3.1.2

Forward compatibility improvements

• Enable generation of TASTy files readable for older compilers #14156

General improvements

• Add eval (-e) expression evaluation to command line #14263
• Format compiler crash stack traces #14269
• Improve typer traces #14270
• Add -Xmacro-settings option and API #14234
• Add reflect TypeRepr.substituteTypes #13166
• Expand compiletime.ops #13400
• Cache isSubspace for a 3000% speedup #13637
• lint trivially self-recursive extension methods #13709
• add printTypesAndErasure test main method to compare typer and erasure #13745
• Warning for infinite recursive lazy vals #13749
• Provide scala.home setting for scripts #13759
• Improve message when -Xmax-inlines limit reached #13783
• Add append operator to Tuple #13786
• Allow passing any JMH option to scala3-bench #13787
• Warn on lossy conversion of literals & constants #13792
• Consider minTargetVersion as always supported #13811
• Add -Xmacro-check for Block constructors #13824
• Navigate the AST within AnnotatedType and ImportType #13834
• Refine handling of CanThrow capabilities #13866
• Indicate name of classfile where leaky mapping of existential type happens #13879
• Refine treatment of TypeBounds in patterns #13881
• Impose implicit search limit #13886
• Better handling of multiple exceptions for saferExceptions #13914
• Complete when importing same symbol multiple times #13972
• Implement :settings in the REPL #13982
• Fixes and improvements to trace logging #13984
• Fail compilation of attempting a 0-arity product extraction #14029
• Traverse the types to find experimental references #14047
• Retain HasDefaultParams flag on export. #14051
• Also consider private symbols in implicit scope of type #14054
• Allow return in tailrec position #14067
• Make outer references Java-synthetic #14084
• Add Reflect TypeRepr.typeArgs #14088
• Reject empty target names #14090
• Use =>> instead of => for printing a LambdaTypeTree #14107
• REPL: Add compiler options to :reset #14139
• Add hint on -Xcheck-macro scope extrusion failure #14203
• Support quoted PolyFunction #14222
• Update wording of uninitialized value error to be grammatically correct #14292
• Rename -Yscala-release, -release and -Xtarget settings to make them more consistent #14606

Scaladoc

• Fix missing known subtypes #13794
• Markdown preprocessor #13140
• Add source position for errors from doc-root-content file #13908
• Fix double implicit modifier #13909
• Fix links to unexisting types sites #13917
• Add support for tables in wiki syntax #13933
• Improve features parity with old scaladoc/docs.scala-lang #13954
• Add missing styles to snippets that are not Scala #13959
• Fix filtering extensions. Better support for exports #14125

SemanticDB

• Add annotations #13818
• Support TypeApply Synthetic #13481

Bug fixes

• Fix #13855: Chaining Match Types fails at value level #14354
• Fix #12260: Add underscore to match type syntax #12261
• Fix #11861 - hash nested calls to inline definitions #12931
• Avoid shadowing of name 'name' #13442
• Fix #13633: Can't reduce match types inside a type alias #13635
• Fix erased context function types #13736
• Widen qualifier skolems #13748
• Change order of proxy evaluation when inlining #13755
• Fix init checker on secondary constructor parameter access #13776
• Add missing @experimental in Tuples #13778
• Fix improper usage of constrained breaking type inference #13779
• Fix error message when deriving an obstract type #13812
• Handles Nothing when synthesizing CanEqual #13828
• Fix #13026: No longer print VBAR and padding in the middle of the message #13829
• Solves dotc assertion error on (non-sensical?) parameter type. #13769 #13830
• Fix missing code-completion on standalone annotations #13831
• Fix comparing AnyVal | Null to Null and selecting in UnsafeNulls #13837
• Fix error summary printed twice #13843
• Detect opaque aliases in inline val types #13857
• Fix @experimental @main methods #13858
• Fix #13860: Ignore bridges when looking for a default getter's attached method. #13870
• Add missing position when expanding error #13872
• Try to instantiate type variables in tryInsertImplicitOnQualifier #13884
• Fix crasher for missing integer argument on command line #13894
• Fix messages leaking via suspended messages #13911
• Don't lift try-catch statements that are already in local functions #13944
• Initialize quote cache on tasty inspector run #13953
• Tighten product match logic in irrefutable check #13962
• Fix Mirror.Product for type lambdas #14003
• Sound type avoidance (hopefully!) #14026
• Fix REPL clashing with CWD artefacts #14021
• Don't retypecheck erroneous arguments when fixing function #14043
• Fix #13994: initialise inline ctx in lateEnter #14050
• Inline inlined private methods before checking accessibility #14049
• Handle hoisted super arguments correctly in elimByName #14057
• Check variance of RHS of opaque type #14058
• Don't insert INDENT/UNINDENT without anything in between #14066
• Don't generate illegal types when clarifying implicit errors #14068
• Allow import <ident> to show completions #14069
• Bypass eligible caches for impl...

