1.10.1 (2023-10-13)

Bugfixes

stdlib

IO#gets should have same result regardless of #peek availability (#13882, thanks @compumike)
Support Android API levels 24 - 27 (#13884, thanks @HertzDevil)

Infrastructure

(ci) Fix win.yml (#13876, thanks @straight-shoota)

1.10.0 (2023-10-09)

Features

lang

Add unlimited block unpacking (#11597, thanks @asterite)

stdlib

Add more Colorize::Mode flags (#13745, thanks @HertzDevil)
(collection) Add Hash#put_if_absent (#13590, thanks @HertzDevil)
(collection) Add Set#rehash (#13630, thanks @HertzDevil)
(collection) Add yield key in Hash#transform_values and value in #transform_keys (#13608, thanks @baseballlover723)
(crypto) Upgrade SSL defaults to Mozilla guidelines version 5.7 (#13685, thanks @straight-shoota)
(crypto) [security] Allow OpenSSL clients to choose cipher (#13695, thanks @carlhoerberg)
(files) Add File#rename (#13640, thanks @carlhoerberg)
(llvm) Support LLVM 17 (#13782, thanks @HertzDevil)
(networking) Add overloads for URI::Params.encode with IO parameter (#13798, thanks @jwoertink)
(numeric) Add Complex#to_i128, Complex#to_u128 (#13838, thanks @HertzDevil)
(runtime) Add additional fields to GC:ProfStats (#13734, thanks @carlhoerberg)
(serialization) Support YAML deserialization of 128-bit integers (#13834, thanks @HertzDevil)
(serialization) Support 128-bit integers in JSON::PullParser#read? (#13837, thanks @HertzDevil)
(specs) [breaking] Change spec runner to exit with failure for focus: true (#13653, thanks @straight-shoota)
(text) Add String#byte_index(Char) (#13819, thanks @funny-falcon)
(time) Support Android's system timezone database (#13666, thanks @HertzDevil)

compiler

Experimental: Add Slice.literal for numeric slice constants (#13716, thanks @HertzDevil)

tools

Add tool unreachable (#13783, thanks @straight-shoota)
(dependencies) Add crystal tool dependencies (#13631, thanks @straight-shoota)
(docs-generator) Add CSS for tables (#13822, thanks @nobodywasishere)
(hierarchy) Support generic types in crystal tool hierarchy (#13715, thanks @HertzDevil)
(playground) Update octicons to v19.5.0 (#13738, thanks @GeopJr)

Bugfixes

lang

(macros) Fix missing normalization of macro expressions (and others) (#13709, thanks @asterite)
(macros) Fix block parameter unpacking inside macros (#13813, thanks @HertzDevil)

stdlib

(collection) [breaking] Mark the return type of methods such as Slice#copy_to as Nil (#13774, thanks @erdian718)
(files) Change IO::Buffered#peek's return type to Bytes (#13863, thanks @HertzDevil)
(llvm) Chop git suffix from LibLLVM::VERSION (#13699, thanks @HOMODELUNA)
(macros) Do not add trailing + in TypeNode#id for virtual types (#13708, thanks @HertzDevil)
(numeric) Fix BigDecimal#round for large digit counts in base 10 (#13811, thanks @HertzDevil)
(serialization) Set encoding in XML.parse_html explicitly to UTF-8 (#13705, thanks @straight-shoota)
(serialization) Fix error message when parsing unknown JSON enum value (#13728, thanks @willhbr)
(serialization) Fix YAML scalar type validation error message (#13771, thanks @MistressRemilia)
(serialization) Fix incorrect overflow in UInt64.from_yaml (#13829, thanks @HertzDevil)
(system) Fix Process.new with nilable chdir parameter on Windows (#13768, thanks @straight-shoota)
(system) Fix typo in unistd.cr (#13850, thanks @kojix2)
(text) Fix Char::Reader#each bounds check after block (#13817, thanks @straight-shoota)
(text) Minor fixup for HTML.decode_codepoint (#13843, thanks @straight-shoota)

compiler

[breaking] Remove double .cr.cr extension in require path lookup (#13749, thanks @straight-shoota)
(parser) Fix end location for FunDef (#13789, thanks @straight-shoota)
(semantic) Fix lookup scope for @[Primitive] def's return type (#13658, thanks @HertzDevil)
(semantic) Fix typo in call_error.cr (#13764, thanks @kojix2)

tools

(docs-generator) Fix octicon-link icon color on dark mode (#13670, thanks @GeopJr)
(docs-generator) Allow word breaks between module names in docs (#13827, thanks @nobodywasishere)
(docs-generator) Fix docs dark mode dropdown background on blink (#13840, thanks @GeopJr)
(init) Fix shard crystal version in crystal init (#13730, thanks @xendk)
(hierarchy): Fix byte sizes for Procs inside extern structs (#13711, thanks @HertzDevil)

Performance

stdlib

Optimize IO::Delimited (#11242, thanks @asterite)
(crypto) Use IO::DEFAULT_BUFFER_SIZE in Digest#update (#13635, thanks @carlhoerberg)
(crypto) Fix memory leak in OpenSSL::SSL::Socket#peer_certificate (#13785, thanks @compumike)
(files) Optimize IO#read_string(0) (#13732, thanks @jgaskins)
(files) Avoid double file buffering (#13780, thanks @carlhoerberg)
(llvm) Refactor LLVM.default_target_triple to avoid regex (#13659, thanks @straight-shoota)
(numeric) Pre-allocate Dragonbox cache array (#13649, thanks @HertzDevil)
(runtime) Avoid realloc callstack array when unwinding (#13781, thanks @carlhoerberg)
(time) Optimize the constructors of Time::Span (#13807, thanks @erdian718)

Refactor

stdlib

Do not use nilable Pointers (#13710, thanks @HertzDevil)
(collection) Use Set(T) instead of Hash(T, Bool) (#13611, thanks @HertzDevil)
(concurrency) Use Fiber.inactive inside Fiber#run's ensure block (#13701, thanks @HertzDevil)
(crypto) Use JSON::Serializable in scripts/generate_ssl_server_defaults.cr (#13667, thanks @HertzDevil)
(crypto) Refactor narrow OpenSSL requires for digest implementations (#13818, thanks @straight-shoota)
(networking) [deprecation] Add types to HTTP::StaticFileHandler (#13778, thanks @jkthorne)

compiler

Restrict some boolean properties to Bool in the compiler (#13614, thanks @HertzDevil)

Documentation

stdlib

(crypto) Fix docs for Digest::SHA512 (#13796, thanks @jgaskins)
(files) Document Dir#mkdir, Dir#exists? (#13795, thanks @jkthorne)
(networking) Add documentation for HTTP::Headers#add (#13762, thanks @jkthorne)
(text) Fix typo in regex.cr (#13751, thanks @beta-ziliani)

Specs

stdlib

(numeric) Update specs for Int::Primitive.from_json (#13835, thanks @HertzDevil)
(numeric) Remove overflowing Float#to_u! interpreter primitive specs (#13737, thanks @HertzDevil)
(time) Clear Time::Location cache before .load_android specs (#13718, thanks @HertzDevil)

Infrastructure

Update previous Crystal release - 1.9.2 (#13650, thanks @straight-shoota)
Update distribution-scripts (#13776, thanks @straight-shoota)
make: Add generate_data target for running generator scripts (#13700, thanks @straight-shoota)
Add shell completions for clear_cache (#13636, thanks @straight-shoota)
New changelog format (#13662, thanks @straight-shoota)
Detect developer mode in Windows installer (#13681, thanks @HertzDevil)
Update PGP key link (#13754, thanks @syeopite)
Fix log format in update-distribution-scripts.sh (#13777, thanks @straight-shoota)
(ci) Trigger windows release jobs on tag (#13683, thanks @straight-shoota)
(ci) Update GH Actions (#13748, thanks @renovate)
(ci) Refactor crystal_bootstrap_version (#13845, thanks @straight-shoota)

1.9.2 (2023-07-19)

Bugfixes

stdlib

(runtime) Revert "Add default interrupt handlers" (#13673, thanks @straight-shoota)

1.9.1 (2023-07-17)

Bugfixes

stdlib

(serialization) Fix Serializable with converter parsing null value (#13656, thanks @straight-shoota)

compiler

(codegen) Fix generated cc command for cross compile (#13661, thanks @fnordfish)

1.9.0 (2023-07-11)

Breaking changes

stdlib

(numeric) Handle NaNs when comparing Big* numbers against Float (#13293, #13294, #13350, #13554, thanks @HertzDevil)
(llvm) Remove most LLVM::DIBuilder functions from llvm_ext.cc (#13448, thanks @HertzDevil)

Features

lang

(macros) Add warning macro (#13262, thanks @Blacksmoke16)
(macros) Add print macro (#13336, thanks @jkthorne)

stdlib

(collection) Add Enumerable#in_slices_of (#13108, thanks @pricelessrabbit)
(collection) Add support for dash separator to Enum.parse (#13508, thanks @straight-shoota)
(collection) Add Enum#to_i128 and #to_u128 (#13576, thanks @meatball133)
(collection) Add Enumerable#partition overload with type filter (#13572, thanks @baseballlover723)
(concurrency) Support asynchronous IO.pipe on Windows (#13362, thanks @HertzDevil)
(files) [deprecation] Add File::MatchOptions to control Dir.glob's behavior (#13550, thanks @HertzDevil)
(networking) Implement Socket#reuse_port on Windows (#13326, thanks @stakach)
(networking) Add multicast support to UDPSocket on Windows (#13325, thanks @stakach)
(networking) HTTP Server should allow custom concurrency models (#13428, thanks @stakach)
(networking) Add Socket::IPaddress.v4, .v6, .v4_mapped_v6 (#13422, thanks @HertzDevil)
(networking) Add URI::Params#merge, #merge! and URI#update_query_params (#13415, thanks @skinnyjames)
(networking) Support Unix sockets on Windows (#13493, thanks @HertzDevil)
(networking) Add HTTP::Request#form_params (#13418, thanks @threez)
(numeric) Add BigDecimal#% (#13255, thanks @MattAlp)
(numeric) Improve conversions from BigInt to Int::Primitive (#13562, thanks @HertzDevil)
(runtime) Print error if unable to delay-load DLL on Windows (#13475, thanks @HertzDevil)
(runtime) Add default interrupt handlers (#13568, thanks @straight-shoota) ⚠️ This was reverted in 1.9.2
(serialization) Add ignore_serialize for YAML::Serializable (#13556, thanks @meatball133)
(specs) Add a testcase line number to the output of JUnitFormatter (#13468, thanks @nobodywasishere)
(specs) Publish the assert_prints spec helper (#13599, thanks @HertzDevil)
(system) Implement Process.exec on Windows (#13374, thanks @HertzDevil)
(system) Add File::BadExecutableError (#13491, thanks @HertzDevil)
(text) Add inspection of Regex options support (#13354, thanks @straight-shoota)
(text) Add Regex.literal (#13339, thanks @straight-shoota)
(text) Implement #match! for Regex (#13285, thanks @devnote-dev)
(text) Add parameters for Regex::MatchOptions to matching methods (#13353, thanks @straight-shoota)
(text) Add Char#titlecase for correct mixed-case transformations (#13539, thanks @HertzDevil)
(time) Add start_day parameter to Time#at_beginning_of_week (#13446, thanks @DanielGilchrist)
(time) Map IANA time zone identifiers to Windows time zones (#13517, thanks @HertzDevil)
(time) Add Time.unix_ns and #to_unix_ns (#13359, thanks @garymardell)

compiler

Add message about non-release mode to crystal --version (#13254, thanks @will)
Respect %CC% on Windows (#13376, thanks @HertzDevil)
Support DLL delay-loading on Windows (#13436, thanks @HertzDevil)
Support -static and -dynamic .lib suffixes on Windows (#13473, #13645, thanks @HertzDevil)
Make compiler aware of output extension when building programs (#13370, thanks @HertzDevil)
Support CRYSTAL_LIBRARY_RPATH for adding dynamic library lookup paths (#13499, thanks @HertzDevil)
Add compiler command crystal clear_cache (#13553, thanks @baseballlover723)
(codegen) Support LLVM 16 (#13181, thanks @HertzDevil)
(semantic) Correctly ignore nested deprecation warnings (#13513, thanks @straight-shoota)

tools

(docs-generator) Add dark mode to docs (#13512, thanks @GeopJr)
(docs-generator) Add mobile support to docs (#13515, thanks @GeopJr)
(formatter) [security] Formatter: escape bi-directional control characters within strings (#13067, thanks @HertzDevil)

