docs: Backport changelogs for 3.3.6

changelogs/3.3.6-RC1.md

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+# Highlights of the release
+
+- Partial Fix #21242: Add REPL init script setting [#22206](https://github.com/scala/scala3/pull/22206)
+- Update asm to patched 9.7.1 [#22250](https://github.com/scala/scala3/pull/22250)
+- REPL: Add back `:silent` command [#22248](https://github.com/scala/scala3/pull/22248)
+- Scala 2 forwardport: `-Yprofile-trace` [#19897](https://github.com/scala/scala3/pull/19897)
+
+# Other changes and fixes
+
+## Annotations
+
+- Make sure symbols in annotation trees are fresh before pickling [#22002](https://github.com/scala/scala3/pull/22002)
+- Fix Java parsing of annotations on qualified types [#21867](https://github.com/scala/scala3/pull/21867)
+- Rename `InlineCopier` to `ConservativeTreeCopier`, use it in `TypeMap`s [#21941](https://github.com/scala/scala3/pull/21941)
+- Consider all arguments in Annotations.refersToParamOf [#22001](https://github.com/scala/scala3/pull/22001)
+
+## Backend
+
+- Flag class file collision as error [#19332](https://github.com/scala/scala3/pull/19332)
+- Backend computes line number from source of position [#21763](https://github.com/scala/scala3/pull/21763)
+
+## CI
+
+- In CI, use new standard scala/cla-checker action [#22203](https://github.com/scala/scala3/pull/22203)
+- Cancel stale CI executions when CI is re-triggered in the same branch/PR [#21974](https://github.com/scala/scala3/pull/21974)
+- Drop support for old experimental in community-build [#21729](https://github.com/scala/scala3/pull/21729)
+
+## Coverage
+
+- Fix coverage serialization when encountering macro suspension  [#22303](https://github.com/scala/scala3/pull/22303)
+
+## Dependencies
+
+- Sbt 1.10.5 (was 1.9.9) [#20157](https://github.com/scala/scala3/pull/20157)
+- Scala 2.13.16 (was .15) [#22386](https://github.com/scala/scala3/pull/22386)
+
+## Desugaring
+
+- Fix #22051: only trust the type application part for case class unapplies [#22099](https://github.com/scala/scala3/pull/22099)
+
+## Documentation
+
+- Fix: typo in documentation for Tuple.zip [#22313](https://github.com/scala/scala3/pull/22313)
+- Copyright 2025 [#22326](https://github.com/scala/scala3/pull/22326)
+- Documentation only: update Example code linked to obsolete content in  macros-spec.md  [#22256](https://github.com/scala/scala3/pull/22256)
+- Doc fix, removed repeated use of the word with [#21915](https://github.com/scala/scala3/pull/21915)
+- Fix typos [#21913](https://github.com/scala/scala3/pull/21913)
+
+## Enums
+
+- Add type parameters derived from enum to default param getters of enum cases [#22157](https://github.com/scala/scala3/pull/22157)
+
+## Extension Methods
+
+- Add regression test for #22320 [#22321](https://github.com/scala/scala3/pull/22321)
+- Tweak ExtensionNullifiedByMember [#22268](https://github.com/scala/scala3/pull/22268)
+
+# Infrastructure
+
+- Improve, document and group versioning code in `Build.scala`  [#21837](https://github.com/scala/scala3/pull/21837)
+- Fix: drop jackson-module-scala from CB [#22353](https://github.com/scala/scala3/pull/22353)
+- Fix inductive-implicits benchmark [#22007](https://github.com/scala/scala3/pull/22007)
+- Remove tests/pos-with-compiler-cc from VSCode ignored files [#22198](https://github.com/scala/scala3/pull/22198)
+- Bump webrick from 1.8.2 to 1.9.1 in /docs/_spec [#22066](https://github.com/scala/scala3/pull/22066)