3.1.2-RC3

Notable Changes

• Revert #14067: "Allow return in tailrec position" - the change was breaking tasty compatibility.

Contributors

For the record, according to git shortlog -sn --no-merges 3.1.2-RC2..3.1.2-RC3, contributors list looks like this:

  2  Paweł Marks

3.1.2-RC2

Notable Changes

• Set context when reporting summonInline errors #14405
• Fix #14541: Problem running @main methods with command line arguments #14543
• Check defined in src for cache in companion #14557
• Rename -Yscala-release, -release and -Xtarget settings to make them more consistent #14606

Contributors

Thank you to all the contributors who made this release possible 🎉

According to git shortlog -sn --no-merges 3.1.2-RC1..3.1.2-RC2 these are:

     1  Jamie Thompson
     1  Michał Pałka
     1  Nicolas Stucki
     1  Paweł Marks
     1  Som Snytt
     1  Andrzej Ressel

3.1.2-RC1

Forward compatibility improvements

• Enable generation of TASTy files readable for older compilers #14156

General improvements

• Add eval (-e) expression evaluation to command line #14263
• Format compiler crash stack traces #14269
• Improve typer traces #14270
• Add -Xmacro-settings option and API #14234
• Add reflect TypeRepr.substituteTypes #13166
• Expand compiletime.ops #13400
• Cache isSubspace for a 3000% speedup #13637
• lint trivially self-recursive extension methods #13709
• add printTypesAndErasure test main method to compare typer and erasure #13745
• Warning for infinite recursive lazy vals #13749
• Provide scala.home setting for scripts #13759
• Improve message when -Xmax-inlines limit reached #13783
• Add append operator to Tuple #13786
• Allow passing any JMH option to scala3-bench #13787
• Warn on lossy conversion of literals & constants #13792
• Consider minTargetVersion as always supported #13811
• Add -Xmacro-check for Block constructors #13824
• Navigate the AST within AnnotatedType and ImportType #13834
• Refine handling of CanThrow capabilities #13866
• Indicate name of classfile where leaky mapping of existential type happens #13879
• Refine treatment of TypeBounds in patterns #13881
• Impose implicit search limit #13886
• Better handling of multiple exceptions for saferExceptions #13914
• Complete when importing same symbol multiple times #13972
• Implement :settings in the REPL #13982
• Fixes and improvements to trace logging #13984
• Fail compilation of attempting a 0-arity product extraction #14029
• Traverse the types to find experimental references #14047
• Retain HasDefaultParams flag on export. #14051
• Also consider private symbols in implicit scope of type #14054
• Allow return in tailrec position #14067
• Make outer references Java-synthetic #14084
• Add Reflect TypeRepr.typeArgs #14088
• Reject empty target names #14090
• Use =>> instead of => for printing a LambdaTypeTree #14107
• REPL: Add compiler options to :reset #14139
• Add hint on -Xcheck-macro scope extrusion failure #14203
• Support quoted PolyFunction #14222
• Update wording of uninitialized value error to be grammatically correct #14292

Scaladoc

• Fix missing known subtypes #13794
• Markdown preprocessor #13140
• Add source position for errors from doc-root-content file #13908
• Fix double implicit modifier #13909
• Fix links to unexisting types sites #13917
• Add support for tables in wiki syntax #13933
• Improve features parity with old scaladoc/docs.scala-lang #13954
• Add missing styles to snippets that are not Scala #13959
• Fix filtering extensions. Better support for exports #14125

