Ruby: v4.0.0-preview2 Release

Note: The git tag v4_0_0_preview2 has been renamed to v4.0.0-preview2.

What's Changed

• Update usage of enum rb_io_mode. by ioquatix · Pull Request #13128
• Feature #21268: Implement a lock-free hash set for fstring table - Ruby - Ruby Issue Tracking System
• Feature #20724: Update to Unicode 16.0 - Ruby - Ruby Issue Tracking System
• Ensure struct rb_io is passed through to thread.c. by ioquatix · Pull Request #13134
• Tidy up rb_io_fptr_finalize. by ioquatix · Pull Request #13136
• ZJIT: Add option to dump LIR by tekknolagi · Pull Request #13139
• Increase fiber sleep test tolerance. by ioquatix · Pull Request #13152
• ZJIT: Fix README example command by aidenfoxivey · Pull Request #13163
• Fix memoization for the /(...){0}/ case by makenowjust · Pull Request #13169
• ZJIT: Fold Send into SendWithoutBlockDirect if we know the class statically by tekknolagi · Pull Request #13172
• ZJIT: Emit CCall if we know the type statically, not just from profiles by tekknolagi · Pull Request #13173
• ZJIT: Bail out of HIR translation if we can't handle a send flag by tekknolagi · Pull Request #13182
• Feature #21216: Implement Set as a core class - Ruby - Ruby Issue Tracking System
• Bug #21257: YJIT can generate infinite loop when OOM - Ruby - Ruby Issue Tracking System
• ZJIT: Drop trace_zjit_* instructions by k0kubun · Pull Request #13189
• ZJIT: Drop a duplicated call into optimize by k0kubun · Pull Request #13196
• ZJIT: Replace GetConstantPath with Const if the IC is not empty by tekknolagi · Pull Request #13183
• ZJIT: Handle ZJIT options properly by k0kubun · Pull Request #13197
• ZJIT: Disable ZJIT instructions when USE_ZJIT is 0 by k0kubun · Pull Request #13199
• Update auto_request_review config for YJIT/ZJIT by k0kubun · Pull Request #13209
• Bug #21286: Windows - MSYS2 just updated to GCC 15.1.0, builds failing - Ruby - Ruby Issue Tracking System
• ZJIT: Compile opt_new to slow-path SendWithoutBlock by tekknolagi · Pull Request #13216
• ZJIT: Use RefCell to allow path compression in union-find by tekknolagi · Pull Request #13218
• Bug #21298: ObjectSpace.allocation_class_path returns inconsistent results depending on TracePoint state - Ruby - Ruby Issue Tracking System
• Bug #21289: Fix C level backtraces for USE_ELF - Ruby - Ruby Issue Tracking System
• ZJIT: Parse opt_newarray_send into HIR by tekknolagi · Pull Request #13242
• Fix heap-use-after-free in free_fast_fallback_getaddrinfo_entry by shioimm · Pull Request #13231
• Bug #21303: heap-buffer-overflow of Array#difference via mutating hash method - Ruby - Ruby Issue Tracking System
• Bug #21305: heap-use-after-free of set#merge via mutating hash method - Ruby - Ruby Issue Tracking System
• Bug #21306: heap-use-after-free in set initialization via clearing the array while it’s being iterated - Ruby - Ruby Issue Tracking System
• Bug #21304: heap-use-after-free of Array#hash via mutating hash method - Ruby - Ruby Issue Tracking System
• YJIT: End the block after OPTIMIZE_METHOD_TYPE_CALL by k0kubun · Pull Request #13245
• Feature #15408: Deprecate ObjectSpace._id2ref - Ruby - Ruby Issue Tracking System
• Bug #18119: Ractor crashes when instantiating classes - Ruby - Ruby Issue Tracking System
• [DOC] Tweak for String#+@ by BurdetteLamar · Pull Request #13285
• ZJIT: Stop padding side exits by k0kubun · Pull Request #13295
• YJIT: Split the block on optimized getlocal/setlocal by k0kubun · Pull Request #13282
• Make waiting_fd behaviour per-IO. by ioquatix · Pull Request #13127
• Bug #19367: Issue with ractor local storage API - Ruby - Ruby Issue Tracking System
• Bug #21331: heap-use-after-free caused by rehash during transform_values! - Ruby - Ruby Issue Tracking System
• Bug #21332: heap-use-after-free caused by mutating the set - Ruby - Ruby Issue Tracking System
• Bump the required BASERUBY version to 3.1 by k0kubun · Pull Request #13321
• [DOC] Tweaks for String#[] by BurdetteLamar · Pull Request #13335
• [DOC] Tweaks for String#== by BurdetteLamar · Pull Request #13323
• [DOC] Tweaks for String#<< by BurdetteLamar · Pull Request #13306
• Bug #21333: heap-use-after-free caused by rehash during update - Ruby - Ruby Issue Tracking System
• Ensure that forked process do not see invalid blocking operations. by ioquatix · Pull Request #13343
• [DOC] Tweaks for String#=~ by BurdetteLamar · Pull Request #13325
• Prevent double free for too big repetition quantifiers by makenowjust · Pull Request #13332
• Don't enumerate io->blocking_operations if fork generation is different. by ioquatix · Pull Request #13359
• Bug #20009: Marshal.load raises exception when load dumped class include non-ASCII - Ruby - Ruby Issue Tracking System
• Bug #21313: it in rescue/ensure on prism - Ruby - Ruby Issue Tracking System
• ZJIT: Create more ergonomic type profiling API by tekknolagi · Pull Request #13339
• Bug #21352: Invalid read in shape lookup code - Ruby - Ruby Issue Tracking System
• ZJIT: Propagate disasm feature to ZJIT and YJIT by k0kubun · Pull Request #13372
• Feature #21287: Remove SortedSet autoload and set/sorted_set - Ruby - Ruby Issue Tracking System
• ZJIT: Allow DCE to remove some CCalls by tekknolagi · Pull Request #13363
• Bug #21354: Symbol#to_proc is not ractor safe - Ruby - Ruby Issue Tracking System
• Bug #21357: Crash in Hash#merge! with ruby-dev in rubocop-rspec test suite - Ruby - Ruby Issue Tracking System
• [DOC] Set canonical root for online docs by st0012 · Pull Request #13410
• ZJIT: Parse getinstancevariable, setinstancevariable into HIR by tekknolagi · Pull Request #13413
• Allow IO#close to interrupt IO operations on fibers using fiber_interrupt hook. by ioquatix · Pull Request #12839
• Bump fiber scheduler version and add missing documentation. by ioquatix · Pull Request #13424
• ZJIT: Parse splatarray, concattoarray, pushtoarray into HIR by tekknolagi · Pull Request #13429
• Feature #21353: Add shape_id to RBasic under 32 bit - Ruby - Ruby Issue Tracking System
• Bug #21255: Can't build Ruby with Windows SDK 10.0.26100 - Ruby - Ruby Issue Tracking System
• bundle rbs-3.9.4 to fix test failure by soutaro · Pull Request #13287
