1.7.0

Language

• Add lib functions earlier so that they are visible in top-level macros (#12848, thanks @asterite)

Standard Library

• Improve Benchmark docs (#12782, thanks @r00ster91, @straight-shoota)
• Improve documentation for Object#to_s and #inspect (#9974, thanks @straight-shoota)
• Add methods to manipulate semantic versions (#12834, thanks @gabriel-ss)
• Add types to methods with defaults (#12837, thanks @caspiano)
• examples: fix (2022-10) (#12665, thanks @maiha)
• Fix documentation for Pointer#move_to (#12677, thanks @TheEEs)
• (performance) Eliminate nil from many predicate methods (#12702, thanks @HertzDevil)
• examples: fix (2022-12) (#12870, thanks @maiha)

Collection

• Fix missed elements in Hash#select!(keys : Enumerable) (#12739, thanks @caspiano)
• Add missing docs for Indexable combinations methods (#10548, thanks @keidax)
• (performance) Optimize Range#sample(n) for integers and floats (#12535, thanks @straight-shoota)
• Add Iterable#each_cons_pair (#12726, thanks @caspiano)
• Add links to equivalent Iterator methods in Iterable (#12727, thanks @caspiano)
• (performance) Optimize Hash#select(Enumerable) and #merge!(Hash, &) (#12737, thanks @HertzDevil)
• Add Indexable#rindex! method variant (#12759, thanks @Sija)
• (performance) Use mutating collection methods (#12644, thanks @caspiano)
• Fix Enum#to_s for flag enum containing named and unnamed members (#12895, thanks @straight-shoota)

Concurrency

• Allow the EventLoop implementation to be detected at runtime (#12656, thanks @lbguilherme)
• (performance) Optimize uniqueness filter in Channel.select_impl (#12814, thanks @straight-shoota)
• Implement multithreading primitives on Windows (#11647, thanks @HertzDevil)

Crypto

• (breaking-change) Implement Digest class in Digest::CRC32 and Digest::Adler32 (#11535, thanks @BlobCodes)
• Fix OpenSSL::SSL::Context::Client#alpn_protocol= (#12724, thanks @jaclarke)
• Fix HTTP::Client certificate validation error on FQDN (host with trailing dot) (#12778, thanks @compumike)
• Enable arc4random(3) on all supported BSDs and macOS/Darwin (#12608, thanks @dmgk)

Files

• Fix: Read UInt in zip directory header (#12822, thanks @pbrumm)
• Add File.executable? for Windows (#9677, thanks @nof1000)

Macros

• Fix TypeNode#nilable? for root types (#12354, thanks @HertzDevil)
• Add argless #annotations overload (#9326, thanks @Blacksmoke16)
• Add specs for addition between ArrayLiteral and TupleLiteral (#12639, thanks @caspiano)
• Add ArrayLiteral#-(other) and TupleLiteral#-(other) (#12646, #12916 thanks @caspiano, @straight-shoota)

Networking

• (breaking-change) Add HTTP::Headers#serialize (#12765, thanks @straight-shoota)
• Ensure HTTP::Client closes response when breaking out of block (#12749, thanks @straight-shoota)
• Add HTTP::Server::Response#redirect (#12526, thanks @straight-shoota)
• (performance) Websocket: write masked data to temporary buffer before sending it (#12613, thanks @asterite)
• Validate cookie name prefixes (#10648, thanks @Blacksmoke16)
• IPAddress#loopback? should consider ::ffff:127.0.0.1/104 loopback too (#12783, thanks @carlhoerberg)

Numeric

• Support new SI prefixes in Number#humanize (#12761, thanks @HertzDevil)
• Fix BigInt#% for unsigned integers (#12773, thanks @straight-shoota)
• [WASM] Add missing __powisf2 and __powidf2 compiler-rt functions (#12569, thanks @lbguilherme)
• Add docs for Int#downto (#12468, thanks @yb66)
• Upgrade the Dragonbox algorithm (#12767, thanks @HertzDevil)
• Support scientific notation in BigDecimal#to_s (#10805, thanks @HertzDevil)
• Add #bit_reverse and #byte_swap for primitive integers (#12865, thanks @HertzDevil)
• Fix Number comparison operator docs (#12880, thanks @fdocr)

