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k0kubun (Takashi Kokubun)

Issues

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Assigned issues 4 113 117
Reported issues 1 78 79

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Project Roles Registered on
Ruby Committer, Release Manager 05/15/2017

Activity

Today

01:10 AM Ruby Bug #22064: GC compaction breaks compare-by-identity sets
ruby_4_0 commit:1f3a2c5db2a45180980cdc6d2f283c077c8b3644. k0kubun (Takashi Kokubun)
01:10 AM Ruby Bug #22074: YJIT misaligns locals when there are > 256 local variables
ruby_4_0 commit:cc058251160135a76cfbec8bbd83ae114001228f. k0kubun (Takashi Kokubun)
01:09 AM Ruby Bug #22072: [BUG] should have cvar cache entry
ruby_4_0 commit:647575eac915a371c04ceedbbee9d3737f8ecf77. k0kubun (Takashi Kokubun)
01:02 AM Ruby Bug #22076: defined? returns nil for protected methods defined in a module even when callable
ruby_4_0 commit:c5c292762e0a06f96859738bbdd974cade9f2664. k0kubun (Takashi Kokubun)

05/21/2026

06:18 PM Ruby Bug #22075: heap-use-after-free in `rb_vm_ci_lookup` under parallel Ractors
ruby_4_0 commit:a08f356063abaa6c5defa1314c5c8bcd9cbb5c2b. k0kubun (Takashi Kokubun)

05/19/2026

11:23 PM Ruby Revision c7a7bc98 (git): Merge branch 'ruby_4_0' into v4.0.5
k0kubun (Takashi Kokubun)
11:22 PM Ruby Revision 64336ffd (git): v4.0.5
k0kubun (Takashi Kokubun)
11:21 PM Ruby Revision 6d7ed5b0 (git): Merge branch 'ruby_4_0' into v4.0.4
k0kubun (Takashi Kokubun)
11:20 PM Ruby Revision 57524af8 (git): Merge tag 'v4.0.4' into v4.0.3
k0kubun (Takashi Kokubun)

05/18/2026

03:57 PM Ruby Revision f57fadb5 (git): ZJIT: Split test_dont_inline_integer_xor_with_bignum_or_boolean (#16993)
When a single #[test] function holds multiple assert_snapshot! calls, only
the first one is updated per cargo-insta run, so updating all of them takes
multiple zjit-test -> zjit-test-update cycles. Splitting into one snapshot
per test le...
k0kubun (Takashi Kokubun)

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