SemanticDB

• Add annotations #13818
• Support TypeApply Synthetic #13481

Bug fixes

• Fix #13855: Chaining Match Types fails at value level #14354
• Fix #12260: Add underscore to match type syntax #12261
• Fix #11861 - hash nested calls to inline definitions #12931
• Avoid shadowing of name 'name' #13442
• Fix #13633: Can't reduce match types inside a type alias #13635
• Fix erased context function types #13736
• Widen qualifier skolems #13748
• Change order of proxy evaluation when inlining #13755
• Fix init checker on secondary constructor parameter access #13776
• Add missing @experimental in Tuples #13778
• Fix improper usage of constrained breaking type inference #13779
• Fix error message when deriving an obstract type #13812
• Handles Nothing when synthesizing CanEqual #13828
• Fix #13026: No longer print VBAR and padding in the middle of the message #13829
• Solves dotc assertion error on (non-sensical?) parameter type. #13769 #13830
• Fix missing code-completion on standalone annotations #13831
• Fix comparing AnyVal | Null to Null and selecting in UnsafeNulls #13837
• Fix error summary printed twice #13843
• Detect opaque aliases in inline val types #13857
• Fix @experimental @main methods #13858
• Fix #13860: Ignore bridges when looking for a default getter's attached method. #13870
• Add missing position when expanding error #13872
• Try to instantiate type variables in tryInsertImplicitOnQualifier #13884
• Fix crasher for missing integer argument on command line #13894
• Fix messages leaking via suspended messages #13911
• Don't lift try-catch statements that are already in local functions #13944
• Initialize quote cache on tasty inspector run #13953
• Tighten product match logic in irrefutable check #13962
• Fix Mirror.Product for type lambdas #14003
• Sound type avoidance (hopefully!) #14026
• Fix REPL clashing with CWD artefacts #14021
• Don't retypecheck erroneous arguments when fixing function #14043
• Fix #13994: initialise inline ctx in lateEnter #14050
• Inline inlined private methods before checking accessibility #14049
• Handle hoisted super arguments correctly in elimByName #14057
• Check variance of RHS of opaque type #14058
• Don't insert INDENT/UNINDENT without anything in between #14066
• Don't generate illegal types when clarifying implicit errors #14068
• Allow import <ident> to show completions #14069
• Bypass eligible caches for implicit search under GADT constraints #14072
• Fix passing jvm options [#14073](https://github.com/lamp...

3.1.1

Improvements

• Remove differences in diagnostic printing in the REPL #13266
• Make trace typed, to avoid needless casting #13464
• Change TastyFormat for REFINEDtype to conform to existing .tasty files #13507
• Emit deferred reachability warnings & fix boxing/unboxing adapting #13485
• Include scope completions for synthic select tree #13515
• Setup snippet compiler for scala.quoted and fix snippets #13521
• Scaladoc: UI/UX Changes #13566
• Make members of the empty package invisible from inside other packages #13593
• Prioritize ambiguous errors in extension method search #13588
• Better nested lists rendering in scaladoc #13643
• Clarify implicit scope of opaque type aliases #13666
• Allow using clauses to introduce Scala-2 conversions #13662
• Remove plugin related settings from common scala settings #13711
• Remove RenameLifted phase #13717
• Move part of settings to CommonScalaSettings #13712
• Add init and last methods to NonEmptyTuple #13735
• Allow dual Scala 2/3 macros in non-experimental scopes #13795
• Refine check for caching companion in sum mirror #14035