Bugfixes

stdlib

(collection) Fix Array#flatten to discard Iterator::Stop (#13388, thanks @straight-shoota)
(collection) Fix return type of Iterator#chunk and Enumerable#chunks without Drop (#13506, thanks @straight-shoota)
(collection) Fix Iterator#with_index(offset) with non-Int32 offset (#13612, thanks @HertzDevil)
(concurrency) Fix preview_mt infinite loop on Windows (#13419, thanks @HertzDevil)
(concurrency) Fix Atomic#max and #min for signed enums (#13524, thanks @HertzDevil)
(concurrency) Fix timeout events getting lost on Windows (#13525, thanks @HertzDevil)
(concurrency) Support Atomic(T)#compare_and_set when T is a reference union (#13565, thanks @HertzDevil)
(files) Fix Dir#info on Windows (#13395, thanks @HertzDevil)
(files) Windows: open standard streams in binary mode (#13397, thanks @HertzDevil)
(files) Fix File.info(File::NULL) on Windows (#13421, thanks @HertzDevil)
(files) Allow File.delete to remove read-only files on Windows (#13462, thanks @HertzDevil)
(files) Make fcntl defined on all platforms (#13495, thanks @HertzDevil)
(files) Allow Dir.delete to remove read-only directories on Windows (#13626, thanks @HertzDevil)
(files) Use current directory's root for Dir.glob("/...") on Windows (#13628, thanks @HertzDevil)
(llvm) Fix LLVM.default_target_triple to normalize aarch64 darwin target (#13597, thanks @straight-shoota)
(log) Fix Log::Builder append BroadcastBackend to itself (#13405, thanks @straight-shoota)
(macros) Fix error message for calling record macro with kwargs (#13367, thanks @a-alhusaini)
(networking) Remove double URL escape in HTTP::Server::Response.redirect (#13321, thanks @threez)
(networking) Fix WebSocket capitalization in docs (#13331, thanks @joshrickard)
(networking) Fix TCPSocket#tcp_keepalive_idle on Windows (#13364, thanks @HertzDevil)
(networking) Fix client-side TCPSocket#remote_address on Windows (#13363, thanks @HertzDevil)
(networking) Parse IP addresses in Crystal instead of using LibC.inet_pton (#13463, thanks @HertzDevil)
(networking) Windows: do not set SO_EXCLUSIVEADDRUSE if SO_REUSEADDR already present (#13477, thanks @HertzDevil)
(networking) Implement Socket::IPAddress#to_s with Crystal instead of LibC.inet_ntop (#13483, thanks @HertzDevil)
(networking) Ensure Socket checks WinError.wsa_value on Windows, not Errno.value (#13494, thanks @HertzDevil)
(numeric) Disallow creating Big* numbers from infinity or NaN (#13351, thanks @HertzDevil)
(numeric) Fix LibM.hypotf and ldexpf link errors on Windows (#13485, thanks @HertzDevil)
(numeric) Make comparisons between BigRational and BigFloat exact (#13538, thanks @HertzDevil)
(runtime) Fix size of type_id in Object.set_crystal_type_id (#13338, thanks @straight-shoota)
(runtime) Allow /SUBSYSTEM:WINDOWS on Windows (#13332, thanks @HertzDevil)
(runtime) Use correct format strings for crash stack traces (#13408, thanks @HertzDevil)
(serialization) Fix handling of quoted boolean values in YAML::Any (#13546, thanks @willhbr)
(serialization) Fix ambiguous call with untyped int literal in {JSON,YAML}::Any.new (#13618, thanks @straight-shoota)
(system) Fix for Process: ensure chdir is a string (#13503, thanks @devnote-dev)
(system) Windows: drop internal environment variables from ENV (#13570, thanks @HertzDevil)
(text) Fix String#underscore with multi-character downcasing (#13540, thanks @HertzDevil)
(text) Do not attempt downcasing first when case-folding a Char (#13542, thanks @HertzDevil)
(text) Handle case folding in String#compare correctly (#13532, thanks @HertzDevil)
(time) Update list of Windows time zones (#13501, thanks @HertzDevil)
(time) Fix local timezones without DST on Windows (#13516, thanks @HertzDevil)
(time) Fix leap second handling for timezone information files (#13600, thanks @HertzDevil)

compiler

More accurate macro errors (#13260, thanks @Blacksmoke16)
Do not drop /LIBPATH from Windows linker command (#13530, thanks @HertzDevil)
Fix instantiated method signatures in error traces (#13580, thanks @HertzDevil)
Place --emit files back in current directory when running source (#13604, thanks @HertzDevil)
(generics) Fix free variable matching of bound numeric values (#13606, thanks @HertzDevil)
(parser) Don't skip the token immediately after lib name (#13407, thanks @FnControlOption)
(parser) Allow newline after hash rocket (#13460, thanks @FnControlOption)
(parser) Add missing locations of various AST nodes (#13452, thanks @FnControlOption)
(parser) Fix AST location of call name in operator assignment (#13456, thanks @FnControlOption)

tools

Display Bool's size as 1 byte in crystal tool hierarchy, not 0 (#13588, thanks @HertzDevil)

Performance

stdlib

(collection) Optimize Array#concat(Indexable) (#13280, thanks @HertzDevil)
(collection) Optimize Deque#concat(Indexable) (#13283, thanks @HertzDevil)
(concurrency) Support synchronous socket operations on Windows (#13414, thanks @HertzDevil)
(numeric) Optimize BigInt.new(Int::Primitive) (#13303, thanks @HertzDevil)
(numeric) Optimize BigRational#<=>(Int) (#13555, thanks @HertzDevil)
(text) Improve HTML.escape(string, io) performance (#13139, thanks @BlobCodes)
(text) Refactor String.ends_with? to use MatchOptions::ENDANCHORED (#13551, thanks @straight-shoota)

tools

(docs-generator) Optimize Doc::Method#compute_doc_info to avoid duplicate regex (#13324, thanks @straight-shoota)

Refactor

stdlib

Use sentence case for all standard library exceptions (#13400, thanks @HertzDevil)
(collection) Refactor code for Deque buffer resizing (#13257, thanks @HertzDevil)
(concurrency) Clean up unused code for Windows event loop (#13424, thanks @HertzDevil)
(files) Do not reopen current file in File#utime on Windows (#13625, thanks @HertzDevil)
(files) Do not reopen current file in File#chmod on Windows (#13627, thanks @HertzDevil)
(llvm) [deprecation] Deprecate LLVM::Module#write_bitcode_with_summary_to_file (#13488, thanks @HertzDevil)
(llvm) [deprecation] Deprecate LLVM's legacy pass manager (#13579, thanks @HertzDevil)
(llvm) Remove two outdated LLVM fun bindings (#13438, thanks @HertzDevil)
(llvm) Split LLVM::Builder overloads that don't take an operand bundle (#13564, thanks @HertzDevil)
(networking) Move more Socket methods to Crystal::System::Socket (#13346, thanks @HertzDevil)
(numeric) Use Int#bit_length instead of Math.log2 followed by #to_i (#13440, thanks @HertzDevil)
(numeric) Use GMP's functions for Float-to-BigRational conversion (#13352, thanks @HertzDevil)
(serialization) Simplify implementation of Serializable#initialize (#13433, thanks @straight-shoota)
(serialization) Use per-thread libxml2 global state on Windows (#13486, thanks @HertzDevil)
(text) Refactor String header layout reflection (#13335, thanks @straight-shoota)
(text) Refactor symbol quoting into Symbol.quote_for_named_argument (#13595, thanks @straight-shoota)

compiler

(parser) Crystal lexer cleanup (#13270, thanks @FnControlOption)
(parser) Don't use symbols in Crystal::Lexer#check_macro_opening_keyword (#13277, thanks @HertzDevil)

Documentation

stdlib

(concurrency) Fix operators in Atomic#add, #sub, #max, #min (#13523, thanks @HertzDevil)
(concurrency) Hide Crystal::LibEvent from public docs (#13624, thanks @HertzDevil)
(macros) Fix doc for return type of Crystal::Macros::Case#else (#13385, thanks @HertzDevil)
(system) Reference Process.executable_path at PROGRAM_NAME (#13434, thanks @straight-shoota)
(text) Add note about graphemes in String#reverse (#13536, thanks @noraj)

compiler

Add manual entry for clear_cache command (#13621, thanks @straight-shoota)

other

Implemented ',' command in brainfuck sample program (#13559, thanks @ZeroPlayerRodent)

Specs

stdlib

(files) Fix IO::FileDescriptor's STDIN mode spec (#13365, thanks @HertzDevil)
(files) Fix file permission specs on Windows (#13465, thanks @HertzDevil)
(files) Add slow tag to stdlib specs that compile a program (#13498, thanks @straight-shoota)
(serialization) Refactor JSON, YAML specs for #13337 for simplicity (#13358, thanks @straight-shoota)
(system) Disable Process.pgid spec on Windows (#13476, thanks @HertzDevil)
(text) Reorder and enhance specs for String.new(&) (#13333, thanks @straight-shoota)
(text) Remove incorrect CRYSTAL in comments (#13500, thanks @HertzDevil)
(time) Skip Time::Location.load_local spec if unable to change time zone (#13355, thanks @HertzDevil)

compiler

(interpreter) Regenerate spec/interpreter_std_spec.cr (#13310, thanks @cyangle)

Infrastructure

Update changelog with previous Crystal releases (#13322, #13373, #13450, thanks @straight-shoota)
Merge release/1.8 (#13361, #13449, thanks @straight-shoota)
PR template: adding a line about force-pushes (#12794, thanks @beta-ziliani)
Less verbose output in Makefile.win (#13383, thanks @HertzDevil)
Update distribution-scripts (#13457, thanks @Blacksmoke16)
Add .gitattributes to repository (#13479, thanks @HertzDevil)
Update shell.nix to nixpkgs-23.05 (#13571, thanks @HertzDevil)
Document target variable in Makefiles (#13384, thanks @HertzDevil)
Fix bin\crystal.ps1 writing to standard error stream (#13372, thanks @HertzDevil)
Avoid calling realpath of parent crystal in wrapper script (#13596, thanks @straight-shoota)
(ci) Show PCRE/PCRE2 configuration on CI (#13307, thanks @HertzDevil)
(ci) Update cachix/install-nix-action action (#13531, #13586, thanks @renovate)
(ci) Restrict Windows CI jobs for installer packages to release branches (#13623, thanks @HertzDevil)
(ci) Build samples on Windows CI (#13334, thanks @HertzDevil)
(ci) Do not cancel in progress CI jobs for master branch (#13393, thanks @Blacksmoke16)
(ci) Upgrade Windows CI to LLVM 16 (#13469, thanks @HertzDevil)
(ci) Distribute DLLs and import libraries on Windows (#13543, thanks @HertzDevil)
(ci) Build Windows portable and installer packages on CI (#13578, thanks @HertzDevil)
(ci) Split Windows library build scripts from CI (#13478, thanks @HertzDevil)

1.8.2 (2023-05-08)

Standard Library

Collection

Fix codegen bug with Iterator::ChainIterator (#13412, thanks @straight-shoota)

Log

Fix Log::Metadata#dup crash with 2+ entries (#13369, thanks @HertzDevil)

Serialization

Fixup for JSON::Serializable on certain recursively defined types (#13430, thanks @kostya)

Text

Fix String#scan with empty Regex match at multibyte char (#13387, thanks @HertzDevil)
(performance) Check subject UTF-8 validity just once for String#gsub, #scan, #split (#13406, thanks @HertzDevil)

Compiler

Codegen

Always use 0 for offset of StaticArray's @buffer (#13319, thanks @HertzDevil)

Other

Backport bugfixes to release/1.8 for release 1.8.2 (#3435, thanks @straight-shoota)

1.8.1 (2023-04-20)

Standard Library

Serialization

Fix JSON::Serializable on certain recursively defined types (#13344, thanks @HertzDevil)

Text

Fix String#gsub with empty match at multibyte char (#13342, thanks @straight-shoota)
Fix PCRE2 Regex with more than 127 named capture groups (#13349, thanks @HertzDevil)

1.8.0 (2023-04-14)

Language

The compiler uses PCRE2 to validate regex literals (#13084, thanks @straight-shoota)
Fill docs for TupleLiteral (#12927, thanks @straight-shoota)
Allow namespaced Paths as type names for lib (#12903, thanks @HertzDevil)

Standard Library

Fix SyntaxHighlighter::HTML to escape identifier values (#13212, thanks @straight-shoota)
Add workaround for Value#not_nil! copying the receiver (#13264, thanks @HertzDevil)
Fix Pointer#copy_to overflow on unsigned size and different target type (#13269, thanks @HertzDevil)
Docs: Added note about imports where necessary (#13026, #13066, thanks @Tamnac, @straight-shoota)
Suppress compiler output in compile_file spec helper (#13228, thanks @straight-shoota)
Define equality for Process::Status and OAuth::RequestToken (#13014, thanks @HertzDevil)
Fix some Linux glibc bindings (#13242, #13249, thanks @ysbaddaden, @HertzDevil)

Collection

(breaking-change) Fix Enum#includes? to require all bits set (#13229, thanks @straight-shoota)
(breaking-change) Deprecate Enum.flags (#12900, thanks @straight-shoota)
(breaking-change) Remove compile-time error for Range#size, #each, #sample (#13278, thanks @straight-shoota)
(breaking-change) Docs: Require all Indexables to be stable (#13061, thanks @HertzDevil)
Add Enum.[] convenience constructor (#12900, thanks @straight-shoota)
Rename internal Iterator::Slice type to not conflict with ::Slice (#12983, thanks @Blacksmoke16)
Fix Array#replace on shifted arrays (#13256, thanks @HertzDevil)
Add Tuple#to_static_array (#12930, thanks @straight-shoota)
Add Enum#inspect (#13004, thanks @straight-shoota)
Add Slice#+(Slice) and Slice.join (#12081, thanks @HertzDevil)
Add Enumerable#min(count) and #max(count) (#13057, thanks @nthiad)
Fix Array(T)#[]=(Int, Int, Array(T)) on shifted arrays (#13275, thanks @HertzDevil)

Concurrency

Fix: Make sure to dup Array in Channel.select_impl (#12827, #12962, thanks @straight-shoota)
Add memory barriers on lock/unlock of SpinLock (#13050, thanks @bcardiff)
(performance) Avoid Array allocation in Channel.select(Tuple) (#12960, thanks @straight-shoota)

Files

(breaking-change) Deprecate Termios (#12940, thanks @HertzDevil)
(breaking-change) Windows: make File.delete remove symlink directories, not Dir.delete (#13224, thanks @HertzDevil)
Leverage fileapi for opening files on windows (#13178, thanks @Blacksmoke16)
Windows: fix error condition when File.open fails (#13235, thanks @HertzDevil)
Skip eacces spec for superuser (#13227, thanks @straight-shoota)
Improve File.symlink on Windows (#13141, thanks @HertzDevil)
Implement File.readlink on Windows (#13195, thanks @HertzDevil)

LLVM

(breaking-change) Drop support for LLVM < 8 (#12906, thanks @straight-shoota)
(breaking-change) Support LLVM 15 (#13173, thanks @HertzDevil)
Error when find-llvm-config is unsuccessful (#13045, thanks @straight-shoota)
Remove LibLLVM.has_constant?(:AttributeRef) checks (#13162, thanks @HertzDevil)
Refactor LLVM::Attribute#each_kind to use Enum#each (#13234, thanks @straight-shoota)

Networking

Fix socket specs when network not available (#12961, thanks @straight-shoota)
Fix wrong default address when binding sockets (#13006, thanks @etra0)
Clarify WebSocket documentation (#13096, thanks @j8r)
Add Socket::IPAddress#link_local? (#13204, thanks @GeopJr)
Clean up back\slash.txt in HTTP::StaticFileHandler specs (#12984, thanks @HertzDevil)
Add MIME::Multipart.parse(HTTP::Client::Response, &) (#12890, thanks @straight-shoota)
Replace LibC.ntohs and htons with native code (#13027, thanks @HertzDevil)
Add OAuth2::Client#make_token_request returning HTTP response (#12921, thanks @cyangle)
Use exhaustive case in HTTP::WebSocket#run (#13097, thanks @j8r)
Increase time drift for HTTP::StaticFileHandler's gzip check (#13138, thanks @HertzDevil)
OpenSSL: use Windows' system root certificate store (#13187, thanks @HertzDevil)
Handle Range requests in HTTP::StaticFileHandler (#12886, thanks @jgaskins, @straight-shoota)
Skip hostname spec if hostname command fails (#12987, thanks @Blacksmoke16)
Fix Socket#tty? to false on Windows (#13175, thanks @Blacksmoke16)
Fix HTTP::Server::Response#reset for status_message (#13282, thanks @straight-shoota)

