }
     p++; /* segment_selector_size */
     header->offset_entry_count = *(uint32_t *)p;
-    return true;
 }
 
 typedef struct {
@@ -1609,23 +1564,26 @@ ranges_set(ranges_t *ptr, DebugInfoValue *v, addr_header_t *addr_header, uint64_
 }
 
 static uint64_t
-read_dw_form_addr(DebugInfoReader *reader, const char **ptr, FILE *errout)
+read_dw_form_addr(DebugInfoReader *reader, const char **ptr)
 {
     const char *p = *ptr;
     *ptr = p + reader->address_size;
     if (reader->address_size == 4) {
         return read_uint32(&p);
-    } else {
+    } else if (reader->address_size == 8) {
         return read_uint64(&p);
+    } else {
+        fprintf(stderr,"unknown address_size:%d", reader->address_size);
+        abort();
     }
 }
 
 static uintptr_t
-ranges_include(DebugInfoReader *reader, ranges_t *ptr, uint64_t addr, rnglists_header_t *rnglists_header, FILE *errout)
+ranges_include(DebugInfoReader *reader, ranges_t *ptr, uint64_t addr, rnglists_header_t *rnglists_header)
 {
     if (ptr->high_pc_set) {
         if (ptr->ranges_set || !ptr->low_pc_set) {
-            return UINTPTR_MAX;
+            exit(1);
         }
         if (ptr->low_pc <= addr && addr <= ptr->high_pc) {
             return (uintptr_t)ptr->low_pc;
@@ -1674,15 +1632,15 @@ ranges_include(DebugInfoReader *reader, ranges_t *ptr, uint64_t addr, rnglists_h
                     to = (uintptr_t)base + uleb128(&p);
                     break;
                   case DW_RLE_base_address:
-                    base = read_dw_form_addr(reader, &p, errout);
+                    base = read_dw_form_addr(reader, &p);
                     base_valid = true;
                     break;
                   case DW_RLE_start_end:
-                    from = (uintptr_t)read_dw_form_addr(reader, &p, errout);
-                    to = (uintptr_t)read_dw_form_addr(reader, &p, errout);
+                    from = (uintptr_t)read_dw_form_addr(reader, &p);
+                    to = (uintptr_t)read_dw_form_addr(reader, &p);
                     break;
                   case DW_RLE_start_length:
-                    from = (uintptr_t)read_dw_form_addr(reader, &p, errout);
+                    from = (uintptr_t)read_dw_form_addr(reader, &p);
                     to = from + uleb128(&p);
                     break;
                 }
@@ -1690,7 +1648,7 @@ ranges_include(DebugInfoReader *reader, ranges_t *ptr, uint64_t addr, rnglists_h
                     return from;
                 }
             }
-            return 0;
+            return false;
         }
         p = reader->obj->debug_ranges.ptr + ptr->ranges;
         for (;;) {
@@ -1711,42 +1669,42 @@ ranges_include(DebugInfoReader *reader, ranges_t *ptr, uint64_t addr, rnglists_h
             return (uintptr_t)ptr->low_pc;
         }
     }
-    return 0;
+    return false;
 }
 
 #if 0
 static void
-ranges_inspect(DebugInfoReader *reader, ranges_t *ptr, FILE *errout)
+ranges_inspect(DebugInfoReader *reader, ranges_t *ptr)
 {
     if (ptr->high_pc_set) {
         if (ptr->ranges_set || !ptr->low_pc_set) {
-            kprintf("low_pc_set:%d high_pc_set:%d ranges_set:%d\n",ptr->low_pc_set,ptr->high_pc_set,ptr->ranges_set);
-            return;
+            fprintf(stderr,"low_pc_set:%d high_pc_set:%d ranges_set:%d\n",ptr->low_pc_set,ptr->high_pc_set,ptr->ranges_set);
+            exit(1);
         }
-        kprintf("low_pc:%"PRIx64" high_pc:%"PRIx64"\n",ptr->low_pc,ptr->high_pc);
+        fprintf(stderr,"low_pc:%"PRIx64" high_pc:%"PRIx64"\n",ptr->low_pc,ptr->high_pc);
     }
     else if (ptr->ranges_set) {
         char *p = reader->obj->debug_ranges.ptr + ptr->ranges;
-        kprintf("low_pc:%"PRIx64" ranges:%"PRIx64" %lx ",ptr->low_pc,ptr->ranges, p-reader->obj->mapped);
+        fprintf(stderr,"low_pc:%"PRIx64" ranges:%"PRIx64" %lx ",ptr->low_pc,ptr->ranges, p-reader->obj->mapped);
         for (;;) {
             uintptr_t from = read_uintptr(&p);
             uintptr_t to = read_uintptr(&p);
             if (!from && !to) break;
-            kprintf("%"PRIx64"-%"PRIx64" ",ptr->low_pc+from,ptr->low_pc+to);
+            fprintf(stderr,"%"PRIx64"-%"PRIx64" ",ptr->low_pc+from,ptr->low_pc+to);
         }
-        kprintf("\n");
+        fprintf(stderr,"\n");
     }
     else if (ptr->low_pc_set) {
-        kprintf("low_pc:%"PRIx64"\n",ptr->low_pc);
+        fprintf(stderr,"low_pc:%"PRIx64"\n",ptr->low_pc);
     }
     else {
-        kprintf("empty\n");
+        fprintf(stderr,"empty\n");
     }
 }
 #endif
 
