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| # Highlights of the release | ||
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| - Bundle scala-cli in scala command (For RC1 requires JVM 17, further RCs will use native launchers) | ||
| - Introduce Best Effort compilation options [#17582](https://github.com/lampepfl/dotty/pull/17582) | ||
| - Add support for Pipelined builds [#18880](https://github.com/lampepfl/dotty/pull/18880) | ||
| - Add support for `var` in refinements [#19982](https://github.com/lampepfl/dotty/pull/19982) | ||
| - Implement SIP-42 - Support for binary integer literals [#19405](https://github.com/lampepfl/dotty/pull/19405) | ||
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| # Other changes and fixes | ||
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| ## Backend | ||
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| - Fix Closure span assignment in makeClosure [#15841](https://github.com/lampepfl/dotty/pull/15841) | ||
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| ## Default parameters | ||
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| - Fix default args lookup for given classes [#20256](https://github.com/lampepfl/dotty/pull/20256) | ||
| - Fix implicit search failure reporting [#20261](https://github.com/lampepfl/dotty/pull/20261) | ||
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| ## Derivation | ||
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| - Fix infinite loop in Mirror synthesis of unreducible match type [#20133](https://github.com/lampepfl/dotty/pull/20133) | ||
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| ## Desugaring | ||
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| - Add explanation to checkCaseClassInheritanceInvariant error msg [#20141](https://github.com/lampepfl/dotty/pull/20141) | ||
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| ## Exports | ||
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| - Add annotations in parameters for exports [#20140](https://github.com/lampepfl/dotty/pull/20140) | ||
| - Fix isAliasType [#20195](https://github.com/lampepfl/dotty/pull/20195) | ||
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| ## Implicits | ||
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| - Fix implicitNotFound message for type aliases [#19343](https://github.com/lampepfl/dotty/pull/19343) | ||
| - Normalize types before collecting parts determining implicit scope [#20077](https://github.com/lampepfl/dotty/pull/20077) | ||
| - Better error diagnostics under -explain-cyclic [#20251](https://github.com/lampepfl/dotty/pull/20251) | ||
| - Update unreducible match types error reporting [#19954](https://github.com/lampepfl/dotty/pull/19954) | ||
| - Improve ConstraintHandling of SkolemTypes [#20175](https://github.com/lampepfl/dotty/pull/20175) | ||
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| ## Incremental Compilation | ||
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| - Retain default parameters with `export` [#20167](https://github.com/lampepfl/dotty/pull/20167) | ||
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| ## Inline | ||
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| - Fix by-name parameter in beta-reduction [#20096](https://github.com/lampepfl/dotty/pull/20096) | ||
| - Add warning for anonymous inline classes (#16723) [#20291](https://github.com/lampepfl/dotty/pull/20291) | ||
| - Avoid conversion of `Unit` type into `()` term [#20295](https://github.com/lampepfl/dotty/pull/20295) | ||
| - Type desugared `transparent inline def unapply` call in the correct mode [#20108](https://github.com/lampepfl/dotty/pull/20108) | ||
| - Regression: fix compilation performance on Windows [#20193](https://github.com/lampepfl/dotty/pull/20193) | ||
| - Fix inline match on blocks with multiple statements [#20125](https://github.com/lampepfl/dotty/pull/20125) | ||
| - Inline `unapply`s in the inlining phase [#19382](https://github.com/lampepfl/dotty/pull/19382) | ||
| - Fix outerSelect in Inliner [#20313](https://github.com/lampepfl/dotty/pull/20313) | ||
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| ## Linting | ||
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| - Fix #20146: attach the original name if there is an import selection for an indent [#20163](https://github.com/lampepfl/dotty/pull/20163) | ||
| - Add regression test for issue 18632 [#20308](https://github.com/lampepfl/dotty/pull/20308) | ||
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| ## Match Types | ||