+- Fix Windows OS detection in TraceNameManglingTest [#21937](https://github.com/scala/scala3/pull/21937)
+- Don't warn for deprecated Thread.getId() calls in `ChromeTrace` [#21831](https://github.com/scala/scala3/pull/21831)
+- Improvement: Remove workaround for Bloop and update docs [#21842](https://github.com/scala/scala3/pull/21842)
+- Ensure ChromeTraceTest event timestamps are emitted in correct invervals [#21911](https://github.com/scala/scala3/pull/21911)
+- Remove tests/pos-with-compiler-cc [#21956](https://github.com/scala/scala3/pull/21956)
+- Shade scalajs.ir under dotty.tools [#21765](https://github.com/scala/scala3/pull/21765)
+
+## Implicits
+
+- Rollback constraints in compareAppliedTypeParamRef [#22339](https://github.com/scala/scala3/pull/22339)
+- Apply implicit conversion from derived Conversion instance defined as implicit rather than given [#21785](https://github.com/scala/scala3/pull/21785)
+
+## Imports
+
+- Allow imports nested in packagings to shadow [#21539](https://github.com/scala/scala3/pull/21539)
+
+## Inline
+
+- Fix inline reduction for CaseDef guards with asInstanceOf [#22305](https://github.com/scala/scala3/pull/22305)
+- Avoid using the current denotation in NamedType.disambiguate [#21414](https://github.com/scala/scala3/pull/21414)
+
+## Linting
+
+- Append instead of prepending import selectors for the current scope when collecting them in CheckUnused [#22314](https://github.com/scala/scala3/pull/22314)
+- Allow discarding "Discarded non-Unit" warnings with `: Unit` [#21927](https://github.com/scala/scala3/pull/21927)
+- Disallow open modifier on objects [#21922](https://github.com/scala/scala3/pull/21922)
+- Only count associated files of direct members of package objects in dropStale [#22190](https://github.com/scala/scala3/pull/22190)
+
+## Metaprogramming
+
+- Rethrow SuspendExceptions caught in CodeGen phase [#22009](https://github.com/scala/scala3/pull/22009)
+- Extend compiletime.testing.typechecks with certain transform phases [#21185](https://github.com/scala/scala3/pull/21185)
+
+# Match Types
+
+- Fix #21841: Check more that an `unapplySeq` on a `NonEmptyTuple` is valid. [#22366](https://github.com/scala/scala3/pull/22366)
+- Type avoidance in MT bound inference [#22142](https://github.com/scala/scala3/pull/22142)
+
+
+## Nullability
+
+- Fix #21619: Refactor NotNullInfo to record every reference which is retracted once. [#21624](https://github.com/scala/scala3/pull/21624)
+
+## Parser
+
+- Fix: don't consider `into` as a soft-modifier [#21924](https://github.com/scala/scala3/pull/21924)
+- Fix: Allow `as` as an infix type in non context bound types [#21849](https://github.com/scala/scala3/pull/21849)
+- Undo patch of double-block apply [#21982](https://github.com/scala/scala3/pull/21982)
+
+## Pattern Matching
+
+- (Re-)Drop inaccessible subclasses from refineUsingParent [#21930](https://github.com/scala/scala3/pull/21930)
+- Fix #21914: Don't project nested wildcard patterns to nullable [#21934](https://github.com/scala/scala3/pull/21934)
+- Fix use of class terms in match analysis [#21848](https://github.com/scala/scala3/pull/21848)
+- Fix provablyDisjoint handling enum constants with mixins [#21876](https://github.com/scala/scala3/pull/21876)
+- Do not consider uninhabited constructors when performing exhaustive match checking [#21750](https://github.com/scala/scala3/pull/21750)
+
+## Pickling
+
+- Avoid orphan param from default arg [#21824](https://github.com/scala/scala3/pull/21824)