Runtime

• Exception::CallStack: avoid allocations in LibC.dl_iterate_phdr (#12625, thanks @dmgk)
• Fix explicit type conversion to u64 for GC::Stats (#12779, thanks @straight-shoota)
• Add custom message parameter to #not_nil! (#12797, thanks @straight-shoota)
• Refactor specs for Enum#to_s using assert_prints (#12882, thanks @straight-shoota)

Serialization

• (performance) Leverage GC.malloc_atomic for XML (#12692, thanks @HertzDevil)
• Refactor libXML error handling to remove global state (#12663, #12795, thanks @straight-shoota)
• Use qualified type reference YAML::Any (#12688, thanks @zw963)
• Automatically cast Int to Float for {JSON,YAML}::Any#as_f (#12835, thanks @compumike)

Specs

• Print seed info at start and end of spec output (#12755, thanks @straight-shoota)

System

• (breaking) Rename File.real_path to .realpath (#12552, thanks @straight-shoota)
• (breaking-change) Drop FreeBSD 11 compatibility code (#12612, thanks @dmgk)
• Trap when trying to raise wasm32 exceptions (#12572, thanks @lbguilherme)
• Use single helper method to pass UTF-16 strings to Windows (#12695, #12747, thanks @HertzDevil, @straight-shoota)
• Implement flock_* fiber-aware, without blocking the thread (#12861, #12728, thanks @straight-shoota)
• Implement flock_* for Win32 (#12766, thanks @straight-shoota)
• Add docs to ENV#has_key? (#12781, thanks @straight-shoota)
• Improve specs by removing absolute path references (#12776, thanks @straight-shoota)
• Update FreeBSD LibC types (#12651, thanks @dmgk)
• Organize Process specs (#12889, thanks @straight-shoota)
• Add tests for Process::Status (#12881, thanks @straight-shoota)

Text

• Raise IndexError on unmatched subpattern for MatchData#begin and #end (#12810, thanks @straight-shoota)
• Swap documentation for String#split array and block versions (#12808, thanks @hugopl)
• Add String#index/rindex! methods (#12730, thanks @Sija)
• Re-organize and enhance specs for Regex and Regex::MatchData (#12788, [#12789](https://github.com/crystal-lang/...

1.6.2

Language

• Fix VirtualMetaclassType#implements? to ignore base type (#12632, thanks @straight-shoota)

Compiler

• Compiler: handle yield expressions without a type (#12679, thanks @asterite)
• Partial revert "Compiler: refactor and slightly optimize merging two types (#12436)" (#12709, thanks @caspiano)

Semantic

• Compiler: ignore type filters when accepting cast for obj and to (#12668, thanks @asterite)

Other

• (security) CI: Update to OpenSSL 3.0.7 for bundled lib on Windows (#12712, thanks @beta-ziliani)

1.6.1

Compiler

Interpreter

• Interpreter (repl): migrate types even if their size remains the same (#12581, thanks @asterite)
• Unbreak the interpreter on FreeBSD (#12600, thanks @dmgk)
• Fix FFI specs on release builds (#12601, thanks @HertzDevil)
• Adding welcome message to the interpreter (#12511, thanks @beta-ziliani)

Semantic

• Treat single splats with same restriction as equivalent (#12584, thanks @HertzDevil)

Tools

Formatter

• Formatter: escape backslashes in macro literals when subformatting (#12582, thanks @asterite)

Playground

• Fix origin validation in playground server for localhost (#12599, thanks @straight-shoota)

Other

• Fix doc typos in Socket::IPAddress (#12583, thanks @Blacksmoke16)
• Fix building Wasm32 on Crystal 1.6 (Regression) (#12580, thanks @lbguilherme)
• Bump version to 1.6.1-dev (#12588, thanks @straight-shoota)
• Disable failing specs on Windows CI (#12585, thanks @HertzDevil)
• Detect llvm-configXX while building compiler (#12602, thanks @HertzDevil)

1.6.0

Language

• Add 'wasm_import_module' option to the @[Link] annotation (#11935, thanks @lbguilherme)

