Ruby Issue Tracking System

10/23/2026

12:45 AM Ruby Revision ae497d06 (git): Use gperf 3.1 to generate ANSI-C code

(cherry picked from commit 1213623e5c11d63793e6966752904cc265012b25) nobu (Nobuyoshi Nakada)

12:45 AM Ruby Revision 76927320 (git): [ruby/date] Use gperf 3.1 to generate ANSI-C code

https://github.com/ruby/date/commit/5d67437b1f
(cherry picked from commit 12e66f11e526ba89103ca0b10a80b9b61a16af3e) nobu (Nobuyoshi Nakada)

12:45 AM Ruby Revision 08d0d1d4 (git): [ruby/io-console] Use gperf 3.1 to generate ANSI-C code

https://github.com/ruby/io-console/commit/3798aae42d
(cherry picked from commit 25c2aa0a1c55b5a90e29fc9d4f64166ddb498f51) nobu (Nobuyoshi Nakada)

10/22/2026

05:15 AM Ruby Feature #22463: Improve String#index and line splitting performance on x64-mingw-ucrt

Why doesn't mingw provide such optimization? nobu (Nobuyoshi Nakada)

04:19 AM Ruby Feature #21539: Export symbols for external profiling of stripped shared Ruby builds

I think I could understand the necessity about the former 2 symbols, but not for `ruby_global_symbols`.
The profiler has to access it during the VM is locked?
The third patch, debug-aliases.patch looks fine, but it doesn't look nice ... nobu (Nobuyoshi Nakada)

03:11 AM Ruby Bug #22447: parse.y `-> do ... end` COND state

Thanks.
Could you apply the fix? nobu (Nobuyoshi Nakada)

02:57 AM Ruby Bug #22461 (Closed): Use-after-free in `String` formatting with wide character encodings

Applied in changeset commit:git|faefcb11050ea61ee011e3b73c929ff406d30b68.
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[Bug #22461] Fix dangling pointers after associating encoding
`rb_enc_associate` may re-allocate the string buffer because of the
terminator length ch... nobu (Nobuyoshi Nakada)

02:07 AM Ruby Bug #22461: Use-after-free in `String` formatting with wide character encodings

[GH-19472](https://github.com/ruby/ruby/pull/19472) nobu (Nobuyoshi Nakada)

01:44 AM Ruby Bug #22461 (Closed): Use-after-free in `String` formatting with wide character encodings

A heap use-after-free bug exists in Ruby's string formatting implementation (`String#%` and `Kernel#sprintf`) when processing wide character encoded strings.
nobu (Nobuyoshi Nakada)

01:46 AM Ruby Revision faefcb11 (git): [Bug #22461] Fix dangling pointers after associating encoding

`rb_enc_associate` may re-allocate the string buffer because of the
terminator length change. nobu (Nobuyoshi Nakada)