Allow constants with type declarations (#16951, thanks @stakach)
(macros) Add StringLiteral#bytesize (#17176, thanks @straight-shoota)
(macros) Add NumberLiteral#chr (#17169, thanks @straight-shoota)
(macros) Support CharLiteral in RangeLiteral#each (#17170, thanks @straight-shoota)

stdlib

Add warning about minimum supported Crystal version in prelude (#17349, thanks @straight-shoota)
(crypto) Enable OpenSSL Kernel TLS support by default (#17059, thanks @ysbaddaden)
(crypto) Add OpenSSL::Cipher#gcm_tag and #gcm_tag= for AEAD ciphers (#17096, thanks @paulocoghi)
(files) Add IO::Memory#writable? (#17167, thanks @spuun)
(llvm) Support LLVM 23.1 and 24.0 (#17432, thanks @HertzDevil)
(macros) Add all enum types to Enum's list of subclasses (#17425, thanks @HertzDevil)
(networking) Add HTTP::Context#remote_address, #local_address (#17196, thanks @straight-shoota)
(networking) Validate method, version, and host in HTTP::WebSocketHandler (#17235, thanks @hahwul)
(networking) HTTP::Client::Request support Content-Encoding: x-gzip (#17263, thanks @straight-shoota)
(networking) Add HTTP::Headers#merge (#17326, thanks @jgaskins)
(networking) Serialize IO::Memory in HTTP body with Content-Length header (#17388, thanks @straight-shoota)
(runtime) Add GC.syscall(&) (#17150, thanks @ysbaddaden)
(runtime) Add Thread#wait and Thread#wake methods (#17226, #17243, #17247, #17380, #17419, thanks @ysbaddaden)
(runtime) Add Crystal::LRUCache (#17284, thanks @ysbaddaden)
(runtime) Add GC.max_heap_size= (#17346, thanks @straight-shoota)
(runtime) Use epoll event loop on Solaris targets (#17370, thanks @ysbaddaden)
(runtime) DWARF: build function names table for fast binary search (#17410, #17433, thanks @ysbaddaden)
(runtime) Enable kqueue event-loop by default on all BSD targets (#17421, thanks @ysbaddaden)
(runtime) DWARF: build index of .debug_line section (#17455, thanks @ysbaddaden)
(runtime) Support Bytes in Crystal::System.printf(%s) (#17463, thanks @ysbaddaden)
(runtime) Support DW_FORM_addrx<n> and DW_FORM_strx<n> from DWARF 5 (#17445, thanks @ysbaddaden)
(runtime) Add Fiber::ExecutionContext::Parallel#scale_up to manually scale parallel contexts (#17438, thanks @ysbaddaden)
(runtime) Re-enable pretty backtraces in UNIX segfault handler (#17456, thanks @ysbaddaden)
(serialization) Add XML::Node#line_number (#17179, thanks @n-rodriguez)
(system) Include exit code in Process::Status#description (#17087, thanks @straight-shoota)
(system) Add File::Info#inspect (#17375, thanks @straight-shoota)
(system) Add File.exists?(follow_symlinks: true) (#17307, #17600, thanks @straight-shoota, @ysbaddaden)
(system) File::Info.readable?, .writable?, .executable? follow_symlinks: false (#17391, thanks @straight-shoota)
(text) Add Char::Reader.new(Bytes) (#17428, thanks @straight-shoota)
(time) Add Time::Span#to_nanoseconds etc. (#17190, thanks @straight-shoota)

compiler

(cli) Improve compiler error when writing cross-compile output fails (#17457, thanks @ralsina)
(parser) Fix parsing suffix form of ensure after an ExceptionHandler (#17426, #17460, thanks @Sija)
(semantic) Add Crystal::ALL_FLAGS and USER_FLAGS (#17392, #17621, thanks @straight-shoota)
(semantic) Fix method_missing call location metadata (#17465, thanks @nobodywasishere)

tools

(docs-generator) Update markd 0.6.0 (#17269, thanks @straight-shoota)

Bugfixes

stdlib

(cli) Fix bundled short options not consuming a value from the next argument (#17473, thanks @alter)
(collection) Fix invalid access in BitArray#[](Int, Int) (#17205, thanks @HertzDevil)
(collection) Fix Range#step raise on zero step size (#17225, thanks @straight-shoota)
(collection) Fix Range#size overflow on max integer value (#17266, thanks @mvanhorn)
(collection) Fix each_repeated_combination iterator raising on an empty collection (#17275, thanks @SAY-5)
(concurrency) Sync::RWLock#try_write_lock? skips type protection (#17472, thanks @ysbaddaden)
(files) invalid resize when writing IO::Memory to itself (#17241, thanks @ysbaddaden)
(llvm) Add pointer indirection for __crystal_type_id_to_class_name_map (#17502, thanks @HertzDevil)
(llvm) Fix LLVM#gep and #inbounds_gep signatures with multiple indices (#17538, thanks @HertzDevil)
(networking) Reject unrecognized HTTP Transfer-Encoding header (#17140, thanks @straight-shoota)
(networking) Reject HTTP::Client::Response with invalid Content-Encoding (#17262, thanks @straight-shoota)
(networking) Fix HTTP::Request.from_io parsing empty header name (#17254, thanks @straight-shoota)
(networking) [breaking] Fix HTTP::Request#body= return value (#17257, thanks @straight-shoota)
(networking) Fix Content-Encoding: deflate (#17261, thanks @straight-shoota)
(networking) Fix validation in Request#hostname (#17258, thanks @straight-shoota)
(networking) Fix HTTP::Request#form_params? to ignore invalid content-type (#17256, thanks @straight-shoota)
(networking) Fix HTTP.parse_headers_and_body to not raise with without_zlib (#17272, thanks @straight-shoota)
(networking) Validate HTTP::Request#method (#17255, thanks @straight-shoota)
(networking) Validate HTTP::Request#version (#17304, #17374, thanks @straight-shoota, @Sija)
(networking) Fix HTTP::Request#content_length= return value (#17273, thanks @straight-shoota)
(networking) Validate HTTP::Request#resource (#17310, thanks @straight-shoota)
(networking) Fix Socket#sendfile when count > file.size (#17286, thanks @straight-shoota)
(networking) Fix File#sendfile should not move #pos (#17293, thanks @straight-shoota)
(networking) Fix IPv6 address passed to OpenSSL::SSL::Socket::Client.new for OpenSSL 4.0 (#17321, thanks @HertzDevil)
(networking) Fix HTTP::VALID_TOKEN_CHAR_MAP for Crystal < 1.16 (#17333, thanks @straight-shoota)
(networking) Fix validate HTTP::Headers name (#17317, thanks @straight-shoota)
(networking) Close HTTP::Client on IO::Error during request (#17318, thanks @jgaskins)
(networking) Fix reject invalid HTTP trailer (#17337, thanks @straight-shoota)
(networking) Validate HTTP::Request#content_length and type as Int64 (#17312, thanks @straight-shoota)
(networking) Fix keep HTTP::Request#content_length in sync with #body (#17389, thanks @straight-shoota)
(networking) Fix WebSocket buffer corruption with interleaved control frame (#17553, thanks @straight-shoota)
(networking) Fix WebSocket::Protocol#receive to validate masked/unmasked state (#17562, #17603, thanks @straight-shoota)
(networking) Fix WebSocket reject mixed opcode continuation (#17552, thanks @straight-shoota)
(numeric) Fix BigRational#<=> with an infinite Float (#17223, thanks @youdie006)
(numeric) Fix Int#humanize_bytes to use KiB in IEC format (#17234, thanks @kojix2)
(runtime) ThreadPool#main_thread_loop (#17194, thanks @ysbaddaden)
(runtime) free dead fiber stack when there's no stack pool (#17229, thanks @ysbaddaden)
(runtime) support bare threads in crystal/once (#17228, thanks @ysbaddaden)
(runtime) io_uring event loop hangs on sendfile (#17299, thanks @ysbaddaden)
(runtime) correctly iterate ELF file sections (#17327, thanks @ysbaddaden)
(runtime) backtraces on musl-libc when linking with -static-pie (#17316, thanks @ysbaddaden)
(runtime) abort on out-of-memory instead of segfaulting (#17111, #17345, thanks @carlhoerberg, @straight-shoota)
(runtime) enqueue thread once into thread pool (#17350, thanks @ysbaddaden)
(runtime) save stdio closed state on program start (#17378, thanks @ysbaddaden)
(runtime) rewrite thread pool logic to avoid race conditions (#17400, thanks @ysbaddaden)
(runtime) don't propagate trace environment variables to sub-processes (#17402, thanks @ysbaddaden)
(runtime) tracing 128 bit integers (#17403, thanks @ysbaddaden)
(runtime) kqueue event loop on NetBSD (#17420, thanks @ysbaddaden)
(runtime) [regression] Fix COFF symbols table being empty on MinGW-w64 (#17442, thanks @HertzDevil)
(runtime) Fix running on CPUs with cpu_count > UInt8::MAX (#17437, thanks @willhbr)
(runtime) parallel schedulers may deadlock each other (#17491, thanks @ysbaddaden)
(runtime) crystal/once must cleanup when an exception is raised (#17546, thanks @ysbaddaden)
(runtime) auto-scaling of multiple execution contexts (#17514, thanks @ysbaddaden)
(runtime) Distinguish kqueue registration errors from kevent errors (#17599, thanks @ysbaddaden)
(serialization) Fix CSV error line numbers with CRLF input (#17381, thanks @cuishuang)
(serialization) Fix CSV builder to escape CR characters (#17548, thanks @ysbaddaden)
(system) [regression] Fix missing NULL terminator for execve vargs (#17184, thanks @sdogruyol)
(system) Fix Process.new to close pipes on error (#17297, thanks @straight-shoota)
(system) [breaking] Add IO::FileDescriptor#exit_on_broken_pipe (#17335, thanks @straight-shoota)
(system) Skip inaccessible candidates for Process.find_executable (#17409, thanks @mvanhorn)
(system) Fix FileUtils.mv(Enumerable) swallowing errors (#17407, thanks @LaskaIDK)
(system) Ignore all File::Error in Process.find_executable (#17542, thanks @jochenseeber)
(text) Fix String#gsub when Regex pattern matches empty string and advances (#17204, thanks @HertzDevil)
(text) Fix URI#resolve for path without / (#17213, thanks @straight-shoota)
(text) Handle consecutive whitespace in String#titleize (#17206, thanks @HertzDevil)
(text) Fix String#each_line(remove_empty: true) with many empty lines (#17242, thanks @straight-shoota)
(text) Fix Char::Reader#pos= to raise on negative position (#17382, thanks @straight-shoota)
(text) Fix Char::Reader#current_char_width to be zero at end (#17405, thanks @straight-shoota)
(text) Fix String#compare(case_insensitive: true) to order invalid byte sequences (#17314, thanks @straight-shoota)
(text) Fix Char::Reader.new to raise on an invalid position (#17416, thanks @youdie006)
(text) Fix PCRE2#jit_compile to accept nomemory error for implicit fallback (#17559, thanks @straight-shoota)
(time) Fix local timezone location name for Android (#17248, thanks @HertzDevil)
(time) Fix Time::Location.load? for Android (#17249, thanks @HertzDevil)

compiler

Fix vswhere ignoring ARM64-only MSVC installations (#17395, thanks @HertzDevil)
(codegen) Codegen doesn't materialize an unused yield block value in debug builds, pt. 2 (#17130, thanks @nobodywasishere)
(codegen) Unify LLVM types used for ReferenceStorage (#17397, thanks @HertzDevil)
(codegen) Do not access owner type in dispatch if it is not passed at runtime (#17424, thanks @HertzDevil)
(codegen) cross-compile crashes when combined with emit llvm-bc or obj (#17510, thanks @ysbaddaden)
(codegen) Fix memory leak in mixed union assignments (#17518, thanks @ysbaddaden)
(codegen) Fix SysV ABI classification of word containing Float32 followed by integer (#17572, thanks @HertzDevil)
(codegen) Respect ABI info when explicitly returning inside top-level funs (#17616, thanks @HertzDevil)
(debugger) Fix lldb-dap crash on Windows when loading Crystal formatters (#17448, thanks @magynhard)
(interpreter) Fix interpreter dispatch on a virtual struct narrowed from a union (#17450, thanks @jochenseeber)
(parser) Fix parse OP_SLASH after block (#17159, thanks @straight-shoota)
(parser) Fix suffix ExceptionHandler#location in an assignment (#17365, thanks @Sija)
(parser) Fix global calls shadowed by local variables (#17558, thanks @grepsedawk)
(semantic) Fix instance variable initializer using a class variable assignment (#17148, thanks @nobodywasishere)
(semantic) Fix bug allowing self in private top-level method (#17149, thanks @nobodywasishere)
(semantic) Fix dynamic class declaration macro error (#17274, thanks @nobodywasishere)
(semantic) Backfill included type to existing instantiations (#17094, thanks @straight-shoota)
(semantic) Fix ICE when module with ivar is included in a type that can't have them (#17386, thanks @bcardiff)
(semantic) Disallow instance_sizeof and instance_alignof on Void or NoReturn (#17453, thanks @HertzDevil)

tools

(formatter) Fix formatter for setter assignment with parenthesized values (#17083, thanks @mamantoha)
(formatter) formatter unescapes fresh variables (#17517, thanks @ysbaddaden)