• ZJIT: Add --enable-zjit=dev_nodebug by k0kubun · Pull Request #13456
• Bug #21380: Use-After-Free in String#split with In-Block String Modification - Ruby - Ruby Issue Tracking System
• Bug #21383: Prism leaks memory with invalid yield - Ruby - Ruby Issue Tracking System
• Feature #21205: Make File::Stat#birthtime available on Linux - Ruby - Ruby Issue Tracking System
• ZJIT: Assert that we're compiling a specific YARV insn to HIR by tekknolagi · Pull Request #13471
• ZJIT: Fold more fixnum operations by tavianator · Pull Request #13465
• Bug #15784: RUBY_DEBUG=gc_stress dumps core - Ruby - Ruby Issue Tracking System
• Bump bundled bigdecimal to 3.2.1 by tompng · Pull Request #13482
• Fix compatibility with fiber schedulers that don't implement #fiber_interrupt. by ioquatix · Pull Request #13492
• Bug #21370: it can cause ISeq serialization failure - Ruby - Ruby Issue Tracking System
• Bug #21394: Memory leak in Prism's RubyVM::InstructionSequence.new - Ruby - Ruby Issue Tracking System
• Launchable: Set env variables to prevent CI slowdowns by ono-max · Pull Request #13513
• ZJIT: Implement side exits for entry frames by k0kubun · Pull Request #13469
• ZJIT: Add newrange support by st0012 · Pull Request #13505
• Bug #21381: Different error messages when mixing it and _1 in block for Prism and parse.y - Ruby - Ruby Issue Tracking System
• ZJIT: Pass self through basic block params by k0kubun · Pull Request #13529
• ZJIT: Panic unimplemented for OOB basic block args by havenwood · Pull Request #13533
• Bug #21400: rb_bug() hit when killing current root fiber on non-main thread - Ruby - Ruby Issue Tracking System
• Handle spurious wakeups in Thread#join. by samuel-williams-shopify · Pull Request #13532
• Bug #21388: make install and bundled gems - Ruby - Ruby Issue Tracking System
• Bug #21201: Performance regression when defining methods inside refine blocks - Ruby - Ruby Issue Tracking System
• Feature #21219: Object#inspect accept a list of instance variables to display - Ruby - Ruby Issue Tracking System
• Fix handling of cancelled blocking operations. by samuel-williams-shopify · Pull Request #13570
• Bug #21439: Crash with PM_SPLAT_NODE compiler error (Prism) - Ruby - Ruby Issue Tracking System
• Bug #21090: SEGV from require in Thread in Ractor - Ruby - Ruby Issue Tracking System
• ZJIT: Write a callee frame on JIT-to-JIT calls by k0kubun · Pull Request #13579
• Bug #21440: Cannot create instances of frozen Data subclasses - Ruby - Ruby Issue Tracking System
• ZJIT: Partially enable btest on CI by k0kubun · Pull Request #13613
• Feature #20782: Introduction of Happy Eyeballs Version 2 (RFC8305) in TCPSocket.new - Ruby - Ruby Issue Tracking System
• Fix blocking operation cancellation. by ioquatix · Pull Request #13614
• Bug #21438: use-after-free when resizing exivars - Ruby - Ruby Issue Tracking System
• Launchable: Terminate Launchable CLI process quickly by sending singa… by ono-max · Pull Request #13622
• ZJIT: Add support for putspecialobject by st0012 · Pull Request #13565
• Bug #20998: rb_str_locktmp() changes flags of frozen strings and string literals - Ruby - Ruby Issue Tracking System
• Bug #21441: SEGV during thread cleanup if profiler calls thread_profiles_frames at wrong time - Ruby - Ruby Issue Tracking System
• Bug #21312: ruby 3.5-dev installs a gemspec for rdoc that misses dependencies - Ruby - Ruby Issue Tracking System
• ZJIT: Support invokebuiltin opcodes by composerinteralia · Pull Request #13632
• ZJIT: Add pass to clean CFG by tekknolagi · Pull Request #13655
• Typofix by hsbt · Pull Request #13665
• ZJIT: Move ccall comments near ccall instructions by tekknolagi · Pull Request #13662
• Bug #21448: Random.urandom may fail to fall back to reading /dev/urandom on Linux < 3.17 - Ruby - Ruby Issue Tracking System
• Bug #21445: [BUG] push_mark_stack() called for broken object raised since cd9f447be247478d2eb3da985295735cce20cb23 - Ruby - Ruby Issue Tracking System
• Bug #21449: Set#divide is order dependent and not working correctly - Ruby - Ruby Issue Tracking System
• ZJIT: Optimize frozen array aref by tekknolagi · Pull Request #13666
• ZJIT: Parse putspecialobject(VMCore) into Const by tekknolagi · Pull Request #13683
• Allow wakeup mutex to be used in trap context. by ioquatix · Pull Request #13684
• Bug #17516: forking in a ractor causes Ruby to crash - Ruby - Ruby Issue Tracking System
• Feature #21389: Simplify Set#inspect output - Ruby - Ruby Issue Tracking System
• Bug #21377: core Set#inspect does not use inherited class name - Ruby - Ruby Issue Tracking System
• [DOC] Tweaks for String#byterindex by BurdetteLamar · Pull Request #13485
• Feature #21365: Add Namespace#eval - Ruby - Ruby Issue Tracking System
• ZJIT: Disable profiling instructions before asserting opcodes in tests by tekknolagi · Pull Request #13720
• ZJIT: Stop loading an extra parameter by k0kubun · Pull Request #13719
• Bug #21453: Missing rbs and rdbg binstubs - all OS's - Ruby - Ruby Issue Tracking System
• Fix race condition in signal handler query by sferik · Pull Request #13712
• ZJIT: setglobal should not return output by k0kubun · Pull Request #13744
• ZJIT: Add new ZJIT types for Set by st0012 · Pull Request #13743
• ZJIT: Enable a couple more btests by k0kubun · Pull Request #13748
• ZJIT: Don't compile functions with unhandled parameter types by tekknolagi · Pull Request #13749
• ZJIT: Mark GetLocal as having no effects by tekknolagi · Pull Request #13750
• ZJIT: Enable bootstraptest/test_block.rb by k0kubun · Pull Request #13751
• ZJIT: Stop tracking EP == BP assumption on JIT entry by k0kubun · Pull Request #13752
• ZJIT: Shorten Debug print for 64-bit VReg by k0kubun · Pull Request #13763
• Bug #21497: building issue when using gcc15, because C23 is default - Ruby - Ruby Issue Tracking System
• ZJIT: Support Regexp type by st0012 · Pull Request #13760
• Launchable: Temporarily remove Launchable integration from Compilatio… by ono-max · Pull Request #13759
• ZJIT: Support spilling basic block arguments by k0kubun · Pull Request #13761
• ZJIT: Avoid panicing with "Option::unwrap() on None" by k0kubun · Pull Request #13762
• ZJIT: Add reason for SideExit by tekknolagi · Pull Request #13768
