Activity
From 03/27/2026 to 04/02/2026
Today
-
01:22 PM Ruby Feature #21976: Add $SECONDS, $RANDOM, and other bashisms
- Sorry to be late: https://github.com/nobu/bashism
-
11:56 AM Ruby Bug #21933: Ruby::Box: named capture local variable can become nil after non-matching lines
- I opened a pull request with a fix and regression test for this issue:
https://github.com/ruby/ruby/pull/16644
-
-
- Applied in changeset commit:git|4009b713a64f469e593ffbc5bb4b37eff43f3be3.
----------
[Bug #21974] Fix RubyVM::AST inspection for ::Foo = 1 (#16642)
* Fix AST CDECL children for top-level constants
* Simplify cdecl AST regression test -
- I have created a fix for this https://github.com/ruby/ruby/pull/16642
-
- * Fix AST CDECL children for top-level constants
* Simplify cdecl AST regression test - 05:36 AM Ruby Revision 3319be01 (git): Bump taiki-e/install-action
- Bumps the github-actions group with 1 update in the / directory: [taiki-e/install-action](https://github.com/taiki-e/install-action).
Updates `taiki-e/install-action` from 2.70.4 to 2.71.1
- [Release notes](https://github.com/taiki-e/i... -
04:49 AM Ruby Revision b7eb96ec (git): Our test suite is broken with rb_sys-0.9.125 bacause we can't build json extension
-
- https://bugs.ruby-lang.org/issues/18254#note-14
I think `String#unpack`/`String#unpack1` should allow negative offset as well as the other methods, for example `String#slice` that is referred to in the description.
[ruby/ruby#16641]... -
- I wasn't aware that negative offset is not allowed.
Shouldn't `unpack`/`unpack1` also allow it as well as the other methods, `String#slice`, `String#[]` and so on? -
04:13 AM Ruby Bug #20948 (Closed): Constant references incorrectly cached in `module (expr)::Foo`
- Applied in changeset commit:git|91ae69860591f0dfc85571cfbd023dd199e17e73.
----------
Use compile-time flag to indicate dynamic CREFs
The inline constant cache previously used `RCLASS_SINGLETON_P` to detect
"unstable" CREFs that need ic... -
- The inline constant cache previously used `RCLASS_SINGLETON_P` to detect
"unstable" CREFs that need ic_cref stored and checked on every IC hit.
This caused the `class << self` pattern to create inline caches which
requires extra checks a... -
- `String#unpack` does not allow negative offset.
- 03:17 AM Ruby Revision 81df2bda (git): [ruby/rubygems] Bump the rb-sys group across 2 directories with 1 update
- Bumps the rb-sys group with 1 update in the /test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib directory: [rb-sys](https://github.com/oxidize-rb/rb-sys).
Bumps the rb-sys group with 1 update in the /test/rubygems/t... -
- When no gems have missing extensions (e.g. on JRuby where
missing_extensions? always returns false), display an informational
message instead of raising Gem::Exception.
https://github.com/ruby/rubygems/commit/738d2dbdf6
Co-Authored-By:... -
- JRuby does not require extension rebuilds when switching JRuby or Java
versions because Java extensions are shipped pre-compiled and JRuby does
not expose a version-specific C API. This means missing_extensions?
returning true on JRuby i... -
- Replace gzio.read with IO.copy_stream(gzio, IO::NULL) to avoid
allocating a potentially large string when discarding unconsumed
compressed data.
https://github.com/ruby/rubygems/commit/e4d0196887
Co-Authored-By: Claude Opus 4.6 (1M con... -
- When a GzipReader is closed before all compressed data is consumed,
zlib emits "attempt to close unfinished zstream; reset forced" warning.
This happens in open_tar_gz because the TarReader stops reading at the
end-of-archive marker, lea... -
- Xcode 26.5 beta ships a clang that promotes -Wincompatible-function-pointer-types to an error by default. The test's inline C extension defined `VALUE foo()` (taking no arguments) but passed it to `rb_define_global_function` which expect...
-
- Applied in changeset commit:git|dd3542a0cd00b40d406763e85ac12a1086bab682.
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Fix class variable cache not invalidated by class_variable_set
The previous invalidation walked subclasses but missed cvars from
included modules, and... -
- The previous invalidation walked subclasses but missed cvars from
included modules, and skipped invalidation when creating a new cvar on
modules entirely. Always invalidate when a new class variable is
created, since this should be relat... -
12:18 AM Ruby Revision f0c73671 (git): Revert "ZJIT: Clean up branching in polymorphic opt_send_without_block HIR construction (#16634)"
- This reverts commit 77b803cfc833233a49b497a9342f16c9237833e6.
There is a new NULL dereference in tool/test/testunit/test_sorting.rb
that seem to have started with this commit.
04/01/2026
-
11:37 PM Ruby Misc #21975: Add "UTF-八" as an alias for UTF-8 encoding
- Dan0042 (Daniel DeLorme) wrote in #note-3:
> Indeed, but I believe "ＵＴＦ－八" would be a better alias here
Fully agree. I was just too lazy to go figure out the full-width hyphen, sorry.
-
02:09 PM Ruby Misc #21975: Add "UTF-八" as an alias for UTF-8 encoding
- duerst (Martin Dürst) wrote in #note-2:
> I think it's a good idea to allow "UTF-八" (and probably also full-width "ＵＴＦ-八") as an alternative to "UTF-8" for internal Ruby use.