Standard Library

• Use GC.malloc_atomic with GC.realloc, not Pointer#realloc (#12391, thanks @HertzDevil)
• Improve syntax highlighter (#12409, thanks @I3oris)
• Enable miscellaneous parts of the standard library on Windows (#12281, thanks @HertzDevil)
• Use interpreter to run std spec tests (#12355, thanks @cyangle)
• Remove most uses of Symbol variables in standard library specs (#12462, thanks @HertzDevil)
• Use @[::Primitive] and @[::Flags] where necessary (#11900, thanks @HertzDevil)
• Document how to change base type of an enum (#9803, thanks @Blacksmoke16)
• Spec: bump and document timeouts in interpreted mode (#12430, thanks @asterite)

Collection

• Refactor and improve NamedTuple deserialization from JSON and YAML (#12008, thanks @HertzDevil)
• (performance) Optimize BitArray#tally(hash) (#11909, thanks @HertzDevil)
• Use Slice#unsafe_slice_of and #to_unsafe_bytes in the standard library and compiler (#12280, thanks @HertzDevil)
• (performance) Optimize block-less overloads of BitArray#index and #rindex (#12087, thanks @HertzDevil)
• Support tuple metaclass indexers with non-literal arguments (#11834, thanks @HertzDevil)
• Add Indexable#index! overloads with offset parameter (#12089, thanks @HertzDevil)

Concurrency

• Fix fiber clean loop on Windows (#12300, thanks @HertzDevil)
• Enable Mutex on Windows (#12213, thanks @HertzDevil)

Crypto

• Add support for Bcrypt algorithm version 2y (#12447, thanks @docelic)
• Allow using U/Int128 in Random (#11977, thanks @BlobCodes)

Files

• (breaking-change) Define #system_echo and #system_raw on all systems (#12352, thanks @HertzDevil)
• (breaking-change) Do not expose Crystal::System::FileInfo through File::Info (#12385, thanks @HertzDevil)
• Fix IO.pipe spec on FreeBSD (#12324, thanks @dmgk)
• Fix docs error for File.match? ** globbing pattern. (#12343, thanks @zw963)
• Add Dir#info (#11991, thanks @didactic-drunk)
• Implement IO::FileDescriptor's console methods on Windows (#12294, thanks @HertzDevil)
• Fix typo: LibC::DT_LINK -> DT_LNK (#11954, thanks @HertzDevil)
• Document IO::FileDescriptor#info (#12384, thanks @HertzDevil)
• (performance) Introduce IO::DEFAULT_BUFFER_SIZE (#12507, thanks @straight-shoota)
• Add support for IO::FileDescriptor staying open on finalize (#12367, thanks @refi64)

Macros

• Enhance record documentation (#12334, thanks @straight-shoota)

Networking

• Add Socket::IPAddress.valid? (#12489, #10492, thanks @straight-shoota)
• Fix HTTP::Client#exec to abort retry when client was closed (#12465, thanks @straight-shoota)
• Fix specs with side effects (#12539, thanks @straight-shoota)
• Fix HTTP::Client implicit compression with retry (#12536, thanks @straight-shoota)
• HTTP::StaticFileHandler: Reduce max stat calls from 6 to 2 (#12310, thanks @didactic-drunk)
• Add warning about concurrent requests in HTTP::Client (#12527, thanks @straight-shoota)

Numeric

• Add full integer support to sprintf and String#% (#10973, thanks @HertzDevil)
• Make Float#to_s ignore NaN sign bit (#12399, thanks @HertzDevil)
• Make sprintf and String#% ignore NaN sign bit (#12400, thanks @HertzDevil)
• Fix Complex#to_s imaginary component sign for certain values (#12244, thanks @HertzDevil)
• More accurate definition of Complex#sign (#12242, thanks @HertzDevil)
• Fix overflow for rand(Range(Int, Int)) when signed span is too large (#12545, thanks @HertzDevil)
• (performance) Add #rotate_left and #rotate_right for primitive integers (#12307, thanks @HertzDevil)
• (performance) Optimize BigDecimal#div for inexact divisions (#10803, thanks @HertzDevil)
• Implement the Dragonbox algorithm for Float#to_s (#10913, thanks @HertzDevil)
• Add U/Int128 to isqrt spec (#11976, thanks @BlobCodes)

Runtime

• Fix: Parse DWARF5 Data16 values (#12497, thanks @stakach)
• macOS: Fix call stack when executable path contains symlinks (#12504, thanks @HertzDevil)
• WASM: Add support for wasi-sdk 16: don't rely on __original_main (#12450, thanks @lbguilherme)

