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Derived instances fail to discover <code>given</code>s in the type's companion object

itype:bug

stat:needs triageEvery issue needs to have an "area" and "itype" labelEvery issue needs to have an "area" and "itype" label

Status: Open.

#23897 In scala/scala3;

· mrdziuban opened on Sep 10, 2025

Macro matches opaque types differently with safe initialization enabled

itype:bug

stat:needs triageEvery issue needs to have an "area" and "itype" labelEvery issue needs to have an "area" and "itype" label

Status: Open.

#23894 In scala/scala3;

· johnhungerford opened on Sep 10, 2025

Error "recursive value needs type" when named tuple used with single field

itype:bug

stat:needs triageEvery issue needs to have an "area" and "itype" labelEvery issue needs to have an "area" and "itype" label

Status: Open.

#23893 In scala/scala3;

· road21 opened on Sep 10, 2025

Investigate JEP 401: Value Classes and Objects (Preview)

Status: Open.

#23892 In scala/scala3;

· He-Pin opened on Sep 10, 2025

Separation checking does not work well for mutable variables with cap types

stat:needs triageEvery issue needs to have an "area" and "itype" labelEvery issue needs to have an "area" and "itype" label

Status: Open.

#23889 In scala/scala3;

· odersky opened on Sep 9, 2025

Scala 3.8 <code>scala.util.Properties.versionNumberString</code> return empty String

area:libraryStandard libraryStandard library

area:tooling

itype:bug

Status: Open.

#23883 In scala/scala3;

· xuwei-k opened on Sep 6, 2025

Union type triggers conflictings definitions after erasure but normal generic argument does not

area:union-typesIssues tied to union types.Issues tied to union types.

itype:bug

regressionThis worked in a previous version but doesn't anymoreThis worked in a previous version but doesn't anymore

Status: Open.

#23882 In scala/scala3;

· WojciechMazur opened on Sep 5, 2025

StackOverflow generated by Pattern Matching

area:pattern-matching

itype:bug

Status: Open.

#23875 In scala/scala3;

· hamzaremmal opened on Sep 4, 2025

Function returning Nothing has over-specialised type in default parameter

area:typer

itype:bug

Status: Open.

#23873 In scala/scala3;

· katrinafyi opened on Sep 4, 2025

Scala3 incremental compiler doesn't properly detect which classes should be recompiled when using Scalatest macros

area:transform

itype:bug

Status: Open.

#23863 In scala/scala3;

· Zuchos opened on Sep 2, 2025

Macro usage is not invalidated

area:metaprogramming:otherIssues tied to metaprogramming/macros not covered by the other labels.Issues tied to metaprogramming/macros not covered by the other labels.

itype:bug

Status: Open.

#23852 In scala/scala3;

· OlegYch opened on Sep 1, 2025

CC: Objects with tracked members appear pure

area:experimental:ccCapture checking relatedCapture checking related

itype:bug

Status: Open.

#23850 In scala/scala3;

· bracevac opened on Sep 1, 2025