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| - Make aliases of `MatchAlias`es normal `TypeAlias`es [#19871](https://github.com/lampepfl/dotty/pull/19871) | ||
| - Fix #19746: Do not follow param term refs in `isConcrete`. [#20015](https://github.com/lampepfl/dotty/pull/20015) | ||
| - Do match type reduction atPhaseNoLater than ElimOpaque [#20017](https://github.com/lampepfl/dotty/pull/20017) | ||
| - Do not flag match types as `Deferred` and amend #20077 [#20147](https://github.com/lampepfl/dotty/pull/20147) | ||
| - Always use baseType when constraining patternTp with scrutineeTp [#20032](https://github.com/lampepfl/dotty/pull/20032) | ||
| - Use `MirrorSource.reduce` result for `companionPath` [#20207](https://github.com/lampepfl/dotty/pull/20207) | ||
| - Regression: Fix match type extraction of a MatchAlias [#20111](https://github.com/lampepfl/dotty/pull/20111) | ||
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| ## Polyfunctions | ||
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| - Discard poly-functions when trying to resolve overloading [#20181](https://github.com/lampepfl/dotty/pull/20181) | ||
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| ## Presentation Compiler | ||
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| - Stabilise returned completions by improving deduplication + extra completions for constructors [#19976](https://github.com/lampepfl/dotty/pull/19976) | ||
| - Fix active param index for empty param lists [#20142](https://github.com/lampepfl/dotty/pull/20142) | ||
| - Delias type members in hover [#20173](https://github.com/lampepfl/dotty/pull/20173) | ||
| - Interactive: handle context bounds in extension construct workaround [#20201](https://github.com/lampepfl/dotty/pull/20201) | ||
| - Fix: prefer non-export definition locations [#20252](https://github.com/lampepfl/dotty/pull/20252) | ||
| - Don't show enum completions in new keyword context [#20304](https://github.com/lampepfl/dotty/pull/20304) | ||
| - Chore: Backport changes for presentation compiler [#20345](https://github.com/lampepfl/dotty/pull/20345) | ||
| - Add custom matchers for completions (fuzzy search for presentation compiler) [#19850](https://github.com/lampepfl/dotty/pull/19850) | ||
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| ## Quotes | ||
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| - Fix TermRef prefixes not having their type healed [#20102](https://github.com/lampepfl/dotty/pull/20102) | ||
| - Improve reporting in staging about the possible use of an incorrect class loader [#20137](https://github.com/lampepfl/dotty/pull/20137) | ||
| - Introduce MethodTypeKind to quotes reflection API [#20249](https://github.com/lampepfl/dotty/pull/20249) | ||
| - Add quote ASTs to TASTy [#20165](https://github.com/lampepfl/dotty/pull/20165) | ||
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| ## Reflection | ||
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| - Allow to beta reduce curried function applications in quotes reflect [#18121](https://github.com/lampepfl/dotty/pull/18121) | ||
| - Set the inlining phase in the Context used for checking macro trees [#20087](https://github.com/lampepfl/dotty/pull/20087) | ||
| - Add Symbol.isSuperAccessor to reflection API [#13388](https://github.com/lampepfl/dotty/pull/13388) | ||
| - Stabilize reflect `SymbolMethods.isSuperAccessor` [#20198](https://github.com/lampepfl/dotty/pull/20198) | ||
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| ## Repl | ||
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| - Fix validity period of derived SingleDenotations [#19983](https://github.com/lampepfl/dotty/pull/19983) | ||
| - Fix #18383: Never consider top-level `import`s as unused in the repl. [#20310](https://github.com/lampepfl/dotty/pull/20310) | ||
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| ## Reporting | ||
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| - Warn if extension receiver already has member [#17543](https://github.com/lampepfl/dotty/pull/17543) | ||
| - Deprecation of case class elements [#17911](https://github.com/lampepfl/dotty/pull/17911) | ||
| - Support src filter in -WConf (Closes #17635) [#18783](https://github.com/lampepfl/dotty/pull/18783) | ||
| - Add note about type mismatch in automatically inserted apply argument [#20023](https://github.com/lampepfl/dotty/pull/20023) | ||
| - Make error reporting resilient to exception thrown while reporting [#20158](https://github.com/lampepfl/dotty/pull/20158) | ||
| - Remove duplicate comma from Matchable selector warning [#20159](https://github.com/lampepfl/dotty/pull/20159) | ||