Numeric

Define Math.pw2ceil for all integer types (#13127, thanks @HertzDevil)
Workaround for more Int128-and-float methods on Windows with LLVM 14+ (#13218, thanks @HertzDevil)
Fix Int128-and-float conversion overflow checks on Windows LLVM 14+ (#13222, thanks @HertzDevil)
Add Char.to_i128 and .to_u128 (#12958, thanks @meatball133)
Docs: Add references to Number collection convenience constructors (#13020, thanks @straight-shoota)
Docs: Fix examples for #byte_swap with different int types (#13154, #13180, thanks @pan, @Blacksmoke16)
Make BigRational.new(BigFloat) exact (#13295, thanks @HertzDevil)

Runtime

Increase timeout for slow specs (#13043, thanks @straight-shoota)
Use Crystal::System.print_error instead of LibC.printf (#13161, thanks @HertzDevil)
Windows: detect stack overflows on non-main Fibers (#13220, thanks @HertzDevil)
Add missing require for Crystal::ThreadLocalValue (#13092, thanks @Sija)

Serialization

Remove obsolete error handling in XPathContext (#13038, thanks @straight-shoota)
Fix JSON, YAML use_*_discriminator for recursive Serializable::Strict types (#13238, thanks @HertzDevil)
Add more specs for YAML::Any#[] and #[]? (#11646, thanks @straight-shoota)
Add from_json for 128-bit integers (#13041, thanks @straight-shoota)
Reduce JSON, YAML serializable test types (#13042, thanks @straight-shoota)

Specs

Format spec results with pretty inspect (#11635, thanks @JamesGood626)
Spec: Add --color option to spec runner (#12932, thanks @straight-shoota)
Add Spec::Item#all_tags (#12915, thanks @compumike)

System

(breaking-change) Add full stub for Windows signals (#13131, thanks @HertzDevil)
(breaking-change) Deprecate and internalize Process.fork (#12934, thanks @straight-shoota)
Fix Process spec to wait on started processes (#12941, thanks @straight-shoota)
Drop privileges in chroot spec (#13226, thanks @straight-shoota)
Drop deprecated from_winerror overload for flock_* (#13039, thanks @HertzDevil)
Add Process.on_interrupt (#13034, thanks @HertzDevil)
Add Process::Status#to_s and #inspect (#13044, thanks @straight-shoota)
Add graceful parameter to Process#terminate (#13070, thanks @HertzDevil)
Add Process::ExitReason and Process::Status#exit_reason (#13052, thanks @HertzDevil)
Implement File.tempfile in Crystal (#12111, thanks @straight-shoota)
System::User#name: Fall back to #username if unavailable (#13137, thanks @HertzDevil)
Implement Process.ppid on Windows (#13140, thanks @HertzDevil)
AArch64 Android support (#13065, thanks @HertzDevil)
Windows 7 support (#11505, thanks @konovod)

Text

(breaking-change) Fix PCRE crashing on invalid UTF-8 (#13240, #13311, #13313, thanks @straight-shoota)
(breaking-change) Switch default regex engine to PCRE2 (#12978, thanks @straight-shoota)
(breaking-change) Add more members to Regex::Options (#13223, thanks @straight-shoota)
(breaking-change) Add Regex::MatchOptions (#13248, thanks @straight-shoota)
Fix PCRE2 implementation and tests (#13105, thanks @straight-shoota)
Remove pending spec for Path#drive with IPv6 UNC host names (#13190, thanks @HertzDevil)
Remove Regex::PCRE2#finalize redefinition (#13309, thanks @HertzDevil)
Clarify behavior of strings with invalid UTF-8 byte sequences (#13314, thanks @HertzDevil)
Refer to PCRE2 in Regex's summary (#13318, thanks @HertzDevil)

Compiler

Escape filenames when running crystal spec with multiple files (#12929, thanks @HertzDevil)
Handle ARM64 MSVC paths when cross-compiling on Windows (#13073, thanks @HertzDevil)
Use relative paths to vendored shards" (#13315, thanks @straight-shoota)

Debugger

Always use 0 for offsets of lib / extern union members (#13305, thanks @HertzDevil)

Codegen

(breaking-change) Support LLVM 15 (#13173, thanks @HertzDevil)
Remove obsolete functions from llvm_ext.cc (#13177, thanks @HertzDevil)

Generics

Fix type names for generic instances with empty splat type vars (#13189, thanks @HertzDevil)

Interpreter

Fix: Interpreter value_to_bool for module, generic module and generic module metaclass (#12920, thanks @asterite)
Fix redundant cast in interpreter (#12996, thanks @asterite)
Dynamic library loader: search in -L directories before default ones (#13069, thanks @HertzDevil)
Simplify expectation of loader spec error messages (#12858, thanks @straight-shoota)
Add support for 128-bit literals in the interpreter (#12859, thanks @straight-shoota)
Fix interpreter value_to_bool for NoReturn (#13290, thanks @straight-shoota)

Parser

Fix x @y and x @@y in def parameters when y is reserved (#12922, thanks @HertzDevil)
Disallow empty exponents in number literals (#12910, thanks @HertzDevil)
Stricter checks for multiple assignment syntax (#12919, thanks @HertzDevil)

Semantic

Compiler: type declaration with initial value gets the value's type (#13025, thanks @asterite)
Stricter checks for enum definitions (#12945, thanks @HertzDevil)
Fix error handling in macro system method when execution fails (#12893, thanks @straight-shoota)
Add comment for LiteralExpander select (#12926, thanks @straight-shoota)
Improve locations of some AST nodes (#12933, thanks @straight-shoota)
Refactor SemanticVisitor tighter rescue scope in Require visitor (#12887, thanks @straight-shoota)
Add specs for regex literal expansion (#13253, thanks @straight-shoota)

Tools

Fix Crystal tool cursor parsing for filenames containing : (#13129, thanks @HertzDevil)

Formatter

Formatter: fix end indent after comment inside begin (#12994, thanks @asterite)
Parser: remove obsolete handling of else inside lib struct (#13028, thanks @HertzDevil)
Fix formatter empty array literal with comment on extra line (#12907, thanks @straight-shoota)
Fix formatter comment on extra line at end of method args (#12908, thanks @straight-shoota)
Fix formatter not merge consecutive but separated comment lines (#12909, thanks @straight-shoota)
Formatter: add (&) to param-less yielding defs before comment line (#13126, thanks @HertzDevil)
Formatter: add & to yielding methods without a block parameter (#12951, thanks @HertzDevil)
Formatter: Add feature flag for method_signature_yield (#13215, thanks @straight-shoota)
Macro interpolation: add & to yielding Defs without a block parameter (#12952, thanks @HertzDevil)

Infrastructure

Fix bin/crystal print no error message when crystal is missing (#12981, thanks @straight-shoota)
Prevent infinitely recursive wrapper script (#11712, thanks @ThunderKey)
Changelog helper: Report error from HTTP request (#13011, thanks @straight-shoota)
Fix wrapper script to handle CRYSTAL variable pointing to itself (#13032, thanks @straight-shoota)
Propagate exit code correctly in Windows wrapper batch script (#13048, thanks @HertzDevil)
Remove __declspec(dllimport) from Windows libiconv build (#13219, thanks @HertzDevil)
Update previous Crystal release - 1.7.0 (#12925, thanks @straight-shoota)
[CI] Remove verbose=1 in test_llvm (#12931, thanks @straight-shoota)
Missing quotes in Wrapper Script (#12955, thanks @stellarpower)
Makefile: refactor test recipe (#12979, thanks @straight-shoota)
Merge release branch for 1.7 into master (#12998, thanks @straight-shoota)
Update previous Crystal release - 1.7.2 (#13001, thanks @straight-shoota)
Update distribution-scripts (#13051, #13068, #13188, #13213, #13298, thanks @straight-shoota)
[CI] Use Ubuntu 22.04 base image for LLVM tests (#13035, thanks @straight-shoota)
Add instructions for other repos to pre-commit hook (#10535, thanks @straight-shoota)
Makefile: Add ./scripts to format recipe (#13064, thanks @straight-shoota)
Crystal wrapper script enhancements (#12959, thanks @j8r)
Fix sed command in scripts/update-distribution-scripts.cr (#13071, thanks @straight-shoota)
Update GH Actions (#13075, #13132, thanks @renovate)
CI: Enable testing with libpcre2 on wasm32 (#13109, thanks @lbguilherme)
Build the compiler with PCRE2 (#13084, #13133, thanks @straight-shoota)
Prefer matching llvm-config in find-llvm-config (#13087, thanks @straight-shoota)
(performance) Run compiler specs in release mode (#13122, thanks @straight-shoota)
[CI] Increase no_output_timeout on circleci (#13151, thanks @straight-shoota)
Update NOTICE.md (#13159, thanks @HertzDevil)
Merge release/1.7@1.7.3 (#13168, thanks @straight-shoota)
[CI] Cancel in-progress jobs when another commit is pushed (#13179, thanks @Blacksmoke16)
Mute shell comments in Makefile (#13201, thanks @straight-shoota)
Update previous Crystal release - 1.7.3 (#13167, thanks @straight-shoota)
[CI] Remove cross-compiliation on Windows (#13207, thanks @straight-shoota)
[CI] Increase no_output_timeout on circleci (cont.) (#13185, thanks @straight-shoota)
[CI] Update Windows job to LLVM 15 (#13208, thanks @straight-shoota)
Clean up .gitignore (#13241, thanks @straight-shoota)
[CI] Extract LLVM tests in separate workflow (#13246, thanks @straight-shoota)
[CI] Extract interpreter workflow and split std_spec execution (#13267, thanks @straight-shoota)
Avoid test.cr in root of repo conflicting with parser warning specs (#13259, thanks @Blacksmoke16)
Fix bin/crystal in symlink working directory (#13281, thanks @straight-shoota)
Fix bin/crystal when no global crystal command is installed (#13286, thanks @straight-shoota)
Makefile: Add interpreter_spec (#13251, thanks @straight-shoota)
Makefile: Add all target as default before including Makfile.local (#13276, thanks @straight-shoota)
Update shards 0.17.3 (#13296, thanks @straight-shoota)

Other

Do not match expectations outside specs (#13079, thanks @HertzDevil)
Enable or fix specs that already work on Windows (#13186, thanks @HertzDevil)

1.7.3

Standard Library

Text

Do not use @[ThreadLocal] for PCRE2's JIT stack (#13056, thanks @HertzDevil)
Fix libpcre2 bindings with arch-dependent types (SizeT) (#13088, thanks @straight-shoota)
Fix libpcre2 bindings function pointers (#13090, thanks @straight-shoota)
Fix PCRE2 do not allocate JIT stack if unavailable (#13100, thanks @straight-shoota)
Backport PCRE2 fixes to 1.7 (#13136, thanks @straight-shoota)
Fix MatchData#[] named capture with identical prefix (#13147, thanks @straight-shoota)
Fix Regex::Option behaviour for unnamed members (#13155, thanks @straight-shoota)
(performance) Improve PCRE2 match performance for JIT and interpreted (#13146, thanks @straight-shoota)

Compiler

Generics

Explicitly treat unbound type vars in generic class methods as free variables (#13125, thanks @HertzDevil)

Other

[CI] Fix add PCRE2 to GHA cache for win job (#13089, thanks @straight-shoota)
[CI] Pin use_pcre in build environments where PCRE2 is not yet available (#13102, thanks @straight-shoota)

1.7.2 (2023-01-23)

Standard Library

Runtime

Fix: Add Nil return type restrictions to load_debug_info (#12992, thanks @straight-shoota)

Compiler

Codegen

Add error handling to compiler when linker is unavailable (#12899, thanks @straight-shoota)

Parser

Revert "Parser: Fix restrict grammar for name and supertype in type def (#12622)" (#12977, thanks @straight-shoota)

Other

Update VERSION to 1.7.2-dev (#12993, thanks @straight-shoota)

1.7.1 (2023-01-17)

Tools

Playground

Fix baked-in path in playground to resolve at runtime (#12948, thanks @straight-shoota)

Other

Update VERSION to 1.7.1-dev (#12950, thanks @straight-shoota)

1.7.0 (2023-01-09)

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, thanks @straight-shoota)
Add missing positive spec for Regex#match with option (#12804, thanks @straight-shoota)
Replace if !blank? with unless blank? (#12800, thanks @vlazar)
Add references between String equality, comparison methods (#10531, thanks @straight-shoota)
Extract internal Regex API for PCRE backend (#12802, thanks @straight-shoota)
Implement Regex engine on PCRE2 (#12856, #12866, #12847, thanks @straight-shoota, thanks @HertzDevil)
Add missing overloads for String#byte_slice (#12809, thanks @straight-shoota)

Compiler

Improve error message when there are extra types (#12734, thanks @asterite)
Handle triples without libc (#12594, thanks @GeopJr)
Remove unused Program#cache_dir property (#12669, thanks @straight-shoota)
Fix: Unwrap nested errors in error handler for Crystal::Error (#12888, thanks @straight-shoota)

Codegen

Add missing specs for ->var.foo semantics with assignments (#9419, thanks @makenowjust)
Use File#flock_exclusive on win32 in compiler (#12876, thanks @straight-shoota)

Generics

Redefine defs when constant and number in generic arguments are equal (#12785, thanks @HertzDevil)
Fix restriction of numeral generic argument against non-free variable Path (#12784, thanks @HertzDevil)

Interpreter

Interpreter: fix class var initializer that needs an upcast (#12635, thanks @asterite)
Reverting #12405 Compiler: don't always use Array for node dependencies and observers (#12849, thanks @beta-ziliani)
Match Nix loader errors in compiler spec (#12852, thanks @bcardiff)
Interpreter reply (#12738, thanks @I3oris)

Parser

(breaking-change) Parser: Fix restrict grammar for name and supertype in type def (#12622, thanks @caspiano)
Lexer: fix global capture vars ending with zero, e.g. $10? (#12701, thanks @FnControlOption)
Lexer: allow regex after CRLF (#12713, thanks @FnControlOption)
Assignment to global regex match data is not allowed (#12714, thanks @caspiano)
Error when declaring a constant within another constant declaration (#12566, thanks @caspiano)
Fix calls with do-end blocks within index operators (#12824, thanks @caspiano)
Remove oct/bin floating point literals (#12687, thanks @BlobCodes)
Parser: fix wrong/missing locations of various AST nodes (#11798, thanks @FnControlOption)
Refactor: use helper method instead of duplicate code in lexer (#12590, thanks @straight-shoota)
Simplify sequential character checks in Crystal lexer (#12699, thanks @caspiano)
Lexer: delete redundant scan_ident calls (#12691, thanks @FnControlOption)
Rename Def#yields to Def#block_arity (#12833, thanks @straight-shoota)
Fix warning on space before colon with anonymous block arg (#12869, thanks @straight-shoota)
Warn on missing space before colon in type declaration/restriction (#12740, thanks @straight-shoota)