Bug fixes

• Do not bind inline parameters when lifting args #13429
• Fix #13440: Avoid capturing var in message closure #13441
• Scaladoc: Fix printing refined self-types in snippet-compiler #13436
• Set correct source for generated TypeTrees #13465
• Fix reachability of non-reducing match type children #13251
• Use correct context when creating inline trace #13492
• Fix #13497: Exception occurred while typechecking summon in nested flatMap #13499
• Unwiden scrutinee types, fixing match analysis #13409
• Don't count constructors in allMembers #13505
• Fix crash on uninstantiated field access #13517
• Fix #13320: add .type to modules in messages #13374
• Fix #13518: Scala.js: fix primitive + string when the string is a TermRef. #13537
• Fix running repl #13535
• Fix specifity comparison for extensions in polymorphic givens #13509
• Capture missing class when loading methods #13525
• Fix snippets in scala.compiletime and fix snippet compiler reporting line numbers in specific cases #13528
• Fix Java generic signatures for aliases #13574
• Fix suggested stub implementation code #13529
• Remove anomalies and gaps in handling annotations #13348
• Do not remove accessors to early #13484
• Fix #10349: Match type on Map crashes the compiler #13581
• Fix wrong external mappings in Build.scala #13582
• Add type modes to DottyTypeStealer #13576
• Fix #12962: Fail verifyScalacArgs if dist/target/pack/bin/scalac not found #13029
• Fix #13455: Also consider sealed classes closed sums #13483
• Fix #13197: Deskolemize lifted named arguments #13590
• Fix missing SymbolOccurrence for aliased symbol #13609
• Fix #13487: Unification check in deriving is incorrect #13489
• Fix #13552: Insert compiler libraries head of user-specified classpath #13562
• repl: Handle user-defined res definitions #13600
• Fix #13491: 3.0.2 typing incompatible with 3.0.1 #13585
• Ignore StaleSymbol exceptions when testing whether dependencies should be ignored #13594
• ExtractDependencies: more robust cycle check #13583
• Check that right hand sides of implicit defs don't loop (directly) #13589
• Fix #13495: Break completion cycles #13596
• Fix #10886: Show full evaluation of match types in interactive #13597
• Fix #13469: Type Function Alias behaves differently from the inlined version of the type alias #13598
• Fix variable handling in super calls #13639
• Avoid crash in parser when tree has no position #13640
• Fix #12944: Match type failure to reduce with separate compilation #13636
• Fix 13618: Undo windows wildcard classpath globbing #13619
• Don't reduce inline matches, when a guard cannot be checked at compile time #13601
• Eliminate newNakedSymbol methods #13641
• Fix #13418: support AppliedType in outerTestNeeded #13420
• Fix erasure of curried polymorphic function types #13664
• Fix # 13670: Relax requirements for recognizing valid scala hashbang lines #13671
• Make distinctRefs in ImportSuggestions use constant stackspace #13667
• Remember compared polytypes #13663
• Fix ordering propagation during parameter unification in constraint solver #13031
• Don't lose paramSyms when unpickling from Scala 2 #13665
• Skipping inlined tree reduction of type member selection #13578
• Fix #12656 by setting the proper reporter for inlined methods #13543
• Inliner: don't confuse method parameters and nested lambda parameters #13658
• Strip Nulls from Java members when unsafeNulls is enabled #13337
• Handle inline super prefix bindings #13649
• Fix parents of tuple classes #13659
• Fix broken lookups #13697
• Fix overriding in explicit nulls #13647
• Normalize prototype before decomposing as a function #13651
• Do not perform completion on higher kinded trees #13700
• Fix encoding of setters on anonymous classes with structural types #13707
• Scaladoc: Fix bugs found while setting up cats #13705
• Search for type tests when matching abstract applied type #13453
• Avoid cycle with top-level export and trait #13719
• Handle Java varargs T... where T is a class parameter #13718
• Fix top level index #13710
• Set the correct owner when quote making inlinable #13547
• Fix error message when "import given" is missing #13731
• Can mark var implementation as override #13744
• under -source:future, don't warn on infix usage of Scala 2 defined methods with default arguments #13714
• Add missing position to closure tree #13733
• Collective extensions is sensitive to EOF #13432
• Fix init soundness #13472
• Fix F-Bounded types signatures [#13753](ht...