• ZJIT: Reject ISEQs with too-large stack_max by k0kubun · Pull Request #13770
• ZJIT: Skip a hanging ractor test by k0kubun · Pull Request #13774
• ZJIT: Bail out on register spill by k0kubun · Pull Request #13773
• ZJIT: Enable one more btest by k0kubun · Pull Request #13781
• ZJIT: Panic on BOP redefinition only when needed by k0kubun · Pull Request #13782
• ZJIT: Add a simple HIR validator by Fidget-Spinner · Pull Request #13780
• ZJIT: Add opnds macro for Vec<InsnId> to Vec<Opnd> by composerinteralia · Pull Request #13805
• [DOC] Tweaks for String#casecmp? by BurdetteLamar · Pull Request #13810
• ZJIT: Fix Rust warnings by st0012 · Pull Request #13813
• ZJIT: Support guarding *Exact types by st0012 · Pull Request #13797
• ZJIT: Mark profiled objects when marking ISEQ by k0kubun · Pull Request #13784
• Bug #19417: Regexp \p{Word} and [[:word:]] do not match Unicode Other_Number character - Ruby - Ruby Issue Tracking System
• Bug #21506: Fix timeout in Addrinfo.getaddrinfo to actually take effect - Ruby - Ruby Issue Tracking System
• [DOC] Tweaks for String#concat by BurdetteLamar · Pull Request #13836
• ZJIT: Avoid optimizing locals on eval by k0kubun · Pull Request #13840
• ZJIT: Add def-use validator via dataflow analysis by Fidget-Spinner · Pull Request #13814
• ZJIT: Implement patch points on BOP redefinition by k0kubun · Pull Request #13850
• Bug #21505: [Ractor] calling exit from non-main ractor will hang if main ractor waits on it - Ruby - Ruby Issue Tracking System
• ZJIT: Print a message about ZJIT_RB_BUG when unused by k0kubun · Pull Request #13852
• Fix heap-use-after-free in rb_getaddrinfo by shioimm · Pull Request #13856
• Bug #21507: Regexp considers variable repetition quantifiers invalid in lookbehind - Ruby - Ruby Issue Tracking System
• ZJIT: Improve asm comments for side exits by k0kubun · Pull Request #13853
• ZJIT: Use Vec instead of HashMap for profiling by tekknolagi · Pull Request #13809
• ZJIT: Mark objects baked in JIT code by k0kubun · Pull Request #13862
• Bug #20686: URI::HTTPS can build URI with blank, invalid host - Ruby - Ruby Issue Tracking System
• Bug #21509: io/wait: IO#wait raises error when passed nil as timeout - Ruby - Ruby Issue Tracking System
• [DOC] Tweaks for String#delete_suffix! by BurdetteLamar · Pull Request #13872
• ZJIT: Restore SP register after JIT-to-JIT call by k0kubun · Pull Request #13882
• Feature #17473: Make Pathname to embedded class of Ruby - Ruby - Ruby Issue Tracking System
• Bug #21512: Socket.tcp_with_fast_fallback('example.com', 80, '127.0.0.1') fails with unknown socket domain: ipv4 (SocketError) - Ruby - Ruby Issue Tracking System
• ZJIT: Only specialize direct positional-positional calls by tekknolagi · Pull Request #13899
• ZJIT: Start testing against /test/ruby/ and update all ZJIT related testing targets/docs by st0012 · Pull Request #13791
• Bug #21029: Prism behavior for defined? (;x) differs - Ruby - Ruby Issue Tracking System
• ZJIT: Profile each instruction at most num_profiles times by k0kubun · Pull Request #13903
• ZJIT: Remove an extra slash from $(TESTS) by k0kubun · Pull Request #13911
• Bug #21345: crash on evaluating 'a=>a,*,' - Ruby - Ruby Issue Tracking System
• ZJIT: run zjit-test-all on CI with seed by st0012 · Pull Request #13912
• ZJIT: Remove dead have_two_fixnums function by tekknolagi · Pull Request #13913
• ZJIT: Split shift with immediate operand by tekknolagi · Pull Request #13914
• ZJIT: Eagerly infer types of rewritten Const instructions by tekknolagi · Pull Request #13917
• ZJIT: Check if BOP is redefined before rewriting by tekknolagi · Pull Request #13916
• YJIT: Side-exit on String#dup when it's not leaf by k0kubun · Pull Request #13921
• Feature #21347: Add open_timeout as an overall timeout option for Socket.tcp - Ruby - Ruby Issue Tracking System
• Update NEWS for open_timeout of TCPSocket.new by shioimm · Pull Request #13930
• Flag rsock_raise_user_specified_timeout() as NORETURN by osyoyu · Pull Request #13928
• ZJIT: Mark the code region executable on partial failures by k0kubun · Pull Request #13937
• Bug #21461: Heap-buffer-overflow in Prism when encoding magic comment is invalid and assignment is incomplete - Ruby - Ruby Issue Tracking System
• Make protected documentation more explicit about differences by vinistock · Pull Request #13849
• ZJIT: Give up JIT-to-JIT calls for 6+ args by k0kubun · Pull Request #13939
• Bug #21256: it value is wrapped in an array when that doesn't happen with numbered parameter - Ruby - Ruby Issue Tracking System
• ZJIT: Remove obsoleted exit_trampoline by k0kubun · Pull Request #13943
• Bug #21326: Instruction generation differences between parse.y and prism for def a(x, ...); b(...); end - Ruby - Ruby Issue Tracking System
• ZJIT: Create perf map files for profilers by tekknolagi · Pull Request #13941
• ZJIT: Fix fixnum folding for negative values by st0012 · Pull Request #13942
• ZJIT: Support invalidating on method redefinition by st0012 · Pull Request #13875
• Bug #21187: Strings concatenated with \ getting frozen with literal hashes (PRISM only) - Ruby - Ruby Issue Tracking System
• Launchable: Remove launchable subset command by ono-max · Pull Request #13969
• Fix bigand_int edgecase returning false by tompng · Pull Request #13987
• [DOC] Tweaks for String#each_grapheme_cluster by BurdetteLamar · Pull Request #13981
• Feature #21360: Inconsistent Support for Exception#cause in Fiber#raise and Thread#raise - Ruby - Ruby Issue Tracking System
• ZJIT: Inline guard type checks for some built-in types by st0012 · Pull Request #14017
• ZJIT: Support invalidating constant patch points by st0012 · Pull Request #13998
• YJIT: Call YJIT hooks before enabling YJIT by k0kubun · Pull Request #14032
• Bug #21513: Converting endless range to set hangs - Ruby - Ruby Issue Tracking System
• Improve performance of bignum[beg, len] by tompng · Pull Request #14007
• ZJIT: Add --zjit-stats by k0kubun · Pull Request #14034
• ZJIT: Create delta debugging script to narrow JIT failures by tekknolagi · Pull Request #14041
• ZJIT: Catch more failed recursive compilations by tekknolagi · Pull Request #14042