Semantic

Fix: Do not merge union types in truthy filter (#12752, thanks @straight-shoota)
Fix crash when using sizeof, instance_sizeof, or offsetof as a type arg (#12577, thanks @keidax)
Resolve type of free variable on block return type mismatch (#12754, thanks @caspiano)
Order _ after any other Path when comparing overloads (#12855, thanks @HertzDevil)
[Experimental] Compiler: try to solve string interpolation exps at compile time (#12524, thanks @asterite)
Support @[Deprecated] on annotation (#12557, thanks @caspiano)
Add more specific error message for uninstantiated proc type (#11219, thanks @straight-shoota)
Add specs for system macro method (#12885, thanks @straight-shoota)

Tools

Docs-generator

Fix range literals causing method lookups in docs generator (#12680, thanks @caspiano)
Fix method lookup for single char class names (#12683, thanks @caspiano)

Formatter

Formatter: document stdin filename argument (-) (#12620, thanks @caspiano)

Other

Infrastructure

[CI] Drop Alpine libreSSL 3.1 test (#12641, thanks @straight-shoota)
Bump version to 1.7.0-dev (#12640, thanks @straight-shoota)
[CI] Update GHA actions (#12501, thanks @straight-shoota)
Opt in to new overload ordering behavior in Makefile (#12703, thanks @HertzDevil)
Merge release 1.6.2 into master (#12719, thanks @beta-ziliani)
Configure Renovate (#12678, thanks @renovate)
[CI] Add version pin for ilammy/msvc-dev-cmd in windows CI (#12746, thanks @straight-shoota)
[CI] Update dependencies for windows CI (#12745, thanks @straight-shoota)
Update GH Actions (#12742, thanks @renovate)
[CI] Run specs in random order by default (#12541, thanks @straight-shoota)
Update shell.nix for newer LLVM versions and aarch64-darwin (#12591, thanks @HertzDevil)
Update previous Crystal release - 1.6.2 (#12750, thanks @straight-shoota)
[CI] Update PCRE 8.45 for Windows CI (#12762, thanks @HertzDevil)
Add WebAssembly specs (#12571, thanks @lbguilherme)
Update actions/checkout action to v3 (#12805, thanks @renovate)
Enable multithreading specs on Windows CI (#12843, thanks @HertzDevil)
[CI] Update mwilliamson/setup-wasmtime-action action to v2 (#12864, thanks @renovate)
[CI] Update distribution-scripts (#12891, thanks @straight-shoota)
[CI] Update shards 0.17.2 (#12875, thanks @straight-shoota)
Rotate breached credentials in CircleCI (#12902, thanks @matiasgarciaisaia)
Update NOTICE.md (#12901, thanks @HertzDevil)
Split pre-1.0 changelog (#12898, thanks @straight-shoota)

Code Improvements

Style: Remove redundant begin blocks (#12638, thanks @caspiano)
Lint: Fix variable name casing (#12674, thanks @Sija)
Lint: Remove comparisons with boolean literals (#12673, thanks @Sija)
Lint: Use Object#in? instead of multiple comparisons (#12675, thanks @Sija)
Lint: Remove useless assignments (#12648, thanks @Sija)
Use Object#in? in place of multiple comparisons (#12700, thanks @caspiano)
Style: Remove explicit returns from the codebase (#12637, thanks @caspiano)
Lint: Use Enumerable#find!/#index! variants (#12686, thanks @Sija)
Style: Use short block notation for simple one-liners (#12676, thanks @Sija)
Couple of ameba lint issues fixed (#12685, thanks @Sija)
Use context-specific heredoc deliminators (#12816, thanks @straight-shoota)

1.6.2 (2022-11-03)

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 (2022-10-21)

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 (2022-10-06)

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, thanks @asterite)
Hoist complex element expressions outside container literals (#12366, thanks @HertzDevil)
(performance) Compiler: bind to tuple, not array (#12423, thanks @asterite)
Use Path.new(string) instead of Path.new([string]) (#12419, thanks @asterite)
Decouple warning detection from program instances (#12293, thanks @HertzDevil)
(performance) Compiler: only have freeze_type in select AST nodes (#12428, thanks @asterite)
Correctly display codegen when cross-compiling (#12414, thanks @luislavena)
Compiler: simplify some calls (#12417, thanks @asterite)
(performance) Compiler: optimizations in merge_if_vars (#12432, #12433, thanks @asterite)
Compiler refactor: extract type_from_dependencies (#12437, thanks @asterite)
(performance) Compiler: refactor and slightly optimize merging two types (#12436, thanks @asterite)
(performance) Compiler optimization: don't create call for hook unless needed (#12452, thanks @asterite)
(performance) CrystalPath: Cache Dir.current to avoid thousands of allocations (#12455, thanks @yxhuvud)
Better call error messages (#12469, thanks @asterite)
(performance) Compiler optimization: avoid intermediate array when matching call arg types (#12485, thanks @asterite)

Codegen

Codegen: fix how unions are represented to not miss bytes (#12551, thanks @asterite)
Fix alignment typo in compiler comments (#12564, thanks @mdwagner)
Remove redundant code from x86_64 abi (#12443, thanks @mattrberry)
Codegen: use var pointer for out instead of an extra variable (#10952, thanks @asterite)

Debugger

Basic GDB formatter support (#12209, thanks @HertzDevil)
Add Visual Studio formatters for String, Array, and Hash (#12212, thanks @HertzDevil)

Interpreter

Interpreter: handle the case of a def's body with no type (#12220, thanks @asterite)
Interpreter: simplify ivar initialization (#12222, thanks @asterite)
Interpreter: fix autocasting in multidispatch (#12223, thanks @asterite)
Interpreter: handle next inside captured block (#12237, thanks @asterite)
Interpreter: fix crystal_type_id for virtual metaclass type (#12246, thanks @asterite)
Interpreter: handle yield with splat combined with tuple unpacking (#12247, thanks @asterite)
Interpreter: handle inlined call that returns self for structs (#12259, thanks @asterite)
Interpreter: implement Int128/UInt128 intrinsics (#12258, thanks @asterite)
Interpreter: fix some conversion primitives (#12257, thanks @asterite)
Interpreter: don't override special vars inside block (#12251, thanks @asterite)
Interpreter: add missing cast from tuple to other tuple inside union (#12249, thanks @asterite)
Interpreter: allow declaring local vars during a pry session (#12180, thanks @asterite)
Interpreter: handle bitreverse intrinsics (#12273, thanks @asterite)
Interpreter: cache methods with captured block (#12285, thanks @asterite)
Interpreter: missing downcast from MixedUnionType to NilableProcType (#12286, thanks @asterite)
Interpreter: fix with ... yield with extra arguments (#12301, thanks @asterite)
Interpreter: consider nodes without a type as NoReturn (#12275, thanks @asterite)
Interpreter: take with ... yield scope into account for args bytesize (#12317, thanks @asterite)
Fix loader spec on FreeBSD (#12323, thanks @dmgk)
Interpreter: inline ivar access for virtual call with a single child (#12321, thanks @asterite)
Interpreter: fix as? when there's no resulting type (#12328, thanks @asterite)
Interpreter: handle missing closured struct self (#12345, thanks @asterite)
Interpreter: use non_nilable_type in NilableCast (#12348, thanks @asterite)
Interpreter: implement mixed union cast with compatible tuple types (#12349, thanks @asterite)
Interpreter: fix missing upcast_distinct from A+ to B (Crystal::VirtualType to Crystal::NonGenericClassType) (#12374, thanks @asterite)
Interpreter: discard tuple and named tuple (#12387, thanks @asterite)
Interpreter: cast proc call arguments to proc arg types (#12375, thanks @asterite)
Interpreter: set correct scope for class var initializer (#12441, thanks @asterite)
Interpreter (repl): use new MainVisitor each time we need to interpret code (#12512, thanks @asterite)
Interpreter: allow inspecting block vars without affecting program (#12520, thanks @asterite)
Interpreter: check upcast in nilable cast (#12533, thanks @asterite)
Interpreter: implement variable autocast (#12563, thanks @asterite)
Interpreter: handle missing upcast from GenericClassInstanceMetaclassType to VirtualMetaclassType (#12562, thanks @asterite)
Interpreter: let local vars be seen by macros in repl and pry (#12240, thanks @asterite)
Interpreter: handle local variable type declaration (#12239, thanks @asterite)
Support libffi on Windows (#12200, thanks @HertzDevil)
Add $CRYSTAL_INTERPRETER_LOADER_INFO to show loaded libraries (#12221, thanks @straight-shoota)
Interpreter: node override (#12287, thanks @asterite)
Interpreter: introduce a Prompt type (#12288, thanks @asterite)
Interpreter: missing i += 1 (#12381, thanks @asterite)
Support building the interpreter on Windows (#12397, thanks @HertzDevil)
Don't exit in interpreter spec and change type from Nil to NoReturn in FixMissingTypes (#12230, thanks @asterite)
Interpreter: fix multidispatch with captured block (#12236, thanks @asterite)
Interpreter: don't change compiled mode logic (#12252, thanks @asterite)
Wait more in HTTP::Server specs in interpreted mode (#12420, thanks @asterite)

Parser

Lexer: fix index out of bounds when scanning numbers (#12482, thanks @asterite)
Fix parser to never create doc from trailing comment (#11268, thanks @straight-shoota)
Parser: declare local vars of indirect type declarations in call args (#11983, thanks @asterite)
Remove redundant conditional (#12196, thanks @potomak)
Warn on suffix-less integer literals outside Int64's range (#12427, thanks @HertzDevil)
Use enum instead of symbols for keywords in the lexer (#11871, thanks @HertzDevil)
Parser: Rename arg* to param* (#12235, thanks @potomak)
Fix test cases (#12508, thanks @potomak)

Semantic

(breaking-change) Allow Union restrictions to be ordered before all other restrictions (#12335, thanks @HertzDevil)
(breaking-change) Use more robust ordering between def overloads (#10711, thanks @HertzDevil)
Fix: Instance vars should not be allowed on Class, Tuple, NamedTuple, Enum, Pointer , Proc, StaticArray and Union. (#12160, thanks @I3oris)
Compiler and interpreter: fix is_a? from virtual metaclass to generic metaclass (#12306, thanks @asterite)
Compiler: fix type descendent for union metaclass (#12308, thanks @asterite)
Compiler: fix is_a? from generic class against generic class instance type (#12312, thanks @asterite)
Fix self in restrictions when instantiating macro def in subtypes (#10954, thanks @HertzDevil)
Never resolve free variables as types during overload ordering (#11973, thanks @HertzDevil)
Use instantiated type as self when inferring instance variable types (#12466, thanks @HertzDevil)
Fix restriction comparison between Metaclass and Path (#12523, thanks @HertzDevil)
(performance) Compiler: don't always use Array for node dependencies and observers (#12405, thanks @asterite)
Compiler: better error message for symbol against enum (#12478, thanks @asterite)

Tools

Docs-generator

Fix docs generator search constants id (#12262, thanks @GeopJr)

Formatter

Formatter: format comment after select (#12506, thanks @asterite)
Formatter: try to format macros that don't interpolate content (#12378, thanks @asterite)

Playground

Playground: Fix pass bound hostname to run sessions (#12356, thanks @orangeSi)
Don't show stacktrace when playground port is already in use. (#11844, thanks @hugopl)
Indent playground code using spaces (#12231, thanks @potomak)

Other

bin/crystal: Ensure sh compatibility (#12486, thanks @HertzDevil)
bumping version 1.6.0-dev (#12263, thanks @beta-ziliani)
updating CI to 1.5.0 (#12260, thanks @beta-ziliani)
Add fish shell completion (#12026, thanks @TunkShif)
Execute compopt only when it's present (#12248, thanks @potomak)
Use Makefile.win and wrapper script on Windows CI (#12344, thanks @HertzDevil)
[Makefile] Add format target (#11420, thanks @straight-shoota)
Update contact section of CODE of CONDUCT (#9219, thanks @paulcsmith)
Update nixpkgs 22.05 and LLVM 11 (#12498, thanks @straight-shoota)
[Makefile] Use EXPORT_CC for make crystal (#11760, thanks @straight-shoota)
Update distribution-scripts (#12502, #12555, thanks @straight-shoota)
Fix and enhance scripts/update-distribution-scripts.sh (#12503, thanks @straight-shoota)
[CI] Upgrade GitHub Actions to macos-11 (#12500, thanks @straight-shoota)
Add icon and metadata to Windows Crystal compiler binary (#12494, thanks @HertzDevil)
Remove spec/win32_std_spec.cr and spec/generate_windows_spec.sh (#12282, #12549, thanks @HertzDevil and @straight-shoota)

1.5.1 (2022-09-07)

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 (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, thanks @1player)

Parser

(breaking-change) Disallow empty parameter and argument names (#11971, thanks @HertzDevil)
Disallow duplicate free variables in defs (#11965, thanks @HertzDevil)
Disallow duplicate fun parameter names (#11967, thanks @HertzDevil)
Remove redundant check for EOF on Crystal::Parser (#12067, thanks @lbguilherme)

Semantic

Compiler: don't check ivar read forms a closure in exp.@x (#12183, thanks @asterite)
Compiler: raise when allocating an abstract virtual type (#12141, thanks @asterite)
Compiler: don't use with_scope if Call has a receiver (#12138, thanks @asterite)
Compiler: fix proc return type restriction for Proc(...) (#12129, thanks @asterite)
Compiler: simpler way to compute Def#raises? (#12121, thanks @asterite)
Remove unused ASTNode#unbind_all (#12120, thanks @asterite)

Debugger

Improve the LLDB spec driver script (#12119, thanks @HertzDevil)

Tools

Docs-generator

[Docs] Adjust method sort order to sort all operators first (#12104, thanks @straight-shoota)

Formatter

Fix formatter lib-fun declaration with newlines (#12071, thanks @ftarulla)
Fix formatter alias-def with no-space before equals (#12073, thanks @ftarulla)
Fix formatter for parenthesized arg after space (#11972, thanks @straight-shoota)