Chores

lang

[deprecation] Deprecate uppercase instance and class variables (#17160, thanks @nobodywasishere)

stdlib

(llvm) [deprecation] Deprecate LLVM::Type#size and #alignment (#17494, #17533, thanks @HertzDevil)
(networking) [deprecation] Deprecate HTTP::Request#local_address and #remote_address (#17260, thanks @straight-shoota)

compiler

(codegen) Drop Compiler#fork_codegen (#16417, thanks @straight-shoota)

other

Fix deprecation warnings in samples (#17342, thanks @HertzDevil)

Performance

stdlib

(networking) Optimize HTTP.header_name (#14503, thanks @jgaskins)
(runtime) Keep decoded backtrace lines into LRU cache (#17285, thanks @ysbaddaden)
(text) Optimize String#byte_index(Int) (#17303, thanks @HertzDevil)
(text) Optimize String#gsub(String) and #scan(String) (#17305, thanks @HertzDevil)

Refactor

stdlib

(collection) Optimize buffer size in Enum.parse? with StringLiteral#bytesize (#17193, thanks @straight-shoota)
(networking) Refactor Socket::IPAddress interface index conversion (#17250, thanks @HertzDevil)
(networking) Refactor RequestProcessor#process to receive a single IO (#17461, thanks @straight-shoota)
(numeric) Use unchecked arithmetic in compiler-rt ports (#17180, thanks @HertzDevil)
(numeric) Use native UInt128 in Dragonbox (#16262, thanks @HertzDevil)
(numeric) Format Int MINand MAX constants as hex numbers (#17352, thanks @straight-shoota)
(numeric) Use 128-bit literals (#5545, thanks @Sija)
(runtime) Execution contexts directly enqueue fibers during event loop runs (#17158, thanks @ysbaddaden)
(runtime) Add Runnables#lazy_grab? to skip the mutex on quick dequeue (#17151, thanks @ysbaddaden)
(runtime) Refactor file lock (#17105, thanks @ysbaddaden)
(runtime) Refactor Exception::CallStack.decode_backtrace_frame (#17282, thanks @ysbaddaden)
(runtime) DWARF: scan sections instead of building large tables (#17283, thanks @ysbaddaden)
(text) Refactor Char::Reader#next_char and ivar initialization (#17383, thanks @straight-shoota)
(time) Change Time.zero to create new instance instead of returning ZERO (#17216, thanks @straight-shoota)
(time) Replace Time::Span::ZERO with .zero (#17217, thanks @straight-shoota)
(time) Use Time::Span#to_seconds etc. (#17259, thanks @straight-shoota)

compiler

Refactor Program#define_crystal_constants (#17268, thanks @straight-shoota)
(codegen) Remove Crystal::LLVMBuilderHelper#llvm_size and friends (#17452, thanks @HertzDevil)
(semantic) Refactor RangeLiteral#each (#17195, thanks @straight-shoota)
(semantic) Refactor #interpret_to_range (#17227, thanks @straight-shoota)

other

Remove unnecessary requires (#17306, thanks @straight-shoota)
Do not use relative requires for the standard library (#17320, thanks @HertzDevil)

Documentation

stdlib

(collection) Fix doc example for Hash#put (#17459, thanks @spuun)
(concurrency) Clarify docs for Channel buffered channel close and drain semantics (#17423, thanks @renich)
(numeric) Fix typo in doc comment for Int (#17238, thanks @swsch)
(runtime) Undocument internal GC methods (#17451, thanks @ysbaddaden)
(serialization) Mention #to_pretty_json in JSON documentation (#17131, thanks @LaskaIDK)
(specs) Fix summary line of Spec::Expectations#be docs (#17556, thanks @SatvikMishra08)
(system) Document error behaviour for Dir.mkdir and .mkdir_p (#17240, thanks @LaskaIDK)

compiler

(cli) Fix short option order in docs help (#17129, thanks @kojix2)

other

Fix typos in doc comments (#17244, thanks @swsch)

Specs

stdlib

(networking) Reorganize HTTP::Request spec (#17166, thanks @straight-shoota)
(networking) Add more specs for HTTP::Request (#17218, thanks @straight-shoota)
(networking) Assert return value of Socket#sendfile (#17292, thanks @straight-shoota)
(networking) Fix: link-local zone interface fails with ENXIO on Solaris targets (#17371, thanks @ysbaddaden)
(networking) Fix getaddrinfo with AF_UNSPEC failing with EAI_ADDRFAMILY on FreeBSD (#17358, thanks @ysbaddaden)
(networking) Fix: loopback interface may not be the first interface (#17359, thanks @ysbaddaden)
(networking) Fix: disable dual stack specs on FreeBSD and DragonFly (#17411, thanks @ysbaddaden)
(networking) Add spec for explicit decompressing HTTP request body [follow-up #17476] (#17531, thanks @straight-shoota)
(numeric) Add specs for Big* types compaing against float infinity (#17224, thanks @straight-shoota)
(runtime) Relax threshold for sleep spec with libevent (#17232, thanks @straight-shoota)
(system) Add process-utils for testing process execution (#17047, thanks @straight-shoota)
(system) Always ignore %PROCESSOR_ARCHITECTURE% when running Process specs on MSVC (#17362, thanks @HertzDevil)
(system) Add spec for FileUtils.ln_sf replacing a dangling symlink (#17289, thanks @SAY-5)
(text) Improve specs for Char::Reader (#17354, thanks @straight-shoota)
(text) Add regression spec for multibyte String#split separator (#17338, thanks @wangyusheng1985)

compiler

Refactor new_program spec helper to concat program flags (#17356, thanks @straight-shoota)
(parser) Remove obsolete FIXMEs for array literal parsing (#17347, thanks @straight-shoota)

Infrastructure

Update previous Crystal release 1.21.0 (#17137, thanks @straight-shoota)
Makefile: Add build and manpages targets (#17142, thanks @straight-shoota)
Makefile: Remove all target from help (alias for crystal) (#17157, thanks @straight-shoota)
Update devenv.lock (#17147, #17210, #17245, #17253, #17290, #17330, #17379, #17415, #17181, #17143, thanks @crysbot)
Enable FIXME rules in rumdl.toml configuration (#17171, thanks @straight-shoota)
Update distribution-scripts (#17178, thanks @straight-shoota)
Update crystal version in shard.yml (#17351, thanks @straight-shoota)
bin/crystal: Avoid symlinks in CRYSTAL_PATH (#17355, thanks @straight-shoota)
Fix update-changelog.sh for patch releases (#17479, thanks @straight-shoota)
Merge release/1.21@1.21.1 into master (#17526, thanks @straight-shoota)
devenv: Remove actionlint because it's broken (#17527, thanks @straight-shoota)
renovate: Add custom config for updating shards repo checkout ([#17547], thanks @straight-shoota)
Support ARM64 for the MSVC-based toolchain's GUI installer (#17398, thanks @HertzDevil)
(ci) Fix Inno Setup download URL (#17135, thanks @straight-shoota)
(ci) Update GH Actions (#17185, #17336, #17427, #17458, #17146, #17512, thanks @renovate)
(ci) Update cachix/install-nix-action action to v31.11.1 (#17252, thanks @renovate)
(ci) Upgrade runner to windows-11-vs2026-arm (#17267, thanks @straight-shoota)
(ci) Limit forward-compatibility to last 8 releases (#17332, thanks @straight-shoota)
(ci) Fix allow unsafe PR checkout in backport workflow (#17340, thanks @straight-shoota)
(ci) Switch uses: in GHA workflows to self-repository syntax (#17513, thanks @straight-shoota)
(ci) run std specs on FreeBSD 14 (#17361, thanks @ysbaddaden)
(ci) Run smoke tests on changes that affect codegen (#17545, thanks @straight-shoota)
(ci) Use newer GitHub Action to set up MSVC developer command prompt (#17396, thanks @HertzDevil)
(ci) Update MSVC CI library versions (#17301, thanks @HertzDevil)
(ci) Use explicit development branch version number for LLVM CI (#17497, thanks @HertzDevil)
(ci) Drop macos-14 runner on GitHub CI (#17532, thanks @HertzDevil)
(ci) Bootstrap ARM64 MSVC-based Crystal compiler (#17154, thanks @HertzDevil)
(ci) Use clang-cl to build OpenSSL for ARM64 MSVC CI (#17251, thanks @HertzDevil)
(ci) Build stage-2 compiler on ARM64 MSVC CI (#17363, thanks @HertzDevil)
(ci) Use Cygwin to build libffi for MSVC CI (#17163, thanks @HertzDevil)
(ci) Split MSVC CI third-party libraries onto own workflow (#17287, thanks @HertzDevil)
(ci) Set up NASM manually on MSVC CI (#17429, thanks @HertzDevil)

`v1.21.1`

Compare Source

Bugfixes

stdlib

(collection) [regression] Override Channel#tap(&) to reinstate original behaviour (#17296, thanks @straight-shoota)
(networking) [security] Fix HTTP::Request::Processor resuming connection on unconsumed request (#17434, thanks @straight-shoota)
(networking) Fix non-blocking Socket#connect on Unix (#17436, thanks @ysbaddaden)
(networking) [security] Fix HTTP::Server::RequestProcessor to consume request body before upgrade (#17466, thanks @straight-shoota)
(networking) [security] Fix do not automatically decompress HTTP request body (#17476, thanks @straight-shoota)
(serialization) Fix XML::Node#namespace for node types without namespace (#17435, thanks @straight-shoota)
(serialization) Fix YAML::Any#hash with self-referencing containers (#17477, thanks @straight-shoota)

Infrastructure

Add changelog for 1.21.1 (#17478, thanks @straight-shoota)
Update distribution-scripts (#17480, thanks @straight-shoota)

`v1.21.0`

Compare Source

Breaking changes

stdlib

(runtime) Release: Execution Contexts (#17100, #17104, thanks @ysbaddaden)
(text) Disable automatic fallback to legacy PCRE (#16924, thanks @straight-shoota)

Features

lang

Add %W percent string array literals with interpolation (#16919, thanks @straight-shoota)
(macros) Add TypeNode#all_methods that includes the type's ancestor's methods (#16902, thanks @Blacksmoke16)

stdlib

(cli) Align long-only options in OptionParser help (#16914, thanks @kojix2)
(collection) Make Channel(T) an Iterator(T) (#16916, thanks @jgaskins)
(crypto) Add support for OpenSSL 4.0 (#16839, thanks @straight-shoota)
(crypto) Support OpenSSL 4.x DLLs on Windows MSVC (#17116, thanks @HertzDevil)
(networking) [experimental] Add Socket#sendfile (and Crystal::EventLoop::Socket#sendfile) (#16665, #17133, thanks @ysbaddaden, @straight-shoota)
(networking) Add HTTP::WebSocket#receive as a synchronous call (#16689, thanks @jgaskins)
(runtime) Add Crystal::EventLoop::FileDescriptor#pread (#17068, thanks @ysbaddaden)
(runtime) Add without_main flag (#17074, thanks @kojix2)
(runtime) OpenBSD: use kqueue event loop by default (#17123, thanks @ysbaddaden)
(serialization) Support nested root properties in JSON::Field (#17016, thanks @tcoatswo)
(serialization) Add URI::Params::Field(ignore:), ignore_serialize, ignore_deserialize (#17029, thanks @trypsynth)
(specs) Allow chaining #should, #should_not expectations (#17020, thanks @straight-shoota)
(system) Expose Path#kind (#16917, thanks @Sija)
(system) Add splat overloads for Process.capture, .run and .new (#16975, thanks @straight-shoota)
(system) Add Process::Status.[] constructor (#17003, thanks @straight-shoota)
(text) Add String#present? (#16930, thanks @Sija)
(text) Add UUID.v6 and .v8 generators (#17010, thanks @trypsynth)

compiler

(cli) Classify compiler exit reasons (#17028, thanks @straight-shoota)
(debugger) Improve proc debug metadata (#16830, thanks @skuznetsov)
(debugger) Emit debug metadata for constants and class vars (#16831, thanks @skuznetsov)
(debugger) Improve LLDB collection formatters (#16832, thanks @skuznetsov)
(parser) Add ASTNode#inspect (#16699, thanks @straight-shoota)
(parser) Parse MacroVar with empty expressions: %var{} (#16772, thanks @straight-shoota)
(semantic) Split branches on when Bar, Baz (#17072, thanks @straight-shoota)

tools

(docs-generator) Improve wording in warning about doc generator without LibXML2 (#16926, thanks @kojix2)