3.1.1-RC2

Notable Changes

• Allow dual Scala 2/3 macros in non-experimental scopes #13795
• Refine check for caching companion in sum mirror #14035
• Scaladoc: generate valid api doc if class name contains / or \ #13827

Contributors

Thank you to all the contributors who made this release possible 🎉

According to git shortlog -sn --no-merges 3.1.1-RC1..3.1.1-RC2 these are:

     3  Filip Zybała
     2  Nicolas Stucki
     1  Dale Wijnand
     1  Jamie Thompson
     1  Paweł Marks

Reporting Bugs

If you encounter a bug, please open an issue! 🙏

3.1.1-RC1

Improvements

• Remove differences in diagnostic printing in the REPL #13266
• Make trace typed, to avoid needless casting #13464
• Change TastyFormat for REFINEDtype to conform to existing .tasty files #13507
• Emit deferred reachability warnings & fix boxing/unboxing adapting #13485
• Include scope completions for synthic select tree #13515
• Setup snippet compiler for scala.quoted and fix snippets #13521
• Scaladoc: UI/UX Changes #13566
• Make members of the empty package invisible from inside other packages #13593
• Prioritize ambiguous errors in extension method search #13588
• Better nested lists rendering in scaladoc #13643
• Clarify implicit scope of opaque type aliases #13666
• Allow using clauses to introduce Scala-2 conversions #13662
• Remove plugin related settings from common scala settings #13711
• Remove RenameLifted phase #13717
• Move part of settings to CommonScalaSettings #13712
• Add init and last methods to NonEmptyTuple #13735

Bug fixes

• Do not bind inline parameters when lifting args #13429
• Fix #13440: Avoid capturing var in message closure #13441
• Scaladoc: Fix printing refined self-types in snippet-compiler #13436
• Set correct source for generated TypeTrees #13465
• Fix reachability of non-reducing match type children #13251
• Use correct context when creating inline trace #13492
• Fix #13497: Exception occurred while typechecking summon in nested flatMap #13499
• Unwiden scrutinee types, fixing match analysis #13409
• Don't count constructors in allMembers #13505
• Fix crash on uninstantiated field access #13517
• Fix #13320: add .type to modules in messages #13374
• Fix #13518: Scala.js: fix primitive + string when the string is a TermRef. #13537
• Fix running repl #13535
• Fix specifity comparison for extensions in polymorphic givens #13509
• Capture missing class when loading methods #13525
• Fix snippets in scala.compiletime and fix snippet compiler reporting line numbers in specific cases #13528
• Fix Java generic signatures for aliases #13574
• Fix suggested stub implementation code #13529
• Remove anomalies and gaps in handling annotations #13348
• Do not remove accessors to early #13484
• Fix #10349: Match type on Map crashes the compiler #13581
• Fix wrong external mappings in Build.scala #13582
• Add type modes to DottyTypeStealer #13576
• Fix #12962: Fail verifyScalacArgs if dist/target/pack/bin/scalac not found #13029
• Fix #13455: Also consider sealed classes closed sums #13483
• Fix #13197: Deskolemize lifted named arguments #13590
• Fix missing SymbolOccurrence for aliased symbol #13609
• Fix #13487: Unification check in deriving is incorrect #13489
• Fix #13552: Insert compiler libraries head of user-specified classpath #13562
• repl: Handle user-defined res definitions #13600
• Fix #13491: 3.0.2 typing incompatible with 3.0.1 #13585
• Ignore StaleSymbol exceptions when testing whether dependencies should be ignored #13594
• ExtractDependencies: more robust cycle check #13583
• Check that right hand sides of implicit defs don't loop (directly) #13589
• Fix #13495: Break completion cycles #13596
• Fix #10886: Show full evaluation of match types in interactive #13597
• Fix #13469: Type Function Alias behaves differently from the inlined version of the type alias #13598
• Fix variable handling in super calls #13639
• Avoid crash in parser when tree has no position #13640
• Fix #12944: Match type failure to reduce with separate compilation #13636
• Fix 13618: Undo windows wildcard classpath globbing #13619
• Don't reduce inline matches, when a guard cannot be checked at compile time #13601
• Eliminate newNakedSymbol methods #13641
• Fix #13418: support AppliedType in outerTestNeeded #13420
• Fix erasure of curried polymorphic function types #13664
• Fix # 13670: Relax requirements for recognizing valid scala hashbang lines #13671
• Make distinctRefs in ImportSuggestions use constant stackspace #13667
• Remember compared polytypes #13663
• Fix ordering propagation during parameter unification in constraint solver #13031
• Don't lose paramSyms when unpickling from Scala 2 #13665
• Skipping inlined tree reduction of type member selection #13578
• Fix #12656 by setting the proper reporter for inlined methods #13543
• Inliner: don't confuse method parameters and nested lambda parameters #13658
• Strip Nulls from Java members when unsafeNulls is enabled #13337
• Handle inline super prefix bindings #13649
• Fix parents of tuple classes #13659
• Fix broken lookups #13697
• Fix overriding in explicit nulls #13647
• Normalize prototype before decomposing as a function #13651
• Do not perform completion on higher kinded trees #13700
• Fix encoding of setters on anonymous classes with structural types #13707
• Scaladoc: Fix bugs found while setting up cats #13705
• Search for type tests when matching abstract applied type #13453
• Avoid cycle with top-level export and trait #13719
• Handle Java varargs T... where T is a class parameter #13718
• Fix top level index #13710
• Set the correct owner when quote making inlinable #13547
• Fix error message when "import given" is missing #13731
• Can mark var implementation as override #13744
• under -source:future, don't warn on infix usage of Scala 2 defined methods with default arguments #13714
• Add missing position to closure tree #13733
• Collective extensions is sensitive to EOF #13432
• Fix init soundness #13472
• Fix F-Bounded types signatures #13753
• Fix #13758: Provide scala.home setting for scripts [#13759](https://github.c...