• Port Oniguruma patches to prevent integer overflow by makenowjust · Pull Request #14027
• YJIT: Remove a dead test for getinlinecaches by st0012 · Pull Request #14033
• ZJIT: Prepare for sharing JIT hooks with ZJIT by k0kubun · Pull Request #14044
• Fix indents in Onigmo files to use spaces instead of tabs by makenowjust · Pull Request #14047
• ZJIT: Stub JIT-to-JIT calls by k0kubun · Pull Request #14052
• ZJIT: Add the ISEQ name to Block asm comments by k0kubun · Pull Request #14070
• ZJIT: Enable IncrCounter for arm64 by k0kubun · Pull Request #14086
• Bug #21188: PRISM does not end reading from tty with ^D twice - Ruby - Ruby Issue Tracking System
• ZJIT: Add helpers to prepare for C calls by k0kubun · Pull Request #14100
• ZJIT: Remove passing tests from exclusions by st0012 · Pull Request #14097
• Bug #21139: Prism and parse.y parses it = it differently - Ruby - Ruby Issue Tracking System
• [DOC] Tweaks for GC.start by BurdetteLamar · Pull Request #14093
• ZJIT: Profile type+shape distributions by tekknolagi · Pull Request #13901
• ZJIT: Avoid matching built-in iseq's HIR line numbers in tests by st0012 · Pull Request #14124
• ZJIT: Fix Kernel#Float's annotation by st0012 · Pull Request #14123
• ZJIT: Fix "immediate value too large" on cmp for x86_64 by k0kubun · Pull Request #14125
• ZJIT: Implement SingleRactorMode invalidation by st0012 · Pull Request #14121
• ZJIT: Inline attr_reader/attr_accessor by tekknolagi · Pull Request #14126
• ZJIT: Set PC before StringCopy by tekknolagi · Pull Request #14141
• ZJIT: Create HeapObject Type by tekknolagi · Pull Request #14140
• ZJIT: Remove GC offsets overwritten by invalidation by k0kubun · Pull Request #14102
• ZJIT: Optimize class guards by directly reading klass field by st0012 · Pull Request #14136
• ZJIT: Implement defined? codegen for non-yield calls by st0012 · Pull Request #14101
• ZJIT: Remove the need for unwrap() on with_num_bits() by k0kubun · Pull Request #14144
• ZJIT: Add a graphviz dumper for HIR by tekknolagi · Pull Request #14117
• ZJIT: Fix "memory operand with non-register base" by k0kubun · Pull Request #14153
• Bug #21398: Ractor.select hangs when multiple threads submit heavy jobs concurrently - Ruby - Ruby Issue Tracking System
• ZJIT: Add RubyVM::ZJIT.enabled? by k0kubun · Pull Request #14159
• ZJIT: Add compile/profile/GC/invalidation time stats by k0kubun · Pull Request #14158
• YJIT, ZJIT: Fix JITs compiling prelude by k0kubun · Pull Request #14171
• ZJIT: Implement concatstrings insn by st0012 · Pull Request #14154
• ZJIT: Add --zjit-exec-mem-size by k0kubun · Pull Request #14175
• ZJIT: Avoid splitting add_into/sub_into for x86_64 by k0kubun · Pull Request #14177
• ZJIT: Add flag to disable the HIR optimizer by tekknolagi · Pull Request #14181
• ZJIT: Avoid compiling failed ISEQs repeatedly by k0kubun · Pull Request #14195
• ZJIT: Prepare non-leaf calls for SetGlobal by st0012 · Pull Request #14197
• ZJIT: Fix ObjToString rewrite by st0012 · Pull Request #14196
• ZJIT: Implement StringIntern codegen by st0012 · Pull Request #14207
• ZJIT: Enable or remove comments from YJIT by k0kubun · Pull Request #14214
• Ignore net-imap failures on Windows by k0kubun · Pull Request #14216
• ZJIT: Stop duplicating context-less side exits by k0kubun · Pull Request #14215
• Fix a static assertion incompatible with C++98 by k0kubun · Pull Request #14229
• Increase timeout for a flaky test by k0kubun · Pull Request #14228
• Skip an unstable Ractor test for macOS by k0kubun · Pull Request #14231
• Do not skip CI when it mentions "document" by k0kubun · Pull Request #14232
• Increase timeout for a flaky test by k0kubun · Pull Request #14233
• Fix RBS tests by soutaro · Pull Request #14220
• ZJIT: Set PC before function_stub_hit_body by k0kubun · Pull Request #14234
• Don't check for stack overflow when ec is NULL by jhawthorn · Pull Request #14236
• Skip an unstable test for macOS by k0kubun · Pull Request #14245
• Relax a delta for an unstable test by k0kubun · Pull Request #14246
• ZJIT: Make --zjit-dump-hir work with HIR opt disabled by k0kubun · Pull Request #14242
• ZJIT: Implement getspecial by eileencodes · Pull Request #13642
• Skip an unstable Ractor test for windows by k0kubun · Pull Request #14247
• ZJIT: Share function stub code using a trampoline by k0kubun · Pull Request #14225
• ZJIT: Remove unused HIR test code by tekknolagi · Pull Request #14248
• Bug #21546: prefix in ruby.pc is wrong when --enable-load-relative - Ruby - Ruby Issue Tracking System
• ZJIT: Codegen for NewHash by corona10 · Pull Request #14059
• ZJIT: Make sure output operands are not VRegs by tekknolagi · Pull Request #14188
• ZJIT: Handle ISEQ moves by k0kubun · Pull Request #14250
• Increase timeout on slow tests by tekknolagi · Pull Request #14264
• ZJIT: Fix BorrowError on --zjit-dump-disasm by k0kubun · Pull Request #14267
• Don't allow looking at the shape ID of immediates by tekknolagi · Pull Request #14266
• ZJIT: Compile toregexp by composerinteralia · Pull Request #14200
• ZJIT: Remove more Option from codegen by tekknolagi · Pull Request #14265
• ZJIT: Remove try_num_bits by k0kubun · Pull Request #14272
• Fix special consts unit tests for i686 by tekknolagi · Pull Request #14271
• YJIT: Improve locals names by st0012 · Pull Request #14285
• ZJIT: Remove unnecessary option return type on gen_branch_params by st0012 · Pull Request #14286
• Feature #21527: Proposal: Math.log1p and Math.expm1 - Ruby - Ruby Issue Tracking System
• Bug #21547: SEGV after 2083fa commit - Ruby - Ruby Issue Tracking System
• [DOC] Tweaks for String#hash by BurdetteLamar · Pull Request #14253
• ZJIT: Refactor gen_new_hash by st0012 · Pull Request #14293
• Bug #20146: Code using Ractor with env RUBY_MAX_CPU=1 ends with unreachable - Ruby - Ruby Issue Tracking System
• ZJIT: Allocate register for VRegs that begin and end at the same index by tekknolagi · Pull Request #14270
• ZJIT: Fill nils before function_stub_hit exit by k0kubun · Pull Request #14294
• Make vm_search_method return a cme instead of a cc by st0012 · Pull Request #14299
• [DOC] Write up NEWS entries for JITs by k0kubun · Pull Request #14301