Serialization

• Fix YAML serialization class name ambiguity (#12537, thanks @hugopl)
• Allow non-type converter instances in ArrayConverter and HashValueConverter (#10638, thanks @HertzDevil)
• Document after_initialize method for yaml and json serializers (#12530, thanks @analogsalad)

System

• Add missing fields to LibC::Passwd on FreeBSD (#12315, thanks @dmgk)
• Add platform-specific variants of Process.parse_arguments (#12278, thanks @HertzDevil)
• Make Dir.current respect $PWD (#12471, thanks @straight-shoota)

Text

• Fix String shift state specs on FreeBSD (#12339, thanks @dmgk)
• Disallow mixing of sequential and named sprintf parameters (#12402, thanks @HertzDevil)
• Fix Colorize doc example (#12492, thanks @zw963)
• (performance) Optimize String#downcase and String#upcase for single byte optimizable case (#12389, thanks @asterite)
• (performance) Optimize String#valid_encoding? (#12145, thanks @HertzDevil)
• Implement String#unicode_normalize and String#unicode_normalized? (#11226, thanks @HertzDevil)
• Support parameter numbers in sprintf (#12448, thanks @HertzDevil)
• Use LibC.malloc instead of GC.malloc for LibPCRE allocations (#12456, thanks @lbguilherme)
• Unicode: Update to version 15.0.0 (#12479, thanks @HertzDevil)
• Avoid free call in interpreted mode (#12496, thanks @straight-shoota)

Compiler

• Improve recursive splat expansion detection (#11790, thanks @asterite)
• Compiler: fix #to_s for empty parameters of lib funs (#12368, thanks @HertzDevil)
• Compiler: transform Proc(*T, Void) to Proc(*T, Nil) (#12388, thanks @asterite)
• Compiler: indent begin Expressions that are direct node children (#12362, thanks @HertzDevil)
• Compiler: add missing location to node on literal expander for array (#12403, thanks @asterite)
• Compiler: a generic class type can also be reference-like ([#12347](https:...

1.5.1

Standard Library

• Fix Class#nilable? for recursive unions and root types (#12353, thanks @HertzDevil)

Numeric

• Fix Float#abs and Number#format for -0.0 (#12424, thanks @straight-shoota)

Text

• Fix null dereference when passing empty slice to Base64.encode (#12377, thanks @dscottboggs)

Compiler

• Do not check abstract def parameter names on abstract types and modules (#12434, thanks @HertzDevil)

Codegen

• Compiler/codegen: reset @needs_value (#12444, thanks @asterite)
• Fix homogeneous_aggregate? check for aarch64 types (#12445, thanks @mattrberry)

Semantic

• Compiler: don't eagerly check cast type (#12272, thanks @asterite)
• Fix type restriction augmenter for Union(*T) and similar (#12438, thanks @asterite)

Tools

Formatter

• Formatter: Fix assign followed by comment (#12319, thanks @straight-shoota)
• Handle formatting annotated method parameters (#12446, thanks @Blacksmoke16)

Other

• Update distribution-scripts (#12359, thanks @straight-shoota)
• Update distribution-scripts (#12333, thanks @straight-shoota)
• [CI] Bumping xcode to 13.4.1 (#12264, thanks @beta-ziliani)

1.5.0

1.5.0 (2022-07-06)

Language

• (breaking-change) Warn on positional parameter mismatches for abstract def implementations (#11915, #12167, thanks @HertzDevil)
• Fix \{{...}} syntax in macro inside comments (#12175, thanks @asterite)
• Let constant tuple indexers work with constants (#12012, thanks @asterite)
• Refactor restriction mechanism for autocasting (#12014, thanks @HertzDevil)
• Support unions in Crystal::Macros::ASTNode#is_a? (#12086, thanks @HertzDevil)
• Experimental: restriction augmenter (#12103, #12136, #12143, #12130, thanks @asterite)
• Method/macro parameter annotation support (#12044, thanks @Blacksmoke16)

Standard Library

• Support Path for chdir arg in Process methods (#11932, thanks @caspiano)
• Add docs for Enum#value (#11947, thanks @lbguilherme)
• Fix positional parameter warnings in specs (#12158, thanks @straight-shoota)
• Use more specific expectations in specs (#11951, thanks @HertzDevil)
• Use contain expectations in more specs (#11950, thanks @HertzDevil)