Indeed, but I believe "ＵＴＦ－八" would be a better alias here... -
- Thanks to @ko1 for this timely news. It looks like the current Japanese government is recently taking some steps that in some ways have felt long overdue. On December 22, 2025, they changed the Romanization used by the Government from 'K...
-
01:50 AM Ruby Misc #21975: Add "UTF-八" as an alias for UTF-8 encoding
- ko1 (Koichi Sasada) wrote:
> In Japan, legal texts must write all characters - including digits - using full-width or kanji forms. As a result, the encoding name "UTF-8"
> ...
Should "UTF-" also be full-width ("ＵＴＦ−")? -
11:29 PM Ruby Revision 25ca647d (git): ZJIT: Hook into GC W^X callbacks for compaction (#16635)
-
11:28 PM Ruby Revision c3413996 (git): Fix memory leak in pm_parse_process
- pm_parse_process initializes the index_lookup_table but nothing seems to
use it after it has been allocated. However, pm_compile_scope_node will
overwrite the index_lookup_table and cause it to leak memory. This can
be seen during bootup... - 08:56 PM Ruby Revision 77b803cf (git): ZJIT: Clean up branching in polymorphic opt_send_without_block HIR construction (#16634)
- We have global regalloc now and don't need this manual threading.
-
07:10 PM Ruby Bug #21971 (Closed): Backport commit 5de4cc560864 / PR #15848
- Forgot to close
-
```ruby
module M; @@x = 1; end
class A; end
class B < A
include M
def self.x; @@x; end
end
B.x # warm cache
A.class_variable_set(:@@x, 2)
B.x
```
The last call to `B.x` should fail with `Should raise: class variable ...-
05:47 PM Ruby Revision 1bb1f6c4 (git): [ruby/prism] Emit `on_kw` for ripper
- `yard` uses it
Start checking against the ordering of the events and also their location.
I didn't fix any of the preexisting failures and just ignored them. Some are easy to fix, others look like particularities of ripper
that I don't... - 05:08 PM Ruby Revision 6e18d5f5 (git): ZJIT: Remove old unused graphviz code (#16630)
- We use iongraph now.
-
- T_DATA, T_MODULE, and T_CLASS objects can share the exact same shape.
The shape on these objects give an index off of the fields array to
get at the ivar. When two objects share the same shape, but differ
in the T_* builtin type, however... -
02:03 PM Ruby Revision 8824fd3b (git): [ruby/prism] Generate templated sources under main/java-templates
- This path avoids the sources getting wiped out during `mvn clean`,
since they are not generated during the maven build.
This patch also moves the generated WASM build under src/main/wasm
since it is really a source file and not a test f... -
- - Avoid unnecessarily binding sender sockets, as ephemeral ports can
very occasionally conflict on Linux. This investigation is assisted
by Claude Code.
- Compare timestamps using a range instead of relying on `inspect`.
- Use the `... -
- I've been seeing this for a while now:
```
../../../../ext/prism/../../src/memchr.c: In function ‘pm_memchr’:
../../../../ext/prism/../../src/memchr.c:35:16: warning: return discards ‘const’ qualifier from pointer target type [-Wdiscarde... -
- Applied in changeset commit:git|9a2ffd8e5448e0c2ac4ae58d0ef02afc195f2cb8.
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Fix sending backtraces across ractors
[Bug #21818]
Currently exceptions can be sent across ractors,
but because of a limitation in the TypedData API,... -
- [Bug #21818]
Currently exceptions can be sent across ractors,
but because of a limitation in the TypedData API,
the exception backtrace is duped as an empty backtrace.
The problem is that backtraces are embedded objects,
hence the clas... -
09:46 AM Ruby Bug #21977 (Assigned): Ruby::Box crash with `RUBY_BOX=1` via `Binding` refinement, `UnboundMethod#bind_call`, and `Symbol#to_proc`
-
09:44 AM Ruby Bug #21977 (Assigned): Ruby::Box crash with `RUBY_BOX=1` via `Binding` refinement, `UnboundMethod#bind_call`, and `Symbol#to_proc`
- ## Summary
I found a reproducible interpreter crash when Ruby is run with `RUBY_BOX=1`.
A refinement on `Binding`, combined with `UnboundMethod#bind_call` and `Symbol#to_proc`, causes Ruby to abort with:
```text
[BUG] BUG: Loca... -
- Hardcoding sigstore-cli:0.2.2 meant rubygems would need a new release
whenever sigstore-cli ships a new version. Using --conservative lets
gem exec prefer an already-installed version and falls back to the
latest when sigstore-cli is not... -
- The method compared against a hardcoded string, so a trailing slash
(e.g. "https://rubygems.org/") would cause auto-attestation to be
silently skipped. Now we chomp the trailing slash and compare against
Gem::DEFAULT_HOST to be consisten... -
- When auto-attestation fails, the warning previously included
e.full_message with a full backtrace that could be noisy and expose
local paths. Now only e.message is shown by default, and the full
backtrace is included only when Gem.config... -
- The send_push_request method previously skipped all attestation handling
on JRuby, non-rubygems.org hosts, or outside GitHub Actions. This meant
that even when a user explicitly passed --attestation with a local
sigstore bundle, the atte... -
- https://github.com/ruby/rubygems/commit/ea1f43c4ae
-
- https://github.com/ruby/rubygems/commit/543ac52412
- 07:26 AM Ruby Revision 6ef9fe59 (git): [ruby/rubygems] Use Tempfile for auto-attestation bundles and clean up after use
- https://github.com/ruby/rubygems/commit/498401c010
Co-authored-by: hsbt <12301+hsbt@users.noreply.github.com> - 07:26 AM Ruby Revision c4eeb675 (git): [ruby/rubygems] Remove raise from stub to rely on flag for test assertions
- https://github.com/ruby/rubygems/commit/7ebc1abafd
Co-authored-by: hsbt <12301+hsbt@users.noreply.github.com> -
- https://github.com/ruby/rubygems/commit/df2bdde8e5
- 07:26 AM Ruby Revision bf617311 (git): [ruby/rubygems] Add test coverage for skipping auto-attestation
- https://github.com/ruby/rubygems/commit/6cd04a57da
Co-authored-by: hsbt <12301+hsbt@users.noreply.github.com> -
- https://github.com/ruby/rubygems/commit/74924da660
-
- https://github.com/ruby/rubygems/commit/64f085f5ee
-
- Applied in changeset commit:git|53099633e208b43e26a8ee3c6fdd936e2943b0d5.
