Crystal 1.22.0 released!

NewsBot · 12 October 2026 15:23

Crystal 1.22.0 has been released.

Breaking changes

stdlib

(system) Drop Process.fork (#17367, thanks @straight-shoota)

Features

lang

Allow constants with type declarations (#16951, thanks @stakach)

(macros) Add StringLiteral#bytesize (#17176, thanks @straight-shoota)

(macros) Add NumberLiteral#chr (#17169, thanks @straight-shoota)

(macros) Support CharLiteral in RangeLiteral#each (#17170, thanks @straight-shoota)

stdlib

Add warning about minimum supported Crystal version in prelude ([#17349], thanks @straight-shoota)

(crypto) Enable OpenSSL Kernel TLS support by default ([#17059], thanks @ysbaddaden)

(crypto) Add OpenSSL::Cipher#gcm_tag and #gcm_tag= for AEAD ciphers ([#17096], thanks @paulocoghi)

(files) Add IO::Memory#writable? ([#17167], thanks @spuun)

(llvm) Support LLVM 23.1 and 24.0 ([#17432], thanks @HertzDevil)

(macros) Add all enum types to Enum’s list of subclasses ([#17425], thanks @HertzDevil)

(networking) Add HTTP::Context#remote_address, #local_address ([#17196], thanks @straight-shoota)

(networking) Validate method, version, and host in HTTP::WebSocketHandler ([#17235], thanks @hahwul)

(networking) HTTP::Client::Request support Content-Encoding: x-gzip ([#17263], thanks @straight-shoota)

(networking) Add HTTP::Headers#merge ([#17326], thanks @jgaskins)

(networking) Serialize IO::Memory in HTTP body with Content-Length header ([#17388], thanks @straight-shoota)

(runtime) Add GC.syscall(&) ([#17150], thanks @ysbaddaden)

(runtime) Add Thread#wait and Thread#wake methods ([#17226], [#17243], [#17247], …

Link: Release 1.22.0 · crystal-lang/crystal · GitHub