Collection

• Fix Hash#reject! for non-equality key (#10511, thanks @straight-shoota)
• Introduce Tuple.element_type and NamedTuple.element_type (#12011, thanks @HertzDevil)
• Rename "take" to "first" (#11988, thanks @jmdyck)
• Add spec for Array#- with different generic type arguments (#12049, thanks @straight-shoota)

Concurrency

• Windows: Always use GC_set_stackbottom on Windows (#12186, thanks @HertzDevil)
• Windows: Event loop based on IOCP (#12149, thanks @straight-shoota, @wonderix, @yxhuvud, @HertzDevil)
• Use enum instead of symbol for Atomic primitives (#11583, thanks @HertzDevil)
• Allow Enumerable(Channel) parameter for Channel.send_first, .receive_first (#12101, thanks @carlhoerberg)

Crypto

• (performance) Add faster Digest#hexfinal (#9292, thanks @didactic-drunk)
• Handle OpenSSL 3.0 KTLS ctrl calls (#12034, thanks @1player)

Files

• Fix Path#join(Enumerable) (#12032, thanks @straight-shoota)
• Fix Path#join to convert argument path to base kind (#12033, thanks @straight-shoota)
• Fix Dir.glob with multi components after recursive wildcard (#12057, thanks @straight-shoota)
• Add File#delete? and Dir#delete? (#11887, thanks @didactic-drunk)
• Accept Path arguments in Compress::Zip (#11925, thanks @didactic-drunk)
• Update file.cr (#12024, thanks @rdp)
• Add File#chown and #chmod (#11886, thanks @didactic-drunk)

Log

• Change Log emitters to not emit event when block output is nil (#12000, thanks @robacarp)

Networking

• Enable more networking specs on Windows (#12176, thanks @HertzDevil)
• Add specs for Windows directory separators in StaticFileHandler paths (#11884, thanks @straight-shoota)
• Add property HTTP::Server::Response#status_message (#10416, thanks @straight-shoota)

Numeric

• Fix Complex.multiplicative_identity (#12051, thanks @I3oris)
• Add docs for Float, BigFloat rounding methods (#12004, thanks @marksiemers)
• Implement rt builtins __ashlti3, __ashrti3 and __lshrti3 for wasm32 (#11948, thanks @lbguilherme)

Specs

• Align Spec::Be, BeClose failure message to other messages (#11946, thanks @jgaskins)

System

• (security) Fix check for null byte in File#tempfile args (#12076, thanks @straight-shoota)
• Add missing SC_PAGESIZE constant for aarch64-darwin (#12037, thanks @carlhoerberg)
• Docs: Add more prominent note about path traversal in File.tempfile (#12077, thanks @straight-shoota)
• Support Enumerable as argument to File.join (#12102, thanks @caspiano)

Runtime

• Mention #value explicitly in Pointer overview. (#12184, thanks @elebow)

Text

• Add specs for String#char_bytesize_at (#11872, thanks @straight-shoota)
• Flush shift state for String#encode (#11993, thanks @HertzDevil)
• Handle invalid bytes in single-byte optimizable Strings correctly (#12108, thanks @HertzDevil)
• Fix: Don't stop on null byte in String#% (#12125, thanks @asterite)
• Add UUID.parse? (#11998, thanks @jgaskins)

Time

• Fix: Better error message for Time.parse! when end of input is reached (#12124, thanks @asterite)

Compiler

• Clean up compiler warning specs (#11916, thanks @HertzDevil)
• Add support for NO_COLOR to Colorize (#11984, thanks @didactic-drunk)
• (performance) Use LLVM's new pass manager when possible (#12116, thanks @asterite)

Macros

• Document Crystal::Macros::Self and Underscore (#12085, thanks @HertzDevil)

Generics

• Allow the empty instantiation NamedTuple() (#12009, thanks @HertzDevil)