----------
Make `ruby_xfree_sized` and `ruby_xrealloc_sized` public
[Feature #21861] -
- [Feature #21861]
-
- duerst (Martin Dürst) wrote in #note-6:
> Here is another proposal: Why not count using administrative/fiscal years? The administrative/fiscal year (年度 ('nendo') in Japanese, as opposed to simply 年 for (calendar) year) starts on April 1... -
- Here is another proposal: Why not count using administrative/fiscal years? The administrative/fiscal year (年度 ('nendo') in Japanese, as opposed to simply 年 for (calendar) year) starts on April 1st.
As an example, 1993-02-24 to 1993-3-... -
02:26 AM Ruby Feature #21972: Add Date.birthday and Date.age to track Ruby's milestones
- jinroq (Jinroq SAITOH) wrote in #note-4:
> > Under current Japanese law, a person's age increases at midnight on the day before their birthday. However, it might be better to use the traditional 'Kazeidoshi' (East Asian age reckoning) ... -
- shugo (Shugo Maeda) wrote in #note-2:
> Under current Japanese law, a person's age increases at midnight on the day before their birthday. However, it might be better to use the traditional 'Kazeidoshi' (East Asian age reckoning) syste... -
- ufuk (Ufuk Kayserilioglu) wrote in #note-1:
> I think these methods should live on the new `Ruby` module as `Ruby.birthday` and `Ruby.age` instead:
> ...
That's a great insight! Moving these to a Ruby module makes the intent much clear... -
-
- This function prevents other users from opening this device for
writing so not to be sent messages using commands such as `talk` or
`wall`. - 02:32 AM Ruby Revision 05086ee8 (git): Bump taiki-e/install-action
- Bumps the github-actions group with 1 update in the / directory: [taiki-e/install-action](https://github.com/taiki-e/install-action).
Updates `taiki-e/install-action` from 2.70.3 to 2.70.4
- [Release notes](https://github.com/taiki-e/i... -
01:51 AM Ruby Feature #21976: Add $SECONDS, $RANDOM, and other bashisms
- Did you think you could fly under the radar with that semi-colon?
That's not acceptable corner to cut.
For proper POSIX shell compatibility, it's imperative that the Ruby grammar be extended to accept `:` as a bare keyword, equivalent ... -
- Some time ago there was a lot of discussion around a script named [safe_sleep.sh](https://github.com/actions/runner/blob/af6c8e6eddef233fdef862c1287d9b013c8aabff/src/Misc/layoutroot/safe_sleep.sh) in the GitHub Actions runner. Like [many...
-
- The curl requests to stdgems.org occasionally fail with connection
errors, causing spurious CI failures. Add curl's built-in retry
flags to handle transient network issues with exponential backoff.
example:
https://github.com/ruby/ruby/... - 12:51 AM Ruby Revision 60de70c5 (git): [ruby/rubygems] Improve error message when current platform is not in lockfile
- Fixes https://github.com/ruby/rubygems/pull/9413
https://github.com/ruby/rubygems/commit/02d2179047 -
- When the caller passes a block to a method that either rejects blocks
(`&nil` parameter, `accepts_no_block`) or doesn't use them (`use_block`
is false), ZJIT now falls back to the interpreter instead of compiling
a direct send. This ensu... -
- "Sync git.ruby-lang.org" and "Push PR notes to GitHub" steps can
fail due to transient issues, which blocks execution of all
subsequent steps. Use continue-on-error so the rest of the workflow
still runs, and add a "Check for failures" s... -
- Initialize `end_cursor` to 0. It is guarded by `end_found` but the
compiler cannot prove `end_found` is always true when `end_cursor` is
read. -
- Initialize `c` and `encidx` to 0. They are assigned inside
`if (n >= 0)` and the following `if (n <= 0)` calls rb_raise, but the
compiler cannot see through the noreturn guarantee. -
- Initialize `entry` and `var` to NULL. They are assigned inside
RB_VM_LOCKING() but used after it, and the compiler cannot prove the
locked block always executes. -
- Outputs the number of GC cycles that are moving.
https://github.com/ruby/mmtk/commit/fef8f04186
03/31/2026
-
11:57 PM Ruby Misc #21975 (Open): Add "UTF-八" as an alias for UTF-8 encoding
- In Japan, legal texts must write all characters - including digits - using full-width or kanji forms. As a result, the encoding name "UTF-8"
appears as "UTF-八" (八 = eight in kanji) in official government notices.
Specifically, it a... - 11:32 PM Ruby Revision 78f11bde (git): ZJIT: Support VM_OPT_NEWARRAY_SEND_PACK (#16596)
-
11:30 PM Ruby Feature #21005: Update the source location method to include line start/stop and column start/stop details
- With this implemented and then removed after Ruby 4.0.0, Preview 2, is this still planned for completion? Would really like to have this but unclear on the current plan. I assume we will have to wait until Ruby 4.1.0 at best?