 static int
-di_read_cu(DebugInfoReader *reader, FILE *errout)
+di_read_cu(DebugInfoReader *reader)
 {
     uint64_t unit_length;
     uint16_t version;
@@ -1773,23 +1731,23 @@ di_read_cu(DebugInfoReader *reader, FILE *errout)
         debug_abbrev_offset = read_uint(reader);
         reader->address_size = read_uint8(&reader->p);
     }
-    if (reader->address_size != 4 && reader->address_size != 8) {
-        kprintf("unknown address_size:%d", reader->address_size);
-        return -1;
-    }
     reader->q0 = reader->obj->debug_abbrev.ptr + debug_abbrev_offset;
 
     reader->level = 0;
     di_read_debug_abbrev_cu(reader);
-    if (di_read_debug_line_cu(reader, errout)) return -1;
+    if (di_read_debug_line_cu(reader)) return -1;
 
+#if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER_BUILD_DATE)
+    /* Though DWARF specifies "the applicable base address defaults to the base
+       address of the compilation unit", but GCC seems to use zero as default */
+#else
     do {
         DIE die;
 
-        if (!di_read_die(reader, &die, errout)) continue;
+        if (!di_read_die(reader, &die)) continue;
 
         if (die.tag != DW_TAG_compile_unit) {
-            if (!di_skip_records(reader, errout)) return -1;
+            di_skip_records(reader);
             break;
         }
 
@@ -1797,11 +1755,11 @@ di_read_cu(DebugInfoReader *reader, FILE *errout)
         reader->current_addr_base = 0;
         reader->current_rnglists_base = 0;
 
-        DebugInfoValue low_pc = {{0}};
+        DebugInfoValue low_pc = {{}};
         /* enumerate abbrev */
         for (;;) {
-            DebugInfoValue v = {{0}};
-            if (!di_read_record(reader, &v, errout)) break;
+            DebugInfoValue v = {{}};
+            if (!di_read_record(reader, &v)) break;
             switch (v.at) {
               case DW_AT_low_pc:
                 // clang may output DW_AT_addr_base after DW_AT_low_pc.
@@ -1826,19 +1784,19 @@ di_read_cu(DebugInfoReader *reader, FILE *errout)
                 break;
             case VAL_addr:
                 {
-                    addr_header_t header = {0};
-                    if (!addr_header_init(reader->obj, &header, errout)) return -1;
+                    addr_header_t header;
+                    addr_header_init(reader->obj, &header);
                     reader->current_low_pc = read_addr(&header, reader->current_addr_base, low_pc.as.addr_idx);
                 }
                 break;
         }
     } while (0);
-
+#endif
     return 0;
 }
 
 static void
-read_abstract_origin(DebugInfoReader *reader, uint64_t form, uint64_t abstract_origin, line_info_t *line, FILE *errout)
+read_abstract_origin(DebugInfoReader *reader, uint64_t form, uint64_t abstract_origin, line_info_t *line)
 {
     const char *p = reader->p;
     const char *q = reader->q;
@@ -1863,12 +1821,12 @@ read_abstract_origin(DebugInfoReader *reader, uint64_t form, uint64_t abstract_o
       default:
         goto finish;
     }
-    if (!di_read_die(reader, &die, errout)) goto finish;
+    if (!di_read_die(reader, &die)) goto finish;
 
     /* enumerate abbrev */
     for (;;) {
-        DebugInfoValue v = {{0}};
-        if (!di_read_record(reader, &v, errout)) break;
+        DebugInfoValue v = {{}};
+        if (!di_read_record(reader, &v)) break;
         switch (v.at) {
           case DW_AT_name:
             line->sname = get_cstr_value(&v);
@@ -1882,44 +1840,43 @@ read_abstract_origin(DebugInfoReader *reader, uint64_t form, uint64_t abstract_o
     reader->level = level;
 }
 
-static bool
+static void
 debug_info_read(DebugInfoReader *reader, int num_traces, void **traces,
-                line_info_t *lines, int offset, FILE *errout)
-{
+         line_info_t *lines, int offset) {
 
-    addr_header_t addr_header = {0};
-    if (!addr_header_init(reader->obj, &addr_header, errout)) return false;
+    addr_header_t addr_header = {};
+    addr_header_init(reader->obj, &addr_header);
 
