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-rw-r--r--man/ruby.123
1 files changed, 21 insertions, 2 deletions
diff --git a/man/ruby.1 b/man/ruby.1
index 28d7ddadfa..bc776b8946 100644
--- a/man/ruby.1
+++ b/man/ruby.1
@@ -1,6 +1,6 @@
.\"Ruby is copyrighted by Yukihiro Matsumoto <matz@netlab.jp>.
-.Dd April 14, 2018
-.Dt RUBY \&1 "Ruby Programmer's Reference Guide"
+.Dd March 27, 2026
+.Dt RUBY 1 "Ruby Programmer's Reference Guide"
.Os UNIX
.Sh NAME
.Nm ruby
@@ -287,6 +287,8 @@ to the standard output.
.It Fl -debug
Turns on debug mode.
.Li "$DEBUG"
+and
+.Li "$VERBOSE"
will be set to true.
.Pp
.It Fl e Ar command
@@ -521,6 +523,13 @@ variable is not defined, Ruby refers to
If set, Ruby tries to free all dynamically allocated memories.
Introduced in Ruby 3.3, default: unset.
.Pp
+.It Ev RUBY_BOX
+If set to
+.Li 1 ,
+Ruby Box is enabled and users will be able to execute
+.Li Ruby::Box.new .
+Ruby Box is an experimental feature introduced in Ruby 4.0.
+.Pp
.It Ev RUBY_IO_BUFFER_DEFAULT_SIZE
The custom default buffer size of
.Li IO::Buffer .
@@ -691,6 +700,16 @@ Frees stacks of pooled fibers, if set to 1.
Do not free the stacks if set to 0.
Introduced in Ruby 2.7, default: 1 (no growth)
.Pp
+.It Ev RUBY_SHARED_FIBER_POOL_MAXIMUM_COUNT
+If set to a non-negative integer, the shared fiber pool cannot allocate more
+than that many stacks; further fiber creation may fail with
+.Va FiberError .
+Unset or 0 means no explicit cap (subject to process limits).
+.Pp
+.It Ev RUBY_SHARED_FIBER_POOL_MINIMUM_COUNT
+Initial and minimum growth chunk size for the shared fiber pool (stacks).
+Unset uses the implementation default.
+.Pp
.El
.Sh STACK SIZE ENVIRONMENT
Stack size environment variables are implementation-dependent and