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From 08/15/2025 to 08/21/2025

08/21/2025

11:51 PM Feature #21550 (Closed): Ractor.shareable_proc/shareable_lambda to make sharable Proc object: Let's introduce a way to make a sharable Proc.
* `Ractor.shareable_proc(self: nil, &block)` makes proc.
* `Ractor... ko1 (Koichi Sasada)
10:52 PM Revision 6fbe2dd3 (git): [DOC] Tweaks for String#insert: burdettelamar (Burdette Lamar)
10:42 PM Revision 823d55a8 (git): Add lock-free fastpath to callable_method_entry...: jhawthorn (John Hawthorn)
10:41 PM Bug #21540: prism allows `foo && return bar` when parse.y doesn't: Indeed, you're right:
```
Thread 1 "ruby" hit Breakpoint 1, syntax_error_initialize (argc=0, argv=0x0, self=1407366... Eregon (Benoit Daloze)
10:45 AM Bug #21540: prism allows `foo && return bar` when parse.y doesn't: That's just how parse.y shows its syntax errors in general, you can check with any other syntax error. `-c` doesn't i... Earlopain (Earlopain _)
10:34 PM Revision 2c6363c9 (git): [DOC] Write up NEWS entries for JITs (#14301): k0kubun (Takashi Kokubun)
10:18 PM Feature #21039: Ractor.make_shareable breaks block semantics (seeing updated captured variables) of existing blocks: jhawthorn (John Hawthorn) wrote in #note-27:
> I really do not believe it is a departure from the existing semantics... Eregon (Benoit Daloze)
09:52 PM Feature #21039: Ractor.make_shareable breaks block semantics (seeing updated captured variables) of existing blocks: Log at https://github.com/ruby/dev-meeting-log/blob/master/2025/DevMeeting-2025-08-21.md
matz (Yukihiro Matsumoto) w... Eregon (Benoit Daloze)
07:48 AM Feature #21039 (Closed): Ractor.make_shareable breaks block semantics (seeing updated captured variables) of existing blocks: We discussed at the developers' meeting, and had the conclusion that the original issue cannot be addressed if we use... matz (Yukihiro Matsumoto)
03:05 AM Feature #21039: Ractor.make_shareable breaks block semantics (seeing updated captured variables) of existing blocks: Eregon (Benoit Daloze) wrote in #note-24:
> ```ruby
> counter = 0
> get "/" do # assume the proc gets copied here ... jhawthorn (John Hawthorn)
02:01 AM Feature #21039: Ractor.make_shareable breaks block semantics (seeing updated captured variables) of existing blocks: My summary:
* To prohibit local variable assignment, we need to change the logic around local variables.
* as jha... ko1 (Koichi Sasada)
09:30 PM Revision 2ee5a892 (git): Make `vm_search_method` return a cme instead of a cc (#14299): Make vm_search_method return a cme instead of a cc
Both of its callers ended up calling `vm_cc_cme` on the result an... Stan Lo
08:38 PM Revision 8ad290b4 (git): YJIT: Fix BSD make build. Remove ZJIT stuff: Thanks to nobu for pointing this out. This is a YJIT file so shouldn't
have ZJIT stuff in it. ZJIT doesn't support bu... alanwu (Alan Wu)
08:12 PM Feature #21545: #try_dig, a dig that returns early if it cannot dig deeper: I have never seen an API that can return either a string `"ok"` or a hash `{ code: 200 }`
Swallowing exceptions li... Dan0042 (Daniel DeLorme)
09:10 AM Feature #21545: #try_dig, a dig that returns early if it cannot dig deeper: How about adding keyword argument, e.g. `exception: true` to behave `try_dig`.
Matz.
matz (Yukihiro Matsumoto)
08:05 PM Revision 5076e88f (git): ZJIT: Fill nils before function_stub_hit exit (#14294): Co-authored-by: Alan Wu <alansi.xingwu@shopify.com>
Co-authored-by: Max Bernstein <ruby@bernsteinbear.com>
Co-authore... k0kubun (Takashi Kokubun)
07:54 PM Bug #21548: SEGV: gc/default/default.c with rbs tests: I was able to reproduce this issue using the rexml tests as well and I have a fix here: https://github.com/ruby/ruby/... peterzhu2118 (Peter Zhu)
02:28 AM Bug #21548 (Closed): SEGV: gc/default/default.c with rbs tests: The following segmentation fault are happened in recent days.