Interpreter

• Add missing EXPORT in interpreter spec (#12201, thanks @HertzDevil)
• Handle escaping exceptions in pry (#12211, thanks @asterite)
• Allow some options, and colorize whereami (#12198, thanks @asterite)
• Fix instance var offset of virtual struct (#12189, thanks @asterite)
• Handle explicit return when method type is Nil (#12179, thanks @asterite)
• Crystal::Loader: don't check if file exists, leave that to dlopen (#12207, thanks @asterite)
• Fix call receiver by value from VirtualType struct (#12194, thanks @asterite)
• Clear finished hooks after intepreting (#12174, thanks @asterite)
• Fix FFI bindings for libffi >= 3.4 (#12192, thanks @straight-shoota)
• Fix .class for modules and unions (#12205, thanks @asterite)
• Implement Crystal::Loader for MSVC (#12140, thanks @HertzDevil)
• Fix: cast from virtual metaclass to union (#12163, thanks @asterite)
• Allow inspect vars when inside a block (#12165, thanks @asterite)
• Let pry see closured vars (#12169, thanks @asterite)
• Fix caller (#12182, thanks @asterite)
• Apply shell expansion in ldflags (#12094, thanks @mdwagner)
• Fix expression value of constant assignment in interpreter (#12016, thanks @beta-ziliani)
• Fix: Don't link librt and libdl on GNU systems ([#12038](https://github....

1.4.1

Standard Library

Collection

• Avoid compile-time error on empty NamedTuples. (#12007, thanks @I3oris)

Files

• Add missing fun def for __xstat (#11985, thanks @straight-shoota)

Runtime

• Add pthread link annotations in lib bindings (#12013, thanks @straight-shoota)
• Fix GC typedefs on Windows (#11963, thanks @HertzDevil)

Compiler

Semantic

• Compiler: remove duplicate instance vars once we know them all (#11995, thanks @asterite)

1.4.0

Language

• Add support for Int128 in codegen and macros (#11576, thanks @BlobCodes)
• Support ProcPointers with global path and top-level method references (#11777, thanks @HertzDevil)
• Fix documentation for macros system and run (#11740, thanks @lbguilherme)
• Experimental: better type inference for ivars/cvars (#11812, thanks @asterite)
• Support @[Deprecated] on constants (#11680, thanks @HertzDevil)

Standard Library

• Fix compiler flags with optional arg eating following flags (#11201, thanks @yb66)
• Support GNU style optional arguments in OptionParser (#11546, thanks @HertzDevil)
• Remove some unnecessary link annotations (#11563, thanks @straight-shoota)
• Remove useless assignments (#11774, thanks @IgorPolyakov)
• Use "truthy" and "falsey" in more places in the documentation (#11784, thanks @HertzDevil)
• Add missing code blocks for self in documentation (#11718, thanks @HertzDevil)
• Add support for LLVM 14.0 (#11905, thanks @HertzDevil)
• Fix code examples in doc comments (2022-03) (#11927, thanks @maiha)

Collection

• Remove Iterator.of(Iterator.stop) from implementations (#11613, thanks @asterite)
• Add allow Enumerable arguments for Hash#select and #reject (#11750, thanks @mamantoha)
• Add docs for Hash#reject! (#11691, thanks @wontruefree)
• Add raising method variants Enumerable#find! and #index! (#11566, thanks @yxhuvud)
• (performance) Optimize block-less overloads of BitArray#fill (#11450, thanks @HertzDevil)
• Adds docs for Array#replace (#11682, thanks @wontruefree)
• (performance) Optimize BitArray's counting methods (#11591, thanks @HertzDevil)
• Add some return types to Array, Hash, Set and String (#11822, thanks @asterite)
• Add Hash#update (#11881, thanks @ftarulla)
• Allow Bytes[] to construct an empty Bytes (#11897, thanks @HertzDevil)
• Improve BitArray's constructors (#11898, thanks @HertzDevil)
• Add overload to Enumerable#tally and #tally_by accepting a hash (#11815, thanks @mamantoha)

Crypto

• Add support for Bcrypt algorithm version 2b (#11595, thanks @docelic)

Files

• Fix race condition in chown (#11885, thanks @didactic-drunk)
• Add docs for Dir#each_child (#11688, thanks @wontruefree)
• Add docs for Dir#path (#11689, thanks @wontruefree)
• Support read-write + binary file modes in File.open (#11817, thanks @HertzDevil)
• Add docs for Dir#entries (#11701, thanks @wontruefree)
• Add IO#getb_to_end (#11830, thanks @HertzDevil)
• Fix IO::FileDescriptor#pos giving incorrect position after write (#10865, thanks @didactic-drunk)
• Remove reference to binary file mode in File.open (#11824, thanks @HertzDevil)