Bugfixes

stdlib

(cli) Fix summary wrapping condition in OptionParser (#16915, thanks @kojix2)
(cli) Avoid Process.exec on Windows and explicitly spawn subprocess (#17049, thanks @straight-shoota)
(collection) Fix Iterator#compact_map with EmptyIterator (#16928, thanks @straight-shoota)
(collection) Fix Iterator#compact_map with non-nilable compactor proc (#16927, thanks @straight-shoota)
(concurrency) Fix swapped atomic orderings in Sync::MU fast paths (#17063, thanks @stevegeek)
(llvm) Fix use line 0 for unknown debug location (#17013, thanks @straight-shoota)
(networking) Fix HTTP::Request.form_params? to recognize Content-Type and charset (#16934, #16971, thanks @swsch, @straight-shoota)
(networking) Fix HTTP::Client to retry for connection recovery only (#16981, thanks @straight-shoota)
(networking) Disable transport read-ahead for Kernel TLS sockets (#17053, thanks @jage)
(runtime) Fiber::ExecutionContext::Monitor compat with old Crystal releases (#17007, thanks @ysbaddaden)
(runtime) EventLoop::IoUring#open musn't set O_NONBLOCK when blocking (#17035, thanks @ysbaddaden)
(runtime) underperforming unlock conditions in Sync::MU (#17070, thanks @ysbaddaden)
(runtime) fdlock#try_close? must release ref after yielding to the block (#17089, thanks @ysbaddaden)
(runtime) Fiber::ExecutionContext.current? (#17092, thanks @ysbaddaden)
(runtime) Refactor Win32 iocp evloop (#17101, thanks @ysbaddaden)
(serialization) memory leak in XML::Node#each_namespace (#17038, thanks @ysbaddaden)
(system) skip Windows registry MIME entries with an invalid Content Type (#17106, thanks @SAY-5)
(text) Fix IO::Encoder#write when operating on long strings (#16797, thanks @jgaskins)

compiler

(cli) Remedy short-flag conflict for crystal spec -p (#17062, thanks @straight-shoota)
(codegen) Fix codegen treating distinct lib type aliases as the same type (#16961, thanks @stakach)
(interpreter) Add interpreter upcast_distinct for Pointer to Pointer (#16962, thanks @stakach)
(interpreter:repl) Fix auto-indentation in the REPL when typing classes. (#16910, thanks @I3oris)
(interpreter:repl) Fix interpreter multidispatch cache collision (#16958, thanks @stakach)
(parser) Fix lexing MacroVar syntax in literal (#16779, thanks @straight-shoota)
(parser) Fix parsing macro var without exps followed by macro expression (#16879, thanks @straight-shoota)
(parser) Fix parse parenthesized expression in block arg assignment (#16894, thanks @straight-shoota)
(parser) Do not merge nested Expression and ExceptionHandler (#16852, thanks @straight-shoota)
(parser) Fix parser silently ignoring &(...), &[...], &{...} in assignment (#16960, thanks @stakach)
(parser) Fix parser allow / and // immediately after self, nil, true, false (#16942, thanks @stakach)
(parser) Fix short block setter call end location (#17039, thanks @Sija)
(semantic) Fix freeze type of variable declared with out (#16870, thanks @straight-shoota)
(semantic) Fix lookup_matches_in_type to reject partial matches (#16867, thanks @straight-shoota)
(semantic) Fix location of double splat named tuple typenode entry locations (#16889, thanks @Blacksmoke16)
(semantic) Fix sizeof, offsetof as generic type argument in inferred ivar type (#16811, thanks @kojix2)
(semantic) Fix macro argument errors for path receiver calls (#16923, thanks @kojix2)
(semantic) Detect uninitialized ancestor ivars through macro_def initializers (#16959, thanks @stakach)
(semantic) Preserve nil_if_read? across while cond filters (#16963, thanks @stakach)
(semantic) Keep wider subclass observer when call owner narrows (#16947) (#16990, thanks @stakach)
(semantic) Symmetric common_descendent for two generic class types (#10831) (#16999, thanks @stakach)

tools

(formatter) Fix format empty then with trailing comment (#16878, thanks @straight-shoota)
(formatter) Fix formatting whitespace in ternary if with trailing comments (#16880, thanks @straight-shoota)
(formatter) Fix formatter on empty string literal continuation (#16817, thanks @straight-shoota)
(formatter) Fix format annotations of splat parameter (#16987, thanks @straight-shoota)
(formatter) Fix formatter strip empty lines in heredoc (#17034, thanks @straight-shoota)

Chores

stdlib

(cli) [deprecation] Deprecate Colorize.on_tty_only! (#16859, thanks @straight-shoota)
(concurrency) [deprecation] Deprecate spawn(same_thread:) (#17097, thanks @ysbaddaden)
(files) [deprecation] Rename parameter to writable in IO::Memory.new (#16858, #16883, thanks @straight-shoota)
(system) [deprecation] Hide platform-specific Process::Status constructor (#16997, thanks @straight-shoota)

Performance

stdlib

(collection) Preallocate correct size for hash in Hash.zip (#17054, thanks @carlhoerberg)

Refactor

stdlib

(cli) Split error helper for compiler CLI into independent methods (#16984, thanks @straight-shoota)
(cli) Refactor compiler code to raise CompilerError instead of abort (#16995, thanks @straight-shoota)
(concurrency) simplify read console (windows) (#17098, thanks @ysbaddaden)
(concurrency) Process#wait on Windows (#17099, thanks @ysbaddaden)
(networking) Refactor bubbling exceptions from user code in HTTP::Client#exec(&) (#16969, thanks @straight-shoota)
(runtime) Internalize IO::Evented into Crystal::EventLoop::Wasi (#17030, thanks @ysbaddaden)
(runtime) Fix: thread safety of the libevent event loop (#17031, thanks @ysbaddaden)
(runtime) Drop unused IO::Evented and Crystal::ThreadLocalValue (#17032, thanks @ysbaddaden)
(runtime) Consolidate #overlapped_connect and #overlapped_accept into EventLoop::IOCP (#17090, thanks @ysbaddaden)
(runtime) OpenBSD now supports EVFILT_USER (#17121, thanks @ysbaddaden)
(system) Refactor Dir::Globber to a struct with instance methods (#16899, thanks @straight-shoota)
(system) Refactor internal Process constructor to receive Crystal::System::Process (#16933, thanks @straight-shoota)
(system) dont parse but mmap ELF, Mach-O, PE files and some DWARF sections (#16939, #17134, thanks @ysbaddaden)

compiler

Replace backticks with Process.capture (#17012, #17122, thanks @straight-shoota, @ysbaddaden)
(codegen) Set optsize and minsize fun attributes for the -Os and -Oz optimization modes (#16983, thanks @ysbaddaden)
(parser) Parse parens in type grammar into Union#parens (#16744, #16908, thanks @straight-shoota)
(parser) Refactor whitespace branch in Lexer#next_macro_token [follow-up #16771] (#16776, thanks @straight-shoota)
(parser) Refactor formatter, remove internal delimited_pair(advance) (#17023, thanks @straight-shoota)

tools

(formatter) [breaking] Standardize parsing of symbol and string array literals (#16748, thanks @straight-shoota)
(formatter) Drop format_binary parameter alternative (#16912, thanks @straight-shoota)

other

Fix violations reported by ameba 1.7 (#17021, thanks @straight-shoota)

Documentation

stdlib

(cli) Add missing_option to OptionParser example (#17112, thanks @LaskaIDK)
(macros) Improve docs for ::delegate (#16854, thanks @straight-shoota)
(text) Document null-termination on String#to_unsafe (#16869, thanks @mvanhorn)
(text) Document String is not inheritable (#17000, thanks @LaskaIDK)

other

Fix typo writable in documentation (#16848, thanks @straight-shoota)
Format asciidoc (#16992, thanks @straight-shoota)
rumdl: Fix MD077: Continuation line over-indented (#17085, thanks @straight-shoota)

Specs

stdlib

(cli) Refactor run_git spec helper to use Process.capture_result? (#17079, thanks @straight-shoota)
(collection) Add specs for Iterator.empty (#17014, thanks @straight-shoota)
(concurrency) Fix: Crystal 1.0.0 is confused by file private types (#17067, thanks @ysbaddaden)
(networking) Extract spec helpers close_connection and client_for for HTTP client specs (#16968, thanks @straight-shoota)
(text) Add specs for range accessor with open ended exclusive range (#16849, thanks @straight-shoota)

compiler

(cli) Add compiler-cli test suite (#17033, thanks @straight-shoota)
(debugger) Fix lldb-check expectations in debug tests for compatibility with modern LLDB (#16860, thanks @straight-shoota)

other

Remove unnecessary not_nil! in spec suite (#16865, thanks @straight-shoota)
Replace not_nil! with should_not(be_nil) in spec suite (#16906, thanks @straight-shoota)

Infrastructure

Changelog for 1.21.0 (#17095, thanks @straight-shoota)
Update previous Crystal release 1.20.0 (#16844, thanks @ysbaddaden)
Update previous Crystal release 1.20.1 (#16901, thanks @straight-shoota)
Merge release/1.19@1.19.2 into master (#16905, thanks @straight-shoota)
Merge release/1.20@1.20.1 into master (#16900, thanks @straight-shoota)
Update devenv.lock (#16819, #16935, #17006, #17075, #17084, thanks @github-actions, @crysbot)
Update changelog script (#16946, thanks @straight-shoota)
Extract CRYSTAL_BOOTSTRAP_VERSION in bin/ci (#16966, thanks @straight-shoota)
Update previous Crystal release 1.20.2 (#16954, thanks @straight-shoota)
Makefile: Split install target into subcomponents (#16980, thanks @straight-shoota)
Update release-update script (#16977, thanks @straight-shoota)
Makefile: Build manpages for install target (#16991, thanks @straight-shoota)
Apply shfmt (#17015, thanks @straight-shoota)
Apply mbake formatter for Makefile (#17024, thanks @straight-shoota)
infra: devenv input for git-hooks follows nixpkgs (#17064, thanks @straight-shoota)
Replace markdownlint with rumdl (#17069, thanks @straight-shoota)
Replace .markdownlint.yaml with rumdl.toml (#17078, thanks @straight-shoota)
(ci) Fix -Devloop=io_uring flag in Linux CI (#16843, thanks @straight-shoota)
(ci) Use PAT from GHA environments for backport job (#16864, thanks @straight-shoota)
(ci) Use AWS credentials from GHA environments for deploy_api_docs job (#16863, thanks @straight-shoota)
(ci) Update GH Actions (#16836, #16944, #17011, #17042, [#17117], thanks @renovate)
(ci) Use Crysbot token in update-devenv workflow to trigger CI (#16938, thanks @straight-shoota)
(ci) Fix tags for nightly docker images (#16973, thanks @straight-shoota)
(ci) Drop separate aarch64 workflow (#16965, thanks @straight-shoota)
(ci) Update crate-ci/typos action to v1.46.2 (#16986, thanks @renovate)
(ci) Update macos-15 runners to macos-26 (#17022, thanks @straight-shoota)
(ci) Upgrade library dependencies for Windows CI (#17025, thanks @straight-shoota)
(ci) Upgrade windows runners to VS 2026 (#17043, thanks @straight-shoota)
(ci) Upgrade nixpkgs 26.05 in Lint workflow (#17066, thanks @straight-shoota)
(ci) Update previous Crystal release 1.20.3 (#17114, thanks @ysbaddaden)

