Ruby Issue Tracking System

09/21/2026

02:42 PM Ruby Revision 41e04ff5 (git): [ruby/prism] Stop marking PM_SOURCE_FILE_NODE as static

Ref: https://bugs.ruby-lang.org/issues/17593.
Because `__FILE__` is currently considered a static literal,
it's entirely evaluated during compilation.
The problem is that ISeqs can be serialized and reloaded later,
but since `__FILE__`... byroot (Jean Boussier)

09/18/2026

06:44 PM Ruby Feature #22297: Module#method_defined? should have an `include_private` argument

@matheusrich I considered a keyword argument, but went with positional for consistency.
This isn't yet in a released version, so feel free to come forward with a proposal to make these keyword arguments before the final 4.1 release.
... byroot (Jean Boussier)

03:33 PM Ruby Feature #22300: `Ractor.check_isolation`: report Ractor isolation violations as warnings instead of raising

I believe this would be a very valuable feature (we discussed that ~1 year ago), particularly for testing environments.
Right now testing that a given API is Ractor-compatible is very hard, an API like the one described would make it ... byroot (Jean Boussier)

08:02 AM Ruby Revision f626f552 (git): string.c: use a const for the loop bound

GCC was emitting a warning, because it couldn't understand that
`search->needles_count` was assumed not to be 0:
```
string.c:9673:36: warning: ‘matches’ may be used uninitialized [-Wmaybe-uninitialized]
9673 | const in... byroot (Jean Boussier)

08:02 AM Ruby Revision 7b2c30d6 (git): string.c: makes needles_count unsigned

Making `RBIMPL_ASSERT_OR_ASSUME(needles_count > 0);` redundant. byroot (Jean Boussier)

09/17/2026

05:33 PM Ruby Revision 3d70677f (git): string.c: fix off by one assertion

byroot (Jean Boussier)

09/16/2026

02:20 PM Ruby Revision 793888fe (git): [ruby/erb] Version 6.1.0

https://github.com/ruby/erb/commit/2e53562958 byroot (Jean Boussier)

09/14/2026

07:05 AM Ruby Revision 228f6139 (git): string.c: Further String#tr fixes and refactors

* `tr_trans_pair` is now responsible for consuming the matches,
akin to the ERB change in 4ca48a192c225b887ac2e5d6d30486bb6850887f.
This makes it impossible to shift by 64 or more, hence removes a
branch in `next_match`. Also ensure `s` ... byroot (Jean Boussier)

09/13/2026

08:52 PM Ruby Revision 7f12b704 (git): [ruby/erb] Revert NEON vtbl use

It's failing compilation on `rmv7a-linux-androideabi30-clang`:
```
escape.c:223:34: error: call to undeclared function 'vqtbl1q_u8'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
223... byroot (Jean Boussier)

08:27 AM Ruby Revision 4ca48a19 (git): [ruby/erb] escape.c: refactor `find_next_match_*` to not consume the match

Now the caller is responsible for consuming the match using `consume_match`,
which means the undefined behavior `matches_bitmap >>= 64` is no longer
a concern, eliminating a condition.
https://github.com/ruby/erb/commit/40a8edea18 byroot (Jean Boussier)