• Bug #21548: SEGV: gc/default/default.c with rbs tests - Ruby - Ruby Issue Tracking System
• ZJIT: Allow querying a single ZJIT stat by k0kubun · Pull Request #14309
• ZJIT: Add compilation failure stats by k0kubun · Pull Request #14310
• ZJIT: Side-exit on unknown instructions by tekknolagi · Pull Request #14212
• Fix uninitialized next_shape_id by k0kubun · Pull Request #14348
• [DOC] Tweaks for String#intern by BurdetteLamar · Pull Request #14314
• Build ppc64le and s390x jobs in a separate workflow by k0kubun · Pull Request #14353
• Fix -Wcomment warnings from rbs by k0kubun · Pull Request #14349
• Feature #21553: Remove opt_aref_with and opt_aset_with instructions - Ruby - Ruby Issue Tracking System
• ZJIT: Canonicalize --zjit-log-compiled-iseqs filename by tekknolagi · Pull Request #14352
• ZJIT: Implement side exit stats by k0kubun · Pull Request #14357
• Bug #21535: NoMethodError becomes NameErrorwhen using ... delegation and method call indirection - Ruby - Ruby Issue Tracking System
• ZJIT: Specialize some Sends by tekknolagi · Pull Request #14363
• ZJIT: Pessimize locals in the presence of send (with block) by tekknolagi · Pull Request #14374
• Feature #21543: Point ArgumentError to the call site - Ruby - Ruby Issue Tracking System
• ZJIT: Refactor stats implementations by k0kubun · Pull Request #14378
• ZJIT: Add Ractor mode PatchPoint for ivar get/set by st0012 · Pull Request #14375
• ZJIT: Disable profiling in compile_iseq by tekknolagi · Pull Request #14385
• ZJIT: Prepare getglobal for non-leaf call by st0012 · Pull Request #14387
• ZJIT: Add code_region_bytes stat by k0kubun · Pull Request #14389
• ZJIT: Repurpose ExitCounters for unhandled YARV insns by k0kubun · Pull Request #14392
• ZJIT: Remove special case for defined?(method call) by tekknolagi · Pull Request #14401
• YJIT: Drop yjit-bench CI job by k0kubun · Pull Request #14394
• ZJIT: Specialize monomorphic GetIvar by tekknolagi · Pull Request #14388
• YJIT: Stop sharing rb_vm_send among different instructions by k0kubun · Pull Request #14393
• Bug #21538: initialize_dup not called when duping class/module - Ruby - Ruby Issue Tracking System
• Feature #21262: Proposal: Ractor::Port - Ruby - Ruby Issue Tracking System
• ZJIT: Bump default --zjit-call-threshold to 30 by k0kubun · Pull Request #14410
• ZJIT: Unskip a Ractor bootstrap test by st0012 · Pull Request #14421
• ZJIT: NewRangeFixnum instruction by altxtech · Pull Request #14409
• Update rbs sha to the latest aaa-3.9.x by k0kubun · Pull Request #14426
• ZJIT: Propagate and count CompileError on exits by k0kubun · Pull Request #14408
• ZJIT: Rename gen_save_pc to gen_prepare_call_with_gc by k0kubun · Pull Request #14427
• ZJIT: Clear jit entry from iseqs after TracePoint activation by st0012 · Pull Request #14407
• ZJIT: Remove unneeded test exclusions by st0012 · Pull Request #14430
• ZJIT: Use inspect_err on Result values by k0kubun · Pull Request #14431
• ZJIT: Handle opt_case_dispatch insn by st0012 · Pull Request #14433
• ZJIT: Count exits coming from jit_exception by k0kubun · Pull Request #14428
• ZJIT: Ensure clippy passes and silence unnecessary warnings by aidenfoxivey · Pull Request #14439
• Bug #21534: ppc64le bootstraptest/test_ractor.rb aborted (core dumped) on configure cppflags=-DRUBY_DEBUG and -O3 - Ruby - Ruby Issue Tracking System
• ZJIT: Support compiling ISEQs for opt_pc = 0 by k0kubun · Pull Request #14441
• ZJIT: Add patchpoint for TracePoint by st0012 · Pull Request #14420
• ZJIT: Fix Rust compilation warning by st0012 · Pull Request #14443
• ZJIT: Compile invokesuper with dynamic dispatch by k0kubun · Pull Request #14444
• ZJIT: Run test-basic as well by k0kubun · Pull Request #14447
• ZJIT: Remove unneeded tracing and thread test exclusions by st0012 · Pull Request #14453
• ZJIT: Invalidate local variables on EP escape by k0kubun · Pull Request #14448
• ZJIT: Stop optimizing toplevel locals by k0kubun · Pull Request #14458
• ZJIT: Merge make check jobs by k0kubun · Pull Request #14459
• ZJIT: Fix tests for ZJIT by k0kubun · Pull Request #14460
• Bug #21563: Misleading error message when to_proc does not return a Proc in an Object used as a &block argument - Ruby - Ruby Issue Tracking System
• Bug #21131: IO.copy_stream: yielded string changes value when duped - Ruby - Ruby Issue Tracking System
• ZJIT: Add --zjit-stats=quiet option to collect stats without printing by rwstauner · Pull Request #14467
• ZJIT: Fix backtraces on opt_new by k0kubun · Pull Request #14461
• YJIT: Add more information to an assert message in jit_guard_known_class by k0kubun · Pull Request #14480
• ZJIT: Fix 30k if stmt test by aidenfoxivey · Pull Request #14446
• ZJIT, YJIT: Make the workflow names consistent with file names by k0kubun · Pull Request #14462
• ZJIT: Avoid mutating string in zjit stats by composerinteralia · Pull Request #14485
• ZJIT: Optimize ObjToString with type guards by altxtech · Pull Request #14469
• ZJIT: Implement getblockparamproxy by k0kubun · Pull Request #14483
• ZJIT: Remove unneeded omission for optional param test by st0012 · Pull Request #14488
• ZJIT: Resurrect --seed to stabilize CI by k0kubun · Pull Request #14489
• Bug #21567: Crash when $LOADED_FEATURES is modified during require - Ruby - Ruby Issue Tracking System
• ZJIT: Compile ISEQs with forwardable parameters by k0kubun · Pull Request #14491
• YJIT: Stop sharing rb_vm_invokesuper among different instructions by k0kubun · Pull Request #14492
• ZJIT: Support invokeblock insn by st0012 · Pull Request #14496
• [DOC] ZJIT: Add a section for stats by st0012 · Pull Request #14497
• ZJIT: Set ZJIT_RB_BUG to help debugging CI issues by st0012 · Pull Request #14500
• YJIT: Rename make yjit-smoke-test to make yjit-check by k0kubun · Pull Request #14502
• ZJIT: Revert self_val removal and rename it to recv by st0012 · Pull Request #14504
• YJIT: Tiny refactors by st0012 · Pull Request #14505
• Rename VM instruction classes to singular names by k0kubun · Pull Request #14507
• Explicitly declare VM instruction dependencies by k0kubun · Pull Request #14509
• ZJIT, YJIT: Drop "// From xxx.h" comments in bindgen by k0kubun · Pull Request #14519