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This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [crystal-lang/crystal](https://github.com/crystal-lang/crystal) | uses-with | minor | `1.20.3` → `1.22.0` | --- > ⚠️ **Warning** > > Some dependencies could not be looked up. Check the warning logs for more information. --- ### Release Notes <details> <summary>crystal-lang/crystal</summary> ### [`v1.22.0`](https://github.com/crystal-lang/crystal/releases/tag/1.22.0) [Compare Source](https://github.com/crystal-lang/crystal/compare/1.21.1...1.22.0) ##### Breaking changes ##### stdlib - *(system)* Drop `Process.fork` ([#17367], thanks [@straight-shoota](https://github.com/straight-shoota)) [#17367]: https://github.com/crystal-lang/crystal/pull/17367 ##### Features ##### lang - Allow constants with type declarations ([#16951], thanks [@stakach](https://github.com/stakach)) - *(macros)* Add `StringLiteral#bytesize` ([#17176], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(macros)* Add `NumberLiteral#chr` ([#17169], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(macros)* Support `CharLiteral` in `RangeLiteral#each` ([#17170], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16951]: https://github.com/crystal-lang/crystal/pull/16951 [#17169]: https://github.com/crystal-lang/crystal/pull/17169 [#17170]: https://github.com/crystal-lang/crystal/pull/17170 [#17176]: https://github.com/crystal-lang/crystal/pull/17176 ##### stdlib - Add warning about minimum supported Crystal version in `prelude` ([#17349], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(crypto)* Enable OpenSSL Kernel TLS support by default ([#17059], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(crypto)* Add `OpenSSL::Cipher#gcm_tag` and `#gcm_tag=` for AEAD ciphers ([#17096], thanks [@paulocoghi](https://github.com/paulocoghi)) - *(files)* Add `IO::Memory#writable?` ([#17167], thanks [@spuun](https://github.com/spuun)) - *(llvm)* Support LLVM 23.1 and 24.0 ([#17432], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(macros)* Add all enum types to `Enum`'s list of subclasses ([#17425], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(networking)* Add `HTTP::Context#remote_address`, `#local_address` ([#17196], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Validate method, version, and host in `HTTP::WebSocketHandler` ([#17235], thanks [@hahwul](https://github.com/hahwul)) - *(networking)* `HTTP::Client::Request` support `Content-Encoding: x-gzip` ([#17263], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Add `HTTP::Headers#merge` ([#17326], thanks [@jgaskins](https://github.com/jgaskins)) - *(networking)* Serialize `IO::Memory` in HTTP body with `Content-Length` header ([#17388], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(runtime)* Add `GC.syscall(&)` ([#17150], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Add `Thread#wait` and `Thread#wake` methods ([#17226], [#17243], [#17247], [#17380], [#17419], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Add `Crystal::LRUCache` ([#17284], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Add `GC.max_heap_size=` ([#17346], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(runtime)* Use epoll event loop on Solaris targets ([#17370], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* DWARF: build function names table for fast binary search ([#17410], [#17433], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Enable kqueue event-loop by default on all BSD targets ([#17421], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* DWARF: build index of `.debug_line` section ([#17455], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Support `Bytes` in `Crystal::System.printf(%s)` ([#17463], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Support `DW_FORM_addrx<n>` and `DW_FORM_strx<n>` from DWARF 5 ([#17445], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Add `Fiber::ExecutionContext::Parallel#scale_up` to manually scale parallel contexts ([#17438], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Re-enable pretty backtraces in UNIX segfault handler ([#17456], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(serialization)* Add `XML::Node#line_number` ([#17179], thanks [@n-rodriguez](https://github.com/n-rodriguez)) - *(system)* Include exit code in `Process::Status#description` ([#17087], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(system)* Add `File::Info#inspect` ([#17375], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(system)* Add `File.exists?(follow_symlinks: true)` ([#17307], [#17600], thanks [@straight-shoota](https://github.com/straight-shoota), [@ysbaddaden](https://github.com/ysbaddaden)) - *(system)* `File::Info.readable?`, `.writable?`, `.executable?` `follow_symlinks: false` ([#17391], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(text)* Add `Char::Reader.new(Bytes)` ([#17428], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(time)* Add `Time::Span#to_nanoseconds` etc. ([#17190], thanks [@straight-shoota](https://github.com/straight-shoota)) [#17059]: https://github.com/crystal-lang/crystal/pull/17059 [#17087]: https://github.com/crystal-lang/crystal/pull/17087 [#17096]: https://github.com/crystal-lang/crystal/pull/17096 [#17150]: https://github.com/crystal-lang/crystal/pull/17150 [#17167]: https://github.com/crystal-lang/crystal/pull/17167 [#17179]: https://github.com/crystal-lang/crystal/pull/17179 [#17190]: https://github.com/crystal-lang/crystal/pull/17190 [#17196]: https://github.com/crystal-lang/crystal/pull/17196 [#17226]: https://github.com/crystal-lang/crystal/pull/17226 [#17235]: https://github.com/crystal-lang/crystal/pull/17235 [#17243]: https://github.com/crystal-lang/crystal/pull/17243 [#17247]: https://github.com/crystal-lang/crystal/pull/17247 [#17263]: https://github.com/crystal-lang/crystal/pull/17263 [#17284]: https://github.com/crystal-lang/crystal/pull/17284 [#17307]: https://github.com/crystal-lang/crystal/pull/17307 [#17326]: https://github.com/crystal-lang/crystal/pull/17326 [#17346]: https://github.com/crystal-lang/crystal/pull/17346 [#17349]: https://github.com/crystal-lang/crystal/pull/17349 [#17370]: https://github.com/crystal-lang/crystal/pull/17370 [#17375]: https://github.com/crystal-lang/crystal/pull/17375 [#17380]: https://github.com/crystal-lang/crystal/pull/17380 [#17388]: https://github.com/crystal-lang/crystal/pull/17388 [#17391]: https://github.com/crystal-lang/crystal/pull/17391 [#17410]: https://github.com/crystal-lang/crystal/pull/17410 [#17419]: https://github.com/crystal-lang/crystal/pull/17419 [#17421]: https://github.com/crystal-lang/crystal/pull/17421 [#17425]: https://github.com/crystal-lang/crystal/pull/17425 [#17428]: https://github.com/crystal-lang/crystal/pull/17428 [#17432]: https://github.com/crystal-lang/crystal/pull/17432 [#17433]: https://github.com/crystal-lang/crystal/pull/17433 [#17438]: https://github.com/crystal-lang/crystal/pull/17438 [#17445]: https://github.com/crystal-lang/crystal/pull/17445 [#17455]: https://github.com/crystal-lang/crystal/pull/17455 [#17456]: https://github.com/crystal-lang/crystal/pull/17456 [#17463]: https://github.com/crystal-lang/crystal/pull/17463 [#17600]: https://github.com/crystal-lang/crystal/pull/17600 ##### compiler - *(cli)* Improve compiler error when writing cross-compile output fails ([#17457], thanks [@ralsina](https://github.com/ralsina)) - *(parser)* Fix parsing suffix form of `ensure` after an `ExceptionHandler` ([#17426], [#17460], thanks [@Sija](https://github.com/Sija)) - *(semantic)* Add `Crystal::ALL_FLAGS` and `USER_FLAGS` ([#17392], [#17621], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(semantic)* Fix `method_missing` call location metadata ([#17465], thanks [@nobodywasishere](https://github.com/nobodywasishere)) [#17392]: https://github.com/crystal-lang/crystal/pull/17392 [#17426]: https://github.com/crystal-lang/crystal/pull/17426 [#17457]: https://github.com/crystal-lang/crystal/pull/17457 [#17460]: https://github.com/crystal-lang/crystal/pull/17460 [#17465]: https://github.com/crystal-lang/crystal/pull/17465 [#17621]: https://github.com/crystal-lang/crystal/pull/17621 ##### tools - *(docs-generator)* Update markd 0.6.0 ([#17269], thanks [@straight-shoota](https://github.com/straight-shoota)) [#17269]: https://github.com/crystal-lang/crystal/pull/17269 ##### Bugfixes ##### stdlib - *(cli)* Fix bundled short options not consuming a value from the next argument ([#17473], thanks [@alter](https://github.com/alter)) - *(collection)* Fix invalid access in `BitArray#[](Int, Int)` ([#17205], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(collection)* Fix `Range#step` raise on zero step size ([#17225], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(collection)* Fix `Range#size` overflow on max integer value ([#17266], thanks [@mvanhorn](https://github.com/mvanhorn)) - *(collection)* Fix each_repeated_combination iterator raising on an empty collection ([#17275], thanks [@SAY-5](https://github.com/SAY-5)) - *(concurrency)* `Sync::RWLock#try_write_lock?` skips type protection ([#17472], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(files)* invalid resize when writing `IO::Memory` to itself ([#17241], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(llvm)* Add pointer indirection for `__crystal_type_id_to_class_name_map` ([#17502], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(llvm)* Fix `LLVM#gep` and `#inbounds_gep` signatures with multiple indices ([#17538], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(networking)* Reject unrecognized HTTP `Transfer-Encoding` header ([#17140], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Reject `HTTP::Client::Response` with invalid `Content-Encoding` ([#17262], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix `HTTP::Request.from_io` parsing empty header name ([#17254], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* **\[breaking]** Fix `HTTP::Request#body=` return value ([#17257], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix `Content-Encoding: deflate` ([#17261], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix validation in `Request#hostname` ([#17258], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix `HTTP::Request#form_params?` to ignore invalid content-type ([#17256], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix `HTTP.parse_headers_and_body` to not raise with `without_zlib` ([#17272], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Validate `HTTP::Request#method` ([#17255], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Validate `HTTP::Request#version` ([#17304], [#17374], thanks [@straight-shoota](https://github.com/straight-shoota), [@Sija](https://github.com/Sija)) - *(networking)* Fix `HTTP::Request#content_length=` return value ([#17273], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Validate `HTTP::Request#resource` ([#17310], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix `Socket#sendfile` when `count > file.size` ([#17286], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix `File#sendfile` should not move `#pos` ([#17293], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix IPv6 address passed to `OpenSSL::SSL::Socket::Client.new` for OpenSSL 4.0 ([#17321], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(networking)* Fix `HTTP::VALID_TOKEN_CHAR_MAP` for Crystal < 1.16 ([#17333], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix validate `HTTP::Headers` name ([#17317], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Close `HTTP::Client` on `IO::Error` during request ([#17318], thanks [@jgaskins](https://github.com/jgaskins)) - *(networking)* Fix reject invalid HTTP trailer ([#17337], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Validate `HTTP::Request#content_length` and type as `Int64` ([#17312], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix keep `HTTP::Request#content_length` in sync with `#body` ([#17389], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix `WebSocket` buffer corruption with interleaved control frame ([#17553], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix `WebSocket::Protocol#receive` to validate masked/unmasked state ([#17562], [#17603], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix `WebSocket` reject mixed opcode continuation ([#17552], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(numeric)* Fix `BigRational#<=>` with an infinite `Float` ([#17223], thanks [@youdie006](https://github.com/youdie006)) - *(numeric)* Fix `Int#humanize_bytes` to use `KiB` in IEC format ([#17234], thanks [@kojix2](https://github.com/kojix2)) - *(runtime)* `ThreadPool#main_thread_loop` ([#17194], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* free dead fiber stack when there's no stack pool ([#17229], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* support bare threads in crystal/once ([#17228], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* io_uring event loop hangs on sendfile ([#17299], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* correctly iterate ELF file sections ([#17327], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* backtraces on musl-libc when linking with `-static-pie` ([#17316], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* abort on out-of-memory instead of segfaulting ([#17111], [#17345], thanks [@carlhoerberg](https://github.com/carlhoerberg), [@straight-shoota](https://github.com/straight-shoota)) - *(runtime)* enqueue thread once into thread pool ([#17350], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* save stdio closed state on program start ([#17378], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* rewrite thread pool logic to avoid race conditions ([#17400], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* don't propagate trace environment variables to sub-processes ([#17402], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* tracing 128 bit integers ([#17403], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* kqueue event loop on NetBSD ([#17420], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* **\[regression]** Fix COFF symbols table being empty on MinGW-w64 ([#17442], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(runtime)* Fix running on CPUs with `cpu_count > UInt8::MAX` ([#17437], thanks [@willhbr](https://github.com/willhbr)) - *(runtime)* parallel schedulers may deadlock each other ([#17491], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* crystal/once must cleanup when an exception is raised ([#17546], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* auto-scaling of multiple execution contexts ([#17514], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Distinguish kqueue registration errors from kevent errors ([#17599], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(serialization)* Fix CSV error line numbers with CRLF input ([#17381], thanks [@cuishuang](https://github.com/cuishuang)) - *(serialization)* Fix CSV builder to escape CR characters ([#17548], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(system)* **\[regression]** Fix missing NULL terminator for `execve` vargs ([#17184], thanks [@sdogruyol](https://github.com/sdogruyol)) - *(system)* Fix `Process.new` to close pipes on error ([#17297], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(system)* **\[breaking]** Add `IO::FileDescriptor#exit_on_broken_pipe` ([#17335], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(system)* Skip inaccessible candidates for `Process.find_executable` ([#17409], thanks [@mvanhorn](https://github.com/mvanhorn)) - *(system)* Fix `FileUtils.mv(Enumerable)` swallowing errors ([#17407], thanks [@LaskaIDK](https://github.com/LaskaIDK)) - *(system)* Ignore all `File::Error` in `Process.find_executable` ([#17542], thanks [@jochenseeber](https://github.com/jochenseeber)) - *(text)* Fix `String#gsub` when `Regex` pattern matches empty string and advances ([#17204], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(text)* Fix `URI#resolve` for path without `/` ([#17213], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(text)* Handle consecutive whitespace in `String#titleize` ([#17206], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(text)* Fix `String#each_line(remove_empty: true)` with many empty lines ([#17242], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(text)* Fix `Char::Reader#pos=` to raise on negative position ([#17382], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(text)* Fix `Char::Reader#current_char_width` to be zero at end ([#17405], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(text)* Fix `String#compare(case_insensitive: true)` to order invalid byte sequences ([#17314], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(text)* Fix `Char::Reader.new` to raise on an invalid position ([#17416], thanks [@youdie006](https://github.com/youdie006)) - *(text)* Fix `PCRE2#jit_compile` to accept nomemory error for implicit fallback ([#17559], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(time)* Fix local timezone location name for Android ([#17248], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(time)* Fix `Time::Location.load?