* https://github.com/ruby/ruby/actions/runs/17114960... hsbt (Hiroshi SHIBATA)
07:48 PM Feature #17316: On memoization: The single-character syntax itself isn't a problem if limited to instance variables. `foo ?=` is already valid and sh... Dan0042 (Daniel DeLorme)
01:46 PM Feature #17316: On memoization: Currently, `?=` means "a single character =". We don't want to break current available syntax, unless absolutely nece... matz (Yukihiro Matsumoto)
01:18 PM Feature #17316: On memoization: @matz I propose `?=` as the uninitialized assignment operator:
```rb
@foo ?= some_heavy_calculation(...)
``` matheusrich (Matheus Richard)
09:05 AM Feature #17316: On memoization: I understand the motivation, but the proposed "@||=" is unacceptable. Other suggestions were made, but I don't think ... matz (Yukihiro Matsumoto)
07:45 PM Bug #20346 (Closed): FiberScheduler.unblock not called by Thread#join when Thread body contains Ractor.take: This no longer deadlocks. Under the new Ractor API the `take` should be replaced with `value`.
``` ruby
require "... jhawthorn (John Hawthorn)
07:37 PM Bug #19407 (Closed): 2 threads taking from current ractor will hang forever: I believe the Ractor::Port interface doesn't suffer from this issue
```
ruby -e 'th = 2.times.map { |i| Thread.ne... jhawthorn (John Hawthorn)
07:26 PM Revision f2715af9 (git): ZJIT: Allocate register for VRegs that begin and end at the same index (#14270): If the LiveRange looks like (idx, idx), we will currently not allocate a
register. This change allocates a register a... tekknolagi (Maxwell Bernstein)
06:37 PM Bug #20146 (Closed): Code using Ractor with env `RUBY_MAX_CPU=1` ends with unreachable: Applied in changeset commit:git|7ac16eff311f9bc762586bda9540d82e8eb7f135.
----------
Adjust snt < max_cpu calculatio... jhawthorn (John Hawthorn)
06:37 PM Revision 7ac16eff (git): Adjust snt < max_cpu calculation: [Bug #20146]
Previously we dealt with the main Ractor not being enabled for M:N by
incrementing snt_cnt++. This work... jhawthorn (John Hawthorn)
06:33 PM Feature #21532 (Closed): Define most of Pathname in Ruby code: Thanks! Eregon (Benoit Daloze)
12:58 PM Feature #21532: Define most of Pathname in Ruby code: Ok. Merge it. akr (Akira Tanaka)
03:47 PM Bug #21402 (Closed): ruby2_keywords affects methods/procs with post arguments: Fixed by commit:acb29f7fa1497463ed3bdd65549ef20b61beda64 jeremyevans0 (Jeremy Evans)
03:46 PM Revision acb29f7f (git): Do not respect ruby2_keywords on method/proc with post arguments: Previously, ruby2_keywords could be used on a method or proc with
post arguments, but I don't think the behavior is d... jeremyevans (Jeremy Evans)
03:41 PM Revision b0c80c2b (git): Remove unused SPECIAL_CONST_SHAPE_ID: Its usage was removed in 306d50811dd060d876d1eb364a0d5e6106f5e4f1. etienne (Étienne Barrié)
03:27 PM Misc #21458: Test 'make install'?: naruse (Yui NARUSE) wrote in #note-8:
> Many years ago, test-all was run for install-ed Ruby, but these days it ru... MSP-Greg (Greg L)
09:35 AM Misc #21458: Test 'make install'?: FYI: We already tested `make install` HEAD version and all of stable versions at https://github.com/ruby/actions.
... hsbt (Hiroshi SHIBATA)
07:57 AM Misc #21458: Test 'make install'?: Testing `make install` sounds reasonable. But complex multiple testing for installed files seems too complex.
