0.20.0-RC1

Notable Changes

Language

• Syntax change for type parameters of extension methods #7455
• Infer private[this] #7411
• Tweaks to indent syntax #7363
• Fix #7078: Allow <: T in given alias definitions #7334
• Allow normal parameters after given parameters #7317
• Make then optional at line end #7276

Metaprogramming

• Fix #7189: Do not try to load contents if file does not exist #7476
• Add customizable names for definitions in quotes #7346
• Rename scala.quoted.matching.{Bind => Sym} #7332
• Replace AsFunction implicit class with Expr.reduce #7299

Contributors

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

According to git shortlog -sn --no-merges 0.19.0-RC1..0.20.0-RC1 these are:

    99  Martin Odersky
    64  Nicolas Stucki
    16  Nikita Eshkeev
    15  Guillaume Martres
     9  Robert Stoll
     8  Anatolii
     5  Liu Fengyun
     5  Olivier Blanvillain
     3  Miles Sabin
     2  Aggelos Biboudis
     2  Jamie Thompson
     2  Antoine Brunner
     2  Ben Elliott
     2  Guillaume R
     1  noti0na1
     1  Ashwin Bhaskar
     1  Batanick
     1  Bojan Dunaj
     1  Harpreet Singh
     1  Lucas
     1  Lucas Jenß
     1  Martijn Hoekstra
     1  bishabosha
     1  brunnerant

Reporting Bugs

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

0.19.0

Release Dotty 0.19.0

0.19.0-RC1

Notable Changes

Syntax

• Make indentation significant in old-style control syntax #7235
• Don't require colon after class or object signatures #7185
• Replace the[...] by summon[...] #7205
• Allow given bindings in patterns #7194
• Replace delegate match with summonFrom. #7201
• Switch to ? for wildcard types #7144
• Require (...) around parameters of a lambda #7156
• Drop old syntax styles for givens #7245

Macros

• Upgrade to scala-library 2.13.1 #7263
• Detect macro dependencies within the current run #7192
• Add dotty-staging.g8 in the staging documentation #7165
• Intrinsify scala.compiletime.testing.typeChecks #7129

Contributors

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

According to git shortlog -sn --no-merges 0.18.1-RC1..0.19.0-RC1 these are:

    87  Martin Odersky
    50  Nicolas Stucki
    42  Guillaume R
    33  Nikita Eshkeev
    20  Guillaume Martres
     9  Liu Fengyun
     8  Anatolii
     5  Robert Stoll
     3  Miles Sabin
     1  Sam Desborough
     1  Anatolii Kmetiuk
     1  Jon Pretty
     1  Oron Port
     1  Aggelos Biboudis

Reporting Bugs

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

0.18.1

Release Dotty 0.18.1

0.18.1-RC1

Notable Changes

Language

• Implement @main functions #6898
• Allow infix operators at start of line #7031
• Drop do while #6994
• Alternative Syntax for Control Expressions #7024
• Allow significant indentation syntax #7083
• Change indentation rules to allow copy-paste #7114
• Switch to the 2.13 standard library #7019
• Allow collective parameters for extension methods #6985
• Implement generic number literals #6919

Metaprogramming

• Add toExprOfTuple in scala.quoted #7037
• Make toExprOfTuple produce tuples with precise types #7076
• Add quoted.Liftable[TupleN] with N > 22 to the stdlib #6947
• Add quoted.Liftable[BigInt] and quoted.Liftable[BigDecimal] to the stdlib #6944
• Add quoted ExprOps toExprOfSeq #6935
• Re-contextualize Liftable.toExpr #6924
• toExprOfTuple method with precise types #7047
• Factor out staging from the core of scala.quoted #7077
• Add scala.quoted.Liftables to the stdlib #6928
• Remove scala.quoted.QuoteError #6925
• Create dotty-staging library #7080

Type class derivation

• Add documentation for type class derivation #7063
• Removed redundant Shape type #6964
• Support implicit scope augmentation for Mirror #6879

Other

• [DOC] Add ScalaDays 2019 talks #6984
• Release sbt-dotty 0.3.4, future-proof isDotty #7120
• In Scala.js mode, compile all lazy vals as thread-unsafe. #7026

Contributors

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

According to git shortlog -sn --no-merges 0.17.0-RC1..0.18.1-RC1 these are:

   106  Nicolas Stucki
    84  Martin Odersky
    68  Guillaume Martres
    26  Liu Fengyun
    24  Jamie Thompson
    23  Miles Sabin
    16  Anatolii
     8  Sébastien Doeraene
     7  bishabosha
     4  Aggelos Biboudis
     4  Michał Gutowski
     2  odersky
     2  Nikolay
     1  Master-Killer
     1  Ashwin Bhaskar
     1  Carlos Quiroz
     1  =
     1  Olivier Blanvillain
     1  SrTobi

Reporting Bugs

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

0.17.0

Release Dotty 0.17.0

0.17.0-RC1

Notable Changes

Language

• Remove support for symbol literal singleton types #6764
• Fix implicit scope implementation #6832

Metaprogramming

• Move reflection inside QuoteContext #6723
• Remove pickled type splice type tags when unpicking #6784
• Add quoted pattern type splices #6504
• Type the quoted patterns as precisely as possible #6742
• Fix #6622: Add code interpolation #6661

Organizational

• Remove 2.12 CI build #6701
• Added shapeless 3 to community build #6645
• Add issue template #6604

Feature

• String f interpolator macro #6540

Contributors

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

According to git shortlog -sn --no-merges 0.16.0-RC3..0.17.0-RC1 these are:

   119  Martin Odersky
   103  Nicolas Stucki
    38  Liu Fengyun
    33  Guillaume Martres
    33  Sara Alemanno
    17  Anatolii
    10  Aggelos Biboudis
     6  Miles Sabin
     5  Anatolii Kmetiuk
     4  Olivier Blanvillain
     4  Robert Stoll
     3  odersky
     2  Dale Wijnand
     2  Timothée Floure
     2  Rodrigo Fernandes
     2  James Thompson
     2  Steven Heidel
     1  Stéphane MICHELOUD
     1  bishabosha
     1  noti0na1
     1  Daniel Reigada
     1  Haemin Yoo
     1  Bunyod
     1  Deon Taljaard
     1  Ondra Pelech
     1  Jon Pretty

Reporting Bugs

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

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