` for Android ([#17249], thanks [@HertzDevil](https://github.com/HertzDevil)) [#17111]: https://github.com/crystal-lang/crystal/pull/17111 [#17140]: https://github.com/crystal-lang/crystal/pull/17140 [#17184]: https://github.com/crystal-lang/crystal/pull/17184 [#17194]: https://github.com/crystal-lang/crystal/pull/17194 [#17204]: https://github.com/crystal-lang/crystal/pull/17204 [#17205]: https://github.com/crystal-lang/crystal/pull/17205 [#17206]: https://github.com/crystal-lang/crystal/pull/17206 [#17213]: https://github.com/crystal-lang/crystal/pull/17213 [#17223]: https://github.com/crystal-lang/crystal/pull/17223 [#17225]: https://github.com/crystal-lang/crystal/pull/17225 [#17228]: https://github.com/crystal-lang/crystal/pull/17228 [#17229]: https://github.com/crystal-lang/crystal/pull/17229 [#17234]: https://github.com/crystal-lang/crystal/pull/17234 [#17241]: https://github.com/crystal-lang/crystal/pull/17241 [#17242]: https://github.com/crystal-lang/crystal/pull/17242 [#17248]: https://github.com/crystal-lang/crystal/pull/17248 [#17249]: https://github.com/crystal-lang/crystal/pull/17249 [#17254]: https://github.com/crystal-lang/crystal/pull/17254 [#17255]: https://github.com/crystal-lang/crystal/pull/17255 [#17256]: https://github.com/crystal-lang/crystal/pull/17256 [#17257]: https://github.com/crystal-lang/crystal/pull/17257 [#17258]: https://github.com/crystal-lang/crystal/pull/17258 [#17261]: https://github.com/crystal-lang/crystal/pull/17261 [#17262]: https://github.com/crystal-lang/crystal/pull/17262 [#17266]: https://github.com/crystal-lang/crystal/pull/17266 [#17272]: https://github.com/crystal-lang/crystal/pull/17272 [#17273]: https://github.com/crystal-lang/crystal/pull/17273 [#17275]: https://github.com/crystal-lang/crystal/pull/17275 [#17286]: https://github.com/crystal-lang/crystal/pull/17286 [#17293]: https://github.com/crystal-lang/crystal/pull/17293 [#17297]: https://github.com/crystal-lang/crystal/pull/17297 [#17299]: https://github.com/crystal-lang/crystal/pull/17299 [#17304]: https://github.com/crystal-lang/crystal/pull/17304 [#17310]: https://github.com/crystal-lang/crystal/pull/17310 [#17312]: https://github.com/crystal-lang/crystal/pull/17312 [#17314]: https://github.com/crystal-lang/crystal/pull/17314 [#17316]: https://github.com/crystal-lang/crystal/pull/17316 [#17317]: https://github.com/crystal-lang/crystal/pull/17317 [#17318]: https://github.com/crystal-lang/crystal/pull/17318 [#17321]: https://github.com/crystal-lang/crystal/pull/17321 [#17327]: https://github.com/crystal-lang/crystal/pull/17327 [#17333]: https://github.com/crystal-lang/crystal/pull/17333 [#17335]: https://github.com/crystal-lang/crystal/pull/17335 [#17337]: https://github.com/crystal-lang/crystal/pull/17337 [#17345]: https://github.com/crystal-lang/crystal/pull/17345 [#17350]: https://github.com/crystal-lang/crystal/pull/17350 [#17374]: https://github.com/crystal-lang/crystal/pull/17374 [#17378]: https://github.com/crystal-lang/crystal/pull/17378 [#17381]: https://github.com/crystal-lang/crystal/pull/17381 [#17382]: https://github.com/crystal-lang/crystal/pull/17382 [#17389]: https://github.com/crystal-lang/crystal/pull/17389 [#17400]: https://github.com/crystal-lang/crystal/pull/17400 [#17402]: https://github.com/crystal-lang/crystal/pull/17402 [#17403]: https://github.com/crystal-lang/crystal/pull/17403 [#17405]: https://github.com/crystal-lang/crystal/pull/17405 [#17407]: https://github.com/crystal-lang/crystal/pull/17407 [#17409]: https://github.com/crystal-lang/crystal/pull/17409 [#17416]: https://github.com/crystal-lang/crystal/pull/17416 [#17420]: https://github.com/crystal-lang/crystal/pull/17420 [#17437]: https://github.com/crystal-lang/crystal/pull/17437 [#17442]: https://github.com/crystal-lang/crystal/pull/17442 [#17472]: https://github.com/crystal-lang/crystal/pull/17472 [#17473]: https://github.com/crystal-lang/crystal/pull/17473 [#17491]: https://github.com/crystal-lang/crystal/pull/17491 [#17502]: https://github.com/crystal-lang/crystal/pull/17502 [#17514]: https://github.com/crystal-lang/crystal/pull/17514 [#17538]: https://github.com/crystal-lang/crystal/pull/17538 [#17542]: https://github.com/crystal-lang/crystal/pull/17542 [#17546]: https://github.com/crystal-lang/crystal/pull/17546 [#17548]: https://github.com/crystal-lang/crystal/pull/17548 [#17552]: https://github.com/crystal-lang/crystal/pull/17552 [#17553]: https://github.com/crystal-lang/crystal/pull/17553 [#17559]: https://github.com/crystal-lang/crystal/pull/17559 [#17562]: https://github.com/crystal-lang/crystal/pull/17562 [#17599]: https://github.com/crystal-lang/crystal/pull/17599 [#17603]: https://github.com/crystal-lang/crystal/pull/17603 ##### compiler - Fix vswhere ignoring ARM64-only MSVC installations ([#17395], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(codegen)* Codegen doesn't materialize an unused yield block value in debug builds, pt. 2 ([#17130], thanks [@nobodywasishere](https://github.com/nobodywasishere)) - *(codegen)* Unify LLVM types used for `ReferenceStorage` ([#17397], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(codegen)* Do not access owner type in dispatch if it is not passed at runtime ([#17424], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(codegen)* cross-compile crashes when combined with emit llvm-bc or obj ([#17510], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(codegen)* Fix memory leak in mixed union assignments ([#17518], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(codegen)* Fix SysV ABI classification of word containing `Float32` followed by integer ([#17572], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(codegen)* Respect ABI info when explicitly returning inside top-level funs ([#17616], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(debugger)* Fix lldb-dap crash on Windows when loading Crystal formatters ([#17448], thanks [@magynhard](https://github.com/magynhard)) - *(interpreter)* Fix interpreter dispatch on a virtual struct narrowed from a union ([#17450], thanks [@jochenseeber](https://github.com/jochenseeber)) - *(parser)* Fix parse `OP_SLASH` after block ([#17159], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(parser)* Fix suffix `ExceptionHandler#location` in an assignment ([#17365], thanks [@Sija](https://github.com/Sija)) - *(parser)* Fix global calls shadowed by local variables ([#17558], thanks [@grepsedawk](https://github.com/grepsedawk)) - *(semantic)* Fix instance variable initializer using a class variable assignment ([#17148], thanks [@nobodywasishere](https://github.com/nobodywasishere)) - *(semantic)* Fix bug allowing `self` in private top-level method ([#17149], thanks [@nobodywasishere](https://github.com/nobodywasishere)) - *(semantic)* Fix dynamic class declaration macro error ([#17274], thanks [@nobodywasishere](https://github.com/nobodywasishere)) - *(semantic)* Backfill included type to existing instantiations ([#17094], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(semantic)* Fix ICE when module with ivar is included in a type that can't have them ([#17386], thanks [@bcardiff](https://github.com/bcardiff)) - *(semantic)* Disallow `instance_sizeof` and `instance_alignof` on `Void` or `NoReturn` ([#17453], thanks [@HertzDevil](https://github.com/HertzDevil)) [#17094]: https://github.com/crystal-lang/crystal/pull/17094 [#17130]: https://github.com/crystal-lang/crystal/pull/17130 [#17148]: https://github.com/crystal-lang/crystal/pull/17148 [#17149]: https://github.com/crystal-lang/crystal/pull/17149 [#17159]: https://github.com/crystal-lang/crystal/pull/17159 [#17274]: https://github.com/crystal-lang/crystal/pull/17274 [#17365]: https://github.com/crystal-lang/crystal/pull/17365 [#17386]: https://github.com/crystal-lang/crystal/pull/17386 [#17395]: https://github.com/crystal-lang/crystal/pull/17395 [#17397]: https://github.com/crystal-lang/crystal/pull/17397 [#17424]: https://github.com/crystal-lang/crystal/pull/17424 [#17448]: https://github.com/crystal-lang/crystal/pull/17448 [#17450]: https://github.com/crystal-lang/crystal/pull/17450 [#17453]: https://github.com/crystal-lang/crystal/pull/17453 [#17510]: https://github.com/crystal-lang/crystal/pull/17510 [#17518]: https://github.com/crystal-lang/crystal/pull/17518 [#17558]: https://github.com/crystal-lang/crystal/pull/17558 [#17572]: https://github.com/crystal-lang/crystal/pull/17572 [#17616]: https://github.com/crystal-lang/crystal/pull/17616 ##### tools - *(formatter)* Fix formatter for setter assignment with parenthesized values ([#17083], thanks [@mamantoha](https://github.com/mamantoha)) - *(formatter)* formatter unescapes fresh variables ([#17517], thanks [@ysbaddaden](https://github.com/ysbaddaden)) [#17083]: https://github.com/crystal-lang/crystal/pull/17083 [#17517]: https://github.com/crystal-lang/crystal/pull/17517 ##### Chores ##### lang - **\[deprecation]** Deprecate uppercase instance and class variables ([#17160], thanks [@nobodywasishere](https://github.com/nobodywasishere)) [#17160]: https://github.com/crystal-lang/crystal/pull/17160 ##### stdlib - *(llvm)* **\[deprecation]** Deprecate `LLVM::Type#size` and `#alignment` ([#17494], [#17533], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(networking)* **\[deprecation]** Deprecate `HTTP::Request#local_address` and `#remote_address` ([#17260], thanks [@straight-shoota](https://github.com/straight-shoota)) [#17260]: https://github.com/crystal-lang/crystal/pull/17260 [#17494]: https://github.com/crystal-lang/crystal/pull/17494 [#17533]: https://github.com/crystal-lang/crystal/pull/17533 ##### compiler - *(codegen)* Drop `Compiler#fork_codegen` ([#16417], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16417]: https://github.com/crystal-lang/crystal/pull/16417 ##### other - Fix deprecation warnings in samples ([#17342], thanks [@HertzDevil](https://github.com/HertzDevil)) [#17342]: https://github.com/crystal-lang/crystal/pull/17342 ##### Performance ##### stdlib - *(networking)* Optimize `HTTP.header_name` ([#14503], thanks [@jgaskins](https://github.com/jgaskins)) - *(runtime)* Keep decoded backtrace lines into LRU cache ([#17285], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(text)* Optimize `String#byte_index(Int)` ([#17303], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(text)* Optimize `String#gsub(String)` and `#scan(String)` ([#17305], thanks [@HertzDevil](https://github.com/HertzDevil)) [#14503]: https://github.com/crystal-lang/crystal/pull/14503 [#17285]: https://github.com/crystal-lang/crystal/pull/17285 [#17303]: https://github.com/crystal-lang/crystal/pull/17303 [#17305]: https://github.com/crystal-lang/crystal/pull/17305 ##### Refactor ##### stdlib - *(collection)* Optimize buffer size in `Enum.parse?` with `StringLiteral#bytesize` ([#17193], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Refactor `Socket::IPAddress` interface index conversion ([#17250], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(networking)* Refactor `RequestProcessor#process` to receive a single IO ([#17461], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(numeric)* Use unchecked arithmetic in compiler-rt ports ([#17180], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(numeric)* Use native `UInt128` in Dragonbox ([#16262], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(numeric)* Format `Int` `MIN`and `MAX` constants as hex numbers ([#17352], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(numeric)* Use 128-bit literals ([#5545], thanks [@Sija](https://github.com/Sija)) - *(runtime)* Execution contexts directly enqueue fibers during event loop runs ([#17158], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Add `Runnables#lazy_grab?