Issues

Symbol.methodMembers and fieldMembers order changes between compilations of the same sources

scala/scala3#27368 · opened

on Oct 21, 2026

2

-Yexplicit-nulls cannot infer non-nullness inside of a tuple match

scala/scala3#27362 · opened

on Oct 21, 2026

1

Exhaustivity check of inlined tuple matches takes 70+ s per call site once the Scala 3.8 standard library is on the classpath

scala/scala3#27360 · opened

on Oct 21, 2026

Inline accessor of a private `val` loses path-dependent types, causing `ExprCastException` in macros

scala/scala3#27355 · opened

on Oct 20, 2026

what a wildcard export exports depends on file order

scala/scala3#27354 · opened

on Oct 20, 2026

dotc shortens a class name before encoding it

Bug

scala/scala3#27351 · opened

on Oct 20, 2026

Witness of generic type with upper bound is treated as upper bound instead of Nothing

scala/scala3#27340 · opened

on Oct 19, 2026

False E121 warning for a Java sealed generic interface with raw permitted subclasses

scala/scala3#27339 · opened

on Oct 19, 2026

1

Scaladoc should not show deprecation warnings in snippets for the deprecated element

scala/scala3#27338 · opened

on Oct 19, 2026

Local lazy val holder is `Mutable`; CapturedVars boxes it in an `ObjectRef` unless fused with LazyVals

scala/scala3#27334 · opened

on Oct 18, 2026

3.10.1-RC1 release procedure

scala/scala3#27333 · opened

on Oct 18, 2026

1

CC: Investigate a Classifier for Global Capabilities

scala/scala3#27332 · opened

on Oct 18, 2026

1

CC: Separation of capture set parameters is not checked when they are instantiated

scala/scala3#27331 · opened

on Oct 17, 2026

CC: Update method called through a capture set parameter instantiated with a read-only capability

scala/scala3#27330 · opened

on Oct 17, 2026

CC: Capture set bounds of polymorphic functions are not enforced

scala/scala3#27329 · opened

on Oct 17, 2026

Unify Array between library and library-js

scala/scala3#27317 · opened

on Oct 16, 2026

Java subclasses of AbstractPartialFunction fail to compile against 3.10.0: inconsistent runWith generic signature

scala/scala3#27307 · opened

on Oct 14, 2026

3

Patmat can accumulate type constraints that result in O(N^2) compile times

scala/scala3#27301 · opened

on Oct 14, 2026

Regression in halotukozak-com/mcodec - unpickled polyfunction does not take parameters

scala/scala3#27298 · opened

on Oct 13, 2026

2

AnyVal introduces type system and runtime type-safety holes

scala/scala3#27278 · opened

on Oct 10, 2026

1

`java.lang.AssertionError: assertion failed: method $anonfun` (in Pickler), and a wrong `Nothing does not take type parameters` with a change

scala/scala3#27267 · opened

on Oct 9, 2026

encountered Type Mismatch at eta-expansion of methods with inter-parameter dependencies

scala/scala3#27266 · opened

on Oct 9, 2026

Class compiled apart from a trait with only lazy members omits the $init$ call (NoInits differs between source and TASTy)

scala/scala3#27265 · opened

on Oct 9, 2026

Consumed objects stay accessible as read-only

scala/scala3#27260 · opened

on Oct 9, 2026

Scala 3 Reference link goes to unversioned variant of the page

scala/scala3#27249 · opened

on Oct 7, 2026

1

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Issues

Symbol.methodMembers and fieldMembers order changes between compilations of the same sources

-Yexplicit-nulls cannot infer non-nullness inside of a tuple match

Exhaustivity check of inlined tuple matches takes 70+ s per call site once the Scala 3.8 standard library is on the classpath

Inline accessor of a private `val` loses path-dependent types, causing `ExprCastException` in macros

what a wildcard export exports depends on file order

dotc shortens a class name before encoding it

Witness of generic type with upper bound is treated as upper bound instead of Nothing

False E121 warning for a Java sealed generic interface with raw permitted subclasses

Scaladoc should not show deprecation warnings in snippets for the deprecated element

Local lazy val holder is `Mutable`; CapturedVars boxes it in an `ObjectRef` unless fused with LazyVals

3.10.1-RC1 release procedure

CC: Investigate a Classifier for Global Capabilities

CC: Separation of capture set parameters is not checked when they are instantiated

CC: Update method called through a capture set parameter instantiated with a read-only capability

CC: Capture set bounds of polymorphic functions are not enforced

Unify Array between library and library-js

Java subclasses of AbstractPartialFunction fail to compile against 3.10.0: inconsistent runWith generic signature

Patmat can accumulate type constraints that result in O(N^2) compile times

Regression in halotukozak-com/mcodec - unpickled polyfunction does not take parameters

AnyVal introduces type system and runtime type-safety holes

`java.lang.AssertionError: assertion failed: method $anonfun` (in Pickler), and a wrong `Nothing does not take type parameters` with a change

encountered Type Mismatch at eta-expansion of methods with inter-parameter dependencies

Class compiled apart from a trait with only lazy members omits the $init$ call (NoInits differs between source and TASTy)

Consumed objects stay accessible as read-only

Scala 3 Reference link goes to unversioned variant of the page