3.1.0

Scala 3.1 is backwards binary-compatible with Scala 3.0: libraries compiled with 3.0.x can be used from 3.1 without change.

Notable changes

• New experimental feature: safer exceptions #11721
• Emit efficient code for switch over strings #11937
• Add reflect SourceFile.{getJPath,name,path} #13177
• Support -Wconf and @nowarn #12857
• Fix #9482: simplified Manifest synthesis #13142
• Scaladoc: Integrate Scastie into Scaladoc #13258
• Add reflect Unapply.apply #13298
• Change @experimental spec #13305
• Update the tasty inspector returned value #13316
• Add Wildcard in reflection #13363
• Add TypedOrTest as super type of Typed in reflection #13362

Stabilized API

• scala.Selectable.WithoutPreciseParameterTypes #13315
• Symbol member methods in reflection API #13314
• scala.quoted.Type.valueOfTuple #13313
• Quotes abort API #13312
• Quotes.reflect.TermParamClause.isErased #13311

Other improvements

Language and compiler

• Add CanEqual typeclass instances of Option, Either and Tuple for strictEquality #12419
• Synthesise Mirror.Sum for nested hierarchies #11686
• Added better explanation for tree, that cannot be typed #12717
• Allowing local variables to be initialized with non-hot values in initialization checker #12867
• Use StringConcatFactory for string concatenation on JDK 9+ #12929
• Add explanation to "already defined" message #13090
• Do not require @experimental on anonymous classes #13155
• Make body of quotes inlinable #13188
• REPL: display the compiler + Java version on startup #13193
• Teach backend to emit iinc instructions #13214
• Allow IntSetting's to be set with a colon #13267
• Add CanEqual typeclass instance for Seq to match Nil case#13265
• Simplify & clarify TASTy isVersionCompatible #13280
• Allow semicolon between type match cases #13338
• Allow experimental erased in experimental scopes #13394
• Add TypeRepr.isTupleN to reflection API #13384
• Allow experimental language imports in experimental scopes #13417
• Allow -source 3.1 as a version #13617

Documentation

• Update the docs, change sidebar url property to page/index #13004
• Inkuire search engine UI improvements #13052
• Generate flat documentation structure for API rather than putting everything in api directory #13130
• Add heuristic to support Context Bounds #13172
• Add snippet includes feature. Introduce new snippet UX/UI. #13217
• Add version browsing for nightlies #13244
• Fetch Inkuire at scaladoc build instead of documentation generation #13287