-    rnglists_header_t rnglists_header = {0};
-    if (!rnglists_header_init(reader->obj, &rnglists_header, errout)) return false;
+    rnglists_header_t rnglists_header = {};
+    rnglists_header_init(reader->obj, &rnglists_header);
 
     while (reader->p < reader->cu_end) {
         DIE die;
-        ranges_t ranges = {0};
-        line_info_t line = {0};
+        ranges_t ranges = {};
+        line_info_t line = {};
 
-        if (!di_read_die(reader, &die, errout)) continue;
-        /* kprintf("%d:%tx: <%d>\n",__LINE__,die.pos,reader->level,die.tag); */
+        if (!di_read_die(reader, &die)) continue;
+        /* fprintf(stderr,"%d:%tx: <%d>\n",__LINE__,die.pos,reader->level,die.tag); */
 
         if (die.tag != DW_TAG_subprogram && die.tag != DW_TAG_inlined_subroutine) {
           skip_die:
-            if (!di_skip_records(reader, errout)) return false;
+            di_skip_records(reader);
             continue;
         }
 
         /* enumerate abbrev */
         for (;;) {
-            DebugInfoValue v = {{0}};
+            DebugInfoValue v = {{}};
             /* ptrdiff_t pos = reader->p - reader->p0; */
-            if (!di_read_record(reader, &v, errout)) break;
-            /* kprintf("\n%d:%tx: AT:%lx FORM:%lx\n",__LINE__,pos,v.at,v.form); */
-            /* div_inspect(&v, errout); */
+            if (!di_read_record(reader, &v)) break;
+            /* fprintf(stderr,"\n%d:%tx: AT:%lx FORM:%lx\n",__LINE__,pos,v.at,v.form); */
+            /* div_inspect(&v); */
             switch (v.at) {
               case DW_AT_name:
                 line.sname = get_cstr_value(&v);
                 break;
               case DW_AT_call_file:
-                fill_filename((int)v.as.uint64, reader->debug_line_format, reader->debug_line_version, reader->debug_line_directories, reader->debug_line_files, &line, reader->obj, errout);
+                fill_filename((int)v.as.uint64, reader->debug_line_format, reader->debug_line_version, reader->debug_line_directories, reader->debug_line_files, &line, reader->obj);
                 break;
               case DW_AT_call_line:
                 line.line = (int)v.as.uint64;
@@ -1935,19 +1892,18 @@ debug_info_read(DebugInfoReader *reader, int num_traces, void **traces,
                 /* 1 or 3 */
                 break; /* goto skip_die; */
               case DW_AT_abstract_origin:
-                read_abstract_origin(reader, v.form, v.as.uint64, &line, errout);
+                read_abstract_origin(reader, v.form, v.as.uint64, &line);
                 break; /* goto skip_die; */
             }
         }
-        /* ranges_inspect(reader, &ranges, errout); */
-        /* kprintf("%d:%tx: %x ",__LINE__,diepos,die.tag); */
+        /* ranges_inspect(reader, &ranges); */
+        /* fprintf(stderr,"%d:%tx: %x ",__LINE__,diepos,die.tag); */
         for (int i=offset; i < num_traces; i++) {
             uintptr_t addr = (uintptr_t)traces[i];
             uintptr_t offset = addr - reader->obj->base_addr + reader->obj->vmaddr;
-            uintptr_t saddr = ranges_include(reader, &ranges, offset, &rnglists_header, errout);
-            if (saddr == UINTPTR_MAX) return false;
+            uintptr_t saddr = ranges_include(reader, &ranges, offset, &rnglists_header);
             if (saddr) {
-                /* kprintf("%d:%tx: %d %lx->%lx %x %s: %s/%s %d %s %s %s\n",__LINE__,die.pos, i,addr,offset, die.tag,line.sname,line.dirname,line.filename,line.line,reader->obj->path,line.sname,lines[i].sname); */
+                /* fprintf(stdout, "%d:%tx: %d %lx->%lx %x %s: %s/%s %d %s %s %s\n",__LINE__,die.pos, i,addr,offset, die.tag,line.sname,line.dirname,line.filename,line.line,reader->obj->path,line.sname,lines[i].sname); */
                 if (lines[i].sname) {
                     line_info_t *lp = malloc(sizeof(line_info_t));
                     memcpy(lp, &lines[i], sizeof(line_info_t));
@@ -1964,7 +1920,6 @@ debug_info_read(DebugInfoReader *reader, int num_traces, void **traces,
             }
         }
     }
-    return true;
 }
 