Playground

Playground: fix modalContenDom typo (#12188, thanks @HertzDevil)
Fix: Unset executable bit from js/css files in playground (#12053, thanks @carlhoerberg)

Other

[CI] Add build compiler step to smoke tests (#11814, thanks @straight-shoota)
Add Makefile for Windows (#11773, thanks @HertzDevil)
[CI] Update distribution-scripts (#12155, thanks @straight-shoota)
[CI] Add update-distributions-scripts.sh (#12156, thanks @straight-shoota)
[CI] Ignore pax_global_header on Windows CI (#12173, thanks @HertzDevil)
[CI] Invalidate cached libraries on new MSVC release (#12064, thanks @HertzDevil)
Fix spelling (#12040, thanks @jsoref)
Update previous Crystal release - 1.4.1 (#12029, thanks @straight-shoota)
[CI] Pin version of ubuntu base image for circleci jobs (#12030, thanks @straight-shoota)
Samples: avoid Symbol variables (#11923, thanks @HertzDevil)

1.4.1 (2022-04-22)

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 (2022-04-06)

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::Format methods (#11713, thanks @ThunderKey)
Support day of year (%j) in Time parsers (#11791, thanks @HertzDevil)

Compiler

Hello WebAssembly! (MVP implementation) (#10870, thanks @lbguilherme)
Fix compiler specs git integration for configurable default branch (#11754, thanks @yxhuvud)
Crystal::ToSVisitor: Remove decorate_* methods (#11724, thanks @HertzDevil)
Use fewer symbols in the compiler source (#11625, thanks @HertzDevil)
Add support for --m* flags to crystal spec and crystal eval (#11767, thanks @yxhuvud)
Add local compiler wrapper script for Windows (#11524, thanks @HertzDevil)
Add Crystal::Program#check_deprecation (#11684, thanks @HertzDevil)
Refactor symbols for primitive number kinds to enums (#11621, thanks @HertzDevil)
Remove useless assignments II (#11843, thanks @IgorPolyakov)
Limit the number of rendered overloads on signature mismatch (#10890, thanks @caspiano)
Support "can't infer type parameter" error for uninstantiated generic modules (#11904, thanks @HertzDevil)
Fix: Accept only option flags in CRYSTAL_OPTS for build commands (#11922, thanks @HertzDevil, @beta-ziliani)
Evaluate LibLLVM::IS_LT_* during macro expansion time (#11913, thanks @HertzDevil)
Fix incorrect var type inside nested exception handler (#11928, thanks @asterite)
Fix: Look up return type in defining type (#11962, thanks @asterite)

Codegen

(performance) Codegen: Do not always request value for Proc#call (#11675, thanks @HertzDevil)

Debugger

Fix debug location of inlined Proc#call body (#11676, thanks @HertzDevil)

Generics

Resolve non-type free variables in return type restrictions (#11861, thanks @HertzDevil)
Fix recursive pointerof detection with generic splat type variables (#11811, thanks @HertzDevil)

Interpreter

Fix for Crystal interpreter crash (#11717, thanks @wmoxam)
Interpreter: support Tuple#[] with range literals (#11783, thanks @HertzDevil)
Interpreter: Promote arguments of variadic function calls (#11795, thanks @straight-shoota)
Check if libraries are present using dlopen (#11852, thanks @FnControlOption)
Use Crystal::Loader in the interpreter (#11579, thanks @straight-shoota)
Improve Crystal::Loader errors (#11860, thanks @straight-shoota)
Enable interpreter integration specs for YAML (#11801, thanks @straight-shoota)

Parser

Fix parser error with semicolon + newline in parenthesized Expressions (#11769, thanks @straight-shoota)
Fix comment indentation in ASTNode#to_s (#11851, thanks @FnControlOption)
Add locations for else, ensure, end keywords (#11476, thanks @FnControlOption)
Add parser support to handle CRLF the same as LF (#11810, thanks @asterite)
Lexer: use Crystal::Token::Kind enum instead of symbols (#11616, thanks @HertzDevil)
Support Generic nodes with no type variables (#11906, thanks @HertzDevil)

Semantic

(breaking-change) Drop skip_abstract_def_check flag support (#9217, thanks @makenowjust)
Add error when instance variable is inherited from module and supertype (#11768, thanks @straight-shoota)
Check file-private types for abstract defs and recursive structs (#11838, thanks @HertzDevil)
Fix: Prevent eager instance_sizeof on structs (#11856, thanks @mattrberry)
Fix: Do not consider global Path in def parameter restriction as free variable (#11862, thanks @HertzDevil)

Tools

Do not inherit from Hash in the compiler (#11707, thanks @HertzDevil)
Use OptionParser in crystal env (#11720, thanks @HertzDevil)

Playground

Replace PNG icon with optimized SVG for playground (#7616, thanks @straight-shoota)

Other

Update previous Crystal release - 1.3.2 (#11715, thanks @straight-shoota)
Add scripts/release-update.sh (#11716, thanks @straight-shoota)
[Makefile] Honour $CC in EXPORT_CC (#11548, thanks @straight-shoota)
Fix typo in GHA aarch64 config (#11793, thanks @straight-shoota)
[CI] Test against LLVM 13 (#11343, thanks @straight-shoota)
[CI] Use parameters in circleci config (#11714, thanks @straight-shoota)
Refactor etc/completion.bash (#11719, thanks @HertzDevil)
[CI] Renaming jobs to be arch-os-job or arch-build-job (#11207, thanks @beta-ziliani)
Improve documentation for review and merge processes (#11800, thanks @straight-shoota)
Improve section ordering in scripts/github-changelog.cr (#11770, thanks @straight-shoota)
Upload build artifacts to S3 bucket (#11902, thanks @matiasgarciaisaia, @straight-shoota)
Fix make install for BSD (#11758, thanks @straight-shoota)
Fix typo (#11939, thanks @taupiqueur)
[CI] Update to shards 0.17.0 (#11930, thanks @straight-shoota)
Use be_empty expectations in more specs (#11937, thanks @HertzDevil)
[CI] Update distribution-scripts (#11969, thanks @straight-shoota)

1.3.2 (2022-01-18)

Standard Library

Text

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

1.3.1 (2022-01-13)

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)

1.3.0 (2022-01-06)

Compiler

Refer to T.class as "metaclass" in error messages, not "class" (#11378, thanks @HertzDevil)
Create Reason enum for exhaustive case in nil-reason check (#11449, thanks @rymiel)
Improve cache directory behaviour on Windows (#11436, thanks @HertzDevil)
Automatically detect MSVC tools on Windows via vswhere (#11496, thanks @HertzDevil)
Clean up .pdb files for temporary executables on MSVC (#11553, thanks @HertzDevil)
Disable incremental linking on MSVC (#11552, thanks @HertzDevil)
Allow multiple --emit compiler options to stack (#11556, thanks @HertzDevil)
Refactor some type restrictions in the compiler (#11531, thanks @straight-shoota)
Detect cl.exe's path for compiler specs requiring a C compiler (#11560, thanks @HertzDevil)
Increase default stack size on MSVC to 8 MB (#11569, thanks @HertzDevil)
Resolve compiler wildcard require (#11562, thanks @straight-shoota)
Compiler: use enums instead of symbols in various places (#11607, thanks @HertzDevil)

Codegen

Disable specs for StaticArray#sort_by on broken targets (#11359, thanks @straight-shoota)
Fix link flag behaviour on Windows MSVC (#11424, thanks @HertzDevil)
Attach debug locations to splat expansions inside array-like literals (#11655, thanks @HertzDevil)
Use full name for private types' class variables during codegen (#11651, thanks @HertzDevil)
Fix codegen when instantiating class methods of typedefs (#11636, thanks @HertzDevil)
Add minimal load-time DLL support on Windows, support dllimport storage class (#11573, thanks @HertzDevil)

Debugger

Attach debug locations to auto-generated initialize methods (#11313, thanks @HertzDevil)
Fix debug location for ~check_proc_is_not_closure (#11311, thanks @HertzDevil)

Interpreter

crystal i, a Crystal interpreter (#11159, thanks @asterite)
Implement FFI bindings (#11475, thanks @straight-shoota)
Add Crystal::Loader (#11434, #11662, thanks @straight-shoota, @HertzDevil)
Mark bswap32 intrinsic with interpreter primitive annotation (#11582, thanks @rymiel)
Split interpreter specs into separate files (#11578, thanks @straight-shoota)
Workaround for GC issues in interpreter specs (#11634, thanks @straight-shoota)

Parser

Parser: allow keyword as named argument inside macros (#10377, thanks @asterite)
Parser: add missing end location to IsA node (#11351, thanks @FnControlOption)
Fix node locations for ProcLiterals with parameters (#11365, thanks @HertzDevil)
Fix parser error with named argument end in macro body (#11463, thanks @straight-shoota)
Report syntax error for too-long bin/hex/oct integer literals (#11447, thanks @oprypin)
[lexer] Correctly increase nesting for escaped macro unless (#11440, thanks @rymiel)
Show proper syntax errors in some edge cases in the parser (#11446, thanks @oprypin)
Fix parse yield with parenthesis (#11469, thanks @straight-shoota)
Lexer number parsing refactor (#11211, thanks @BlobCodes)
Allow underscores after a leading zero in String#to_i (regression fix) (#11672, thanks @BlobCodes)
Fix no comma before short block in ToSVisitor (#11677, thanks @homonoidian)
Unify format of "unexpected token" error (#11473, thanks @straight-shoota)
Implement lexer int128 support (#11571, thanks @BlobCodes)

Semantic

Show proper owner for Class's methods in error messages (#10590, thanks @HertzDevil)
Be more strict about ProcNotation variable declarations (#11372, thanks @HertzDevil)
Allow metaclass parameters in Proc literals and pointers (#11367, thanks @HertzDevil)
Fix top-level multi-assign splat variable not working in macros (#11600, thanks @HertzDevil)
Replace semantic with assert_no_errors in compiler specs whenever possible (#11288, thanks @HertzDevil)
Make inject_primitives = false default for semantic specs (#11297, thanks @HertzDevil)
Add spec for #8428 (#10073, thanks @docelic)
Remove and resolve spurious cast and its associated FIXME (#11455, thanks @rymiel)
Add pending spec for recursive abstract struct (#11470, thanks @HertzDevil)

Language

(breaking-change) Require elements in 1-to-n assignments to match targets exactly (#11145, thanks @HertzDevil)
(breaking-change) Require right-hand side of one-to-many assignments to be Indexable (#11545, thanks @HertzDevil)
Support splats on left-hand sides of multiple assignment expressions (#10410, thanks @HertzDevil)
Make all AST nodes immutable through container-returning methods (#11397, thanks @HertzDevil)
Add auto upcast for integer and float values (#11431, #11529, thanks @asterite, @beta-ziliani)

Standard Library

Fix Process::INITIAL_PWD for non-existent path (#10525, thanks @straight-shoota)
Resolve some TODOs (#11369, thanks @straight-shoota)
Refactor some target flag uses (#11466, thanks @straight-shoota)
Use Slice(UInt8)#fill in the standard library (#11468, thanks @HertzDevil)
Update spec/win32_std_spec.cr (#11432, #11637, thanks @HertzDevil)
Use strings instead of symbols in #finalize specs (#11619, thanks @HertzDevil)
Fix Enum.parse to handle case-sensitive member names (#11659, thanks @straight-shoota)
Improve docs for Object#not_nil! (#11661, thanks @straight-shoota)

Collection

(breaking-change) Always use start as parameter in subrange-accepting methods (#11350, thanks @HertzDevil)
(breaking-change) Refactor Indexable::Mutable#fill's overloads (#11368, thanks @HertzDevil)
Add sorting methods to StaticArray (#10889, thanks @HertzDevil)
Add spaceship operator to StaticArray (#11364, thanks @henrikac)
(performance) Optimize BitArray#reverse! (#11363, thanks @HertzDevil)
(performance) Grow large arrays more slowly (#11482, thanks @mgomes)
Fix docs for Indexable::Mutable#map! (#11349, thanks @HertzDevil)
Add Slice#unsafe_slice_of, #to_unsafe_bytes (#11379, thanks @HertzDevil)
(performance) Avoid reallocation in Enumerable#each_cons and Iterator#cons's default reused array (#10384, thanks @HertzDevil)
Fix Array#unshift for large arrays (#11656, thanks @HertzDevil)

Crypto

Support OpenSSL on Windows (#11477, thanks @HertzDevil)
Encode OpenSSL version on Windows (#11516, thanks @HertzDevil)
Add docs to Crypto::Bcrypt (#9647, thanks @j8r)
Fix getrandom for interpreter (#11624, thanks @straight-shoota)
(performance) Use more efficient method to split UInt32 to bytes in Crypto::Blowfish (#11594, thanks @BlobCodes)

Files

Add bindings to __xstat, __fxstat and __lxstat for x86_64-linux-gnu (#11361, #11536, thanks @straight-shoota)
Fix IO::Memory#to_s appending to itself (#11643, thanks @straight-shoota)

LLVM

Fix LLVMExtDIBuilderCreateArrayType argument alignInBits should be UInt64 (#11644, thanks @lbguilherme)

Log

Add Log.with_context with kwargs (#11517, thanks @caspiano)
Refactor Log::BroadcastBackend#single_backend? (#11530, thanks @straight-shoota)

Macros

Add macro methods for Return, Break, Next, Yield, and exception handlers (#10822, thanks @HertzDevil)
Add Crystal::Macros::ProcNotation#resolve and #resolve? (#11373, thanks @HertzDevil)
Support explicit return types in ProcLiterals (#11402, thanks @HertzDevil)
Add several missing ASTNode macro methods (#10811, thanks @HertzDevil)
Allow incomplete range arguments for #[](Range) macro methods (#11380, thanks @HertzDevil)
Add macro methods for Metaclass nodes (#11375, thanks @HertzDevil)

Networking

Datagram support for UNIXServer (#11426, thanks @carlhoerberg)
Fix WebSocket#stream flushing for not exactly buffer size, add specs (#11299, thanks @will)
Fix flag for UNIX-like OS (#11382, thanks @straight-shoota)
Add more check_headers to HTTP::Server::Response (#11253, thanks @straight-shoota)
Enable LogHandler address for win32 (#11465, thanks @straight-shoota)
Enable two specs to run on all platforms (#11467, thanks @straight-shoota)
TCPServer: explain how to get an ephemeral port (#11407, thanks @rdp)
Fix HTTP::Server::Response#close when replaced output syncs close (#11631, thanks @straight-shoota)