` to skip the mutex on quick dequeue ([#17151], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Refactor file lock ([#17105], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Refactor `Exception::CallStack.decode_backtrace_frame` ([#17282], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* DWARF: scan sections instead of building large tables ([#17283], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(text)* Refactor `Char::Reader#next_char` and ivar initialization ([#17383], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(time)* Change `Time.zero` to create new instance instead of returning `ZERO` ([#17216], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(time)* Replace `Time::Span::ZERO` with `.zero` ([#17217], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(time)* Use `Time::Span#to_seconds` etc. ([#17259], thanks [@straight-shoota](https://github.com/straight-shoota)) [#5545]: https://github.com/crystal-lang/crystal/pull/5545 [#16262]: https://github.com/crystal-lang/crystal/pull/16262 [#17105]: https://github.com/crystal-lang/crystal/pull/17105 [#17151]: https://github.com/crystal-lang/crystal/pull/17151 [#17158]: https://github.com/crystal-lang/crystal/pull/17158 [#17180]: https://github.com/crystal-lang/crystal/pull/17180 [#17193]: https://github.com/crystal-lang/crystal/pull/17193 [#17216]: https://github.com/crystal-lang/crystal/pull/17216 [#17217]: https://github.com/crystal-lang/crystal/pull/17217 [#17250]: https://github.com/crystal-lang/crystal/pull/17250 [#17259]: https://github.com/crystal-lang/crystal/pull/17259 [#17282]: https://github.com/crystal-lang/crystal/pull/17282 [#17283]: https://github.com/crystal-lang/crystal/pull/17283 [#17352]: https://github.com/crystal-lang/crystal/pull/17352 [#17383]: https://github.com/crystal-lang/crystal/pull/17383 [#17461]: https://github.com/crystal-lang/crystal/pull/17461 ##### compiler - Refactor `Program#define_crystal_constants` ([#17268], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(codegen)* Remove `Crystal::LLVMBuilderHelper#llvm_size` and friends ([#17452], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(semantic)* Refactor `RangeLiteral#each` ([#17195], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(semantic)* Refactor `#interpret_to_range` ([#17227], thanks [@straight-shoota](https://github.com/straight-shoota)) [#17195]: https://github.com/crystal-lang/crystal/pull/17195 [#17227]: https://github.com/crystal-lang/crystal/pull/17227 [#17268]: https://github.com/crystal-lang/crystal/pull/17268 [#17452]: https://github.com/crystal-lang/crystal/pull/17452 ##### other - Remove unnecessary requires ([#17306], thanks [@straight-shoota](https://github.com/straight-shoota)) - Do not use relative requires for the standard library ([#17320], thanks [@HertzDevil](https://github.com/HertzDevil)) [#17306]: https://github.com/crystal-lang/crystal/pull/17306 [#17320]: https://github.com/crystal-lang/crystal/pull/17320 ##### Documentation ##### stdlib - *(collection)* Fix doc example for `Hash#put` ([#17459], thanks [@spuun](https://github.com/spuun)) - *(concurrency)* Clarify docs for `Channel` buffered channel close and drain semantics ([#17423], thanks [@renich](https://github.com/renich)) - *(numeric)* Fix typo in doc comment for `Int` ([#17238], thanks [@swsch](https://github.com/swsch)) - *(runtime)* Undocument internal `GC` methods ([#17451], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(serialization)* Mention `#to_pretty_json` in `JSON` documentation ([#17131], thanks [@LaskaIDK](https://github.com/LaskaIDK)) - *(specs)* Fix summary line of `Spec::Expectations#be` docs ([#17556], thanks [@SatvikMishra08](https://github.com/SatvikMishra08)) - *(system)* Document error behaviour for `Dir.mkdir` and `.mkdir_p` ([#17240], thanks [@LaskaIDK](https://github.com/LaskaIDK)) [#17131]: https://github.com/crystal-lang/crystal/pull/17131 [#17238]: https://github.com/crystal-lang/crystal/pull/17238 [#17240]: https://github.com/crystal-lang/crystal/pull/17240 [#17423]: https://github.com/crystal-lang/crystal/pull/17423 [#17451]: https://github.com/crystal-lang/crystal/pull/17451 [#17459]: https://github.com/crystal-lang/crystal/pull/17459 [#17556]: https://github.com/crystal-lang/crystal/pull/17556 ##### compiler - *(cli)* Fix short option order in docs help ([#17129], thanks [@kojix2](https://github.com/kojix2)) [#17129]: https://github.com/crystal-lang/crystal/pull/17129 ##### other - Fix typos in doc comments ([#17244], thanks [@swsch](https://github.com/swsch)) [#17244]: https://github.com/crystal-lang/crystal/pull/17244 ##### Specs ##### stdlib - *(networking)* Reorganize `HTTP::Request` spec ([#17166], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Add more specs for `HTTP::Request` ([#17218], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Assert return value of `Socket#sendfile` ([#17292], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix: link-local zone interface fails with ENXIO on Solaris targets ([#17371], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(networking)* Fix `getaddrinfo` with `AF_UNSPEC` failing with `EAI_ADDRFAMILY` on FreeBSD ([#17358], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(networking)* Fix: loopback interface may not be the first interface ([#17359], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(networking)* Fix: disable dual stack specs on FreeBSD and DragonFly ([#17411], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(networking)* Add spec for explicit decompressing HTTP request body \[follow-up [#17476](https://github.com/crystal-lang/crystal/issues/17476)] ([#17531], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(numeric)* Add specs for `Big*` types compaing against float infinity ([#17224], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(runtime)* Relax threshold for `sleep` spec with libevent ([#17232], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(system)* Add `process-utils` for testing process execution ([#17047], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(system)* Always ignore `%PROCESSOR_ARCHITECTURE%` when running `Process` specs on MSVC ([#17362], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(system)* Add spec for `FileUtils.ln_sf` replacing a dangling symlink ([#17289], thanks [@SAY-5](https://github.com/SAY-5)) - *(text)* Improve specs for `Char::Reader` ([#17354], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(text)* Add regression spec for multibyte `String#split` separator ([#17338], thanks [@wangyusheng1985](https://github.com/wangyusheng1985)) [#17047]: https://github.com/crystal-lang/crystal/pull/17047 [#17166]: https://github.com/crystal-lang/crystal/pull/17166 [#17218]: https://github.com/crystal-lang/crystal/pull/17218 [#17224]: https://github.com/crystal-lang/crystal/pull/17224 [#17232]: https://github.com/crystal-lang/crystal/pull/17232 [#17289]: https://github.com/crystal-lang/crystal/pull/17289 [#17292]: https://github.com/crystal-lang/crystal/pull/17292 [#17338]: https://github.com/crystal-lang/crystal/pull/17338 [#17354]: https://github.com/crystal-lang/crystal/pull/17354 [#17358]: https://github.com/crystal-lang/crystal/pull/17358 [#17359]: https://github.com/crystal-lang/crystal/pull/17359 [#17362]: https://github.com/crystal-lang/crystal/pull/17362 [#17371]: https://github.com/crystal-lang/crystal/pull/17371 [#17411]: https://github.com/crystal-lang/crystal/pull/17411 [#17531]: https://github.com/crystal-lang/crystal/pull/17531 ##### compiler - Refactor `new_program` spec helper to concat program flags ([#17356], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(parser)* Remove obsolete `FIXME`s for array literal parsing ([#17347], thanks [@straight-shoota](https://github.com/straight-shoota)) [#17347]: https://github.com/crystal-lang/crystal/pull/17347 [#17356]: https://github.com/crystal-lang/crystal/pull/17356 ##### Infrastructure - Update previous Crystal release 1.21.0 ([#17137], thanks [@straight-shoota](https://github.com/straight-shoota)) - Makefile: Add `build` and `manpages` targets ([#17142], thanks [@straight-shoota](https://github.com/straight-shoota)) - Makefile: Remove `all` target from help (alias for `crystal`) ([#17157], thanks [@straight-shoota](https://github.com/straight-shoota)) - Update `devenv.lock` ([#17147], [#17210], [#17245], [#17253], [#17290], [#17330], [#17379], [#17415], [#17181], [#17143], thanks [@crysbot](https://github.com/crysbot)) - Enable FIXME rules in `rumdl.toml` configuration ([#17171], thanks [@straight-shoota](https://github.com/straight-shoota)) - Update distribution-scripts ([#17178], thanks [@straight-shoota](https://github.com/straight-shoota)) - Update `crystal` version in `shard.yml` ([#17351], thanks [@straight-shoota](https://github.com/straight-shoota)) - `bin/crystal`: Avoid symlinks in `CRYSTAL_PATH` ([#17355], thanks [@straight-shoota](https://github.com/straight-shoota)) - Fix `update-changelog.sh` for patch releases ([#17479], thanks [@straight-shoota](https://github.com/straight-shoota)) - Merge `release/1.21`@`1.21.1` into `master` ([#17526], thanks [@straight-shoota](https://github.com/straight-shoota)) - devenv: Remove actionlint because it's broken ([#17527], thanks [@straight-shoota](https://github.com/straight-shoota)) - renovate: Add custom config for updating shards repo checkout (\[[#17547](https://github.com/crystal-lang/crystal/issues/17547)], thanks [@straight-shoota](https://github.com/straight-shoota)) - Support ARM64 for the MSVC-based toolchain's GUI installer ([#17398], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(ci)* Fix Inno Setup download URL ([#17135], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Update GH Actions ([#17185], [#17336], [#17427], [#17458], [#17146], [#17512], thanks [@renovate](https://github.com/renovate)) - *(ci)* Update cachix/install-nix-action action to v31.11.1 ([#17252], thanks [@renovate](https://github.com/renovate)) - *(ci)* Upgrade runner to `windows-11-vs2026-arm` ([#17267], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Limit `forward-compatibility` to last 8 releases ([#17332], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Fix allow unsafe PR checkout in `backport` workflow ([#17340], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Switch `uses:` in GHA workflows to self-repository syntax ([#17513], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* run std specs on FreeBSD 14 ([#17361], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(ci)* Run smoke tests on changes that affect codegen ([#17545], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Use newer GitHub Action to set up MSVC developer command prompt ([#17396], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(ci)* Update MSVC CI library versions ([#17301], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(ci)* Use explicit development branch version number for LLVM CI ([#17497], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(ci)* Drop `macos-14` runner on GitHub CI ([#17532], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(ci)* Bootstrap ARM64 MSVC-based Crystal compiler ([#17154], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(ci)* Use clang-cl to build OpenSSL for ARM64 MSVC CI ([#17251], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(ci)* Build stage-2 compiler on ARM64 MSVC CI ([#17363], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(ci)* Use Cygwin to build libffi for MSVC CI ([#17163], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(ci)* Split MSVC CI third-party libraries onto own workflow ([#17287], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(ci)* Set up NASM manually on MSVC CI ([#17429], thanks [@HertzDevil](https://github.com/HertzDevil)) [#17135]: https://github.com/crystal-lang/crystal/pull/17135 [#17137]: https://github.com/crystal-lang/crystal/pull/17137 [#17142]: https://github.com/crystal-lang/crystal/pull/17142 [#17143]: https://github.com/crystal-lang/crystal/pull/17143 [#17146]: https://github.com/crystal-lang/crystal/pull/17146 [#17147]: https://github.com/crystal-lang/crystal/pull/17147 [#17154]: https://github.com/crystal-lang/crystal/pull/17154 [#17157]: https://github.com/crystal-lang/crystal/pull/17157 [#17163]: https://github.com/crystal-lang/crystal/pull/17163 [#17171]: https://github.com/crystal-lang/crystal/pull/17171 [#17178]: https://github.com/crystal-lang/crystal/pull/17178 [#17181]: https://github.com/crystal-lang/crystal/pull/17181 [#17185]: https://github.com/crystal-lang/crystal/pull/17185 [#17210]: https://github.com/crystal-lang/crystal/pull/17210 [#17245]: https://github.com/crystal-lang/crystal/pull/17245 [#17251]: https://github.com/crystal-lang/crystal/pull/17251 [#17252]: https://github.com/crystal-lang/crystal/pull/17252 [#17253]: https://github.com/crystal-lang/crystal/pull/17253 [#17267]: https://github.com/crystal-lang/crystal/pull/17267 [#17287]: https://github.com/crystal-lang/crystal/pull/17287 [#17290]: https://github.com/crystal-lang/crystal/pull/17290 [#17301]: https://github.com/crystal-lang/crystal/pull/17301 [#17330]: https://github.com/crystal-lang/crystal/pull/17330 [#17332]: https://github.com/crystal-lang/crystal/pull/17332 [#17336]: https://github.com/crystal-lang/crystal/pull/17336 [#17340]: https://github.com/crystal-lang/crystal/pull/17340 [#17351]: https://github.com/crystal-lang/crystal/pull/17351 [#17355]: https://github.com/crystal-lang/crystal/pull/17355 [#17361]: https://github.com/crystal-lang/crystal/pull/17361 [#17363]: https://github.com/crystal-lang/crystal/pull/17363 [#17379]: https://github.com/crystal-lang/crystal/pull/17379 [#17396]: https://github.com/crystal-lang/crystal/pull/17396 [#17398]: https://github.com/crystal-lang/crystal/pull/17398 [#17415]: https://github.com/crystal-lang/crystal/pull/17415 [#17427]: https://github.com/crystal-lang/crystal/pull/17427 [#17429]: https://github.com/crystal-lang/crystal/pull/17429 [#17458]: https://github.com/crystal-lang/crystal/pull/17458 [#17479]: https://github.com/crystal-lang/crystal/pull/17479 [#17497]: https://github.com/crystal-lang/crystal/pull/17497 [#17512]: https://github.com/crystal-lang/crystal/pull/17512 [#17513]: https://github.com/crystal-lang/crystal/pull/17513 [#17526]: https://github.com/crystal-lang/crystal/pull/17526 [#17527]: https://github.com/crystal-lang/crystal/pull/17527 [#17532]: https://github.com/crystal-lang/crystal/pull/17532 [#17545]: https://github.com/crystal-lang/crystal/pull/17545 ### [`v1.21.1`](https://github.com/crystal-lang/crystal/releases/tag/1.21.1) [Compare Source](https://github.com/crystal-lang/crystal/compare/1.21.0...1.21.1) ##### Bugfixes ##### stdlib - *(collection)* **\[regression]** Override `Channel#tap(&)` to reinstate original behaviour ([#17296], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* **\[security]** Fix `HTTP::Request::Processor` resuming connection on unconsumed request ([#17434], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix non-blocking `Socket#connect` on Unix ([#17436], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(networking)* **\[security]** Fix `HTTP::Server::RequestProcessor` to consume request body before upgrade ([#17466], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* **\[security]** Fix do not automatically decompress HTTP request body ([#17476], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(serialization)* Fix `XML::Node#namespace` for node types without namespace ([#17435], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(serialization)* Fix `YAML::Any#hash` with self-referencing containers ([#17477], thanks [@straight-shoota](https://github.com/straight-shoota)) [#17296]: https://github.com/crystal-lang/crystal/pull/17296 [#17434]: https://github.com/crystal-lang/crystal/pull/17434 [#17435]: https://github.com/crystal-lang/crystal/pull/17435 [#17436]: https://github.com/crystal-lang/crystal/pull/17436 [#17466]: https://github.com/crystal-lang/crystal/pull/17466 [#17476]: https://github.com/crystal-lang/crystal/pull/17476 [#17477]: https://github.com/crystal-lang/crystal/pull/17477 ##### Infrastructure - Add changelog for 1.21.1 ([#17478], thanks [@straight-shoota](https://github.com/straight-shoota)) - Update distribution-scripts ([#17480], thanks [@straight-shoota](https://github.com/straight-shoota)) [#17478]: https://github.com/crystal-lang/crystal/pull/17478 [#17480]: https://github.com/crystal-lang/crystal/pull/17480 ### [`v1.21.0`](https://github.com/crystal-lang/crystal/releases/tag/1.21.0) [Compare Source](https://github.com/crystal-lang/crystal/compare/1.20.3...1.21.0) ##### Breaking changes ##### stdlib - *(runtime)* Release: Execution Contexts ([#17100], [#17104], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(text)* Disable automatic fallback to legacy `PCRE` ([#16924], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16924]: https://github.com/crystal-lang/crystal/pull/16924 [#17100]: https://github.com/crystal-lang/crystal/pull/17100 [#17104]: https://github.com/crystal-lang/crystal/pull/17104 ##### Features ##### lang - Add `%W` percent string array literals with interpolation ([#16919], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(macros)* Add `TypeNode#all_methods` that includes the type's ancestor's methods ([#16902], thanks [@Blacksmoke16](https://github.com/Blacksmoke16)) [#16902]: https://github.com/crystal-lang/crystal/pull/16902 [#16919]: https://github.com/crystal-lang/crystal/pull/16919 ##### stdlib - *(cli)* Align long-only options in OptionParser help ([#16914], thanks [@kojix2](https://github.com/kojix2)) - *(collection)* Make `Channel(T)` an `Iterator(T)` ([#16916], thanks [@jgaskins](https://github.com/jgaskins)) - *(crypto)* Add support for OpenSSL 4.0 ([#16839], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(crypto)* Support OpenSSL 4.x DLLs on Windows MSVC ([#17116], thanks [@HertzDevil](https://github.com/HertzDevil)) - *(networking)* **\[experimental]** Add `Socket#sendfile` (and `Crystal::EventLoop::Socket#sendfile`) ([#16665], [#17133], thanks [@ysbaddaden](https://github.com/ysbaddaden), [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Add `HTTP::WebSocket#receive` as a synchronous call ([#16689], thanks [@jgaskins](https://github.com/jgaskins)) - *(runtime)* Add `Crystal::EventLoop::FileDescriptor#pread` ([#17068], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Add `without_main` flag ([#17074], thanks [@kojix2](https://github.com/kojix2)) - *(runtime)* OpenBSD: use kqueue event loop by default ([#17123], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(serialization)* Support nested `root` properties in `JSON::Field` ([#17016], thanks [@tcoatswo](https://github.com/tcoatswo)) - *(serialization)* Add `URI::Params::Field(ignore:)`, `ignore_serialize`, `ignore_deserialize` ([#17029], thanks [@trypsynth](https://github.com/trypsynth)) - *(specs)* Allow chaining `#should`, `#should_not` expectations ([#17020], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(system)* Expose `Path#kind` ([#16917], thanks [@Sija](https://github.com/Sija)) - *(system)* Add splat overloads for `Process.capture`, `.run` and `.new` ([#16975], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(system)* Add `Process::Status.[]` constructor ([#17003], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(text)* Add `String#present?` ([#16930], thanks [@Sija](https://github.com/Sija)) - *(text)* Add `UUID.v6` and `.v8` generators ([#17010], thanks [@trypsynth](https://github.com/trypsynth)) [#16665]: https://github.com/crystal-lang/crystal/pull/16665 [#16689]: https://github.com/crystal-lang/crystal/pull/16689 [#16839]: https://github.com/crystal-lang/crystal/pull/16839 [#16914]: https://github.com/crystal-lang/crystal/pull/16914 [#16916]: https://github.com/crystal-lang/crystal/pull/16916 [#16917]: https://github.com/crystal-lang/crystal/pull/16917 [#16930]: https://github.com/crystal-lang/crystal/pull/16930 [#16975]: https://github.com/crystal-lang/crystal/pull/16975 [#17003]: https://github.com/crystal-lang/crystal/pull/17003 [#17010]: https://github.com/crystal-lang/crystal/pull/17010 [#17016]: https://github.com/crystal-lang/crystal/pull/17016 [#17020]: https://github.com/crystal-lang/crystal/pull/17020 [#17029]: https://github.com/crystal-lang/crystal/pull/17029 [#17068]: https://github.com/crystal-lang/crystal/pull/17068 [#17074]: https://github.com/crystal-lang/crystal/pull/17074 [#17116]: https://github.com/crystal-lang/crystal/pull/17116 [#17123]: https://github.com/crystal-lang/crystal/pull/17123 [#17133]: https://github.com/crystal-lang/crystal/pull/17133 ##### compiler - *(cli)* Classify compiler exit reasons ([#17028], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(debugger)* Improve proc debug metadata ([#16830], thanks [@skuznetsov](https://github.com/skuznetsov)) - *(debugger)* Emit debug metadata for constants and class vars ([#16831], thanks [@skuznetsov](https://github.com/skuznetsov)) - *(debugger)* Improve LLDB collection formatters ([#16832], thanks [@skuznetsov](https://github.com/skuznetsov)) - *(parser)* Add `ASTNode#inspect` ([#16699], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(parser)* Parse `MacroVar` with empty expressions: `%var{}` ([#16772], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(semantic)* Split branches on `when Bar, Baz` ([#17072], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16699]: https://github.com/crystal-lang/crystal/pull/16699 [#16772]: https://github.com/crystal-lang/crystal/pull/16772 [#16830]: https://github.com/crystal-lang/crystal/pull/16830 [#16831]: https://github.com/crystal-lang/crystal/pull/16831 [#16832]: https://github.com/crystal-lang/crystal/pull/16832 [#17028]: https://github.com/crystal-lang/crystal/pull/17028 [#17072]: https://github.com/crystal-lang/crystal/pull/17072 ##### tools - *(docs-generator)* Improve wording in warning about doc generator without LibXML2 ([#16926], thanks [@kojix2](https://github.com/kojix2)) [#16926]: https://github.com/crystal-lang/crystal/pull/16926 ##### Bugfixes ##### stdlib - *(cli)* Fix summary wrapping condition in OptionParser ([#16915], thanks [@kojix2](https://github.com/kojix2)) - *(cli)* Avoid `Process.exec` on Windows and explicitly spawn subprocess ([#17049], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(collection)* Fix `Iterator#compact_map` with `EmptyIterator` ([#16928], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(collection)* Fix `Iterator#compact_map` with non-nilable compactor proc ([#16927], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(concurrency)* Fix swapped atomic orderings in `Sync::MU` fast paths ([#17063], thanks [@stevegeek](https://github.com/stevegeek)) - *(llvm)* Fix use line 0 for unknown debug location ([#17013], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix `HTTP::Request.form_params?` to recognize `Content-Type` and `charset` ([#16934], [#16971], thanks [@swsch](https://github.com/swsch), [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Fix `HTTP::Client` to retry for connection recovery only ([#16981], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(networking)* Disable transport read-ahead for Kernel TLS sockets ([#17053], thanks [@jage](https://github.com/jage)) - *(runtime)* `Fiber::ExecutionContext::Monitor` compat with old Crystal releases ([#17007], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* `EventLoop::IoUring#open` musn't set `O_NONBLOCK` when blocking ([#17035], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* underperforming unlock conditions in `Sync::MU` ([#17070], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* `fdlock#try_close?` must release ref after yielding to the block ([#17089], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* `Fiber::ExecutionContext.current?` ([#17092], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Refactor Win32 iocp evloop ([#17101], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(serialization)* memory leak in `XML::Node#each_namespace` ([#17038], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(system)* skip Windows registry MIME entries with an invalid Content Type ([#17106], thanks [@SAY-5](https://github.com/SAY-5)) - *(text)* Fix `IO::Encoder#write` when operating on long strings ([#16797], thanks [@jgaskins](https://github.com/jgaskins)) [#16797]: https://github.com/crystal-lang/crystal/pull/16797 [#16915]: https://github.com/crystal-lang/crystal/pull/16915 [#16927]: https://github.com/crystal-lang/crystal/pull/16927 [#16928]: https://github.com/crystal-lang/crystal/pull/16928 [#16934]: https://github.com/crystal-lang/crystal/pull/16934 [#16971]: https://github.com/crystal-lang/crystal/pull/16971 [#16981]: https://github.com/crystal-lang/crystal/pull/16981 [#17007]: https://github.com/crystal-lang/crystal/pull/17007 [#17013]: https://github.com/crystal-lang/crystal/pull/17013 [#17035]: https://github.com/crystal-lang/crystal/pull/17035 [#17038]: https://github.com/crystal-lang/crystal/pull/17038 [#17049]: https://github.com/crystal-lang/crystal/pull/17049 [#17053]: https://github.com/crystal-lang/crystal/pull/17053 [#17063]: https://github.com/crystal-lang/crystal/pull/17063 [#17070]: https://github.com/crystal-lang/crystal/pull/17070 [#17089]: https://github.com/crystal-lang/crystal/pull/17089 [#17092]: https://github.com/crystal-lang/crystal/pull/17092 [#17101]: https://github.com/crystal-lang/crystal/pull/17101 [#17106]: https://github.com/crystal-lang/crystal/pull/17106 ##### compiler - *(cli)* Remedy short-flag conflict for `crystal spec -p` ([#17062], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(codegen)* Fix codegen treating distinct lib `type` aliases as the same type ([#16961], thanks [@stakach](https://github.com/stakach)) - *(interpreter)* Add interpreter `upcast_distinct` for `Pointer` to `Pointer` ([#16962], thanks [@stakach](https://github.com/stakach)) - *(interpreter:repl)* Fix auto-indentation in the REPL when typing classes. ([#16910], thanks [@I3oris](https://github.com/I3oris)) - *(interpreter:repl)* Fix interpreter multidispatch cache collision ([#16958], thanks [@stakach](https://github.com/stakach)) - *(parser)* Fix lexing `MacroVar` syntax in literal ([#16779], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(parser)* Fix parsing macro var without exps followed by macro expression ([#16879], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(parser)* Fix parse parenthesized expression in block arg assignment ([#16894], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(parser)* Do not merge nested `Expression` and `ExceptionHandler` ([#16852], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(parser)* Fix parser silently ignoring `&(...)`, `&[...]`, `&{...}` in assignment ([#16960], thanks [@stakach](https://github.com/stakach)) - *(parser)* Fix parser allow `/` and `//` immediately after `self`, `nil`, `true`, `false` ([#16942], thanks [@stakach](https://github.com/stakach)) - *(parser)* Fix short block setter call end location ([#17039], thanks [@Sija](https://github.com/Sija)) - *(semantic)* Fix freeze type of variable declared with `out` ([#16870], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(semantic)* Fix `lookup_matches_in_type` to reject partial matches ([#16867], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(semantic)* Fix location of double splat named tuple typenode entry locations ([#16889], thanks [@Blacksmoke16](https://github.com/Blacksmoke16)) - *(semantic)* Fix `sizeof`, `offsetof` as generic type argument in inferred ivar type ([#16811], thanks [@kojix2](https://github.com/kojix2)) - *(semantic)* Fix macro argument errors for path receiver calls ([#16923], thanks [@kojix2](https://github.com/kojix2)) - *(semantic)* Detect uninitialized ancestor ivars through macro_def initializers ([#16959], thanks [@stakach](https://github.com/stakach)) - *(semantic)* Preserve `nil_if_read?` across while cond filters ([#16963], thanks [@stakach](https://github.com/stakach)) - *(semantic)* Keep wider subclass observer when call owner narrows ([#16947](https://github.com/crystal-lang/crystal/issues/16947)) ([#16990], thanks [@stakach](https://github.com/stakach)) - *(semantic)* Symmetric `common_descendent` for two generic class types ([#10831](https://github.com/crystal-lang/crystal/issues/10831)) ([#16999], thanks [@stakach](https://github.com/stakach)) [#16779]: https://github.com/crystal-lang/crystal/pull/16779 [#16811]: https://github.com/crystal-lang/crystal/pull/16811 [#16852]: https://github.com/crystal-lang/crystal/pull/16852 [#16867]: https://github.com/crystal-lang/crystal/pull/16867 [#16870]: https://github.com/crystal-lang/crystal/pull/16870 [#16879]: https://github.com/crystal-lang/crystal/pull/16879 [#16889]: https://github.com/crystal-lang/crystal/pull/16889 [#16894]: https://github.com/crystal-lang/crystal/pull/16894 [#16910]: https://github.com/crystal-lang/crystal/pull/16910 [#16923]: https://github.com/crystal-lang/crystal/pull/16923 [#16942]: https://github.com/crystal-lang/crystal/pull/16942 [#16958]: https://github.com/crystal-lang/crystal/pull/16958 [#16959]: https://github.com/crystal-lang/crystal/pull/16959 [#16960]: https://github.com/crystal-lang/crystal/pull/16960 [#16961]: https://github.com/crystal-lang/crystal/pull/16961 [#16962]: https://github.com/crystal-lang/crystal/pull/16962 [#16963]: https://github.com/crystal-lang/crystal/pull/16963 [#16990]: https://github.com/crystal-lang/crystal/pull/16990 [#16999]: https://github.com/crystal-lang/crystal/pull/16999 [#17039]: https://github.com/crystal-lang/crystal/pull/17039 [#17062]: https://github.com/crystal-lang/crystal/pull/17062 ##### tools - *(formatter)* Fix format empty `then` with trailing comment ([#16878], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(formatter)* Fix formatting whitespace in ternary `if` with trailing comments ([#16880], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(formatter)* Fix formatter on empty string literal continuation ([#16817], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(formatter)* Fix format annotations of splat parameter ([#16987], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(formatter)* Fix formatter strip empty lines in heredoc ([#17034], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16817]: https://github.com/crystal-lang/crystal/pull/16817 [#16878]: https://github.com/crystal-lang/crystal/pull/16878 [#16880]: https://github.com/crystal-lang/crystal/pull/16880 [#16987]: https://github.com/crystal-lang/crystal/pull/16987 [#17034]: https://github.com/crystal-lang/crystal/pull/17034 ##### Chores ##### stdlib - *(cli)* **\[deprecation]** Deprecate `Colorize.on_tty_only!