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 approriate 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 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)
• Fix variance checks between generic instances for Proc#call and abstract defs. (#10507, #10899, 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)