Numeric

(breaking-change) Fix Random.rand(max : Float32) return Float32 (#9946, thanks @j8r)
Fix Math linking errors on Windows MSVC (#11435, thanks @HertzDevil)
Implement compiler-rt __multi3 for arm (#11499, thanks @straight-shoota)
Use MPIR for Big* numbers on Windows (#11412, thanks @HertzDevil)
Add BigRational#to_big_r (#11462, thanks @HertzDevil)
Move specs for arithmetic primitives to primitives_spec (#11298, thanks @HertzDevil)
Implement compiler-rt's 128-bit integer conversions to/from floats (#11437, thanks @HertzDevil)
Fix Number.significant to return 0 as is, not as Float64 (#11321, thanks @Sija)
Fix inequality for floating-point NaNs (#11229, thanks @HertzDevil)
Add workaround for 128-bit integer division/modulo on Windows (#11551, thanks @HertzDevil)
Reject near-boundary and NaN values for Float-to-Int conversions (#11230, thanks @HertzDevil)

Runtime

GC/Boehm: Silence GC warnings about big allocations. (#11289, thanks @yxhuvud)
Disable impossible spec on win32, previously marked as pending (#11451, thanks @straight-shoota)
Support call stacks on Windows (#11461, thanks @HertzDevil)
Make Windows PDB lookup relative to running executable (#11493, thanks @HertzDevil)

Serialization

Parses JSON UInt64 numbers. (#11395, thanks @hugopl)
Fix YAML::Any deserialize with alias (#11532, thanks @straight-shoota)

Specs

Use enums instead of symbols for Spec-related types (#11585, thanks @HertzDevil)

System

Add native Linux syscall interface (#10777, thanks @lbguilherme)
Implement Path.home on Windows (#11503, thanks @HertzDevil)
Support ~\ for Windows paths in Path#expand and File.expand_path (#11559, thanks @HertzDevil)
Support non-ASCII command-line arguments on Windows (#11564, thanks @HertzDevil)
Enable kernel_spec.cr on Windows CI (#11554, thanks @HertzDevil)
Fix getrandom syscall was blocking and didn't had proper error checking (#11460, thanks @lbguilherme)

Text

Regex: use PCRE_UCP (#11265, thanks @asterite)
Add missing it in UUID spec (#11353, thanks @darkstego)
Add Char#unicode_escape and fix #dump and #inspect format (#11421, thanks @straight-shoota)
Fix Char#letter? to include all letter categories (#11474, thanks @straight-shoota)
Pass JIT Compile flag to study (#11325, thanks @Blacksmoke16)
Add Comparison operator to UUID (#11352, thanks @darkstego)
Add Char#printable? (#11429, thanks @straight-shoota)
Fix String#inspect and Char#inspect escape all non-printable characters (#11452, #11626, thanks @straight-shoota)
Support custom encodings on Windows through GNU libiconv (#11480, thanks @HertzDevil)
(breaking-change) Change Regex#name_table to return Hash(Int32, String) (#11539, thanks @straight-shoota)
Fix skip surrogates in Char#succ and #pred (#11506, thanks @straight-shoota)
(performance) Improve Base64 decoding performance (#11094, thanks @BlobCodes)
Refactor syntax highlighter and add ANSI escape code highlighter for console (#11366, thanks @straight-shoota)
Fix UTF-8 console input/output on Windows (#11557, thanks @HertzDevil)
Implement Unicode grapheme clusters (#11472, #11611, thanks @straight-shoota)
(breaking-change) Fix Char#ascii_control? restrict to ASCII characters (#11510, thanks @straight-shoota)
(performance) Performance: specify string sizes in advance (#11592, thanks @BlobCodes)
(performance) Improve performance of Char#to_s (#11593, thanks @BlobCodes)
Add docs to Colorize (#11664, thanks @straight-shoota)
Support ANSI escape sequence output on more Windows consoles (#11622, thanks @HertzDevil)

Tools

[docs] Fix ditto with additional lines (#11336, thanks @straight-shoota)
[docs] Compact some JSON fields for search (#11438, thanks @rymiel)
[docs] Add 404.html page (#11428, thanks @straight-shoota)
[docs] Improve search input a11y for generated docs (#11604, thanks @chances)
[docs] use shard.yml version when no git tag present (#11232, thanks @superhawk610)
[formatter] Fix weird interactions with comments near indentation (#11441, thanks @rymiel)
[formatter] fix extra newline after comment in case else (#11448, thanks @rymiel)
[formatter] Fix space between call name and parenthesized arg (#11523, thanks @straight-shoota)
[playground] Refactor PlaygroundPage resources list (#11608, thanks @straight-shoota)

Other

Update previous Crystal release - 1.2.2 (#11430, thanks @straight-shoota)
Prepare 1.3.0-dev (#11317, thanks @straight-shoota)
[CI] Fix test_dist_linux_on_docker (#11512, thanks @straight-shoota)
Improve compiler spec helpers for macro methods (#11139, thanks @HertzDevil)
Add Makefile to build samples (#11419, thanks @straight-shoota)
Verify downloads' hashes in Windows CI (#11423, thanks @matiasgarciaisaia)
Make the Windows compiler artifact more portable (#11494, thanks @HertzDevil)
Allow compiler executable under test to be overridden (#11457, thanks @HertzDevil)
Fix CI rules for building libiconv on Windows (#11504, thanks @HertzDevil)
Update license template (#11498, thanks @taupiqueur)
Pin alpine repo for ssl libs to 3.15 (#11500, thanks @straight-shoota)
Don't generate PDB for MPIR on Windows (#11521, thanks @HertzDevil)
[Makefile] Check for LLVM_CONFIG only when LLVM is used (#11519, thanks @straight-shoota)
Update distribution-scripts (#11514, #11515, thanks @straight-shoota)
Add commit hash to Windows builds (#11538, thanks @HertzDevil)
Support BuildTools and other VS variants in vswhere detection (#11534, thanks @neatorobito)
Define LIBXML_STATIC when building xml2.lib on Windows (#11574, thanks @HertzDevil)
Improve texts in README.md (#11587, thanks @athix)
Include shards with Windows build artifacts (#11543, thanks @neatorobito)
[CI] Remove libatomic_ops (#11598, thanks @straight-shoota)

1.2.2 (2021-11-10)

Compiler

x86_64 ABI: pass structs indirectly if there are no more available registers (#11344, thanks @ggiraldez)
Add parentheses around type name for metaclasses of unions (#11315, thanks @HertzDevil)
(regression) Restrict virtual metaclasses to themselves against Class (#11377, thanks @HertzDevil)
(regression) Add fallback for union debug type if current debug file is not set (#11390, thanks @maxfierke)
(regression) Add missing debug locations to constant / class variable read calls (#11417, thanks @HertzDevil)

Standard Library

Collection

Fix BitArray#toggle when toggling empty subrange (#11381, thanks @HertzDevil)

Crypto

Update for OpenSSL 3.0.0 (#11360, thanks @straight-shoota)
Restore libressl support and add CI for that (#11400, thanks @straight-shoota)
Replace lib version comparisons by functional feature checks (#11374, thanks @straight-shoota)

Runtime

Add support for DWARF 5 (#11399, thanks @straight-shoota)
Retrieve filename of shared libs, use in stacktraces (#11408, thanks @rdp)

Other

[CI] Fix enable nix-command as experimental feature (#11398, thanks @straight-shoota)
[CI] Fix OpenSSL 3 apk package name (#11418, thanks @straight-shoota)
Update distribution-scripts (#11404, thanks @straight-shoota)
[CI] Fix pcre download URL (#11422, thanks @straight-shoota)

1.2.1 (2021-10-21)

Compiler

Adding location to the Path returned by the literal expander for regex (#11334, thanks @beta-ziliani)

Standard Library

Add support for LLVM 13 (#11302, thanks @maxfierke)

Runtime

Move the :nodoc: flags to the right place to hide the __mul* functions. (#11326, thanks @wyhaines)

Tools

Update markd subtree to v0.4.2 (#11338, thanks @straight-shoota)

1.2.0 (2021-10-13)

Compiler

Fix variance checks between generic instances for Proc#call and abstract defs. (#10899, thanks @HertzDevil)
Fix proc_spec forcing normal compilation instead of JIT (#10964, thanks @straight-shoota)
Fix ProcNotation#to_s remove whitespace for nil output type (#10935, thanks @straight-shoota)
Compiler: carry FileModule information inside Block (#11039, thanks @asterite)
Splat values correctly inside return/break/next statements (#10193, thanks @HertzDevil)
Handle already stripped column numbers in compiler exceptions (#11008, thanks @pyrsmk)
Substitute unbound type parameters in virtual metaclass types (#11067, thanks @HertzDevil)
Improve detection of instance variables in extended modules (#10554, thanks @HertzDevil)
Don't compute instance variable initializers on unbound generic instances (#11000, thanks @HertzDevil)
Syntax errors for invalid 128-bit integer literals (#10975, thanks @rymiel)
Support auto-splatting in captured block literals (#10251, thanks @HertzDevil)
Detect cyclic includes between generic modules (#10529, thanks @HertzDevil)
Add stricter checks for arguments to macro methods on AST nodes (#10498, thanks @HertzDevil)
Compiler: fix is_a? for virtual metaclass types (#11121, thanks @asterite)
Fix edge cases with unicode method names (#10978, thanks @HertzDevil)
Don't emit debug info for unused variable declarations (#10957, thanks @HertzDevil)
Fix Call.def_full_name print full block parameter (#10915, thanks @straight-shoota)
Allow union types to be unbound (#11166, thanks @HertzDevil)
Make typeof start a nested lexical scope (#10796, thanks @HertzDevil)
Fix edge case for intersection between virtual metaclasses (#11185, thanks @HertzDevil)
Compiler: don't trigger "already had enclosing call" for same object (#11202, thanks @asterite)
Properly handle indirect arguments for external C functions (#11189, thanks @ggiraldez)
Fix resolve generic argument in block output type restriction mismatch (#11186, thanks @straight-shoota)
Secure array slicing when expanding macro for stack trace (#11109, thanks @pyrsmk)
Fix debug locations for Proc pointers (#11243, thanks @HertzDevil)
Allow assignments from generic instance metaclasses to virtual metaclasses (#11250, thanks @HertzDevil)
Refactor CrystalPath#find_in_path_relative_to_dir for readability (#10876, #10990, #10988, thanks @straight-shoota)
Allow constants and instance / class variables as receivers for setter proc pointers (#10741, thanks @HertzDevil)
Do not use globals for regex (#10951, thanks @asterite)
Define type filtering through an intersection operation (#10781, thanks @HertzDevil)
Fix no overflow check when primitive int converts to same type (#11003, thanks @HertzDevil)
Attach debug locations to generated internal LLVM functions (#10934, thanks @HertzDevil)
Add helpful error message for invalid number literal like '.42' (#4665, thanks @MakeNowJust)
Add CrystalPath.expand_paths, expand relative to compiler path (#11030, thanks @straight-shoota)
Clarify usage of "arguments" and "parameters" in error messages (#10378, thanks @HertzDevil)
(performance) Don't generate type IDs for formal generic instances (#11167, thanks @HertzDevil)
(performance) Don't generate unique type IDs for virtual metaclasses (#11188, thanks @HertzDevil)
Add an environment variable for dumping type IDs (#11168, thanks @HertzDevil)
Allow underscores in macro for's loop variables (#11141, thanks @HertzDevil)
(performance) Compiler: cache cleanup transformer (#11197, thanks @asterite)
Avoid needless union in LLVM::ABI::AArch64#homogeneous_aggregate? (#11199, thanks @asterite)
Removing ThinLTO support (#11194, thanks @beta-ziliani)
Error if abstract def implementation is inherited from supertype (#11056, thanks @straight-shoota)
(performance) Add inject_primitives: false to macro_spec (#11269, thanks @straight-shoota)
Primitive annotations for interpreter (#11147, thanks @asterite)
Support generic module instances in TypeNode#includers (#11116, thanks @HertzDevil)
Reject hash literals with mixed syntax (#11154, thanks @MakeNowJust)

Language

Make .as?(NoReturn) always return nil (#10896, thanks @HertzDevil)
Compiler: make is_a?(union) work correctly for virtual types (#11176, thanks @asterite)
Adjust docs for Crystal::Macros::HashLiteral#[] (#10930, thanks @kevinsjoberg)
Fix path lookup when ancestor finds type with same name as current scope (#10901, thanks @HertzDevil)
Fix several compile-time operations on generic instance metaclasses (#11101, thanks @HertzDevil)
Make #is_a? in macros respect the AST node hierarchy (#11062, thanks @HertzDevil)
Add docs to string methods in SymbolLiteral and MacroId (#9298, thanks @MakeNowJust)
Add clarification about when instance_vars can be called (#11171, thanks @willhbr)
Add file_exists? macro method (#10540, thanks @Sija)

Standard Library

(breaking-change) Change nonsense return types to Nil: uncategorized (#10625, thanks @oprypin)
(breaking-change) Change nonsense return types to Nil in formatter classes (#10623, thanks @oprypin)
Add base64 to prelude (#11050, thanks @straight-shoota)
Remove calls to deprecated SystemError.from_winerror (#11220, thanks @straight-shoota)
Add support for LLVM 12 (#10873, #11178, thanks @maxfierke, @Blacksmoke16)
Examples: fix (2021-09) (#11234, thanks @maiha)
Don't use :nodoc: when overriding public methods (#11096, thanks @HertzDevil)
Add internal registry implementation for win32 (#11137, thanks @straight-shoota)

Collection

(breaking-change) Move Array#product to Indexable#cartesian_product (#10013, thanks @HertzDevil)
Disallow Slice(T).new(Int) where T is a union of primitive number types (#10982, thanks @HertzDevil)
Make Array#transpose, Enumerable#reject, Enumerable#to_h work with tuples (#10445, thanks @HertzDevil)
Fix Enumerable#each block return type (#10928, thanks @straight-shoota)
Fix key type for empty NamedTuple be Symbol (#10942, thanks @caspiano)
Fix overflow in BitArray#[](Int, Int) for sizes between 33 and 64 (#10809, thanks @HertzDevil)
Fix Range#step for non-integer Steppable types (#11130, thanks @straight-shoota)
(performance) Construct an array literal in NamedTuple#map (#10950, thanks @caspiano)
Add Slice#fill (#10924, thanks @HertzDevil)
Add range overloads for BitArray#toggle (#10743, thanks @HertzDevil)
Add stable sort implementation to Slice, Array and Indexable::Mutable (#10163, #11029, #11254, thanks @MakeNowJust, thanks @straight-shoota)
Allow Enumerable(T)#reduce's return type to differ from T (#11065, thanks @HertzDevil)
Implement Enumerable#tally_by (#10922, thanks @caspiano)
Add the Indexable::Mutable(T) module (#11059, thanks @HertzDevil)
Remove restriction of bsearch block output type (#11212, thanks @straight-shoota)
Add and improve type restrictions of block arguments (#10467, #11246, [#11267](crystal-lang#11267, #11308, thanks @caspiano, thanks @straight-shoota, thanks @HertzDevil, thanks @beta-ziliani, thanks @caspiano)
(performance) Optimize #rotate! (#11198, thanks @HertzDevil)