> Ma... naruse (Yui NARUSE)
02:45 PM Revision 18aa7306 (git): ZJIT: Refactor `gen_new_hash` (#14293): We can use the `gen_push_opnds` and `gen_pop_opnds` helpers added in #14200 to simplify the code. Stan Lo
01:54 PM Revision ad4b4f2b (git): Remove dead rb_obj_is_main_ractor: peterzhu2118 (Peter Zhu)
01:37 PM Revision 027f4aa4 (git): [DOC] Tweaks for String#hash (#14253): burdettelamar (Burdette Lamar)
01:30 PM Feature #21533: Introduce `Time#am?` and `Time#pm?`: > Formatting times should be done with an appropriately internationalized library.
This is not formatting. This is i... matheusrich (Matheus Richard)
01:18 PM Bug #21547: SEGV after 2083fa commit: Thanks. It works well! watson1978 (Shizuo Fujita)
12:43 PM Bug #21547: SEGV after 2083fa commit: Thanks as always. I can confirm that this fixes this issue. Earlopain (Earlopain _)
12:17 PM Bug #21547 (Closed): SEGV after 2083fa commit: Applied in changeset commit:git|b6bf44ae0f0196c58a07e13ac1bd7adafd13f8b2.
----------
variable.c: handle cleared fiel... byroot (Jean Boussier)
11:28 AM Bug #21547: SEGV after 2083fa commit: Thanks everyone, I have a fix for it: https://github.com/ruby/ruby/pull/14291 byroot (Jean Boussier)
10:52 AM Bug #21547: SEGV after 2083fa commit: I was able to reproduce with the `cool.io` test suite. byroot (Jean Boussier)
10:09 AM Bug #21547: SEGV after 2083fa commit: We are running tests using Ruby HEAD on Linux, macOS, and Windows platforms.
https://github.com/fluent/fluentd/actio... watson1978 (Shizuo Fujita)
10:02 AM Bug #21547: SEGV after 2083fa commit: Thanks. Perhaps it's a linux only issue, I'll try to investigate further. byroot (Jean Boussier)
09:59 AM Bug #21547: SEGV after 2083fa commit: I reproduces pretty much all the time for me (with a clean install). A good starting point seems to be the `cool.io` ... Earlopain (Earlopain _)
09:04 AM Bug #21547: SEGV after 2083fa commit: @watson1978 Unfortunately this doesn't seem to reproduce on my machine.
Does your crash report include the C level... byroot (Jean Boussier)
12:17 PM Revision b6bf44ae (git): variable.c: handle cleared fields_obj in genfields cache: [Bug #21547]
Followup: https://github.com/ruby/ruby/pull/14201
When adding an instance variable and the IMEMO/field... byroot (Jean Boussier)
11:32 AM Revision a837ec09 (git): Drop a workaround for CentOS 6: `RUBY_CXX_DEPRECATED` is overridden using `RBIMPL_ATTR_DEPRECATED` in
include/ruby/backward/2/attributes.h already. nobu (Nobuyoshi Nakada)
11:06 AM Feature #21527 (Closed): Proposal: Math.log1p and Math.expm1: Applied in changeset commit:git|f2b1017b3df5f93aaf1d4ccd758d341298aa8dcc.
----------
Add `Math.log1p` and `Math.expm... mame (Yusuke Endoh)
08:20 AM Feature #21527: Proposal: Math.log1p and Math.expm1: Accepted.
Matz.
matz (Yukihiro Matsumoto)
11:05 AM Revision d318dc69 (git): Add NEWS for Math.log1p and Math.expm1: mame (Yusuke Endoh)
11:05 AM Revision f2b1017b (git): Add `Math.log1p` and `Math.expm1`: This commit adds two new methods to the `Math` module:
* `Math.log1p(x)`: Computes `Math.log(x + 1)`
* `Math.expm1(x... mame (Yusuke Endoh)
10:30 AM Misc #21549 (Closed): DevMeeting-2025-09-11: # The next dev meeting
**Date: 2025/09/11 13:00-17:00** (JST)
Log: https://github.com/ruby/dev-meeting-log/blob/m... mame (Yusuke Endoh)
10:30 AM Misc #21508 (Closed): DevMeeting-2025-08-21: mame (Yusuke Endoh)
10:02 AM Bug #21529: Deprecate the /o modifier and warn against using it: TIPS: By adding `[DOC]` tag in the commit log, you can download and preview the generated HTML files from the "Misc" ... nobu (Nobuyoshi Nakada)
09:57 AM Bug #21529 (Feedback): Deprecate the /o modifier and warn against using it: nobu (Nobuyoshi Nakada)
09:57 AM Bug #21529: Deprecate the /o modifier and warn against using it: jpcamara (JP Camara) wrote in #note-3:
> Yea I hear ya. So should I just submit a PR with my suggestions for the doc... nobu (Nobuyoshi Nakada)
09:20 AM Bug #21529: Deprecate the /o modifier and warn against using it: Sorry, `/o` is a traditional option. Even though Perl is not popular anymore, we are **not** going to deprecate it. I... matz (Yukihiro Matsumoto)
08:06 AM Bug #21529: Deprecate the /o modifier and warn against using it: The `o` option for regexp is `once` option originally from Perl regexp.