-
- Under current Japanese law, a person's age increases at midnight on the day before their birthday. However, it might be better to use the traditional 'Kazeidoshi' (East Asian age reckoning) system, as its logic is much simpler.
-
03:43 PM Ruby Feature #21972: Add Date.birthday and Date.age to track Ruby's milestones
- I think these methods should live on the new `Ruby` module as `Ruby.birthday` and `Ruby.age` instead:
```ruby
puts "Today: #{Date.today}" # => Today: 2026-04-01
# Check the "age" of Ruby
puts "Age: #{Ruby.age}" # =>... -
- Since its inception in 1993, Ruby has grown beyond a mere programming language to become a rich culture beloved by developers worldwide. However, the standard `date` library surprisingly lacks a formal interface to commemorate Ruby's own...
-
- https://github.com/necojackarc/auto-request-review/pull/135 fixes
last_files_match_only. Let's use a fork to fix it until it gets merged. -
- by explicitly adding no-op entries, rather than leaving the line empty,
which may seem like lines that have been deleted. -
09:48 PM Ruby Revision c9ae44e1 (git): set: fix Set#to_set block behavior and add regression test
-
- This fixes a SIGABRT of Assertion Failed: RCLASS_ALLOCATOR:!RCLASS_SINGLETON_P(klass)
-
07:58 PM Ruby Bug #21974 (Closed): Cannot inspect RubyVM::AST for CDECL
- ```
./ruby -e 'pp RubyVM::AbstractSyntaxTree.parse("::Foo = 1")'
```
and
```
./ruby -e 'p RubyVM::AbstractSyntaxTree.parse("::Foo = 1").children[2].children'
```
both crash - 06:56 PM Ruby Revision 0364a612 (git): ZJIT: Clean up branching in HIR construction (#16616)
- We have the global register allocator now and don't need to thread everything through manually as block params. Simplify HIR construction.
-
06:48 PM Ruby Feature #21973: Smile argument
- My email client does not like this proposal:
<img style="width: 232px;" src="clipboard-202603312047-a8wkw.png"><br>
Maybe `:))` (even bigger smile) should be considered instead? -
- Implementation should be easy like that :)
```ruby
def q(a:, b:1)
p a:, b: #=> {a: 10, b: 20}
end
def smile_send mid, b, *params
h = {}
method(mid).parameters.each do |(type, key)|
case type
when :keyreq
... -
03:35 PM Ruby Feature #21973 (Open): Smile argument
- Ruby makes us smile. So I want Ruby to smile too, and that is why I would like to propose this feature.
The smile argument makes Ruby smile by allowing a method call to end its argument list with `:)`.
smile_method(arg, :)
This ... - 03:14 PM Ruby Revision 9c827a49 (git): [ruby/openssl] test_pkey_rsa.rb: Fix test_private_encoding_encrypted in OpenSSL 4.0 FIPS
- OpenSSL 4.0.0 added a check for Password-Based Key Derivation Function 2
(PBKDF2) to require the minimal password length 8 in FIPS by the following
commit.
https://github.com/openssl/openssl/commit/71ed0fc8b3cdb33cd06059416686f8972ede024... -
03:14 PM Ruby Revision 5973d619 (git): [ruby/openssl] ssl: fix test_tmp_dh and test_tmp_dh_callback with OpenSSL 4.0
- OpenSSL master added support for RFC 7919 groups in TLS 1.2. They are
preferred over SSLContext#tmp_dh= or #tmp_dh_callback= values if the
client advertises them in the supported_groups extension.
https://github.com/ruby/openssl/commit/... -
- ASN1_STRING has been made opaque in OpenSSL's master branch. Use the
new accessor functions instead of accessing fields directly.
Other uses of ASN1_STRING fields were already updated in
<https://github.com/ruby/openssl/pull/978>. This ... -
- ossl_ec_new() was removed in commit https://github.com/ruby/openssl/commit/94aeab2f265d (pkey: simplify
ossl_pkey_new(), 2017-03-16), but it forgot to remove the declaration
while doing so.
https://github.com/ruby/openssl/commit/faad7a0811 -
- OpenSSL's master branch is changing functions to return const pointers
where the returned objects are not meant to be modified by the caller.
Update ossl_*_new() to take const pointers accordingly. Unfortunately,
*_dup() in older versio... - 01:04 PM Ruby Revision 6afed23a (git): [ruby/rubygems] Prevent checksum for this test:
- - ### Problem
This test breaks whenever checksums are computed. It didn't break
before because the gemfile in this test doesn't include any gems
(only git gems) and therefore checksum is skipped.
### Context
This test was ad... - 01:04 PM Ruby Revision 1e91f566 (git): [ruby/rubygems] Fix test suite that will start to fail whenever we attempt a release:
- - ### Problem
Whenever we bump the bundler `VERSION` to a non development release,
like we recently did in [4.0.9](https://github.com/ruby/rubygems/pull/9426)
The test suite will behave differently and will break due to the
Bun... - 01:04 PM Ruby Revision b359ea34 (git): [ruby/rubygems] Skip checksum for the bundler gem if no `bundler.gem` exists on disk:
- - ### Problem
This change is purely to fix a problem when developing Bundler.
When we tried to release Bundler 4.0.9, we bumped the VERSION
from `4.1.0.dev` to `4.0.9`, this condition now evaluates to false
https://github.com/ru... -
- These test files, specs, and trace_point.rb contain intentionally
invalid syntax or special constructs that CodeQL's parser cannot
handle. They are not security-relevant and should be excluded from
analysis.