Concurrency

Fix Documentation of Fiber.timeout (#11271, thanks @toddsundsted)
(performance) Scheduler#reschedule: Shortcut lookup for current fiber. (#11156, thanks @yxhuvud)
Add sleep support to win32 event loop (#10605, thanks @straight-shoota)

Files

(breaking-change) Change nonsense return types to Nil in IO-related methods (#10621, thanks @oprypin)
Fix File.match? to accept Path type as path argument (#11075, thanks @fishnibble)
Add FileUtils method specs with String and Path arguments (#10987, thanks @straight-shoota)
Make IO#read_char's default behaviour UTF-8-strict (#10446, thanks @HertzDevil)
Fix glob with multiple recurse patterns (#10813, thanks @straight-shoota)
IO: fix bug in gets without peek involving \r and limit (#11241, thanks @asterite)
Make FileUtils.mv work across filesystems (#10783, thanks @naqvis)
(performance) Improve performance of Path#dirname and Path#extension (#11001, thanks @BlobCodes)

Networking

(breaking-change) Change nonsense return types to Nil in HTTP-related methods and Log (#10624, thanks @oprypin)
Fix trailing rescue syntax (#11083, thanks @straight-shoota)
Fix spec for HTTP::Params can't run on its own (#11128, thanks @asterite)
Fix parsing cookie Domain attribute with leading dot (#11098, thanks @mamantoha)
Rescue OpenSSL::SSL::Error in HTTP::Server#handle_client (#11146, thanks @straight-shoota)
Fix TCPSocket constructors (#11049, thanks @straight-shoota)
Support basic auth from URI in websockets (#10854, thanks @willhbr)
Tag std specs that need network access (#11048, thanks @toshokan)
Proper handling of max-age and expires for cookies (#10564, thanks @straight-shoota, @watzon)
Retry HTTP::Client requests once if io is closed (#11088, thanks @carlhoerberg)
Implement Socket for win32 (#10784, thanks @straight-shoota)
Add URI.encode_path and deprecate URI.encode (#11248, thanks @straight-shoota)

Numeric

(breaking-change) Refine type restriction of Math.frexp(BigFloat) (#10998, thanks @straight-shoota)
Fix BigInt#to_s emitting null bytes for certain values (#11063, thanks @HertzDevil)
Fix Float#humanize for values outside 1e-4...1e15 (#10881, thanks @straight-shoota)
Add type restrictions and fix return types of BigFloat#to_x methods (#10996, thanks @straight-shoota)
Add integer square root (#10549, thanks @kimburgess)
Add negative exponential support to BigDecimal (#10892, thanks @stakach)
Add #next_float and #prev_float to Float32 and Float64 (#10908, thanks @HertzDevil)
Add precision parameter to Int#to_s (#10926, thanks @HertzDevil)
(performance) Improve Int parsing performance (#11093, thanks @BlobCodes)
Implement Int128 compiler-rt methods (#11206, thanks @BlobCodes)
Fix BigDecimal operations with floats (#10874, thanks @stakach)
Add String#to_(u/i)128(?) methods (#11245, thanks @BlobCodes)

Runtime

Extract libunwind from callstack (#11205, thanks @straight-shoota)

Serialization

(breaking-change) Change nonsense return types to Nil: JSON and YAML (#10622, thanks @oprypin)
(breaking-change) Add type restriction and conversion to YAML::PullParser#location (#10997, thanks @straight-shoota)
Allow EOF IO passed to JSON::PullParser.new (#10864, thanks @Blacksmoke16)
Quote the named tuple's keys on deserialization (#10919, thanks @Blacksmoke16)
Refactor JSON::PullParser#consume_number to use stdlib number parsing (#10447, thanks @straight-shoota)
XML Namespace improvements (#11072, thanks @Blacksmoke16)
Add JSON/YAML serialization to URI (#10404, thanks @straight-shoota)

Specs

Add missing require in iterator_spec (#11148, thanks @asterite)
Add missing requires to run a couple of specs standalone (#11152, thanks @asterite)
Allow describe without requiring an argument (#10974, thanks @straight-shoota)

System

SystemError: Fix inconsistent signature. (#11002, thanks @yxhuvud)

Text

(breaking-change) Deprecate String#unsafe_byte_at (#10559, thanks @straight-shoota)
(breaking-change) Rename IO#write_utf8 to #write_string. (#11051, thanks @straight-shoota)
Use #write_string instead of #write whenever writing strings to unknown IOs (#11011, thanks @HertzDevil)
Don't use #write_byte whenever writing ASCII characters to unknown IOs (#11124, thanks @HertzDevil)
Make Int#chr reject surrogate halves (#10451, thanks @HertzDevil)
CSV: don't eagerly check next char after newline (#11174, thanks @asterite)
Fix link on regex.cr (#11204, thanks @gemmaro)
Disallow non-UTF-8 encoding settings for String::Builder (#11025, thanks @HertzDevil)
Unicode: update to version 14.0.0 (#11215, thanks @Blacksmoke16)

Tools

Formatter: Handle (-> ) correctly (#10945, thanks @HertzDevil)
Use markd for markdown rendering in the compiler (#11040, thanks @straight-shoota)
Formatter: Handle leading tuple literals in multi-expression return/break/next properly (#10597, thanks @HertzDevil)
Include parent headings in anchor links (#9839, thanks @Blacksmoke16)
Fix formatting nested multiline array and tuple (#11153, thanks @MakeNowJust)
crystal init: Improve transformation of project name with hyphens (#11170, thanks @Kanezoh)
Fix formatting generic types with suffix (#11187, thanks @MakeNowJust)
Make WARNING an admonition keyword (#10898, thanks @HertzDevil)
Refactor hierarchy printers (#10791, thanks @HertzDevil)

Other

Fix typos (#11045, #11163, #11138, hanks @toshokan, thanks @MakeNowJust, thanks @schmijos)
Update readme to point to IRC channel on libera.chat (#11024, thanks @jhass)
[CI] Update ruby-install (#11276, thanks @straight-shoota)
[CI] Remove test_linux_32 and add smoke test for 32-bit gnu (#11127, thanks @straight-shoota)
[CI] Remove obsolete package_build workflow (#11240, thanks @straight-shoota)
[CI] Add build matrix with 1.0.0 and 1.1.1 (#11278, thanks @straight-shoota)
[CI] Update aarch64.yml (#11160, thanks @beta-ziliani)
[CI] Update distribution-scripts (universal darwin & demote alpine to 3.12) (#11228, thanks @bcardiff)
Update shards 0.16.0 (#11292, thanks @straight-shoota)
Update previous release Crystal 1.1.0 (#10955, thanks @straight-shoota)
Merge changelog entry for 1.1.1 (#11028, thanks @straight-shoota)
Update previous release Crystal 1.1.1 (#11053, thanks @straight-shoota)
PR template (#10894, thanks @beta-ziliani)
Add github-changelog script (#11155, thanks @straight-shoota)
Add make install (#10878, thanks @straight-shoota)
[CI] Sanitize version from branch name (#11294, thanks @straight-shoota)
Update libgc to 8.2.0 (#11293, thanks @straight-shoota)
[CI] Unify maintenance_release and tagged_release workflows (#11273, thanks @straight-shoota)
[CI] Update distribution-scripts (make install) (#11307, thanks @straight-shoota)
[CI] Enable publish docker images on tagged release (#11309, thanks @straight-shoota)
[CI] Update distribution-scripts (fix for libgc in alpine Docker image) (#11310, thanks @straight-shoota)
[CI] Pin macOS runner to 10.15 (#11282, thanks @straight-shoota)
[CI] Fix push_obs_nightly (#11301, thanks @straight-shoota)
[CI] Update distribution-scripts (#11285, thanks @straight-shoota)
[CI] Remove i386 builds (#11287, thanks @straight-shoota)

1.1.1 (2021-07-26)

Language changes

Revert name of top-level module to main (#10993, thanks @beta-ziliani)

Standard Library

Fix missing required args for Socket::Addrinfo::Error.new (#10960, thanks @straight-shoota)
Fix disable unnecessary spec on win32 (#10971, thanks @straight-shoota)
Remove incorrect type restrictions on index methods with offset (#10972, thanks @straight-shoota)
Fix: documentation of #step in Number and Char (#10966, #11006, thanks @beta-ziliani and @straight-shoota)

Compiler

Fix parsing macro body with escaped backslash in literal (#10995, thanks @straight-shoota)

Other

Updating aarch64 actions to use 1.0.0 images (#10976, thanks @beta-ziliani)

1.1.0 (2021-07-14)

Language changes

Support splat expansions inside tuple and array literals. (#10429, thanks @HertzDevil)
Support breaks with values inside while expressions. (#10566, thanks @HertzDevil)

Macros

Add @top_level to access the top-level scope in macros. (#10682, thanks @beta-ziliani)
Fix: preserve integer sizes in NumberLiteral#int_bin_op. (#10713, thanks @collidedscope)
Add NumberLiteral#to_number. (#10802, thanks @straight-shoota)
(breaking-change) Add Crystal::Macros::Path#global? deprecating the old Crystal::Macros::Path#global. (#10812, thanks @HertzDevil)
Minor fixes to docs of UnaryExpression macro nodes. (#10816, thanks @HertzDevil)
Add macro method ASTNode#nil?. (#10850, #10616, thanks @straight-shoota)

Standard library

Global changes

Windows support

Port Socket::Address to win32 . (#10610, thanks @straight-shoota)
Port Socket::Addrinfo to win32. (#10650, thanks @straight-shoota)
Extract system-specifics from Socket. (#10706, thanks @straight-shoota)
Make WinError portable and add it to prelude. (#10725, thanks @straight-shoota)
Improve portability of SystemError. (#10726, thanks @straight-shoota)
Refactor Socket::Addrinfo::Error based on os_error . (#10761, thanks @straight-shoota)
Add WinError.wsa_value and specs for WinError. (#10762, thanks @straight-shoota)
Add specs for Errno. (#10763, thanks @straight-shoota)
Refactor: Move win32 libc bindings from winbase.cr to appropriate files. (#10771, thanks @straight-shoota)
Refactor: Change protocol socket fd to Socket::Handle. (#10772, thanks @straight-shoota)
Fix Socket::Connect error in addrinfo inherit os_error. (#10782, thanks @straight-shoota)
Reorganize some win32 libc bindings (#10776, thanks @straight-shoota)

Type annotations

Add type restriction to private Process constructor. (#7040, thanks @z64)
Add various return type restrictions (thanks @oprypin, @straight-shoota, and @caspiano): #10578, #10579, #10580, #10581, #10582, #10583, #10584, #10585, #10586, #10587, #10588, #10849, #10856, #10857, #10858, #10905
Add type restrictions for splat-less overloads of some methods. (#10594, thanks @HertzDevil)

Numeric

Add Number.new overload for String. (#10422, thanks @Blacksmoke16)
Fix Math.pw2ceil for zero and 64-bit integers. (#10555, thanks @straight-shoota)
Add #positive? & #negative? to Number and Time::Span. (#10601, thanks @Blacksmoke16)
Fix imprecise Number#significant algorithm. (#10615, thanks @straight-shoota)
Add BigFloat's rounding modes. (#10618, thanks @HertzDevil)
Fix handling of arithmetic overflow in BigDecimal#div. (#10628, thanks @kellydanma)
Clarify behaviour of unsafe Float-to-number conversions. (#10631, thanks @HertzDevil)
Fix return type restriction for Number#humanize overload. (#10633, thanks @HertzDevil)
Fix printf float with many digits. (#10719, thanks @straight-shoota)
Add BigDecimal's missing rounding modes. (#10798, thanks @HertzDevil)
Add support for using big rational #** with unsigned ints. (#10887, thanks @stakach)
Add overflow detection to BigFloat#to_i64 and #to_u64. (#10630, thanks @HertzDevil)

Text

(performance) Optimize Levenshtein.distance. (#8324, thanks @r00ster91)
Refactor: add private Slice#hexdump(io : IO) overload. (#10496, thanks @HertzDevil)
Restrict MatchData#begin and #end to Int32. (#10656, thanks @straight-shoota)
Refactor: remove #check_needs_resize from IO::Memory, String::Builder. (#10732, thanks @straight-shoota)
Fix Base64#encode, exclude last 3 bytes from bswap. (#10752, thanks @kostya)
Refactor: avoid union type in Char::Reader#decode_char_at. (#10758, thanks @asterite)

Collections

Add sub/superset checking methods to Hash. (#7500, thanks @Sija)
Improve documentation of Array#[](Range). (#10243, thanks @straight-shoota)
Add Steppable module as generalized Number#step. (#10279, thanks @straight-shoota)
Add docs for #map_with_index. (#10512, thanks @wontruefree)
Add Array#truncate. (#10712, thanks @HertzDevil)
Fix: Always copy Hash's default block on #dup and #clone. (#10744, thanks @HertzDevil)
Apply Array#push's resizing heuristic to #unshift. (#10750, thanks @HertzDevil)
Refactor index / count normalization in range-like methods. (#10753, thanks @HertzDevil)
Add methods for cumulative folding and prefix sums. (#10789, thanks @HertzDevil)
Fix: Pass read-only flag to peeked slice in IO::Memory. (#10891, thanks @z64)

Crypto

Add methods for getting peer certificates and signatures in OpenSSL. (#8005, thanks @will)
Add docs for OpenSSL::Cipher. (#9934, thanks @sol-vin)
Fix format of src/openssl/cipher.cr. (#10705, thanks @straight-shoota)
Refine documentation for Random#urlsafe_base64. (#10724, thanks @straight-shoota)
Fix ssl context required for add_x509_verify_flags. (#10756, thanks @stakach)

Time

Improve error handling for load_localtime on unix. (#10654, thanks @straight-shoota)
Fix broken call to Time#to_s. (#10778, thanks @straight-shoota)
Fix Time#shift cover date boundaries with zone offset. (#10871, thanks @straight-shoota)