• Bug #21561: Wrong encoding for File.dirname result on Windows - Ruby - Ruby Issue Tracking System
• [DOC] Tweaks for String#match? by BurdetteLamar · Pull Request #14477
• [DOC] Tweaks for String#match by BurdetteLamar · Pull Request #14476
• ZJIT: Add specific dynamic send type counters by st0012 · Pull Request #14528
• Feature #17398: SyntaxError in endless method - Ruby - Ruby Issue Tracking System
• ZJIT: Let fallbacks handle unknown call types by k0kubun · Pull Request #14518
• ZJIT: Share more code with YJIT in jit.c by k0kubun · Pull Request #14520
• Explicitly use a ruby version for prism to parse the code as by Earlopain · Pull Request #14523
• Feature #20925: Allow boolean operators at beginning of line to continue previous line - Ruby - Ruby Issue Tracking System
• Bug #21528: SyntaxError#message may have broken encoding with multibyte source under Prism - Ruby - Ruby Issue Tracking System
• ZJIT: Support compiling block args by k0kubun · Pull Request #14537
• ZJIT: Revert VM_CALL_ARGS_SPLAT and VM_CALL_KWARG support by k0kubun · Pull Request #14565
• ZJIT: Print local names in FrameState by tekknolagi · Pull Request #14571
• ZJIT: Debug mechanism to verify leafness for gen_prepare_call_with_gc by altxtech · Pull Request #14553
• ZJIT: Revert documentation indent by aidenfoxivey · Pull Request #14580
• ZJIT: Add stat for def_type of send fallbacks by st0012 · Pull Request #14533
• ZJIT: Split Insn::Const from Insn::GetBlockParamProxy by k0kubun · Pull Request #14583
• Use ec->interrupt_mask to prevent interrupts. by ioquatix · Pull Request #14588
• ZJIT: Annotate BasicObject#initialize by tekknolagi · Pull Request #14590
• ZJIT: Support variadic C calls by st0012 · Pull Request #14575
• ZJIT: Compile sendforward with dynamic dispatch by k0kubun · Pull Request #14501
• ZJIT: Count writes to the VM frame by tekknolagi · Pull Request #14597
• ZJIT: Put exit reasons later in stats_string by k0kubun · Pull Request #14599
• ZJIT: Test disasm with insta by k0kubun · Pull Request #14602
• ZJIT: Measure reading/writing locals with level > 0 by tekknolagi · Pull Request #14601
• Make it easier to reproduce commands from CI by rwstauner · Pull Request #14609
• ZJIT: Fix disasm tests on release build by k0kubun · Pull Request #14612
• ZJIT: Avoid unnecessary PopOpnds and PushOpnds codegen by st0012 · Pull Request #14614
• ZJIT: Refactor NewRangeFixnum by altxtech · Pull Request #14607
• ZJIT: Improve zjit_bisect.rb by st0012 · Pull Request #14592
• Clarify what happens when IO.popen's block returns by rwstauner · Pull Request #14626
• ZJIT: Add polymorphism counters by aidenfoxivey · Pull Request #14608
• YJIT: Pass iseq pointer to get/set classvariable functions by st0012 · Pull Request #14625
• ZJIT: Clean up RangeType by tekknolagi · Pull Request #14627
• ZJIT: Add more type information to DefinedIvar by tekknolagi · Pull Request #14628
• ZJIT: Clarify --zjit-disable-hir-opt job names by k0kubun · Pull Request #14632
• ZJIT: Guard receiver class for CCallVariadic by k0kubun · Pull Request #14630
• Feature #21550: Ractor.shareable_proc/shareable_lambda to make sharable Proc object - Ruby - Ruby Issue Tracking System
• ZJIT: Support gdb for debugging zjit-test by k0kubun · Pull Request #14637
• ZJIT: Add stack overflow check to gen_ccall_variadic by st0012 · Pull Request #14636
• ZJIT: Allow testing JIT code on zjit-test by k0kubun · Pull Request #14639
• ZJIT: Add Ruby class objects to HIR type lattice automatically by tekknolagi · Pull Request #14647
• ZJIT: Incorporate bb0-prologue and PC check into HIR by k0kubun · Pull Request #14643
• ZJIT: Prefer *const u8 for consts by k0kubun · Pull Request #14652
• Bug #21569: [armv7, musl] SIGBUS in ibf_load_object_float due to unaligned VFP double load when reading IBF - Ruby - Ruby Issue Tracking System
• Bug #21342: Segfault: invalid keeping_mutexes when using Mutex in Thread then Fiber after GC - Ruby - Ruby Issue Tracking System
• ZJIT: Compile ISEQ with optional arguments by k0kubun · Pull Request #14653
• ZJIT: Incorporate parameter loads into HIR by k0kubun · Pull Request #14659
• ZJIT: Add stats for cfuncs that are not optimized by st0012 · Pull Request #14638
• ZJIT: Count dynamic instance variable lookups by tekknolagi · Pull Request #14615
• ZJIT: Inline attr_accessor/attr_writer to SetIvar by tekknolagi · Pull Request #14629
• ZJIT: Revert SetIvar specialization by tekknolagi · Pull Request #14673
• ZJIT: Unify fallback counters for send-ish insns by k0kubun · Pull Request #14676
• ZJIT: Add --zjit-trace-exits by aidenfoxivey · Pull Request #14640
• ZJIT: Fix "malformed format string" on stats by k0kubun · Pull Request #14681
• ZJIT: Rust code refactors by st0012 · Pull Request #14687
• ZJIT: Decouple stats and side exit tracing by aidenfoxivey · Pull Request #14688
• ZJIT: Re-apply attr_writer inlining by tekknolagi · Pull Request #14678
• ZJIT: Add more *_send_count stats by k0kubun · Pull Request #14689
• ZJIT: Allow higher profile num by st0012 · Pull Request #14698
• Bug #21568: Requiring core libraries when already requiring multiple user defined libraries with the same name can error - Ruby - Ruby Issue Tracking System
• ZJIT: Enable sample rate for side exit tracing by aidenfoxivey · Pull Request #14696
• ZJIT: Add NoSingletonClass patch point by st0012 · Pull Request #14680
• Bug #21620: master branch: LTO with >= -O2 optimization causes miniruby to segfault in vm_cc - Ruby - Ruby Issue Tracking System
• ZJIT: Make sure zjit-test-update works in asm tests by k0kubun · Pull Request #14708
• ZJIT: Add HIR for calling Cfunc with frame by st0012 · Pull Request #14661
• ZJIT: Count CCallWithFrame as optimized_send_count by k0kubun · Pull Request #14722
• Migrate notes-github-pr to ruby/ruby by k0kubun · Pull Request #14725
• ZJIT: strengthen test_reset_stats by nvh0412 · Pull Request #14738
• ZJIT: reduce string allocation in the Counter::name() by nvh0412 · Pull Request #14743
• Add a workflow to sync default gems by k0kubun · Pull Request #14749
• Sync Prism by k0kubun · Pull Request #14751
• Resurrect sync from GitHub to git.ruby-lang.org by k0kubun · Pull Request #14765