| - Generalize warnings for top-level calls to Any or AnyRef methods [#20312](https://github.com/lampepfl/dotty/pull/20312) | ||
| - Make CheckUnused not slow. [#20321](https://github.com/lampepfl/dotty/pull/20321) | ||
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| ## Rewrites | ||
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| - Patch indentation when removing braces (and other bug fixes in `-indent -rewrite`) [#17522](https://github.com/lampepfl/dotty/pull/17522) | ||
| - Extra check to avoid converting block expressions on the rhs of an in… [#20043](https://github.com/lampepfl/dotty/pull/20043) | ||
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| ## Scaladoc | ||
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| - Fix scaladoc crash on Windows - illegal path character [#20311](https://github.com/lampepfl/dotty/pull/20311) | ||
| - Scaladoc: improve refined function types rendering [#20333](https://github.com/lampepfl/dotty/pull/20333) | ||
| - Relax font-weight reset [#20348](https://github.com/lampepfl/dotty/pull/20348) | ||
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| ## Scala JS | ||
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| - Optimize main.js [#20093](https://github.com/lampepfl/dotty/pull/20093) | ||
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| ## Settings | ||
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| - Lift Scala Settings from experimental to stabilized [#20199](https://github.com/lampepfl/dotty/pull/20199) | ||
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| ## Tooling | ||
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| - Detect macro dependencies that are missing from the classloader [#20139](https://github.com/lampepfl/dotty/pull/20139) | ||
| - Write pipelined tasty in parallel. [#20153](https://github.com/lampepfl/dotty/pull/20153) | ||
| - ConsoleReporter sends INFO to stdout [#20328](https://github.com/lampepfl/dotty/pull/20328) | ||
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| ## Transform | ||
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| - Fix overloaded default methods test in RefChecks [#20218](https://github.com/lampepfl/dotty/pull/20218) | ||
| - Fix handling of AppliedType aliases in outerPrefix [#20190](https://github.com/lampepfl/dotty/pull/20190) | ||
| - Elide unit binding when beta-reducing [#20085](https://github.com/lampepfl/dotty/pull/20085) | ||
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| ## Typer | ||
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| - Reduce projections of type aliases with class type prefixes [#19931](https://github.com/lampepfl/dotty/pull/19931) | ||
| - Re-lub also hard union types in simplify [#20027](https://github.com/lampepfl/dotty/pull/20027) | ||
| - Fix #19789: Merge same TypeParamRef in orDominator [#20090](https://github.com/lampepfl/dotty/pull/20090) | ||
| - Allow SAM types to contain match alias refinements [#20092](https://github.com/lampepfl/dotty/pull/20092) | ||
| - Don't dealias when deciding which arguments to defer [#20116](https://github.com/lampepfl/dotty/pull/20116) | ||
| - Avoid the TypeVar.inst trap [#20160](https://github.com/lampepfl/dotty/pull/20160) | ||
| - Avoid crash when superType does not exist after erasure [#20188](https://github.com/lampepfl/dotty/pull/20188) | ||
| - Refine overloading and implicit disambiguation [#20084](https://github.com/lampepfl/dotty/pull/20084) | ||
| - Refactor constant folding of applications [#20099](https://github.com/lampepfl/dotty/pull/20099) | ||
| - Rollback constraints if `isSameType` failed second direction [#20109](https://github.com/lampepfl/dotty/pull/20109) | ||
| - Suppress "extension method will never be selected" for overrides [#20164](https://github.com/lampepfl/dotty/pull/20164) | ||
| - Allow SAM types to contain multiple refinements [#20172](https://github.com/lampepfl/dotty/pull/20172) | ||
| - Normalize when verifying if TypeTestCasts are unchecked [#20258](https://github.com/lampepfl/dotty/pull/20258) | ||
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| # Experimental Changes | ||
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| - Named tuples second implementation [#19174](https://github.com/lampepfl/dotty/pull/19174) | ||
| - Change rules for given prioritization [#19300](https://github.com/lampepfl/dotty/pull/19300) | ||
| - Enable experimental mode when experimental feature is imported [#19807](https://github.com/lampepfl/dotty/pull/19807) | ||
| - Add message parameter to `@experimental` annotation [#19935](https://github.com/lampepfl/dotty/pull/19935) | ||
| - Implement match type amendment: extractors follow aliases and singletons [#20161](https://github.com/lampepfl/dotty/pull/20161) | ||