https://perldoc.perl.org/perlop#Regexp-Quote... naruse (Yui NARUSE)
09:43 AM Bug #21503: \p{Word} does not match on \p{Join_Control} while docs say it does: @k0kubun `name2ctype.h` is generated by `tool/enc-unicode.rb`. You can run it on ruby_3_4. naruse (Yui NARUSE)
09:34 AM Feature #12282: Hash#dig! for repeated applications of Hash#fetch: `fetch_path` is much better than `dig!` since this bang method is against our naming convention (if we have x and x!,... matz (Yukihiro Matsumoto)
09:30 AM Feature #21520: Feature Proposal: Enumerator::Lazy#tee: matz (Yukihiro Matsumoto) wrote in #note-11:
> I don't think `lazy_each` is a good name. We just wanted to peek the ... nuzair46 (Nuzair Rasheed)
09:16 AM Feature #21520: Feature Proposal: Enumerator::Lazy#tee: I don't think `lazy_each` is a good name. We just wanted to peek the element in the stream, being lazy or not. In tha... matz (Yukihiro Matsumoto)
08:28 AM Feature #21520: Feature Proposal: Enumerator::Lazy#tee: nobu (Nobuyoshi Nakada) wrote in #note-9:
> A couple days ago, another name came to me: `tee`.
Thanks, `tee` is a... nuzair46 (Nuzair Rasheed)
08:15 AM Feature #21520: Feature Proposal: Enumerator::Lazy#tee: A couple days ago, another name came to me: `tee`. nobu (Nobuyoshi Nakada)
09:27 AM Feature #21518: Statistical helpers to `Enumerable`: I am positive about adding those methods, but I am no expert on Mathematics nor Statistics.
Matz.
matz (Yukihiro Matsumoto)
09:22 AM Misc #21385: Namespace: Suggesting a rename: I accept `Ruby::Box`. I saw the proposal for `Ruby::Context` but this namespace things are a bit different from the `... matz (Yukihiro Matsumoto)
07:17 AM Revision feb83316 (git): Atomic CC table set in cache_callable_method_entry: jhawthorn (John Hawthorn)
04:48 AM Feature #20925: Allow boolean operators at beginning of line to continue previous line: OK, now we have updates both for prism and parse.y. Go ahead.
Matz.
matz (Yukihiro Matsumoto)
01:55 AM Revision 60189671 (git): Bump github.com/microsoft/vcpkg: Bumps [github.com/microsoft/vcpkg](https://github.com/microsoft/vcpkg) from master to dd3097e305afa53f7b4312371f62058... dependabot[bot]

08/15/2025

10:02 PM Revision 11c8bad6 (git): CI: Also show errors in rust-warnings.yml [ci skip]: At under a minute, this check runs faster than a lot of the other CI
checks, so we might as well show errors from `ca... alanwu (Alan Wu)
08:57 PM Revision e4093711 (git): zjit_bisect.rb: Fix pipe deadlock; log when timed out [ci skip]: I spent a long time bisecting some largish program before realizing
that failure was in fact coming from the child ti... alanwu (Alan Wu)
08:23 PM Revision 49e4d21d (git): ZJIT: Share function stub code using a trampoline (#14225): k0kubun (Takashi Kokubun)
07:43 PM Revision 149add89 (git): Don't free Ractors in GC shutdown: rb_gc_shutdown_call_finalizer_p returns false for threads and fibers, so
it should probably do the same for all Racto... jhawthorn (John Hawthorn)
07:29 PM Revision 88906e13 (git): Skip an unstable Ractor test for windows (#14247): https://github.com/ruby/ruby/actions/runs/16995599804/job/48185434078?pr=14242 k0kubun (Takashi Kokubun)
06:31 PM Revision 2a1210f7 (git): ZJIT: Implement getspecial (#13642): ZJIT: Implement getspecial in ZJIT
Adds support for the getspecial instruction in zjit.
