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Parsing <code>enum</code> with an explicit int type and a comment fails to parse on 1.18.0

kind:bugA bug in the code. Does not apply to documentation, specs, etc.A bug in the code. Does not apply to documentation, specs, etc.

kind:regressionSomething that used to correctly work but no longer worksSomething that used to correctly work but no longer works

Status: Open.

Bug

#16213 In crystal-lang/crystal;

· jgaskins opened on Oct 14, 2025

Interpreter segfault when resuming fiber from nilable ivar

kind:bugA bug in the code. Does not apply to documentation, specs, etc.A bug in the code. Does not apply to documentation, specs, etc.

topic:compiler:interpreter

Status: Open.

Bug

#16210 In crystal-lang/crystal;

· ysbaddaden opened on Oct 14, 2025

Make <code>Channel</code> an <code>Iterator</code>

kind:feature

Status: Open.

Feature

#16205 In crystal-lang/crystal;

· jgaskins opened on Oct 13, 2025

ICE when instantiating <code>Void</code> type

ICEInternal Compiler ErrorInternal Compiler Error

kind:bugA bug in the code. Does not apply to documentation, specs, etc.A bug in the code. Does not apply to documentation, specs, etc.

topic:compiler:codegen

Status: Open.

Bug

#16204 In crystal-lang/crystal;

· straight-shoota opened on Oct 11, 2025

<code>Slice.new</code> without init value should work with <code>Pointer</code> types instead of only <code>Number::Primitive</code>

kind:feature

topic:stdlib:collection

Status: Open.

Feature

#16203 In crystal-lang/crystal;

· straight-shoota opened on Oct 11, 2025

Crystal compiler error: Splat, IndexError

kind:bugA bug in the code. Does not apply to documentation, specs, etc.A bug in the code. Does not apply to documentation, specs, etc.

topic:compiler:parser

Status: Open.

Bug

#16180 In crystal-lang/crystal;

· stefangimmillaro opened on Sep 29, 2025

The <code>ThreadLocal</code> annotation isn't portable (but it could)

kind:feature

topic:lang:annotations

topic:multithreading

topic:stdlib:llvm

Status: Open.

Feature

#16176 In crystal-lang/crystal;

· ysbaddaden opened on Sep 28, 2025

Tag naming scheme

status:discussion

topic:infrastructure

Status: Open.

#16163 In crystal-lang/crystal;

· straight-shoota opened on Sep 22, 2025

Percent string literal with curly/angle delimiters is parsed confusingly in macro

kind:bugA bug in the code. Does not apply to documentation, specs, etc.A bug in the code. Does not apply to documentation, specs, etc.

topic:compiler:parser

Status: Open.

Bug

#16159 In crystal-lang/crystal;

· homonoidian opened on Sep 18, 2025

<code>Random::DEFAULT</code> is thread unsafe

kind:bugA bug in the code. Does not apply to documentation, specs, etc.A bug in the code. Does not apply to documentation, specs, etc.

topic:multithreading

Status: Open.

Bug

#16157 In crystal-lang/crystal;

· ysbaddaden opened on Sep 18, 2025

Set <code>JSON::SerializableError#attribute</code> when attribute is missing during parsing

kind:feature

topic:stdlib:serialization

Status: Open.

Feature

#16156 In crystal-lang/crystal;

· spuun opened on Sep 18, 2025

Formatter makes long case statements harder to maintain

kind:feature

status:discussion

topic:tools:formatter

Status: Open.

Bug

#16152 In crystal-lang/crystal;

· plambert opened on Sep 13, 2025