Files

Fix and unify documentation for puts. (#10614, thanks @straight-shoota)
Fix Path#sibling return type. (#10655, thanks @Sija)
Add Path in FileUtils's methods to match the interfaces it's wrapping. (#10747, thanks @yb66)
Fix FileDescriptor#pos return Int64 on armv6 (#10845, thanks @straight-shoota)

Fibers

Clarify documentation on Path#join and #==. (#10455, thanks @straight-shoota)

Networking

Add an example middleware for remote_address. (#10408, thanks @oprypin)
Add OAuth2::Client#http_client. (#10452, thanks @straight-shoota)
Fix undefined constant error for http/params. (#10537, thanks @stakach)
Fix looping forever at 100% CPU if socket is closed. (#10658, thanks @didactic-drunk)
Fix documentation of HTTP::Cookies#[]= empty path. (#10669, thanks @straight-shoota)
Fix handling of EAI_SYSTEM for getaddrinfo. (#10757, thanks @straight-shoota)
(performance) Cache socket.local_address and socket.remote_address. (#10765, thanks @lbguilherme)
Fix: IO::ARGF#read should always return i32. (#10828, thanks @stakach)
Fix HTTP::Cookie parse quoted cookie value. (#10853, thanks @straight-shoota)
Add Socket::Addrinfo#inspect (#10775, thanks @straight-shoota)

System

Fix sentence structure in process.cr. (#9259, thanks @matthewmcgarvey)

Runtime

Implement segfault handler in Crystal. (#10463, thanks @maxfierke)
Improve documentation for Pointer.malloc and GC methods. (#10644, thanks @straight-shoota)
Add links to literal types in the language reference. (#10827, thanks @straight-shoota)

Serialization

Add docs for some json methods. (#10257, thanks @rdp)
Add UUID.from_json_object_key?. (#10517, thanks @kalinon)
Fix JSON::Lexer's UTF-16 escape sequence parsing. (#10450, thanks @HertzDevil)
Fix YAML::Serializable.use_yaml_discriminator with typed enum. (#10460, thanks @straight-shoota)
Fix YAML to not parse empty string as nil. (#10608, thanks @straight-shoota)
Add UUID to yaml parsing. (#10715, thanks @kalinon)
Fix double flushing json/yaml builders. (#10716, thanks @matthewmcgarvey)

Specs

Add spec helper it_iterates for iteration methods. (#10158, #10797, thanks @straight-shoota)
Add usage instructions for spec runner to compiler. (#10046, thanks @straight-shoota)
Fix: Handle invalid option errors on crystal spec. (#10787, thanks @hugopl)
Include spec/** in docs_main. (#10863, thanks @straight-shoota)

Compiler

Add support for type var splats inside Tuple during generic parameter substitution. (#10232, thanks @HertzDevil)
Fix: consider free vars in parameters of abstract def implementations before existing types, in particular fixing the creation of empty types. (#10503, thanks @HertzDevil)
Replace Crystal::Type#covariant? with #implements? (#10507, thanks @HertzDevil)
Fix error message when default parameter value doesn't match non-type restriction. (#10515, thanks @HertzDevil)
Fix type restriction logic for generic module instances. (#10519, thanks @HertzDevil)
Fix logic for subclass restricted against uninstantiated nested generic superclass. (#10522, #10560, thanks @HertzDevil)
Fix: eliminate extraneous types in certain non-commutative unions. (#10527, thanks @HertzDevil)
Fix: exclude variables' final types inside while true if re-assigned before first break. (#10538, thanks @HertzDevil)
Make Pointer(T)#value= even stricter for generic arguments. (#10553, thanks @HertzDevil)
Fix body locations for def nodes that have default args . (#10619, thanks @oprypin)
Fix call nodes' location after transforming its splats. (#10620, thanks @oprypin)
Fix check_type_allowed_as_proc_argument to show the type name. (#10688, thanks @straight-shoota)
Add free variables to "no overload matches" errors. (#10692, thanks @HertzDevil)
Fix: make virtual unbound types also unbound. (#10704, thanks @HertzDevil)
Fix: run instance variable initializers on instantiated generic superclasses only. (#10729, thanks @HertzDevil)
Fix: allow previous_def to init superclass's non-nilable ivars. (#10733, thanks @HertzDevil)
Fix: Use only last sub-expression of Expressions nodes for conditional type filters. (#10738, thanks @HertzDevil)
Fix: Don't compute type filters inside typeof's argument. (#10739, thanks @HertzDevil)
Fix: Devirtualize types in TypeNode#==(other : TypeNode) and #!=. (#10742, thanks @HertzDevil)
Fix exit types of variables assigned inside while conditions. (#10759, thanks @HertzDevil)
Fix logic for responds_to? of generic module instances. (#10760, thanks @HertzDevil)
Add support for accessing a common value of a union type. (#10770, thanks @asterite)
Fix subtype relation when generic type variable is a virtual abstract struct. (#10779, thanks @HertzDevil)
Fix array literals consisting entirely of splat expansions. (#10792, thanks @HertzDevil)
Fix parsing macro literal containing char literal. (#10799, thanks @straight-shoota)
Refactor: Use type instead of is_a? in filters. (#10815, thanks @caspiano)
Expand named macro expression arguments before outer macro call expansion. (#10819, thanks @HertzDevil)
Be more strict about printing operator calls as short forms. (#10825, thanks @HertzDevil)
Fix union logic between metaclasses of uninstantiated generic classes in same hierarchy. (#10832, thanks @HertzDevil)
Fix uninstantiated generic classes casting to themselves. (#10883, thanks @HertzDevil)
Allow underscore in block return type even if the type can't be computed (#10933, thanks @asterite)
Fix parser identifies call with named args as var (#10842, thanks @straight-shoota)

Tools

Formatter

Fix: allow trailing space in parenthesized unions. (#10595, thanks @HertzDevil)
Fix: don't consume newline after endless range literals. (#10596, thanks @HertzDevil)
Fix indentation of heredocs relative to delimiter. (#10806, thanks @HertzDevil)
Fix heredoc indent with outer indent. (#10867, thanks @straight-shoota)

Doc generator

Fix escaping of argument lists in doc generator, expose JSON. (#10109, #10821, thanks @oprypin and @Sija)
Print named generic type arguments of type restrictions in docs. (#10424, thanks @HertzDevil)
Fix: respect overload order between methods. (#10609, thanks @HertzDevil)
Fix PropagateDocVisitor visit macro def. (#10634, thanks @straight-shoota)
Fix: remove superclass from ASTNode in API docs. (#10664, thanks @beta-ziliani)
(breaking-change) Remove deprecated ditto doc directive. (#10755, thanks @caspiano) (Note that it was scheduled for removal since 0.34)
Fix: Restrict macro types' ancestors to ASTNode. (#10722, thanks @HertzDevil)
Fix docs generator search use html_id. (#10875, thanks @straight-shoota)
Fix --sitemap-priority, --sitemap-changefreq. (#10906, thanks @HertzDevil)

Others

CI: Update to use 1.0.0. (#10533, thanks @bcardiff)
Bump distribution-scripts. (#10639, #10673, #10754, thanks @straight-shoota and @bcardiff)
Fix contribution instructions. (#10558, thanks @straight-shoota)
Remove .dockerignore. (#10642, thanks @miry)
Add section about pull requests to the contributing guide. (#10683, thanks @straight-shoota)
Publish nightly builds to OBS. (#10684, thanks @straight-shoota)
Remove broken travis.yml config from crystal init. (#10800, thanks @straight-shoota)
Disable broken test_darwin job on circleci. (#10823, thanks @straight-shoota)
Update distribution-scripts for shards 0.15.0. (#10862, thanks @straight-shoota)
Add smoke tests for platforms where we don't run full tests (#10848, thanks @straight-shoota)

1.0.0 (2021-03-22)

Language changes

Support Tuple#[](Range) with compile-time range literals. (#10379, thanks @HertzDevil)

Macros

Don't use named argument key names as parameters for method_missing calls. (#10388, thanks @HertzDevil)

Standard library

(breaking-change) Drop deprecated definitions. (#10386, thanks @bcardiff)
Fix example codes in multiple places. (#10505, thanks @maiha)

Macros

(breaking-change) Always add explicit return types in getter/property macros. (#10405, thanks @Sija)

Numeric

(breaking-change) Change default rounding mode to TIES_EVEN. (#10508, thanks @straight-shoota)
Fix downcasting float infinity. (#10420, thanks @straight-shoota)
Fix String#to_f out of range behaviour. (#10425, thanks @straight-shoota)
Implement rounding mode for Number#round. (#10413, #10360, #10479, thanks @straight-shoota)

Text

Add missing unicode whitespace support to String methods. (#10367, thanks @straight-shoota)

Collections

Fix Range#== to ignore generic type arguments. (#10309, thanks @straight-shoota)
Make Enumerable#flat_map, Iterator#flat_map work with mixed element types. (#10329, thanks @HertzDevil)
Remove duplicated sort related specs. (#10208, thanks @MakeNowJust)
Fix docs regarding Set#each return type. (#10477, thanks @kachick)
Fix docs examples regarding Set#*set_of?. (#10285, thanks @oddp)
Fix expectation on set specs. (#10482, thanks @kachick)

Serialization

(breaking-change) Serialize Enum to underscored String by default. (#10431, thanks @straight-shoota, @caspiano)
(breaking-change) Use class instead of struct for types in XML module. (#10436, thanks @hugopl)
Add YAML::Nodes::Node#kind. (#10432, thanks @straight-shoota)

Files

Let IO::Memory not be writable with read-only Slice. (#10391, thanks @straight-shoota)
Allow Int64 values within IO#read_at. (#10356, thanks @Blacksmoke16)
Add IO::Sized#remaining=(value) to reuse an existing instance. (#10520, thanks @jgaskins)

Networking

(security) Remove Cookie Name Decoding. (#10442, thanks @security-curious)
(breaking-change) Remove implicit en-/decoding for cookie values. (#10485, thanks @straight-shoota)
(breaking-change) Split HTTP::Cookies.from_headers into separate methods for server/client. (#10486, thanks @straight-shoota)
(performance) Minor performance improvements to HTTP::Cookies. (#10488, thanks @straight-shoota)
Respect subclasses when constructing HTTP::Client from class methods. (#10375, thanks @oprypin)
Make the content-length header more RFC compliant. (#10353, thanks @Blacksmoke16)
Fix #respond_with_status when headers written or closed. (#10415, thanks @straight-shoota)
Fix Cookie#== to take all ivars into account. (#10487, thanks @straight-shoota)
Remove implicit path=/ from HTTP::Cookie. (#10491, thanks @straight-shoota)
Add HTTP::Request#local_address. (#10385, thanks @carlhoerberg)

Logging

Close AsyncDispatcher on #finalize. (#10390, thanks @straight-shoota)

System

Fix Process.parse_argument behavior against a quote in a word. (#10337, thanks @MakeNowJust)
Add aarch64 support for macOS/darwin targets. (#10348, thanks @maxfierke, @RomainFranceschini)
Add LibC::MAP_ANONYMOUS to x86_64-darwin to match other platforms. (#10398, thanks @sourgrasses)

Runtime

Improve error message for ELF reader on uninitialized runtime. (#10282, thanks @straight-shoota)

Compiler

(breaking-change) Disallow surrogate halves in escape sequences of string and character literals, use \x for arbitrary binary values. (#10443, thanks @HertzDevil)
Fix ICE when exhaustive in-clause calls pseudo-method. (#10382, thanks @HertzDevil)
Fix ICE when parsing foo.% calls. (#10351, thanks @MakeNowJust)
Fix edge cases for symbol quoting rules. (#10389, thanks @HertzDevil)
Support closured vars inside Const initializer. (#10478, thanks @RX14)
Documentation grammar fix. (#10369, thanks @szTheory)

Language semantics

Don't fail on untyped is_a?. (#10320, thanks @asterite)
Fix named arguments in super and previous_def calls. (#10400, thanks @HertzDevil)
Fix assignments in array literals. (#10009, thanks @straight-shoota)
Consider type var splats in generic type restrictions. (#10168, thanks @HertzDevil)
Align Proc.new(&block)'s behaviour with other captured blocks. (#10263, thanks @HertzDevil)
Don't merge NamedTuple metaclasses through instance types. (#10501, thanks @HertzDevil)
Access instantiations of NamedTuple and other generics uniformly. (#10401, thanks @HertzDevil)
Improve error message for auto-cast error at Var assign. (#10327, thanks @straight-shoota)
Exclude abstract defs from "no overload matches" errors. (#10483, thanks @HertzDevil)
Support splats inside tuple literals in type names. (#10430, thanks @HertzDevil)
Accept pointer instance types on falsey conditional branches. (#10464, thanks @HertzDevil)
Match named arguments by external parameter names when checking overload cover. (#10530, thanks @HertzDevil)

Doc generator

Detect source locations in more situations. (#10439, thanks @oprypin)

Others

CI improvements and housekeeping. (#10299, #10340, #10476, #10480, thanks @bcardiff, @Sija, @straight-shoota)
Update distribution-scripts to use Shards v0.14.1. (#10494, thanks @bcardiff)
Add GitHub issue templates. (#8934, thanks @j8r)
Add LLVM 11.1 to the list of supported versions. (#10523, thanks @Sija)
Fix SDL examples crashes. (#10470, thanks @megatux)

0.x

Older entries in CHANGELOG.0.md

Files

CHANGELOG.md

Latest commit

History

CHANGELOG.md

File metadata and controls

1.10.1 (2023-10-13)

Bugfixes

stdlib

Infrastructure

1.10.0 (2023-10-09)

Features

lang

stdlib

compiler

tools

Bugfixes

lang

stdlib

compiler

tools

Performance

stdlib

Refactor

stdlib

compiler

Documentation

stdlib

Specs

stdlib

Infrastructure

1.9.2 (2023-07-19)

Bugfixes

stdlib

1.9.1 (2023-07-17)

Bugfixes

stdlib

compiler

1.9.0 (2023-07-11)

Breaking changes

stdlib

Features

lang

stdlib

compiler

tools

Bugfixes

stdlib

compiler

tools

Performance

stdlib

tools

Refactor

stdlib

compiler

Documentation

stdlib

compiler

other

Specs

stdlib

compiler

Infrastructure

1.8.2 (2023-05-08)

Standard Library

Collection

Log

Serialization

Text

Compiler

Codegen

Other

1.8.1 (2023-04-20)

Standard Library

Serialization

Text

1.8.0 (2023-04-14)

Language

Standard Library