+- Make sure definition tree has the defined symbol [#21851](https://github.com/scala/scala3/pull/21851)
+
+## Presentation Compiler
+
+- Use new infer expected type for singleton complations [#21421](https://github.com/scala/scala3/pull/21421)
+- Fix presentation compiler testcases [#22253](https://github.com/scala/scala3/pull/22253)
+- Fix match error in keyword completions [#22138](https://github.com/scala/scala3/pull/22138)
+- Add test cases project for presentation compiler [#22101](https://github.com/scala/scala3/pull/22101)
+- Improvement: Update mtags to 1.4.1 and backport remaining changes [#21859](https://github.com/scala/scala3/pull/21859)
+- Backport changes for the presentation compiler from Metals [#21756](https://github.com/scala/scala3/pull/21756)
+
+## Quotes
+
+- Fix tupleTypeFromSeq for XXL tuples [#21782](https://github.com/scala/scala3/pull/21782)
+- Do not bring forward symbols created in transform and backend phases [#21865](https://github.com/scala/scala3/pull/21865)
+- Fix #20471: owners of top-level symbols in cached quoted code being incorrect [#21945](https://github.com/scala/scala3/pull/21945)
+- Fix for macro annotation that resolves macro-based implicit crashing the compiler [#20353](https://github.com/scala/scala3/pull/20353)
+- Allow macro annotations to recover from suspension [#21969](https://github.com/scala/scala3/pull/21969)
+
+# REPL
+
+- REPL: JLine: follow recommendation to use JNI, not JNA; also JLine 3.27.1 (was 3.27.0) [#22205](https://github.com/scala/scala3/pull/22205)
+- Fix #9879: allow top-level opaque type definitions in REPL [#21753](https://github.com/scala/scala3/pull/21753)
+
+## Reflection
+
+- Do not return java outline dummy constructor in `primaryConstructor` [#22104](https://github.com/scala/scala3/pull/22104)
+
+## Reporting
+
+- Normalise the types for Type Mismatch Error (E007) [#22337](https://github.com/scala/scala3/pull/22337)
+- Do not warn about expected missing positions in quotes.reflect.Symbol [#21677](https://github.com/scala/scala3/pull/21677)
+- Add missing error messages to asserts in QuotesImpl [#21852](https://github.com/scala/scala3/pull/21852)
+- Don't point to the compiler backlog when a compiler plugin phase crashes [#21887](https://github.com/scala/scala3/pull/21887)
+- Nowarn extension matching nonpublic member [#21825](https://github.com/scala/scala3/pull/21825)
+- Fix: better error messages when an enum derives from AnyVal [#22236](https://github.com/scala/scala3/pull/22236)
+
+## Scaladoc
+
+- [ISSUE-#19208] If scaladocs on file protocol don't do SPA routing. [#22013](https://github.com/scala/scala3/pull/22013)
+- Fix scaladoc graph highlight background color in dark mode [#21814](https://github.com/scala/scala3/pull/21814)
+
+## SemanticDB
+
+- Extract semanticDB for lifted definitions [#21856](https://github.com/scala/scala3/pull/21856)
+
+## Specification
+
+- Align the spec to allow the  marker [#22323](https://github.com/scala/scala3/pull/22323)
+- Fix #20271: Bring for comprehension spec up to date. [#21702](https://github.com/scala/scala3/pull/21702)
+- Spec: Integrate the specification for match types. [#22164](https://github.com/scala/scala3/pull/22164)
+
+## Settings
+
+- Limit exposure to ConcurrentModificationException when sys props are replaced or mutated [#22180](https://github.com/scala/scala3/pull/22180)
+
+# Tooling
+
+- Connect the input to the compiler in `sbt` [#22336](https://github.com/scala/scala3/pull/22336)
+- Ensure to escape characters before constructing JSON profile trace [#21872](https://github.com/scala/scala3/pull/21872)