Co-Authored-By: Claude Opus ... -
-
- Keep test/ and spec/ in CodeQL analysis for better SAST coverage.
Only exclude directories containing intentionally unparseable files
such as UTF-16 encoded fixtures and bad syntax test fixtures.
Co-Authored-By: Claude Opus 4.6 (1M cont... -
- The github-script step calls the Actions API to list workflow runs
and download artifacts, which requires actions:read permission.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- These four workflows now have explicit top-level permissions set
to contents:read, so the excessive-permissions finding no longer
applies.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- Replace @master reference with the pinned commit SHA for v6.1,
and remove cygwin.yml from the zizmor unpinned-uses ignore list
since it is now properly pinned.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- The commit SHAs did not match their version comment tags, as
flagged by zizmor ref-version-mismatch. Update all three actions
to their latest releases with correct SHAs.
- actions/setup-python v5.0.0 -> v5.6.0
- actions/setup-java v4.0.... -
- CodeQL's Ruby extractor cannot parse UTF-16 encoded fixtures,
TRICK entries, and some edge-case syntax in test files, causing
84 parse error warnings. These directories (spec/, test/, sample/,
benchmark/) are not relevant for security sc... -
- All committers with write access to this repository are trusted,
and fork PRs cannot access secrets by default. There is no threat
model that environment-scoped secrets would mitigate here.
Co-Authored-By: Claude Opus 4.6 (1M context) <... -
- Restrict the default GITHUB_TOKEN permissions to contents:read
for workflows that had no top-level permissions block, as flagged
by Scorecard's TokenPermissionsID check.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> - 02:26 AM Ruby Revision 3b502e62 (git): Bump taiki-e/install-action
- Bumps the github-actions group with 1 update in the / directory: [taiki-e/install-action](https://github.com/taiki-e/install-action).
Updates `taiki-e/install-action` from 2.70.2 to 2.70.3
- [Release notes](https://github.com/taiki-e/i... -
-
- Singleton classes don't need to be iterated in the subclasses list, we
only need to know that a subclass exists so that we can use the "method
entry" path for invalidation. -
- (https://github.com/ruby/strscan/pull/201)
GC compaction was introduced in Ruby 2.7.
Embedded Structs was introduced in Ruby 3.3. When enabled, the `struct
strscanner` is stored directly inside the object slot, meaning reading
the stru... -
- This gets rid of the copying of the entire opt_table in
function_stub_hit() since it only reads one element. HIR builder
still does a copy and that's unchanged. It needs to read the whole
table. -
12:21 AM Ruby Bug #21971: Backport commit 5de4cc560864 / PR #15848
- More details by Chris in the pull request: https://github.com/ruby/ruby/pull/15848
-
- Follow-up to ticket: https://bugs.ruby-lang.org/issues/21824
There was a group of old commits merged before 4.0 which were meant to improve regexp performance in some cases. Unfortunately, they also greatly degraded regexp performance...
03/30/2026
-
- Colon should be outside of the code.
-
11:10 PM Ruby Revision 72f309fe (git): [DOC] Doc for Pathname class (#16352)
-
- Allow configuring the maximum number of compiled versions per ISEQ
via --zjit-max-versions=num (default: 2). Like YJIT's equivalent,
this option is hidden from --help output. -
- Same random SystemStackError as TestOpenURI and TestOpenURISSL.
- 07:28 PM Ruby Revision 89133221 (git): Run GC if fiber pool expansion fails. (#16535)
- [Bug #21964]
- 07:26 PM Ruby Revision 714b4b54 (git): ZJIT: Compile modified path in getblockparamproxy (#16573)
- ZJIT: Avoid side exits on modified getblockparamproxy
-
- https://github.com/ruby/debug/pull/1174
-
- They're development-only dependencies. We shouldn't need to pay the
maintenance cost for such frequent updates, especially when the
dependabot PRs have failed the CI two times in a row. -
-
- rand 0.10.0 moved `random_range` from the `Rng` trait to `RngExt`.
Update the import accordingly. - 04:55 PM Ruby Revision 7444cb9f (git): Bump the jit group across 1 directory with 2 updates
- Bumps the jit group with 2 updates in the /zjit directory: [insta](https://github.com/mitsuhiko/insta) and [rand](https://github.com/rust-random/rand).
Updates `insta` from 1.47.0 to 1.47.1
- [Release notes](https://github.com/mitsuhik... -
-
02:40 PM Ruby Revision f0f92435 (git): Use ubuntu-latest for macOS result jobs
- The result jobs in macOS workflows only check if other jobs failed
(just runs `exit 1`). They don't need macOS runners. Using
ubuntu-latest instead frees up macOS runner slots and starts faster
due to shorter queue times. -
- Move compilation steps from the heaviest jobs to the lightest to reduce
the critical path of the Compilations workflow.
Before: jobs ranged from 13-41 min (compile#12 had 4 steps, compile#3
had 10 clang versions).
After: jobs range fro... -
-
-
-
11:31 AM Ruby Revision 3fd1be95 (git): Introduce GC.stat_heap(:heap_allocatable_slots)
-
-
- Replace per-heap GC_HEAP_INIT_SLOTS with a single GC_HEAP_INIT_BYTES
target.