 // This function parses the following attributes of Line Number Program Header in DWARF 5:
@@ -1983,10 +1938,7 @@ debug_info_read(DebugInfoReader *reader, int num_traces, void **traces,
 //
 // It records DW_LNCT_path and DW_LNCT_directory_index at the index "idx".
 static const char *
-parse_ver5_debug_line_header(const char *p, int idx, uint8_t format,
-                             obj_info_t *obj, const char **out_path,
-                             uint64_t *out_directory_index, FILE *errout)
-{
+parse_ver5_debug_line_header(const char *p, int idx, uint8_t format, obj_info_t *obj, const char **out_path, uint64_t *out_directory_index) {
     int i, j;
     int entry_format_count = *(uint8_t *)p++;
     const char *entry_format = p;
@@ -1996,17 +1948,17 @@ parse_ver5_debug_line_header(const char *p, int idx, uint8_t format,
 
     int entry_count = (int)uleb128(&p);
 
-    DebugInfoReader reader = {0};
+    DebugInfoReader reader;
     debug_info_reader_init(&reader, obj);
     reader.format = format;
     reader.p = p;
     for (j = 0; j < entry_count; j++) {
         const char *format = entry_format;
         for (i = 0; i < entry_format_count; i++) {
-            DebugInfoValue v = {{0}};
+            DebugInfoValue v = {{}};
             unsigned long dw_lnct = uleb128(&format);
             unsigned long dw_form = uleb128(&format);
-            if (!debug_info_reader_read_value(&reader, dw_form, &v, errout)) return 0;
+            debug_info_reader_read_value(&reader, dw_form, &v);
             if (dw_lnct == 1 /* DW_LNCT_path */ && v.type == VAL_cstr && out_path)
                 *out_path = v.as.ptr + v.off;
             if (dw_lnct == 2 /* DW_LNCT_directory_index */ && v.type == VAL_uint && out_directory_index)
@@ -2051,7 +2003,7 @@ fail:
 /* read file and fill lines */
 static uintptr_t
 fill_lines(int num_traces, void **traces, int check_debuglink,
-	   obj_info_t **objp, line_info_t *lines, int offset, FILE *errout)
+	   obj_info_t **objp, line_info_t *lines, int offset)
 {
     int i, j;
     char *shstr;
@@ -2211,10 +2163,9 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
         debug_info_reader_init(&reader, obj);
         i = 0;
         while (reader.p < reader.pend) {
-            /* kprintf("%d:%tx: CU[%d]\n", __LINE__, reader.p - reader.obj->debug_info.ptr, i++); */
-            if (di_read_cu(&reader, errout)) goto use_symtab;
-            if (!debug_info_read(&reader, num_traces, traces, lines, offset, errout))
-                goto use_symtab;
+            /* fprintf(stderr, "%d:%tx: CU[%d]\n", __LINE__, reader.p - reader.obj->debug_info.ptr, i++); */
+            if (di_read_cu(&reader)) goto use_symtab;
+            debug_info_read(&reader, num_traces, traces, lines, offset);
         }
     }
     else {
@@ -2254,14 +2205,14 @@ use_symtab:
 	if (gnu_debuglink_shdr && check_debuglink) {
 	    follow_debuglink(file + gnu_debuglink_shdr->sh_offset,
 			     num_traces, traces,
-			     objp, lines, offset, errout);
+			     objp, lines, offset);
 	}
         if (note_gnu_build_id && check_debuglink) {
             ElfW(Nhdr) *nhdr = (ElfW(Nhdr)*) (file + note_gnu_build_id->sh_offset);
             const char *build_id = (char *)(nhdr + 1) + nhdr->n_namesz;
             follow_debuglink_build_id(build_id, nhdr->n_descsz,
 			       num_traces, traces,
-                               objp, lines, offset, errout);
+			       objp, lines, offset);
         }
 	goto finish;
     }
@@ -2269,7 +2220,7 @@ use_symtab:
     if (parse_debug_line(num_traces, traces,
             obj->debug_line.ptr,
             obj->debug_line.size,
-            obj, lines, offset, errout) == -1)
+            obj, lines, offset) == -1)
         goto fail;
 