SemanticDB

• Signature information #12885
• Support new Scala3 modifiers #13239
• Support synthetics: implicit params, context params, and implicit conversions #13288
• Support overridden_symbols#13295

Other bug fixes

• Fix parsing Java annotation values #11809
• Fix #11318: Assertion failed when not adding prefix to extension method in method body #11882
• Fix #10900: Avoid loop for F-bounds in checkCanEqual #12747
• Fix regression in provablyDisjoint #12786
• Do no widen constant type on selector type in inline matches #12902
• Make def generated from givens not synthetic #12979
• Fix non-determinism in -Ysafe-init external method trace: #12989
• Exhaustivity warnings on nested case classes #13030
• Fix constructors Java generic signatures #13047
• Set TimeZone for version number #13051
• Avoid auto-tupling in unapply unless a tuple is expected #13063
• Handle overloaded members when generating Java varargs bridges #13066
• Fix definition of enclosingExtensionMethod #13078
• Fix syntax of extension methods #13079
• Refine "can be handled by parent" condition when generting bridges #13092
• Suppress "no outer defs" check for Java sources #13108
• Fix MatchError in Scaladoc Scalajs script #13115
• Escape illegal characters in scaladoc code blocks #13118
• Run PatternMatcher earlier, in the group before ExplicitOuter #13124
• Deskolemise patterns to suppress exhaustivity warnings #13137
• Analyze end markers when looking ahead #13139
• Fix #13131: escape java array in ClassTag #13156
• Handle isDefinedInCurrentRun on no symbol #13157
• call deleteOnExit() after creating temporary scripting compile directory #13171
• Detect cyclic dependencies when loading modules #13178
• Fix #12800: Clarify match type reduction error on empty scrutinee #13184
• Fix intrinsic types documentation when there is no scala package on files to document path #13185
• Remove color from scala.compiletime.codeOf #13186
• Scaladoc fix 12813: type parameter in extension method is wrong #13191
• Scaladoc fix #13148: Empty argument list is not shown in scaladoc in some cases #13192
• Fix inherit doc warnings #13199
• Fix bugs in RemoteLinksTests #13200
• Scaladoc fix [#13194]: Ill formated codeblock #13202
• Fix self types appearing as inherited in docs and docs leaking self type methods #13207
• Fix #12178: cannot resolve ValueOf for type literal argument of opaque types #13210
• Make Hole a proper Tree in Trees #13213
• Weaken assertion for duplicate attachments #13224
• Employ frozen_<:< instead of <:< within EtaExpansion extractor logic #13229
• Fix docs of Reflect.Symbol.children #13232- Fix #13141 remove spurious coercion of * to a type identifier (was already a valid identifier) #13237
• Don't export members that will be synthesized in case classes #13234
• Fix a bug causi...

3.1.0-RC3

Notable Changes

• Make batch files support installation path containing spaces #13577
• Fix #13626: Wrong position of quote content #13627
• Fix #10867: Normalize after applyIfParameterized in superType #13253
• Generate static forwarders for object members in companion interface #13573
• Allow -source 3.1 as a version #13617

Contributors

Thank you to all the contributors who made this release possible 🎉

According to git shortlog -sn --no-merges 3.1.0-RC2..3.1.0-RC3 these are:

     4  Olivier Blanvillain
     2  Stéphane Micheloud
     1  Guillaume Martres
     1  Martin Odersky
     1  Matthieu Bovel
     1  Paweł Marks

Reporting Bugs

If you encounter a bug, please open an issue! 🙏

3.1.0-RC2

Notable Changes

• Fix #10747: Raise type error on unreducible match type #12768
• Set typer phase after InteractiveDriver.run #13530
• 3.1.0 line is no longer bootstrapped by the nightly build of the compiler

Contributors

Thank you to all the contributors who made this release possible 🎉

According to git shortlog -sn --no-merges 3.1.0-RC1..3.1.0-RC2 these are:

     9 Olivier Blanvillain
     3 Jamie Thompson
     1 Andrzej Ratajczak
     1 Nicolas Stucki
     1 Tomasz Godzik

Reporting Bugs

If you encounter a bug, please open an issue! 🙏