Instead of allocating a fixed 10k slot budget for each heap to grow
into. This PR gives each heap a fixed 2.5Mb heap growth allowance. This
keeps the overall h... -
- Of course:
```
(gdb) p *iobj
$1 = {link = {type = ISEQ_ELEMENT_INSN, next = 0xaaab00000848, prev = 0xaaab00000818}, insn_id = YARVINSN_putnil, operand_size = 0, sc_state = 0, operands = 0x0, insn_info = {
line_no = 220, node_i... -
- Is it possible to inspect the contents of `*iobj` and `*ciobj`?
-
- A rare crash I observed in production. I unfortunately don't have a reproduction, but perhaps this will ring a bell to someone.
```
#4 0x0000aaaac9afb1b8 [PAC] in sigsegv (sig=11, info=0xaaaaff573e30, ctx=0xaaaaff573eb0) at signal.c... -
-
-
- So for the record, I managed to remove our dependency on `nkf`, and the issue seem to have disappeared so far.
So this suggest `nkf` is indeed the root cause, but that is weird because I looked at the extension, and it's really not do... -
- This step was added in 1ba93c2c4d for uploading core dumps to AWS S3,
but the S3 upload was later removed while this step was left behind.
The `job_id` output is not referenced anywhere in the workflow. -
- #21790 also identifies `_os_log_preferences_refresh` in `libsystem_trace.dylib` as the crash site (see note #4). The NAT64 code path (`_gai_nat64_second_pass`) appears higher in the call stack, but the actual fault is the same stale shar...
-
05:26 AM Ruby Bug #21969 (Third Party's Issue): fork() + Socket.getaddrinfo() triggers SIGSEGV/SIGABRT via libsystem_trace.dylib on macOS 26 (darwin25) x86_64 and ARM64
- On macOS 26 (darwin25), forked child processes crash with SIGSEGV (x86_64) or SIGABRT (ARM64) when calling `Socket.getaddrinfo` after the parent process has established `libsystem_trace.dylib` os_log shared-memory state through prior DNS...
- 05:34 AM Ruby Revision 3379c7ef (git): [ruby/rubygems] Restore rb_sys dependency for Rust
- https://github.com/ruby/rubygems/commit/7cd3b9a08a
-
- https://github.com/ruby/ruby/pull/16456 fixed this and added my simple workflow for cross compile.
- 02:57 AM Ruby Revision 503cf433 (git): Bump the github-actions group across 1 directory with 5 updates
- Bumps the github-actions group with 5 updates in the / directory:
| Package | From | To |
| --- | --- | --- |
| [ruby/setup-ruby](https://github.com/ruby/setup-ruby) | `1.295.0` | `1.299.0` |
| [github/codeql-action](https://github.com/... -
- The default image (clang-20) is reused across multiple steps within
the same job. Only remove non-default images after use.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- Replace the docuum service container with a simple `docker rmi` step
after each compilation. This avoids pulling an external image from
DockerHub, which was causing rate limit issues.
Co-Authored-By: Claude Opus 4.6 (1M context) <norepl... -
- Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
-
- Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
-
03/29/2026
-
-
-
-
-
-
-
- Build and target executable suffixes are unrelated in
cross-compilation. -
-
- So it appears that when duplicating a class in another box, we copy the class variables table, but not its entries, causing both boxes to think they own that memory, resulting in a double free.
I have a fix for the specific reproducer... - 05:57 AM Ruby Revision f9175a9e (git): Ensure safe handling of `IO::Buffer#hexdump` width. (#16593)
-
-
- https://github.com/ruby/strscan/commit/1d85632f2a
03/28/2026
-
09:49 PM Ruby Revision cbcd7522 (git): [ruby/strscan] Implement StringScanner for TruffleRuby in pure Ruby
- (https://github.com/ruby/strscan/pull/195)
* Fixes https://github.com/ruby/strscan/issues/194.
* This is a fresh new implementation from scratch, contributed directly
to ruby/strscan, under BSD-2-Clause.
This was implemented using the s... -
- When a SendDirect lands in a callee that fails to compile, we need to
reconstruct the interpreter state at the entry point of the callee in
function_stub_hit().
SendDirect never leaves gaps in its args Vec, and consequently, it
contains... -
- RDoc now has a `--server` mode that starts a local HTTP server
with live reload. Add an `html-server` make target so developers
can preview Ruby documentation while editing source files.
Usage: `make html-server` from the build director... -
- Extract check_event_support helper to reduce duplication in vm_trace.c
Five rb_tracearg_* functions repeated the same event validation
pattern. Extract it into a check_event_support() helper. -
09:09 AM Ruby Bug #21952: Ruby::Box double free at process exit when `fiddle/import` is required in multiple boxes
- I managed to reduce this further.
This is reproducible with pure Ruby now, without `fiddle/import`. The current reduced reproducer is along these lines:
```ruby
Ruby::Box.root.eval(<<~RUBY)
module M
@@x = 0
...
03/27/2026
-
- Return the pointer directly instead of a bool, for consistency with
CFP_ISEQ and CFP_PC. The pointer is truthy in if conditions so all
callers work unchanged. -
- Rename for consistency with ISEQ_BODY naming convention. Remove the
separate rb_cfp_has_iseq/rb_cfp_has_pc wrappers — CFP_ISEQ and CFP_PC
return NULL for missing values, which works directly in if conditions. -
- The interpreter always has a valid _iseq field (it's written on exit
from JIT code), so GET_ISEQ() doesn't need to go through rb_cfp_iseq().