 finish:
@@ -2281,7 +2232,7 @@ fail:
 /* read file and fill lines */
 static uintptr_t
 fill_lines(int num_traces, void **traces, int check_debuglink,
-        obj_info_t **objp, line_info_t *lines, int offset, FILE *errout)
+        obj_info_t **objp, line_info_t *lines, int offset)
 {
 # ifdef __LP64__
 #  define LP(x) x##_64
@@ -2360,13 +2311,13 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
         struct fat_header *fat = (struct fat_header *)file;
         char *q = file + sizeof(*fat);
         uint32_t nfat_arch = __builtin_bswap32(fat->nfat_arch);
-        /* kprintf("%d: fat:%s %d\n",__LINE__, binary_filename,nfat_arch); */
+        /* fprintf(stderr,"%d: fat:%s %d\n",__LINE__, binary_filename,nfat_arch); */
         for (uint32_t i = 0; i < nfat_arch; i++) {
             struct fat_arch *arch = (struct fat_arch *)q;
             cpu_type_t cputype = __builtin_bswap32(arch->cputype);
             cpu_subtype_t cpusubtype = __builtin_bswap32(arch->cpusubtype);
             uint32_t offset = __builtin_bswap32(arch->offset);
-            /* kprintf("%d: fat %d %x/%x %x/%x\n",__LINE__, i, mhp->cputype,mhp->cpusubtype, cputype,cpusubtype); */
+            /* fprintf(stderr,"%d: fat %d %x/%x %x/%x\n",__LINE__, i, mhp->cputype,mhp->cpusubtype, cputype,cpusubtype); */
             if (mhp->cputype == cputype &&
                     (cpu_subtype_t)(mhp->cpusubtype & ~CPU_SUBTYPE_MASK) == cpusubtype) {
                 p = file + offset;
@@ -2384,14 +2335,13 @@ fill_lines(int num_traces, void **traces, int check_debuglink,
         goto fail;
     }
     else {
+        kprintf("'%s' is not a "
 # ifdef __LP64__
-#   define bitsize "64"
+                "64"
 # else
-#   define bitsize "32"
+                "32"
 # endif
-        kprintf("'%s' is not a " bitsize
                 "-bit Mach-O file!\n",binary_filename);
-# undef bitsize
         close(fd);
         goto fail;
     }
@@ -2483,16 +2433,15 @@ found_mach_header:
         DebugInfoReader reader;
         debug_info_reader_init(&reader, obj);
         while (reader.p < reader.pend) {
-            if (di_read_cu(&reader, errout)) goto fail;
-            if (!debug_info_read(&reader, num_traces, traces, lines, offset, errout))
-                goto fail;
+            if (di_read_cu(&reader)) goto fail;
+            debug_info_read(&reader, num_traces, traces, lines, offset);
         }
     }
 
     if (parse_debug_line(num_traces, traces,
             obj->debug_line.ptr,
             obj->debug_line.size,
-            obj, lines, offset, errout) == -1)
+            obj, lines, offset) == -1)
         goto fail;
 
     return dladdr_fbase;
@@ -2505,7 +2454,7 @@ fail:
 #if defined(__FreeBSD__) || defined(__DragonFly__)
 # include <sys/sysctl.h>
 #endif
-/* ssize_t main_exe_path(FILE *errout)
+/* ssize_t main_exe_path(void)
  *
  * store the path of the main executable to `binary_filename`,
  * and returns strlen(binary_filename).
@@ -2513,7 +2462,7 @@ fail:
  */
 #if defined(__linux__) || defined(__NetBSD__)
 static ssize_t
-main_exe_path(FILE *errout)
+main_exe_path(void)
 {
 # if defined(__linux__)
 #  define PROC_SELF_EXE "/proc/self/exe"
@@ -2527,7 +2476,7 @@ main_exe_path(FILE *errout)
 }
 #elif defined(__FreeBSD__) || defined(__DragonFly__)
 static ssize_t
-main_exe_path(FILE *errout)
+main_exe_path(void)
 {
     int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
     size_t len = PATH_MAX;
@@ -2541,7 +2490,7 @@ main_exe_path(FILE *errout)
 }
 #elif defined(HAVE_LIBPROC_H)
 static ssize_t
-main_exe_path(FILE *errout)
+main_exe_path(void)
 {
     int len = proc_pidpath(getpid(), binary_filename, PATH_MAX);
     if (len == 0) return 0;
@@ -2553,7 +2502,7 @@ main_exe_path(FILE *errout)
 #endif
 
 static void
-print_line0(line_info_t *line, void *address, FILE *errout)
+print_line0(line_info_t *line, void *address)
 {
     uintptr_t addr = (uintptr_t)address;
     uintptr_t d = addr - line->saddr;
@@ -2594,16 +2543,16 @@ print_line0(line_info_t *line, void *address, FILE *errout)
 }
 
 static void
-print_line(line_info_t *line, void *address, FILE *errout)
+print_line(line_info_t *line, void *address)
 {
-    print_line0(line, address, errout);
+    print_line0(line, address);
     if (line->next) {
-        print_line(line->next, NULL, errout);
+        print_line(line->next, NULL);
     }
 }
 