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| ## Capture Checking | ||
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| - Carry and check universal capability from parents correctly [#20004](https://github.com/lampepfl/dotty/pull/20004) | ||
| - Make parameter types of context functions inferred type trees [#20155](https://github.com/lampepfl/dotty/pull/20155) | ||
| - Handle reach capabilities correctly in depedent functions [#20203](https://github.com/lampepfl/dotty/pull/20203) | ||
| - Fix the visibility check in `markFree` [#20221](https://github.com/lampepfl/dotty/pull/20221) | ||
| - Make inline proxy vals have inferred types [#20241](https://github.com/lampepfl/dotty/pull/20241) | ||
| - CC: Give more info when context function parameters leak [#20244](https://github.com/lampepfl/dotty/pull/20244) | ||
| - Plug soundness hole for reach capabilities [#20051](https://github.com/lampepfl/dotty/pull/20051) | ||
| - Tighten the screws a bit more to seal the soundness hole for reach capabilities [#20056](https://github.com/lampepfl/dotty/pull/20056) | ||
| - Drop retains annotations in inferred type trees [#20057](https://github.com/lampepfl/dotty/pull/20057) | ||
| - Allow @retains arguments to be context functions [#20232](https://github.com/lampepfl/dotty/pull/20232) | ||
| - Fix conversion of this.fld capture refs under separate compilation [#20238](https://github.com/lampepfl/dotty/pull/20238) | ||
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| ## Erased definitions | ||
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| - Fix "Compiler crash when using CanThrow" [#20210](https://github.com/lampepfl/dotty/pull/20210) | ||
| - Only allow erased parameters in erased definitions [#19686](https://github.com/lampepfl/dotty/pull/19686) | ||
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| ## Initialization | ||
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| - Deprecate `StandardPlugin.init` in favor of `initialize` method taking implicit Context [#20330](https://github.com/lampepfl/dotty/pull/20330) | ||
| - Fix missing changesParents in PostTyper [#20062](https://github.com/lampepfl/dotty/pull/20062) | ||
| - Special case for next field of colon colon in global init checker [#20281](https://github.com/lampepfl/dotty/pull/20281) | ||
| - Extend whitelist in global initialization checker [#20290](https://github.com/lampepfl/dotty/pull/20290) | ||
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| ## Macro Annotations | ||
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| - Allow macro annotation to transform companion [#19677](https://github.com/lampepfl/dotty/pull/19677) | ||
| - Remove experimental `MainAnnotation`/`newMain` (replaced with `MacroAnnotation`) [#19937](https://github.com/lampepfl/dotty/pull/19937) | ||
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| ## Nullability | ||
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| - Add flexible types to deal with Java-defined signatures under -Yexplicit-nulls [#18112](https://github.com/lampepfl/dotty/pull/18112) | ||
| - Fix #20287: Add flexible types to Quotes library [#20293](https://github.com/lampepfl/dotty/pull/20293) | ||
| - Add fromNullable to Predef for explicit nulls [#20222](https://github.com/lampepfl/dotty/pull/20222) | ||
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| # Contributors | ||
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| Thank you to all the contributors who made this release possible 🎉 | ||
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| According to `git shortlog -sn --no-merges 3.4.2..3.5.0-RC1` these are: | ||
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| ``` | ||
| 137 Martin Odersky | ||
| 51 Eugene Flesselle | ||
| 32 Jamie Thompson | ||
| 25 Nicolas Stucki | ||
| 22 Sébastien Doeraene | ||
| 18 noti0na1 | ||
| 16 Matt Bovel | ||
| 12 Guillaume Martres | ||
| 9 Paweł Marks | ||
| 9 Yichen Xu | ||
| 8 Jan Chyb | ||
| 7 Hamza REMMAL | ||
| 6 Jędrzej Rochala | ||
| 6 Som Snytt | ||
| 5 Fengyun Liu | ||
| 5 dependabot[bot] | ||
| 3 Mikołaj Fornal | ||
| 2 Aviv Keller | ||
| 2 EnzeXing | ||
| 2 Wojciech Mazur | ||
| 1 Chris Pado | ||
| 1 Filip Zybała | ||
| 1 Georgi Krastev | ||
| 1 Hamza Remmal | ||
| 1 Jisoo Park | ||
| 1 Katarzyna Marek | ||
| 1 Lucas Nouguier | ||
| 1 Lucy Martin | ||
| 1 Ola Flisbäck | ||
| 1 Pascal Weisenburger | ||
| 1 Quentin Bernet | ||
| 1 Raphael Jolly | ||
| 1 Stephane Bersier | ||
| 1 Tomasz Godzik | ||
| 1 Yoonjae Jeon | ||
| 1 aherlihy | ||
| 1 rochala | ||
| 1 willerf | ||
| ``` |