Code in vm_insnhelper.c that may be called as a ZJIT fallback should
use rb_cfp_iseq() instead. -
- Per tenderlove's review, every cfp->iseq read should go through an
accessor that accounts for JITFrame. Rename the field to _iseq so
direct access causes a compile error, and rename the accessors to
drop the zjit prefix (rb_cfp_iseq, rb_... -
- Expose rb_zjit_jit_frame_update_references so vm.c can call into Rust
to relocate the iseq pointer during GC compaction, instead of manually
manipulating JITFrame fields in C. This keeps JITFrame field access
consolidated in Rust. -
- Remove redundant rb_zjit_enabled_p checks from rb_zjit_cfp_pc and
rb_zjit_cfp_iseq since CFP_HAS_JIT_RETURN already checks it. Rewrite
rb_zjit_cfp_has_iseq and rb_zjit_cfp_has_pc as thin wrappers around
rb_zjit_cfp_iseq and rb_zjit_cfp_pc. -
- Make zjit.h the single source of truth for the JITFrame struct layout.
Remove the manual #[repr(C)] definition from jit_frame.rs and replace
it with a type alias to the bindgen-generated zjit_jit_frame. -
- The jit_return = 0 write in rb_set_cfp_pc was only needed by ZJIT.
Move it to the codegen call site next to where iseq is also set,
making the intent clearer. -
- Add rb_iseq_bare_opcode_at_pc which uses rb_vm_insn_addr2insn to
return the base instruction, stripping trace/zjit variants. Use it
in iseq_may_write_block_code to simplify the match arms. -
- Add mark() and update_references() methods to JITFrame so GC logic
is encapsulated. Store *mut JITFrame in ZJITState to avoid unsafe
const-to-mut casts in gc.rs. -
-
- Add documentation to JITFrame fields explaining their purpose and
nullability. Split JITFrame::new into new_iseq and new_cfunc
constructors to make the two distinct use cases explicit. -
-
- Co-authored-by: Alan Wu <alanwu@ruby-lang.org>
-
- When rb_bug() is called (e.g. from a ZJIT Rust panic), the crash report
file could be truncated and left nearly empty due to two issues:
1. The crash report file was opened with default (buffered) I/O. If
rb_vm_bugreport() triggered ... -
- SYMBOL_GC removed in https://github.com/ruby/ruby/commit/2bcb155b49bb421ee82c0d5980546a5071113407
THREAD_CACHE removed in https://github.com/ruby/ruby/commit/be1bbd5b7d40ad863ab35097765d3754726bbd54
BIGNUM_DEBUG removed in https://github... -
- Use IntAnd + GuardBitEquals to check (block_handler & 0x3) == 0x3,
matching VM_BH_IFUNC_P() in the interpreter. Add the IntAnd HIR
instruction (placed next to IntOr) for bitwise AND on raw C integers. -
- Test Enumerable#map on a class with a Ruby `each` that uses `yield`.
This exercises the IFUNC block handler path in invokeblock, where
Enumerable C code creates an IFUNC wrapping the user's block. -
- When profiling shows a monomorphic IFUNC block handler, emit
InvokeBlockIfunc which calls rb_vm_yield_with_cfunc directly
instead of falling back to rb_vm_invokeblock. This avoids the
interpreter dispatch overhead for the most common inv... -
- It appears in documentation on https://docs.ruby-lang.org/ under `Object::Ripper`
https://github.com/ruby/prism/commit/6c1000661c -
- Move the InvokeBlockNotSpecialized, SendForwardNotSpecialized, and
InvokeSuperForwardNotSpecialized reasons from type_specialize match
arms to HIR construction, since type_specialize doesn't attempt to
specialize these instructions anyway. -
- Add specific SendFallbackReason variants for InvokeBlock,
SendForward, and InvokeSuperForward instructions that previously
stayed as Uncategorized in type_specialize. Also add
SingleRactorModeRequired for paths in Send handling that fail... -
- When JIT-to-JIT calls hit a function stub for lazy compilation, check
if the native stack is nearly exhausted before proceeding. If so, bail
out to the interpreter instead of compiling and entering more JIT code.
This complements the ch... -
- I had a call with @byroot and I understand better the proposal now.
I think the proposal makes sense, but with the small tweaks proposed in https://bugs.ruby-lang.org/issues/21963#note-8 it would completely avoid allocated-but-uniniti... -
- I realized these `init` & `copy` C function hooks could actually be done partly with the proposal in #21852, cc @byroot.
(and that solves the issue about needing more space in RClass!)
Specifically, the `rb_copy_alloc_func_t` gets the or... -
-
- Extend convert_no_profile_sends to handle SendNoProfiles (sends with
literal blocks), not just SendWithoutBlockNoProfiles. The match guards
against BlockArg sends since &proc forwarding can't be exit-profiled. -
- Add a BlockArg variant to BlockHandler for sends that pass a block via
&proc (ARGS_BLOCKARG). Previously these were represented as
Some(BlockIseq(null)), requiring a normalization hack in
reduce_send_to_ccall. Now the three cases are exp... -
- Introduce a BlockHandler enum to represent how a block is passed to a
send-like instruction. For now it has only the BlockIseq(IseqPtr)
variant, making this a pure mechanical rename with no behavior change. -
- https://github.com/ruby/prism/commit/6069d67d22
-
- https://github.com/ruby/prism/commit/5bb64a246d
-
-
- This reverts commit edff523407ac54b09a95a946c927656262595178.
-
- This reverts commit 8f5e0d8ff82ff63d60da445826fa44be3d8d0820.
-
- This reverts commit 31c3bcb4818d9f62a6ad5c284f152abb40d552d0.
-
- This reverts commit 1d0cc4c5b376996f53ea74a8896ff10fae054252.
-
- This reverts commit c161328240cd18f6e77b29fae61048fd9b7c730d.