 void
-rb_dump_backtrace_with_lines(int num_traces, void **traces, FILE *errout)
+rb_dump_backtrace_with_lines(int num_traces, void **traces)
 {
     int i;
     /* async-signal unsafe */
@@ -2615,14 +2564,14 @@ rb_dump_backtrace_with_lines(int num_traces, void **traces, FILE *errout)
 #ifdef HAVE_MAIN_EXE_PATH
     char *main_path = NULL; /* used on printing backtrace */
     ssize_t len;
-    if ((len = main_exe_path(errout)) > 0) {
+    if ((len = main_exe_path()) > 0) {
 	main_path = (char *)alloca(len + 1);
 	if (main_path) {
 	    uintptr_t addr;
 	    memcpy(main_path, binary_filename, len+1);
 	    append_obj(&obj);
 	    obj->path = main_path;
-	    addr = fill_lines(num_traces, traces, 1, &obj, lines, -1, errout);
+	    addr = fill_lines(num_traces, traces, 1, &obj, lines, -1);
 	    if (addr != (uintptr_t)-1) {
 		dladdr_fbases[0] = (void *)addr;
 	    }
@@ -2659,7 +2608,7 @@ rb_dump_backtrace_with_lines(int num_traces, void **traces, FILE *errout)
                 lines[i].saddr = (uintptr_t)info.dli_saddr;
             }
 	    strlcpy(binary_filename, path, PATH_MAX);
-	    if (fill_lines(num_traces, traces, 1, &obj, lines, i, errout) == (uintptr_t)-1)
+	    if (fill_lines(num_traces, traces, 1, &obj, lines, i) == (uintptr_t)-1)
 		break;
 	}
 next_line:
@@ -2668,7 +2617,7 @@ next_line:
 
     /* output */
     for (i = 0; i < num_traces; i++) {
-        print_line(&lines[i], traces[i], errout);
+        print_line(&lines[i], traces[i]);
 
 	/* FreeBSD's backtrace may show _start and so on */
 	if (lines[i].sname && strcmp("main", lines[i].sname) == 0)
@@ -2702,8 +2651,435 @@ next_line:
     free(dladdr_fbases);
 }
 
-#undef kprintf
+/* From FreeBSD's lib/libstand/printf.c */
+/*-
+ * Copyright (c) 1986, 1988, 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * (c) UNIX System Laboratories, Inc.
+ * All or some portions of this file are derived from material licensed
+ * to the University of California by American Telephone and Telegraph
+ * Co. or Unix System Laboratories, Inc. and are reproduced herein with
+ * the permission of UNIX System Laboratories, Inc.
+ *
+ * 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.
+ * 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.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)subr_prf.c	8.3 (Berkeley) 1/21/94
+ */
+
+#include <stdarg.h>
+#define MAXNBUF (sizeof(intmax_t) * CHAR_BIT + 1)
+static inline int toupper(int c) { return ('A' <= c && c <= 'Z') ? (c&0x5f) : c; }
+#define    hex2ascii(hex)  (hex2ascii_data[hex])
+static const char hex2ascii_data[] = "0123456789abcdefghijklmnopqrstuvwxyz";
+static inline int imax(int a, int b) { return (a > b ? a : b); }
+static int kvprintf(char const *fmt, void (*func)(int), void *arg, int radix, va_list ap);
+
+static void putce(int c)
+{
+    char s[1];
+    ssize_t ret;
+
+    s[0] = (char)c;
+    ret = write(2, s, 1);
+    (void)ret;
+}
+
+static int
+kprintf(const char *fmt, ...)
+{
+	va_list ap;
+	int retval;
 