• Carve out a workflow for post-push hooks by k0kubun · Pull Request #14768
• Bug #21629: Ruby-3.4.7 prints -Wdefault-const-init-field-unsafe warnings on clang / llvm 21 - Ruby - Ruby Issue Tracking System
• Bug #21623: Endless method definition without parenthesis is wrongly accepted in Prism - Ruby - Ruby Issue Tracking System
• Bump RDoc by st0012 · Pull Request #14747
• ZJIT: Use type alias for num-profile and call-threshold's types by st0012 · Pull Request #14777
• post_push.yml: Migrate commit-email.rb to post_push by k0kubun · Pull Request #14779
• Migrate a test for commit-email.rb by k0kubun · Pull Request #14784
• Allow test-tool to use bundled gems in child processes by k0kubun · Pull Request #14794
• compilers.yml: Run only specified tests for --with-gmp by k0kubun · Pull Request #14798
• ZJIT: Profile opt_aref by aidenfoxivey · Pull Request #14778
• ZJIT: Name enum for bindgen by tekknolagi · Pull Request #14802
• Update bundled bigdecimal version by tompng · Pull Request #14809
• ZJIT: Add Insn:: ArrayArefFixnum to accelerate Array#[] by aidenfoxivey · Pull Request #14717
• [DOC] String slices doc by BurdetteLamar · Pull Request #14740
• ZJIT: Count unoptimized Send by st0012 · Pull Request #14801
• Bug #21635: Reading code from STDIN unexpectedly sets $_ in 3.4.6+ - Ruby - Ruby Issue Tracking System
• Bug #21638: Ractor-local $DEBUG is not marked - Ruby - Ruby Issue Tracking System
• [DOC] Fix minor typos in YJIT comments by bugtender · Pull Request #14829
• ZJIT: Inline well-known C functions into HIR by tekknolagi · Pull Request #14679
• ZJIT: Don't push Ruby frame for Thread#current by tekknolagi · Pull Request #14832
• ZJIT: Profile opt_ltlt and opt_aset by tekknolagi · Pull Request #14834
• ZJIT: Profile opt_size, opt_length, opt_regexpmatch2 by tekknolagi · Pull Request #14837
• ZJIT: Centralize the allocation of scratch registers by k0kubun · Pull Request #14815
• ZJIT: Add trace exit counter by aidenfoxivey · Pull Request #14831
• ZJIT: Don't const-fold Array#[] on non-frozen array by tekknolagi · Pull Request #14841
• ZJIT: Add HashAref to HIR and inline Hash#[] to HashAref by aidenfoxivey · Pull Request #14838
• ZJIT: Inline String#getbyte by tekknolagi · Pull Request #14842
• ZJIT: Profile opt_succ and inline Integer#succ for Fixnum by tekknolagi · Pull Request #14846
• ZJIT: Inline BasicObject#initialize by tekknolagi · Pull Request #14856
• ZJIT: Break out patchpoint exit reasons by tekknolagi · Pull Request #14858
• ZJIT: Don't push frame for String#empty? by jacob-shops · Pull Request #14836
• ZJIT: Don't push frame for Hash#size by jacob-shops · Pull Request #14871
• ZJIT: Mark commonly-edited files as merge=union by tekknolagi · Pull Request #14865
• ZJIT: Add inlining for Kernel#respond_to? by aidenfoxivey · Pull Request #14873
• Bug #21644: Stack consistency error for the newrange INSN peephole optimization with chilled string - Ruby - Ruby Issue Tracking System
• ZJIT: Implement expandarray by tekknolagi · Pull Request #14847
• ZJIT: Remove idx from hir::Insn::Param by tekknolagi · Pull Request #14872
• ZJIT: Optimize send with block into CCallWithFrame by st0012 · Pull Request #14863
• ZJIT: Implement codegen for FixnumMod by tekknolagi · Pull Request #14857
• [DOC] Tweaks for String#rstrip by BurdetteLamar · Pull Request #14881
• [DOC] Tweaks for String#scan by BurdetteLamar · Pull Request #14884
• [DOC] Tweaks for String#scrub! by BurdetteLamar · Pull Request #14893
• [DOC] Tweaks for String#scrub by BurdetteLamar · Pull Request #14892
• ZJIT: Specialize String#<< to StringAppend by aidenfoxivey · Pull Request #14861
• ZJIT: Support make in zjit_bisect.rb by tekknolagi · Pull Request #14584
• ZJIT: Fix some dead code in the backend by k0kubun · Pull Request #14897
• ZJIT: Inline simple SendWithoutBlockDirect by tekknolagi · Pull Request #14888
• ZJIT: Revert removal of empty samples from zjit trace exits by aidenfoxivey · Pull Request #14905
• ZJIT: Handle invalid Counter on --zjit-trace-exits=counter by aidenfoxivey · Pull Request #14911
• ZJIT: Disable not-annotated cfuncs in --zjit-stats by tekknolagi · Pull Request #14915
• ZJIT: Inline Kernel#block_given? by tekknolagi · Pull Request #14914
• intern.h: mark rb_num_zerodiv as NORETURN by xiw · Pull Request #147
• [ZJIT] Implement classvar get and set by composerinteralia · Pull Request #14918
• ZJIT: Use iseq pointer directly in get/set class var codegen by st0012 · Pull Request #14921
• ZJIT: Inline << and push for Array in single arg case by aidenfoxivey · Pull Request #14926
• ZJIT: Add tests for non-leaf classvar get and set by composerinteralia · Pull Request #14924
• ZJIT: Specialize string length, bytesize, and size by jacob-shops · Pull Request #14928
• Bug #21648: [prism] ruby crashes for for * in [10]; end - Ruby - Ruby Issue Tracking System
• ZJIT: Remove a duplicated annotation by k0kubun · Pull Request #14968
• ZJIT: Print out full path to --zjit-trace-exits output by tekknolagi · Pull Request #14966
• ZJIT: Fix internal compiler error looking up profiles for trace_getinstancevariable by tekknolagi · Pull Request #14969
• ZJIT: Specialize Array#pop for no argument case by aidenfoxivey · Pull Request #14933
• ZJIT: Split HIR tests by aidenfoxivey · Pull Request #14967
• ZJIT: Support ParallelMov into memory by k0kubun · Pull Request #14975
• ZJIT: Drop --seed from test-all on CI by k0kubun · Pull Request #14976
• ZJIT: Add type checker to HIR by tekknolagi · Pull Request #14978
• Bug #21652: Marshal#dump documentation out-of-date/unclear regarding Data class - Ruby - Ruby Issue Tracking System
• ZJIT: Introduce a better LIR printer by k0kubun · Pull Request #14986
• ZJIT: Fix LoadIvarExtended test by tekknolagi · Pull Request #14989
• [DOC] ZJIT: Add documentation about native stack and Ruby's VM stack by st0012 · Pull Request #14993
• ZJIT: Fix incorrect self.class.respond_to? folding by tekknolagi · Pull Request #15001
• ZJIT: Split out optimized method types in stats by tekknolagi · Pull Request #15002
• ZJIT: Prevent specialization of splats instead of side-exiting by aidenfoxivey · Pull Request #15005
• Change load factor of concur. set from 0.5 to 0.75 by luke-gru · Pull Request #15007