-
-
- When an ISEQ has already reached MAX_ISEQ_VERSIONS, converting
no-profile sends to SideExits is counterproductive: the exit fires
every time but can never trigger recompilation. Keep them as Send
fallbacks so the interpreter handles them... -
- Instead of storing is_final_version as a field on Function, compute
it dynamically in convert_no_profile_sends by checking the payload's
version count against MAX_ISEQ_VERSIONS. -
- Keep the original SideExit recompile test alongside the new
final-version test since they cover different behaviors. Remove the
intermediate HIR snapshot since hir_string() now sees the auto-compiled
version as final. -
- Revert PR: https://github.com/ruby/ruby/pull/16582
I'll mark this issue as rejected to reflect the revert. -
- https://github.com/ruby/irb/pull/1191
-
- * ZJIT: Check native stack before compiling ISEQ
When the native/machine stack is nearly exhausted, don't compile and
enter ZJIT code. JIT-compiled code uses more native stack per call
frame than the interpreter, so falling back to the ... -
- Applied in changeset commit:git|851b8f852313c361465cf760701e23db0ea4d474.
----------
Remove class alloc check
This checks that the value returned from the function registered with
rb_define_alloc_func is of the correct class. When this... -
- For sends with ARGS_BLOCKARG (e.g. `foo(&block)`), the block arg sits
on the stack above the receiver and regular arguments. The profiling
(both interpreter and exit profiling) only records types for the
receiver and regular args (argc +... -
- This checks that the value returned from the function registered with
rb_define_alloc_func is of the correct class. When this was first
introduced in 1fe40b7cc5 (by Matz on 2001-10-03), allocation was done
via user-defined Object#allocat... -
- The current pathname gem release (0.4.0) has several issues:
### Many warnings on Ruby 4.0
It emits many constant & method redefinition warnings.
This happens notably when an application has `pathname` as a dependency (direct or t... -
03:11 PM Ruby Feature #20448: Make coverage event hooking C API public
- Hi there, I finally got around to working on this idea: https://github.com/ruby/ruby/pull/16579
Let me know if there's any way I can aid in its review. -
- In `ripper`, both go through the same converion logic.
Needed for rspec, no other failures in their own tests
https://github.com/ruby/prism/commit/510258aa2b -
- `tstring_beg` in particular is needed by `yard`.
Before:
> 1980 examples, 606 failures, 15 pending
After:
> ...
Thought it would be more, but oh well. It needs `on_sp` which I guess is why there are not many new passes
https://github.... -
- I'm unfortunately unable to reproduce this consistently.
It does happen a few times a day on our production servers, and I have a few core dumps around for investigation if needed.
The crash is always while loading `nknf.so`.
I'... - 07:09 AM Ruby Revision 998e2f41 (git): [ruby/openssl] Fix potential UAF in ossl_crypto_fixed_length_secure_compare
- StringValue() can invoke an object's #to_str method, which may execute
arbitrary Ruby code. If #to_str mutates the other string argument during
comparison, its buffer may be reallocated, leaving a previously obtained
RSTRING_PTR pointing... - 06:45 AM Ruby Revision 8b966199 (git): [ruby/json] Fix json generation for symbols on TruffleRuby
- https://github.com/ruby/json/commit/0e99fcb581
-
- On Windows, when a test process is killed after a timeout, the OS may
not release file/directory handles immediately. The Dir.rmdir in the
diagnostic tree-walk raises Errno::EACCES, which was unhandled, causing
the entire cleanup to abor... -
- The previous `cargo update --manifest-path zjit/Cargo.toml` re-resolved
all dependencies, and Rust 1.84+'s MSRV-aware resolver downgraded cc
(1.2.18 -> 1.0.94) and libc (0.2.171 -> 0.2.163) to satisfy yjit's
rust-version = "1.58.0". This... -
- Use (void) instead of () for functions taking no parameters.
-
- Since https://github.com/ruby/ruby/pull/16574, just running zjit-test
causes diffs in Cargo.lock.
This PR gets rid of the diff caused by zjit-test. - 02:32 AM Ruby Revision d85c6409 (git): Fix performance of fiber pool stack tests. (#16570)
- 02:31 AM Ruby Revision 5ffecb8c (git): Bump insta in /zjit in the jit group across 1 directory
- Bumps the jit group with 1 update in the /zjit directory: [insta](https://github.com/mitsuhiko/insta).
Updates `insta` from 1.46.3 to 1.47.0
- [Release notes](https://github.com/mitsuhiko/insta/releases)
- [Changelog](https://github.co... -
- https://github.com/ruby/rubygems/commit/7bf9971ebb
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- https://github.com/ruby/rubygems/commit/982ad09264
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- Handle interpolated values, inline calls, and old-style forms that were
missed in previous commits.
https://github.com/ruby/rubygems/commit/d3405c7fe1
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- https://github.com/ruby/rubygems/commit/743e4bc9ed
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- https://github.com/ruby/rubygems/commit/1f97d646b4
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- https://github.com/ruby/rubygems/commit/f5539440d5
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- https://github.com/ruby/rubygems/commit/85260feefd
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> -
- https://github.com/ruby/rubygems/commit/bd78b90f64
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> - 12:34 AM Ruby Revision 92f15577 (git): ZJIT: Compile setblockparam (#16517)
- * ZJIT: Compile setblockparam
* ZJIT: Add IntOr HIR and remove MarkBlockParamModified
* ZJIT: Use assert_compiles in codegen tests and tighten IntOr validation
- Use assert_compiles for codegen tests, except for the case that intentio...