+	va_start(ap, fmt);
+	retval = kvprintf(fmt, putce, NULL, 10, ap);
+	va_end(ap);
+	return retval;
+}
+
+/*
+ * Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse
+ * order; return an optional length and a pointer to the last character
+ * written in the buffer (i.e., the first character of the string).
+ * The buffer pointed to by `nbuf' must have length >= MAXNBUF.
+ */
+static char *
+ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper)
+{
+	char *p, c;
+
+	p = nbuf;
+	*p = '\0';
+	do {
+		c = hex2ascii(num % base);
+		*++p = upper ? toupper(c) : c;
+	} while (num /= base);
+	if (lenp)
+		*lenp = (int)(p - nbuf);
+	return (p);
+}
+
+/*
+ * Scaled down version of printf(3).
+ *
+ * Two additional formats:
+ *
+ * The format %b is supported to decode error registers.
+ * Its usage is:
+ *
+ *	printf("reg=%b\n", regval, "<base><arg>*");
+ *
+ * where <base> is the output base expressed as a control character, e.g.
+ * \10 gives octal; \20 gives hex.  Each arg is a sequence of characters,
+ * the first of which gives the bit number to be inspected (origin 1), and
+ * the next characters (up to a control character, i.e. a character <= 32),
+ * give the name of the register.  Thus:
+ *
+ *	kvprintf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n");
+ *
+ * would produce output:
+ *
+ *	reg=3<BITTWO,BITONE>
+ *
+ * XXX:  %D  -- Hexdump, takes pointer and separator string:
+ *		("%6D", ptr, ":")   -> XX:XX:XX:XX:XX:XX
+ *		("%*D", len, ptr, " " -> XX XX XX XX ...
+ */
+static int
+kvprintf(char const *fmt, void (*func)(int), void *arg, int radix, va_list ap)
+{
+#define PCHAR(c) {int cc=(c); if (func) (*func)(cc); else *d++ = cc; retval++; }
+	char nbuf[MAXNBUF];
+	char *d;
+	const char *p, *percent, *q;
+	unsigned char *up;
+	int ch, n;
+	uintmax_t num;
+	int base, lflag, qflag, tmp, width, ladjust, sharpflag, neg, sign, dot;
+	int cflag, hflag, jflag, tflag, zflag;
+	int dwidth, upper;
+	char padc;
+	int stop = 0, retval = 0;
+
+	num = 0;
+	if (!func)
+		d = (char *) arg;
+	else
+		d = NULL;
+
+	if (fmt == NULL)
+		fmt = "(fmt null)\n";
+
+	if (radix < 2 || radix > 36)
+		radix = 10;
+
+	for (;;) {
+		padc = ' ';
+		width = 0;
+		while ((ch = (unsigned char)*fmt++) != '%' || stop) {
+			if (ch == '\0')
+				return (retval);
+			PCHAR(ch);
+		}
+		percent = fmt - 1;
+		qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0;
+		sign = 0; dot = 0; dwidth = 0; upper = 0;
+		cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0;
+reswitch:	switch (ch = (unsigned char)*fmt++) {
+		case '.':
+			dot = 1;
+			goto reswitch;
+		case '#':
+			sharpflag = 1;
+			goto reswitch;
+		case '+':
+			sign = 1;
+			goto reswitch;
+		case '-':
+			ladjust = 1;
+			goto reswitch;
+		case '%':
+			PCHAR(ch);
+			break;
+		case '*':
+			if (!dot) {
+				width = va_arg(ap, int);
+				if (width < 0) {
+					ladjust = !ladjust;
+					width = -width;
+				}
+			} else {
+				dwidth = va_arg(ap, int);
+			}
+			goto reswitch;
+		case '0':
+			if (!dot) {
+				padc = '0';
+				goto reswitch;
+			}
+		case '1': case '2': case '3': case '4':
+		case '5': case '6': case '7': case '8': case '9':
+				for (n = 0;; ++fmt) {
+					n = n * 10 + ch - '0';
+					ch = *fmt;
+					if (ch < '0' || ch > '9')
+						break;
+				}
+			if (dot)
+				dwidth = n;
+			else
+				width = n;
+			goto reswitch;
+		case 'b':
+			num = (unsigned int)va_arg(ap, int);
+			p = va_arg(ap, char *);
+			for (q = ksprintn(nbuf, num, *p++, NULL, 0); *q;)
+				PCHAR(*q--);
+
+			if (num == 0)
+				break;
+
+			for (tmp = 0; *p;) {
+				n = *p++;
+				if (num & (1 << (n - 1))) {
+					PCHAR(tmp ? ',' : '<');
+					for (; (n = *p) > ' '; ++p)
+						PCHAR(n);
+					tmp = 1;
+				} else
+					for (; *p > ' '; ++p)
+						continue;
+			}
+			if (tmp)
+				PCHAR('>');
+			break;
+		case 'c':
+			PCHAR(va_arg(ap, int));
+			break;
+		case 'D':
+			up = va_arg(ap, unsigned char *);
+			p = va_arg(ap, char *);
+			if (!width)
+				width = 16;
+			while(width--) {
+				PCHAR(hex2ascii(*up >> 4));
+				PCHAR(hex2ascii(*up & 0x0f));
+				up++;
+				if (width)
+					for (q=p;*q;q++)
+						PCHAR(*q);
+			}
+			break;
+		case 'd':
+		case 'i':
+			base = 10;
+			sign = 1;
+			goto handle_sign;
+		case 'h':
+			if (hflag) {
+				hflag = 0;
+				cflag = 1;
+			} else
+				hflag = 1;
+			goto reswitch;
+		case 'j':
+			jflag = 1;
