0.16.0-RC3

Notable Changes

Language & Syntax

• Use =>> for type lambdas #6558
• Use ? for wildcards #6610
• Rename implied to delegate #6649

Type System Improvements

• Intersection based gadts #6398
• Improve opaque types (simpler implementation strategy, disallowing opaque as a local modifier and more) #6567

Compiler Development

• Implement Tuple operation directly in the compiler #6539
• Add mini-phase to fix constructors for enums extending java.lang.Enum #6602
• Remove dependency on scala-xml #5597
• New typeclass derivation scheme #6531

Contributors

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

According to git shortlog -sn --no-merges 0.15.0-RC1..0.16.0-RC3 these are:

    88  Martin Odersky
    51  Anatolii
    48  Nicolas Stucki
    26  Guillaume Martres
    21  Miles Sabin
    19  Liu Fengyun
    12  Aleksander Boruch-Gruszecki
    11  Sébastien Doeraene
     8  Aggelos Biboudis
     4  Olivier Blanvillain
     3  Eugene Yokota
     1  Dale Wijnand
     1  Allan Renucci
     1  Olivier ROLAND

Reporting Bugs

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

0.16.0-RC2

Release Dotty 0.16.0-RC2

0.16.0-RC1

Release Dotty 0.16.0-RC1

0.15.0

Revert to original version of scalatest and disable timeouting test

0.15.0-RC1

Notable Changes

Language & Syntax

• Type-Safe Pattern Matching (doc)
  • Fix #2578 Part 1: Tighten type checking of pattern bindings #6389
  • Fix #2578: (part 2) Make for-generators filter only if prefixed with case #6448
• Make given clauses come last #6513
• Add @infix annotation #5975 (doc)

Type System Improvements

• Fix #6199: Use a skolemized prefix in asSeenFrom when needed #6454
• Fix #6385: Don't instantiate hk type constructors too early #6467
• Skolem based gadt constraints #5736
• Fix #6288: Allow Singletons in Unions #6299

Scala 2 and Cats code support

• Fix #6484: Properly unpickle some Scala 2 type lambdas #6494
• Fix #6242: package objects leak members from Any and Object #6498

Compiler Development

• Full bootstrap: Use Dotty as the reference compiler #5923

Contributors

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

According to git shortlog -sn --no-merges 0.14.0-RC1..0.15.0-RC1 these are:

   191  Martin Odersky
   112  Nicolas Stucki
    29  Guillaume Martres
    25  Olivier Blanvillain
    21  Aleksander Boruch-Gruszecki
    17  Anatolii Kmetiuk
    10  Miles Sabin
     9  Liu Fengyun
     8  Aggelos Biboudis
     8  Jentsch
     5  Sébastien Doeraene
     2  Anatolii
     1  Fengyun Liu
     1  Olivier ROLAND
     1  phderome

Reporting Bugs

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

0.14.0

Release Dotty 0.14.0

0.14.0-RC1

Notable Changes

Syntax

• Add Export as a Dual of Import #6169
• Implement creator applications #6084
• Change syntax of splices and quotes #5918

Features

• Add the method #5893
• Add an immutable array type #5885

Issue Fixes

• Fix #6007: Get the classloader that loaded the application #6017
• Fix #3248: support product-seq pattern #5989

Other

• Don't uncondtionally emit forwarders as ACC_SYNTHETIC #6173
• Simplify Scala 2 trait support #6040
• Move Staging to Typer #5846

Contributors

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

According to git shortlog -sn --no-merges 0.13.0-RC1..0.14.0-RC1 these are:

   230  Martin Odersky
   174  Nicolas Stucki
    74  Liu Fengyun
    55  Guillaume Martres
    26  Olivier Blanvillain
    12  Aleksander Boruch-Gruszecki
    10  Aggelos Biboudis
     9  Anatolii Kmetiuk
     8  Miles Sabin
     4  Dale Wijnand
     4  Allan Renucci
     2  Lionel Parreaux
     2  Alex Zolotko
     2  Fengyun Liu
     1  tim-zh
     1  Jim Van Horn
     1  Jentsch
     1  Jasper Moeys
     1  Master-Killer
     1  Ignasi Marimon-Clos
     1  Dotty CI
     1  Dmitry Petrashko
     1  Olivier ROLAND
     1  Robert Stoll
     1  Seth Tisue
     1  Sébastien Doeraene
     1  Tomasz Godzik
     1  Victor
     1  gnp
     1  Johannes Rudolph

Reporting Bugs

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

0.13.0

Release Dotty 0.13.0

0.13.0-RC1

Notable Changes

Language

• Syntax changes for new implicits #5825
• Simplify Source Positions #5713
• Realizability: extra tests and code fix from #5558 #5726
• Import Implied #5868
• Improvements to Typeclass Derivation #5839
• Change Implicit Resolution Rules #5887
• Base multiversal equality on typeclass derivation #5843
• An Alternative to Implicits #5458
• Allow toplevel definitions #5754
• Add typeclass derivation #5540
• Add support for lambda serialization #5837

Meta-programming

• Extract quote reification from Staging phase #5763

Tooling

• Translate the sbt-bridge to Java. #5596
• SemanticDB generator #5761
• Embryonic but functioning JSR223 support #5686

As well as many many many bug fixes and other improvements!

Contributors

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

According to git shortlog -sn --no-merges 0.12.0-RC1..0.13.0-RC1 these are:

   309  Martin Odersky
   116  Nicolas Stucki
    52  Guillaume Martres
    42  poechsel
    22  Aggelos Biboudis
    20  Paolo G. Giarrusso
    19  Olivier Blanvillain
    11  Liu Fengyun
     5  Allan Renucci
     4  Miles Sabin
     3  Tobias Bordenca
     3  LPTK
     3  Abel Nieto
     2  Lukas Rytz
     1  lpwisniewski
     1  Adriaan Moors
     1  Georg Schmid
     1  Jentsch
     1  Marc Karassev
     1  Daniel Murray
     1  Olivier ROLAND
     1  Raphael Jolly
     1  Stéphane Micheloud
     1  Sébastien Doeraene
     1  Umayah Abdennabi

Reporting Bugs

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

0.12.0

Release Dotty 0.12.0