• ZJIT: Run ruby-bench as a test suite by k0kubun · Pull Request #15003
• ZJIT: Simplify some profiling APIs by tekknolagi · Pull Request #15017
• ZJIT: Let AssemblerPanicHook write into stderr by k0kubun · Pull Request #15019
• ZJIT: Optimize VM_METHOD_TYPE_ALIAS by tekknolagi · Pull Request #15018
• ZJIT: Standardize variable name for callable method entry by st0012 · Pull Request #15021
• Update bundled irb and repl_type_completor version by tompng · Pull Request #15030
• Avoid taking vm barrier in heap_prepare() by luke-gruber · Pull Request #14425
• ZJIT: Implement include_p for opt_(new|dup)array_send YARV insns by rwstauner · Pull Request #14885
• ZJIT: Inline String#bytesize by Max-Leopold · Pull Request #15033
• ZJIT: Implement register spill by k0kubun · Pull Request #14936
• [DOC] Mention on top of vm_*.c files the VM translation unit they're in by XrXr · Pull Request #15048
• Release VM lock before running finalizers by luke-gruber · Pull Request #15050
• ZJIT: Add test to reproduce binarytrees crash by rwstauner · Pull Request #15054
• ZJIT: Fix --zjit-mem-size and add --zjit-exec-mem-size by k0kubun · Pull Request #15041
• ZJIT: Use a shared trampoline across all ISEQs by k0kubun · Pull Request #15042
• Don't run global variable hook functions with VM lock held by luke-gruber · Pull Request #15053
• Bug #21664: Segfault when running Ractor tests in the same process - Ruby - Ruby Issue Tracking System
• ZJIT: Run ruby-bench CI for macOS arm64 as well by k0kubun · Pull Request #15040
• ZJIT: Track guard shape exit ratio by rwstauner · Pull Request #15052
• ZJIT: Add zjit_alloc_bytes and total_mem_bytes stats by k0kubun · Pull Request #15059
• ZJIT: Don't side-exit on VM_CALL_KWARG just SendWithoutBlock by rwstauner · Pull Request #15065
• ZJIT: Profile specific objects for invokeblock by tekknolagi · Pull Request #15051
• [DOC] Update glossary by rwstauner · Pull Request #15070
• ZJIT: Use interpreter inline cache in setinstancevariable by tekknolagi · Pull Request #14925
• ZJIT: Restore dropped_bytes after temporary OOM by k0kubun · Pull Request #15069
• zjit-macos.yml: Unset MAKEFLAGS before ruby-bench by k0kubun · Pull Request #15084
• ZJIT: Untag block handler by tekknolagi · Pull Request #15085
• ns_subclasses refcount accesses need to be atomic by luke-gruber · Pull Request #15083
• ZJIT: Fix an incomplete comment by k0kubun · Pull Request #15088
• ZJIT: Remove obsolete register spill counters by k0kubun · Pull Request #15089
• Feature #19630: [RFC] Deprecate Kernel#open("|command-here") due to frequent security issues - Ruby - Ruby Issue Tracking System
• ZJIT: Carve out IseqPayload into a separate module by k0kubun · Pull Request #15098
• ZJIT: Add compilation for checkkeyword by jacob-shops · Pull Request #14764
• Bug #21671: Rails CI raises Assertion Failed: rbimpl_rstring_getmem:RB_TYPE_P(str, RUBY_T_STRING): actual type: 26 with "-DENABLE_PATH_CHECK=0 -DRUBY_DEBUG=1" enabled - Ruby - Ruby Issue Tracking System
• ZJIT: Specialize String#setbyte for fixnum case by aidenfoxivey · Pull Request #14927
• [DOC] Tweaks for String#to_i by BurdetteLamar · Pull Request #15036
• Bug #21673: Segmentation Fault in IRB when refining Kernel#puts using Module#refine (Regression since Ruby 3.4) - Ruby - Ruby Issue Tracking System
• Automatically review default-gem pull requests by k0kubun · Pull Request #15116
• ZJIT: Deduplicate side exits by k0kubun · Pull Request #15105
• ZJIT: Snapshot once per YARV insn by tekknolagi · Pull Request #15082
• ZJIT: Add patch_point_count stat by k0kubun · Pull Request #15100
• ZJIT: Rename not_optimized_instruction to uncategorized_instruction by rwstauner · Pull Request #15130
• ZJIT: Split unhandled_hir_insn and unknown_newarray_send stats by k0kubun · Pull Request #15127
• Bug #21614: thread_sched_wait_events race with timer_thread_wakeup - Ruby - Ruby Issue Tracking System
• [DOC] Clarify Thread#kill documentation. by luke-gruber · Pull Request #15132
• Bug #21265: Crash when proc from Symbol#to_proc called outside refinement scope - Ruby - Ruby Issue Tracking System
• ZJIT: Set cfp->sp on leaf calls with GC by k0kubun · Pull Request #15137
• ZJIT: Rename things so that they aren't named "not_optimized_optimized" by rwstauner · Pull Request #15135
• Fix bootstraptest runner driver message by rwstauner · Pull Request #15072
• Bug #21666: Math.lgamma(-1).should == [infinity_value, 1] fails with Fedora glibc-2.42.9000-8.fc44 - Ruby - Ruby Issue Tracking System
• Bug #21655: segfault when building 3.3.10 with GCC 15.2.1, regression from 3.3.9 - Ruby - Ruby Issue Tracking System
• Update Ruby version to 4.0 for the cgi warnings by yahonda · Pull Request #15141
• Bug #21680: Integer#digits bug starting from Ruby 3.1 - Ruby - Ruby Issue Tracking System
• ZJIT: Add standalone JSON implementation by aidenfoxivey · Pull Request #15162
• ZJIT: Revert patch_point_count counter by k0kubun · Pull Request #15160
• Bug #21683: IO#each_codepoint do not take care of encoding when IO uses encoding conversion for reading. - Ruby - Ruby Issue Tracking System
• Bug #21654: Set#new calls extra methods compared to previous versions - Ruby - Ruby Issue Tracking System
• Bug #21679: Segfault when ruby calls pthread_detach in rb_getnameinfo - Ruby - Ruby Issue Tracking System
• ZJIT: Use Mem.num_bits in Mem split by tekknolagi · Pull Request #15177
• Feature #21275: Update to Unicode 17.0 - Ruby - Ruby Issue Tracking System
• Feature #21572: Make illegal variable in alternation pattern a syntax error - Ruby - Ruby Issue Tracking System
• Bug #21661: Endless method definition as a default value of block parameter is wrongly accepted in Prism - Ruby - Ruby Issue Tracking System
• ZJIT: Add tests for sending to methods with keyword args by rwstauner · Pull Request #15183
• ZJIT: Skip a flaky DNS test by k0kubun · Pull Request #15192
• ZJIT: Break out CFunc send fallback stats by tekknolagi · Pull Request #15193
• vm_dump.c: unbreak unwind on powerpc by barracuda156 · Pull Request #14650

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

Full Changelog

https://github.com/ruby/ruby/compare/v3_5_0_preview1...v4.0.0-preview2