3.4.10-2

Ruby 3.4.10 portable binaries

Released by Ruby: 2026-06-30

---

What's Changed

• Bug #21992: Defining BasicObject#initialize causes segmentation fault - Ruby - Ruby Issue Tracking System
• Bug #22004: parse.y doesn't executes loop body with while true || true condition - Ruby - Ruby Issue Tracking System
• Bug #22018: ISeq created via RubyVM::InstructionSequence.compile don't support coverage - Ruby - Ruby Issue Tracking System
• Bug #21941: Local variable becomes nil when YJIT enabled mid-method with fork/signal/ensure - Ruby - Ruby Issue Tracking System
• Bug #21947: Timeout.timeout doesn't use Timeout::ExitException when Fiber scheduler is in use. - Ruby - Ruby Issue Tracking System
• Bug #21847: Backport syntax_suggest 2.0.3 to supported branches - Ruby - Ruby Issue Tracking System
• Bug #21880: The ultra_safe mode of pstore bundled with Ruby 4.0 is broken. - Ruby - Ruby Issue Tracking System
• Bug #22070: Thread.each_caller_location(1, 1) segfaults when called from a cfunc - Ruby - Ruby Issue Tracking System
• Bug #21955: Fiber#transfer: machine stack not released when fiber terminates, causing FiberError: can't set a guard page - Ruby - Ruby Issue Tracking System
• Bug #21961: Marshal.load freeze option fail to freeze linked strings - Ruby - Ruby Issue Tracking System
• Bug #21959: rb_internal_thread_event_hooks_rw_lock is not reinitialized after fork causing deadlocks - Ruby - Ruby Issue Tracking System
• Bug #21985: RubyVM::AST negative numbers do not include - in location - Ruby - Ruby Issue Tracking System
• Bug #22017: Backport win32-resolv - Ruby - Ruby Issue Tracking System
• Bug #21927: Prism: misleading error message for forwarding in lambda argument - Ruby - Ruby Issue Tracking System
• Bug #21925: Prism misparses standalone "in" pattern matching in "case/in" - Ruby - Ruby Issue Tracking System
• Bug #21831: Prism doesn't count underscores in the fraction part of rational float - Ruby - Ruby Issue Tracking System
• Bug #21986: RubyVM::AST incorrect location for literals followed by modifier if - Ruby - Ruby Issue Tracking System
• Bug #22003: .bundle extensions not built when doing out-of-source build - Ruby - Ruby Issue Tracking System
• Bug #22002: argument stack underflow (-1) - Ruby - Ruby Issue Tracking System
• Bug #22076: defined? returns nil for protected methods defined in a module even when callable - Ruby - Ruby Issue Tracking System
• Bug #22074: YJIT misaligns locals when there are > 256 local variables - Ruby - Ruby Issue Tracking System
• Bug #22079: Float#ceil gives incorrect result - Ruby - Ruby Issue Tracking System
• Bug #21882: IO::Buffer#locked leaves the buffer locked when the block raises - Ruby - Ruby Issue Tracking System
• Bug #22112: Backport for IO::Buffer USF issues - Ruby - Ruby Issue Tracking System
• Bug #22092: Array#sum takes slow path, does not perform compensated summation of Float elements when init argument is a Float - Ruby - Ruby Issue Tracking System
• Bug #22101: ASAN heap-use-after-free in rb_data_free after TypedData dfree frees dynamic rb_data_type_t - Ruby - Ruby Issue Tracking System
• Bug #22120: Segfault caused by ar_find_entry_hint() not checking for conversion to st_table - Ruby - Ruby Issue Tracking System

Note: This list is automatically generated by tool/gen-github-release.rb. Because of this, some commits may be missing.

Full Changelog

ruby/ruby@v3_4_9...v3_4_10

Build revision: 3.4.10-2