+- Fix: correctly print literal types in the refined printer [#22351](https://github.com/scala/scala3/pull/22351)
+
+## Transform
+
+- Attempt to beta reduce only if parameters and arguments have same shape [#21970](https://github.com/scala/scala3/pull/21970)
+- Fix enclosingClass from returning refinement classes [#21411](https://github.com/scala/scala3/pull/21411)
+- Fix #22226: Use `classOf[BoxedUnit]` for Unit array in `ArrayConstructors`. [#22238](https://github.com/scala/scala3/pull/22238)
+- Fix typo in `allTermArguments` [#21836](https://github.com/scala/scala3/pull/21836)
+
+## Typer
+
+- Fixes for isLegalPrefix change [#22241](https://github.com/scala/scala3/pull/22241)
+- Resolve name when named imp is behind wild imps [#21888](https://github.com/scala/scala3/pull/21888)
+- Do not crash when typing a closure with unknown type, since it can occur for erroneous input [#21178](https://github.com/scala/scala3/pull/21178)
+- Allow autotupling if fn's param is a type param [#21741](https://github.com/scala/scala3/pull/21741)
+- Fix ctx implicits under case unapplySeq [#21748](https://github.com/scala/scala3/pull/21748)
+- Avoid using ExplainingTypeComparer in regular code [#21583](https://github.com/scala/scala3/pull/21583)
+- Avoid erasure/preErasure issues around Any in transformIsInstanceOf [#21647](https://github.com/scala/scala3/pull/21647)
+- Remove tvars introduced while testing normalizedCompatible [#21466](https://github.com/scala/scala3/pull/21466)
+
+## Miscellaneous
+
+- Replace deprecated AnyRefMap [#22230](https://github.com/scala/scala3/pull/22230)
+
+# Contributors
+
+Thank you to all the contributors who made this release possible 🎉
+
+According to git shortlog -sn --no-merges 3.3.5..3.3.6-RC1 these are:
+
+```
+    63  Tomasz Godzik
+    30  Dale Wijnand
+    26  Wojciech Mazur
+    20  noti0na1
+    15  Hamza Remmal
+    15  Matt Bovel
+    10  Jan Chyb
+     9  Kacper Korban
+     6  Som Snytt
+     4  Sébastien Doeraene
+     3  HarrisL2
+     3  Jamie Thompson
+     3  Martin Odersky
+     3  Seth Tisue
+     3  kasiaMarek
+     2  Friendseeker
+     2  João Ferreira
+     2  Kenji Yoshida
+     2  Natsu Kagami
+     2  Pascal Weisenburger
+     2  dependabot[bot]
+     1  Adrien Piquerez
+     1  Alden Torres
+     1  Alexander
+     1  Georgi Krastev
+     1  Guillaume Martres
+     1  Jentsch
+     1  Lunfu Zhong
+     1  Mathias
+     1  Michał Pałka
+     1  Oleg Zenzin
+     1  Oliver Bračevac
+     1  friendseeker
+     1  philippus
+     1  tgodzik
+     1  xiaoshihou
+```

changelogs/3.3.6-RC2.md

@@ -0,0 +1,13 @@
+# Reverted changes
+
+- Do not lift annotation arguments [#22035](https://github.com/scala/scala3/pull/22035) and [#22046](https://github.com/scala/scala3/pull/22046)
+
+# Contributors
+
+Thank you to all theq contributors who made this release possible 🎉
+
+According to `git shortlog -sn --no-merges 3.3.6-RC1..3.3.6-RC2` these are:
+
+```
+     3  Tomasz Godzik
+```

changelogs/3.3.6-RC3.md

@@ -0,0 +1,16 @@
+# Backported fixes
+
+- classfile reader: handle JDK 9+ constant types in constant pool [#19533](https://github.com/scala/scala3/pull/19533)
+- Update asm to 9.8.0 [#23004](https://github.com/scala/scala3/pull/23004)
+
+# Contributors
+
+Thank you to all theq contributors who made this release possible 🎉
+
+According to `git shortlog -sn --no-merges 3.3.6-RC2..3.3.6-RC3` these are:
+
+```
+     2  Seth Tisue
+     1  Tomasz Godzik
+     1  philippus
+```