We split getspecial into tw... Eileen
06:26 PM Revision 1d7ed956 (git): ZJIT: Make --zjit-dump-hir work with HIR opt disabled (#14242): k0kubun (Takashi Kokubun)
06:14 PM Misc #21508: DevMeeting-2025-08-21: * [Feature #21533] Introduce `Time#am?` and `Time#pm?`
* Thoughts on the name and functionality?
* I think this... matheusrich (Matheus Richard)
06:13 PM Revision 2f2e2bd7 (git): Relax a delta for an unstable test (#14246): https://github.com/ruby/ruby/actions/runs/16995978143/job/48186652826?pr=14244 k0kubun (Takashi Kokubun)
05:59 PM Revision 97cffb95 (git): Skip an unstable test for macOS (#14245): k0kubun (Takashi Kokubun)
05:53 PM Revision 12ef01b5 (git): Skip an unstable test for macOS: https://github.com/ruby/ruby/actions/runs/16983250181/job/48147338735
https://github.com/ruby/ruby/actions/runs/16994... k0kubun (Takashi Kokubun)
05:53 PM Revision 9deaf68c (git): Increase timeout for a flaky test: https://github.com/ruby/ruby/actions/runs/16983250181/job/48147338699 k0kubun (Takashi Kokubun)
05:41 PM Revision 0d0c051b (git): Don't check for stack overflow when ec is NULL (#14236): Co-authored-by: Nobuyoshi Nakada <nobu.nakada@gmail.com> jhawthorn (John Hawthorn)
05:25 PM Revision 7c67060d (git): Fix enc_list across ractors: Calling rb_ary_replace(copy, orig) can modify orig, which is not safe
across ractors because orig is shared (it's the... Luke Gruber
04:35 PM Misc #20013 (Closed): Travis CI status: We are migrating the ppc64le/s390x CI from Travis CI to GitHub Actions.
And I deleted the `.travis.yml` on the follo... jaruga (Jun Aruga)
04:05 PM Revision 8f7e7bfc (git): ZJIT: Set PC before function_stub_hit_body (#14234): Takashi Kokubun
01:30 PM Revision 79f52020 (git): Don't change Encoding.default_internal in assert_raise_with_message: For most tests (except two), we don't need to change Encoding.default_internal
in assert_raise_with_message. We're tr... peterzhu2118 (Peter Zhu)
09:36 AM Feature #21545 (Open): #try_dig, a dig that returns early if it cannot dig deeper: Ruby offers `dig` for traversing nested hashes and arrays. It is strict and will raise if an intermediary object does... cb341 (Daniel Bengl)
07:49 AM Misc #21544 (Open): CI: Launchable: Early flake detection: I'm a software engineer at Launchable, and I'd like to propose the mechanism to detect potential flaky tests.
## B... ono-max (Naoto Ono)
04:54 AM Revision 42c08e45 (git): Fix RBS tests (#14220): * Use unreleased version of rbs
* Skip all failing tests on windows soutaro (Soutaro Matsumoto)
04:37 AM Revision efe6813b (git): Drop Travis CI.: Travis CI has not been running since 2 months ago.
https://app.travis-ci.com/github/ruby/ruby/builds
As we are migra... Jun Aruga
01:51 AM Revision d025bc23 (git): Remove duplicated line of code in thread_sync.c: peterzhu2118 (Peter Zhu)
01:51 AM Revision b0cd89a5 (git): [DOC] Tweaks for GC.stress and GC.stress=: burdettelamar (Burdette Lamar)
01:47 AM Revision 12e42f72 (git): [DOC] Tweaks for GC.stat: burdettelamar (Burdette Lamar)

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