Macros

• Add #parse_type (#11126, thanks @Blacksmoke16)

Networking

• (performance) Optimize URI.decode (#11741, thanks @asterite)
• Fix address_spec expectation for Windows Server 2022 (#11794, thanks @straight-shoota)
• Add space_to_plus option in URI::Params everywhere (#11821, thanks @asterite)
• Improve URI::Params#inspect to use hash-like literal (#11880, thanks @straight-shoota)
• Use enums instead of symbols for MIME::Multipart and HTTP::FormData (#11617, thanks @HertzDevil)

Numeric

• (breaking-change) Fix: Hide BigDecimal::ZERO and BigDecimal::TEN (#11820, thanks @lbguilherme)
• (breaking-change) Add support for scientific notation in BigFloat#to_s (#10632, thanks @HertzDevil)
• Fix: Inspect string in error message for number parsing (#11883, thanks @straight-shoota)
• Add docs for Complex#zero? (#11697, thanks @wontruefree)
• Fix E notation parsing in BigDecimal (#9577, thanks @stevegeek)
• (performance) Optimize Integer decoding from bytes (#11796, thanks @carlhoerberg)

Runtime

• Fix interpreter when shared library pthread is missing (#11807, thanks @straight-shoota)
• (performance) Implement Intrinsics.pause for aarch64 (#11742, thanks @lbguilherme, @jgaskins)
• Add crash handler on Windows (#11570, thanks @HertzDevil)
• Add specs for NamedTuple#from (#11816, thanks @straight-shoota)
• Improve error for incompatible generic arguments for WeakRef (#11911, thanks @straight-shoota)
• Add the wasm entrypoint defined in Crystal (#11936, thanks @lbguilherme)

Serialization

• Allow passing instance method or conditional expressions to option ignore_serialize on JSON::Field (#11804, thanks @cyangle)
• Implement Iterator.from_json and #to_json (#10437, thanks @wonderix)

Specs

• Add file and line arguments to it_iterates (#11628, thanks @straight-shoota)
• Remove duplicate word in documentation (#11797, thanks @samueleaton)

System

• (breaking-change) (security) Fix character mappings for Windows path conversions (#11847, thanks @straight-shoota)
• Add fallback for Path.home on Unix (#11544, thanks @HertzDevil)
• Relax ENV.fetch(key, &)'s block restriction (#11779, thanks @HertzDevil)
• Refactor target clauses for system implementations (#11813, thanks @straight-shoota)
• Fix Path support for UNC shares (#11827, thanks @straight-shoota)
• Fix regression for Linux older than 3.17: properly check that getrandom is available (#11953, thanks @lbguilherme)

Text

• Fix ensure PCRE JIT mode is available before running spec (#11533, thanks @Blacksmoke16)
• Add more Colorize overloads and fix docs (#11832, thanks @asterite)
• Refactor Colorize::Mode enum (#11663, thanks @straight-shoota)
• Add some docs for UUID (#11683, thanks @wontruefree)
• Add docs for UUID#urn (#11693, thanks @wontruefree)
• Add docs for String#[] (#11690, thanks @wontruefree)
• Allow explicit usage of libiconv (#11876, thanks @luislavena)
• (breaking-change) Fix: Honour encoding in IO::Memory#to_s (#11875, thanks @straight-shoota)
• Add self return type to UUID constructor methods (#10539, thanks @straight-shoota)
• Fix infinite loop for certain StringPool initial capacities (#11929, thanks @HertzDevil)

Time

• Add examples to `Time::F...

1.3.2

Standard Library

Text

• Fix buffer overflow in String#index (#11747, thanks @asterite, @straight-shoota)

1.3.1

Standard Library

• Remove useless variable declarations in trailing position (#11704, thanks @HertzDevil)

Crypto

• Fix for missing BIO_* functions in OpenSSL < 1.1.0 (#11736, thanks @daliborfilus)

Runtime

• Remove string allocation from GC_set_warn_proc (#11729, thanks @straight-shoota)

Tools

• Doc generator: Fix escape HTML in code span (#11686, thanks @straight-shoota)
• Fix formatter error for ProcLiterals with Union return type (#11709, thanks @HertzDevil)

Other

• Fix typos (#11725, thanks @kianmeng)