+			goto reswitch;
+		case 'l':
+			if (lflag) {
+				lflag = 0;
+				qflag = 1;
+			} else
+				lflag = 1;
+			goto reswitch;
+		case 'n':
+			if (jflag)
+				*(va_arg(ap, intmax_t *)) = retval;
+			else if (qflag)
+				*(va_arg(ap, int64_t *)) = retval;
+			else if (lflag)
+				*(va_arg(ap, long *)) = retval;
+			else if (zflag)
+				*(va_arg(ap, size_t *)) = retval;
+			else if (hflag)
+				*(va_arg(ap, short *)) = retval;
+			else if (cflag)
+				*(va_arg(ap, char *)) = retval;
+			else
+				*(va_arg(ap, int *)) = retval;
+			break;
+		case 'o':
+			base = 8;
+			goto handle_nosign;
+		case 'p':
+			base = 16;
+			sharpflag = (width == 0);
+			sign = 0;
+			num = (uintptr_t)va_arg(ap, void *);
+			goto number;
+		case 'q':
+			qflag = 1;
+			goto reswitch;
+		case 'r':
+			base = radix;
+			if (sign)
+				goto handle_sign;
+			goto handle_nosign;
+		case 's':
+			p = va_arg(ap, char *);
+			if (p == NULL)
+				p = "(null)";
+			if (!dot)
+				n = (int)strlen (p);
+			else
+				for (n = 0; n < dwidth && p[n]; n++)
+					continue;
+
+			width -= n;
+
+			if (!ladjust && width > 0)
+				while (width--)
+					PCHAR(padc);
+			while (n--)
+				PCHAR(*p++);
+			if (ladjust && width > 0)
+				while (width--)
+					PCHAR(padc);
+			break;
+		case 't':
+			tflag = 1;
+			goto reswitch;
+		case 'u':
+			base = 10;
+			goto handle_nosign;
+		case 'X':
+			upper = 1;
+		case 'x':
+			base = 16;
+			goto handle_nosign;
+		case 'y':
+			base = 16;
+			sign = 1;
+			goto handle_sign;
+		case 'z':
+			zflag = 1;
+			goto reswitch;
+handle_nosign:
+			sign = 0;
+			if (jflag)
+				num = va_arg(ap, uintmax_t);
+			else if (qflag)
+				num = va_arg(ap, uint64_t);
+			else if (tflag)
+				num = va_arg(ap, ptrdiff_t);
+			else if (lflag)
+				num = va_arg(ap, unsigned long);
+			else if (zflag)
+				num = va_arg(ap, size_t);
+			else if (hflag)
+				num = (unsigned short)va_arg(ap, int);
+			else if (cflag)
+				num = (unsigned char)va_arg(ap, int);
+			else
+				num = va_arg(ap, unsigned int);
+			goto number;
+handle_sign:
+			if (jflag)
+				num = va_arg(ap, intmax_t);
+			else if (qflag)
+				num = va_arg(ap, int64_t);
+			else if (tflag)
+				num = va_arg(ap, ptrdiff_t);
+			else if (lflag)
+				num = va_arg(ap, long);
+			else if (zflag)
+				num = va_arg(ap, ssize_t);
+			else if (hflag)
+				num = (short)va_arg(ap, int);
+			else if (cflag)
+				num = (char)va_arg(ap, int);
+			else
+				num = va_arg(ap, int);
+number:
+			if (sign && (intmax_t)num < 0) {
+				neg = 1;
+				num = -(intmax_t)num;
+			}
+			p = ksprintn(nbuf, num, base, &n, upper);
+			tmp = 0;
+			if (sharpflag && num != 0) {
+				if (base == 8)
+					tmp++;
+				else if (base == 16)
+					tmp += 2;
+			}
+			if (neg)
+				tmp++;
+
+			if (!ladjust && padc == '0')
+				dwidth = width - tmp;
+			width -= tmp + imax(dwidth, n);
+			dwidth -= n;
+			if (!ladjust)
+				while (width-- > 0)
+					PCHAR(' ');
+			if (neg)
+				PCHAR('-');
+			if (sharpflag && num != 0) {
+				if (base == 8) {
+					PCHAR('0');
+				} else if (base == 16) {
+					PCHAR('0');
+					PCHAR('x');
+				}
+			}
+			while (dwidth-- > 0)
+				PCHAR('0');
+
+			while (*p)
+				PCHAR(*p--);
+
+			if (ladjust)
+				while (width-- > 0)
+					PCHAR(' ');
+
+			break;
+		default:
+			while (percent < fmt)
+				PCHAR(*percent++);
+			/*
+			 * Since we ignore an formatting argument it is no
+			 * longer safe to obey the remaining formatting
+			 * arguments as the arguments will no longer match
+			 * the format specs.
+			 */
+			stop = 1;
+			break;
+		}
+	}
+#undef PCHAR
+}
 #else /* defined(USE_ELF) */
 #error not supported
 #endif
diff --git a/addr2line.h b/addr2line.h
index ff8e476b92..f09b665800 100644
--- a/addr2line.h
+++ b/addr2line.h
@@ -12,10 +12,8 @@
 
 #if (defined(USE_ELF) || defined(HAVE_MACH_O_LOADER_H))
 
-#include <stdio.h>
-
 void
-rb_dump_backtrace_with_lines(int num_traces, void **traces, FILE *errout);
+rb_dump_backtrace_with_lines(int num_traces, void **traces);
 
 #endif /* USE_ELF */
 
diff --git a/array.c b/array.c
author	Hiroshi SHIBATA <hsbt@ruby-lang.org>	2024-04-23 19:23:26 +0900
committer	Hiroshi SHIBATA <hsbt@ruby-lang.org>	2024-04-23 19:23:26 +0900
commit	724a0711752f35478dbccdafbb6718687d983d32 (patch)
tree	2ae09e69549a86b92cb8cee600fa5db6d329e82f /ext/-test-/num2int
parent	14510521720231dd9f07d949c86c9df9c52b205b (diff)