` ([#16859], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(concurrency)* **\[deprecation]** Deprecate `spawn(same_thread:)` ([#17097], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(files)* **\[deprecation]** Rename parameter to `writable` in `IO::Memory.new` ([#16858], [#16883], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(system)* **\[deprecation]** Hide platform-specific `Process::Status` constructor ([#16997], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16858]: https://github.com/crystal-lang/crystal/pull/16858 [#16859]: https://github.com/crystal-lang/crystal/pull/16859 [#16883]: https://github.com/crystal-lang/crystal/pull/16883 [#16997]: https://github.com/crystal-lang/crystal/pull/16997 [#17097]: https://github.com/crystal-lang/crystal/pull/17097 ##### Performance ##### stdlib - *(collection)* Preallocate correct size for hash in `Hash.zip` ([#17054], thanks [@carlhoerberg](https://github.com/carlhoerberg)) [#17054]: https://github.com/crystal-lang/crystal/pull/17054 ##### Refactor ##### stdlib - *(cli)* Split error helper for compiler CLI into independent methods ([#16984], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(cli)* Refactor compiler code to raise `CompilerError` instead of `abort` ([#16995], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(concurrency)* simplify read console (windows) ([#17098], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(concurrency)* `Process#wait` on Windows ([#17099], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(networking)* Refactor bubbling exceptions from user code in `HTTP::Client#exec(&)` ([#16969], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(runtime)* Internalize `IO::Evented` into `Crystal::EventLoop::Wasi` ([#17030], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Fix: thread safety of the libevent event loop ([#17031], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Drop unused `IO::Evented` and `Crystal::ThreadLocalValue` ([#17032], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* Consolidate `#overlapped_connect` and `#overlapped_accept` into `EventLoop::IOCP` ([#17090], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(runtime)* OpenBSD now supports EVFILT_USER ([#17121], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(system)* Refactor `Dir::Globber` to a struct with instance methods ([#16899], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(system)* Refactor internal `Process` constructor to receive `Crystal::System::Process` ([#16933], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(system)* dont parse but mmap ELF, Mach-O, PE files and some DWARF sections ([#16939], [#17134], thanks [@ysbaddaden](https://github.com/ysbaddaden)) [#16899]: https://github.com/crystal-lang/crystal/pull/16899 [#16933]: https://github.com/crystal-lang/crystal/pull/16933 [#16939]: https://github.com/crystal-lang/crystal/pull/16939 [#16969]: https://github.com/crystal-lang/crystal/pull/16969 [#16984]: https://github.com/crystal-lang/crystal/pull/16984 [#16995]: https://github.com/crystal-lang/crystal/pull/16995 [#17030]: https://github.com/crystal-lang/crystal/pull/17030 [#17031]: https://github.com/crystal-lang/crystal/pull/17031 [#17032]: https://github.com/crystal-lang/crystal/pull/17032 [#17090]: https://github.com/crystal-lang/crystal/pull/17090 [#17098]: https://github.com/crystal-lang/crystal/pull/17098 [#17099]: https://github.com/crystal-lang/crystal/pull/17099 [#17121]: https://github.com/crystal-lang/crystal/pull/17121 [#17134]: https://github.com/crystal-lang/crystal/pull/17134 ##### compiler - Replace backticks with `Process.capture` ([#17012], [#17122], thanks [@straight-shoota](https://github.com/straight-shoota), [@ysbaddaden](https://github.com/ysbaddaden)) - *(codegen)* Set `optsize` and `minsize` fun attributes for the `-Os` and `-Oz` optimization modes ([#16983], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(parser)* Parse parens in type grammar into `Union#parens` ([#16744], [#16908], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(parser)* Refactor whitespace branch in `Lexer#next_macro_token` \[follow-up [#16771](https://github.com/crystal-lang/crystal/issues/16771)] ([#16776], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(parser)* Refactor formatter, remove internal `delimited_pair(advance)` ([#17023], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16744]: https://github.com/crystal-lang/crystal/pull/16744 [#16776]: https://github.com/crystal-lang/crystal/pull/16776 [#16908]: https://github.com/crystal-lang/crystal/pull/16908 [#16983]: https://github.com/crystal-lang/crystal/pull/16983 [#17012]: https://github.com/crystal-lang/crystal/pull/17012 [#17023]: https://github.com/crystal-lang/crystal/pull/17023 [#17122]: https://github.com/crystal-lang/crystal/pull/17122 ##### tools - *(formatter)* **\[breaking]** Standardize parsing of symbol and string array literals ([#16748], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(formatter)* Drop `format_binary` parameter `alternative` ([#16912], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16748]: https://github.com/crystal-lang/crystal/pull/16748 [#16912]: https://github.com/crystal-lang/crystal/pull/16912 ##### other - Fix violations reported by ameba 1.7 ([#17021], thanks [@straight-shoota](https://github.com/straight-shoota)) [#17021]: https://github.com/crystal-lang/crystal/pull/17021 ##### Documentation ##### stdlib - *(cli)* Add missing_option to OptionParser example ([#17112], thanks [@LaskaIDK](https://github.com/LaskaIDK)) - *(macros)* Improve docs for `::delegate` ([#16854], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(text)* Document null-termination on `String#to_unsafe` ([#16869], thanks [@mvanhorn](https://github.com/mvanhorn)) - *(text)* Document `String` is not inheritable ([#17000], thanks [@LaskaIDK](https://github.com/LaskaIDK)) [#16854]: https://github.com/crystal-lang/crystal/pull/16854 [#16869]: https://github.com/crystal-lang/crystal/pull/16869 [#17000]: https://github.com/crystal-lang/crystal/pull/17000 [#17112]: https://github.com/crystal-lang/crystal/pull/17112 ##### other - Fix typo `writable` in documentation ([#16848], thanks [@straight-shoota](https://github.com/straight-shoota)) - Format asciidoc ([#16992], thanks [@straight-shoota](https://github.com/straight-shoota)) - rumdl: Fix MD077: Continuation line over-indented ([#17085], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16848]: https://github.com/crystal-lang/crystal/pull/16848 [#16992]: https://github.com/crystal-lang/crystal/pull/16992 [#17085]: https://github.com/crystal-lang/crystal/pull/17085 ##### Specs ##### stdlib - *(cli)* Refactor `run_git` spec helper to use `Process.capture_result?` ([#17079], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(collection)* Add specs for `Iterator.empty` ([#17014], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(concurrency)* Fix: Crystal 1.0.0 is confused by file private types ([#17067], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - *(networking)* Extract spec helpers `close_connection` and `client_for` for HTTP client specs ([#16968], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(text)* Add specs for range accessor with open ended exclusive range ([#16849], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16849]: https://github.com/crystal-lang/crystal/pull/16849 [#16968]: https://github.com/crystal-lang/crystal/pull/16968 [#17014]: https://github.com/crystal-lang/crystal/pull/17014 [#17067]: https://github.com/crystal-lang/crystal/pull/17067 [#17079]: https://github.com/crystal-lang/crystal/pull/17079 ##### compiler - *(cli)* Add `compiler-cli` test suite ([#17033], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(debugger)* Fix `lldb-check` expectations in debug tests for compatibility with modern LLDB ([#16860], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16860]: https://github.com/crystal-lang/crystal/pull/16860 [#17033]: https://github.com/crystal-lang/crystal/pull/17033 ##### other - Remove unnecessary `not_nil!` in spec suite ([#16865], thanks [@straight-shoota](https://github.com/straight-shoota)) - Replace `not_nil!` with `should_not(be_nil)` in spec suite ([#16906], thanks [@straight-shoota](https://github.com/straight-shoota)) [#16865]: https://github.com/crystal-lang/crystal/pull/16865 [#16906]: https://github.com/crystal-lang/crystal/pull/16906 ##### Infrastructure - Changelog for 1.21.0 ([#17095], thanks [@straight-shoota](https://github.com/straight-shoota)) - Update previous Crystal release 1.20.0 ([#16844], thanks [@ysbaddaden](https://github.com/ysbaddaden)) - Update previous Crystal release 1.20.1 ([#16901], thanks [@straight-shoota](https://github.com/straight-shoota)) - Merge `release/1.19`@`1.19.2` into `master` ([#16905], thanks [@straight-shoota](https://github.com/straight-shoota)) - Merge `release/1.20`@`1.20.1` into `master` ([#16900], thanks [@straight-shoota](https://github.com/straight-shoota)) - Update `devenv.lock` ([#16819], [#16935], [#17006], [#17075], [#17084], thanks [@github-actions](https://github.com/github-actions), [@crysbot](https://github.com/crysbot)) - Update changelog script ([#16946], thanks [@straight-shoota](https://github.com/straight-shoota)) - Extract `CRYSTAL_BOOTSTRAP_VERSION` in `bin/ci` ([#16966], thanks [@straight-shoota](https://github.com/straight-shoota)) - Update previous Crystal release 1.20.2 ([#16954], thanks [@straight-shoota](https://github.com/straight-shoota)) - Makefile: Split `install` target into subcomponents ([#16980], thanks [@straight-shoota](https://github.com/straight-shoota)) - Update `release-update` script ([#16977], thanks [@straight-shoota](https://github.com/straight-shoota)) - Makefile: Build manpages for `install` target ([#16991], thanks [@straight-shoota](https://github.com/straight-shoota)) - Apply `shfmt` ([#17015], thanks [@straight-shoota](https://github.com/straight-shoota)) - Apply `mbake` formatter for `Makefile` ([#17024], thanks [@straight-shoota](https://github.com/straight-shoota)) - infra: devenv input for `git-hooks` follows `nixpkgs` ([#17064], thanks [@straight-shoota](https://github.com/straight-shoota)) - Replace `markdownlint` with `rumdl` ([#17069], thanks [@straight-shoota](https://github.com/straight-shoota)) - Replace `.markdownlint.yaml` with `rumdl.toml` ([#17078], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Fix `-Devloop=io_uring` flag in Linux CI ([#16843], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Use PAT from GHA environments for `backport` job ([#16864], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Use AWS credentials from GHA environments for `deploy_api_docs` job ([#16863], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Update GH Actions ([#16836], [#16944], [#17011], [#17042], \[[#17117](https://github.com/crystal-lang/crystal/issues/17117)], thanks [@renovate](https://github.com/renovate)) - *(ci)* Use Crysbot token in `update-devenv` workflow to trigger CI ([#16938], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Fix tags for nightly docker images ([#16973], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Drop separate `aarch64` workflow ([#16965], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Update crate-ci/typos action to v1.46.2 ([#16986], thanks [@renovate](https://github.com/renovate)) - *(ci)* Update `macos-15` runners to `macos-26` ([#17022], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Upgrade library dependencies for Windows CI ([#17025], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Upgrade windows runners to VS 2026 ([#17043], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Upgrade nixpkgs 26.05 in `Lint` workflow ([#17066], thanks [@straight-shoota](https://github.com/straight-shoota)) - *(ci)* Update previous Crystal release 1.20.3 ([#17114], thanks [@ysbaddaden](https://github.com/ysbaddaden)) [#16819]: https://github.com/crystal-lang/crystal/pull/16819 [#16836]: https://github.com/crystal-lang/crystal/pull/16836 [#16843]: https://github.com/crystal-lang/crystal/pull/16843 [#16844]: https://github.com/crystal-lang/crystal/pull/16844 [#16863]: https://github.com/crystal-lang/crystal/pull/16863 [#16864]: https://github.com/crystal-lang/crystal/pull/16864 [#16900]: https://github.com/crystal-lang/crystal/pull/16900 [#16901]: https://github.com/crystal-lang/crystal/pull/16901 [#16905]: https://github.com/crystal-lang/crystal/pull/16905 [#16935]: https://github.com/crystal-lang/crystal/pull/16935 [#16938]: https://github.com/crystal-lang/crystal/pull/16938 [#16944]: https://github.com/crystal-lang/crystal/pull/16944 [#16946]: https://github.com/crystal-lang/crystal/pull/16946 [#16954]: https://github.com/crystal-lang/crystal/pull/16954 [#16965]: https://github.com/crystal-lang/crystal/pull/16965 [#16966]: https://github.com/crystal-lang/crystal/pull/16966 [#16973]: https://github.com/crystal-lang/crystal/pull/16973 [#16977]: https://github.com/crystal-lang/crystal/pull/16977 [#16980]: https://github.com/crystal-lang/crystal/pull/16980 [#16986]: https://github.com/crystal-lang/crystal/pull/16986 [#16991]: https://github.com/crystal-lang/crystal/pull/16991 [#17006]: https://github.com/crystal-lang/crystal/pull/17006 [#17011]: https://github.com/crystal-lang/crystal/pull/17011 [#17015]: https://github.com/crystal-lang/crystal/pull/17015 [#17022]: https://github.com/crystal-lang/crystal/pull/17022 [#17024]: https://github.com/crystal-lang/crystal/pull/17024 [#17025]: https://github.com/crystal-lang/crystal/pull/17025 [#17042]: https://github.com/crystal-lang/crystal/pull/17042 [#17043]: https://github.com/crystal-lang/crystal/pull/17043 [#17064]: https://github.com/crystal-lang/crystal/pull/17064 [#17066]: https://github.com/crystal-lang/crystal/pull/17066 [#17069]: https://github.com/crystal-lang/crystal/pull/17069 [#17075]: https://github.com/crystal-lang/crystal/pull/17075 [#17078]: https://github.com/crystal-lang/crystal/pull/17078 [#17084]: https://github.com/crystal-lang/crystal/pull/17084 [#17095]: https://github.com/crystal-lang/crystal/pull/17095 [#17114]: https://github.com/crystal-lang/crystal/pull/17114 </details> --- ### Configuration 📅 **Schedule**: (UTC) - Branch creation - At any time (no schedule defined) - Automerge - At any time (no schedule defined) 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate CLI](https://github.com/renovatebot/renovate).

renovate-bot added 1 commit

2026-09-15 12:45:46 -03:00

Update dependency crystal-lang/crystal to v1.21.0 2bdfac5fd0

renovate-bot force-pushed renovate/crystal-lang-crystal-1.x from 2bdfac5fd0 to 0bcf7644d8

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renovate-bot changed title from ~~Update dependency crystal-lang/crystal to v1.21.0~~ to Update dependency crystal-lang/crystal to v1.21.1

2026-09-26 09:22:03 -03:00

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renovate-bot changed title from ~~Update dependency crystal-lang/crystal to v1.21.1~~ to chore(deps): update dependency crystal-lang/crystal to v1.21.1

2026-10-04 03:01:23 -03:00

renovate-bot changed title from ~~chore(deps): update dependency crystal-lang/crystal to v1.21.1~~ to chore(deps): update dependency crystal-lang/crystal to v1.22.0

2026-10-12 11:21:32 -03:00

renovate-bot force-pushed renovate/crystal-lang-crystal-1.x from 246feec72d to 2ae44132be

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