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`LibC::PidT` and `Process.initialize` on Windows

status:discussion

#16929

· vspefs opened

on May 8, 2026

`#compact_map` can't be used on `EmptyIterator`: "expected argument #2 to … to be Proc(X, Nil), not Proc(X, X)`

topic:stdlib:collection

#16922

· spuun opened

on May 7, 2026

`HTTP::Client#exec` fails on closed socket with "can't rewind" if `request.body` is not rewindable

#16920

· jgaskins opened

on May 5, 2026

lib declarations are dependent on code order

topic:compiler:parser

#16918

· LoadingBG opened

on May 4, 2026

Macro `#resolve` on another def's parameter restriction picks up freevars from the wrong scope

topic:lang:macros

#16913

· Blacksmoke16 opened

on May 2, 2026

Block type constraint in `Sync::Mutex#synchronize` confuses the compiler

kind:regression

topic:stdlib:runtime

#16903

· ysbaddaden opened

on Apr 30, 2026

`-Os` and `-Oz` will be removed in LLVM 23

topic:compiler:codegen

topic:stdlib:llvm

#16895

· HertzDevil opened

on Apr 27, 2026

minor: warning: relating to object file built for newer macOs version than being linked

platform:darwin

status:discussion

#16887

· michael-byo opened

on Apr 26, 2026

SSL regression in 1.20.0

kind:regression

topic:stdlib:networking

#16881

· ambyjkl opened

on Apr 24, 2026

Add `ignore` and `ignore_deserialize` properties to `URI::Params::Field`

topic:stdlib:serialization

#16873

· Fijxu opened

on Apr 23, 2026

crystal tool format does not preserve manual alignment for named arguments in method calls

topic:tools:formatter

#16872

· zw963 opened

on Apr 23, 2026

Run debugger tests in CI

topic:compiler:debugger

topic:infrastructure/ci

#16861

· straight-shoota opened

on Apr 21, 2026