Notable Changes

• update scala library to 2.13.2 #8777
• Fix #8762: Make REPL work with indented code #8765
• Better error message for ifs that miss an else branch #8672
• Implement inline override #8543
• Fix #8530: Support inline unapply #8542

Contributors

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

According to git shortlog -sn --no-merges 0.23.0-RC1..0.24.0-RC1 these are:

 136 Martin Odersky
 74 Nicolas Stucki
 37 Guillaume Martres
 33 Robert Stoll
 22 Liu Fengyun
 19 Anatolii Kmetiuk
 16 Arnaud ESTEVE
 15 Olivier Blanvillain
 10 Arnaud Esteve
 9 Martijn Hoekstra
 6 Anatolii
 4 Som Snytt
 4 bishabosha
 4 Aleksander Boruch-Gruszecki
 3 Miles Sabin
 2 odersky
 2 Fengyun Liu
 2 Julien Richard-Foy
 1 Ara Adkins
 1 Maxime Kjaer
 1 Philippus
 1 Rike-Benjamin Schuppner
 1 Julien Jean Paul Sirocchi
 1 Dani Rey
 1 Sébastien Doeraene
 1 aesteve
 1 Dale Wijnand
 1 fhackett
 1 gzoller
 1 Michael Pilquist

Reporting Bugs

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

Notable Changes

Language

Syntax

Change to (using x: T) => E for context functions #8305
Drop given parameter syntax #8270
Fix #8256: Disallow silent indent for template bodies #8264

Features

Add bitwise Int compiletime operations #8377
Safe initialization for Scala #7789

Metaprogramming

Add scala.compiletime.summonInline #8483
Move Unliftable extractors in Unlifted #8517
Rename ValueOfExpr to Unliftable #8503
Refactor scala.quoted.matching #8479
Simplify import of qctx.tasty.rootContext #8438

Contributors

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

According to git shortlog -sn --no-merges 0.22.0-RC1..0.23.0-RC1 these are:

 165 Martin Odersky
 124 Nicolas Stucki
 121 Liu Fengyun
 45 Robert Stoll
 15 Guillaume Martres
 15 Anatolii
 10 gzoller
 8 Som Snytt
 8 Stéphane Micheloud
 5 Ausmarton Zarino Fernandes
 5 Oron Port
 3 Adam Fraser
 3 Gabriele Petronella
 3 Uko
 3 Anatolii Kmetiuk
 2 ybasket
 2 Dale Wijnand
 2 Dani Rey
 2 Jamie Thompson
 2 Olivier Blanvillain
 2 Tomasz Godzik
 2 Travis Brown
 2 Vlastimil Dort
 1 tanaka takaya
 1 Miles Sabin
 1 Andrew Valencik
 1 bishabosha
 1 fhackett
 1 Lionel Parreaux
 1 kenji yoshida
 1 manojo
 1 odersky
 1 Raj Parekh
 1 Sébastien Doeraene
 1 xuwei-k

Reporting Bugs

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

Notable Changes

Syntax

New syntax for collective extension methods #7917
Fix #7139: Implement kind-projector compatibility #7775
Change to given/using syntax #8162

Metaprogramming

API

Add constructors for TypeOrBounds that are not refs or PolyType #7961
Move unsafe operations from Expr to UnsafeExpr #8041
Add requiredXYZ symbols to TASTy reflect context #7903

Semantics

Fix #7142: Detect scope extrusions in macros and run #8000
Disallow phase inconsistent inline parameters #8061
Redefine semantics of inline parameters #8060

Other Highlights

Add primitive compiletime operations on singleton types #7628
Make suggestions of missing implicits imports on type errors #7862
Fix #6849: support irrefutable sequence match #6850
Upgrade to sbt 1.3.6, release sbt-dotty 0.4.0 #7953
Fix #7991: don't set JavaDefined for Dotty Enum module class #8008
IArray extension methods #7795
Put erased under -Yerased-terms flag #7906

Contributors

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

According to git shortlog -sn --no-merges 0.21.0-RC1..0.22.0-RC1 these are:

 192 Martin Odersky
 85 Nicolas Stucki
 57 Antoine Brunner
 42 Liu Fengyun
 29 Guillaume Martres
 23 Aggelos Biboudis
 17 Maxime Kjaer
 10 Anatolii
 7 Jamie Thompson
 4 Minghao Liu
 3 Travis Brown
 3 Andrew Valencik
 2 fhackett
 2 Dvir Faivel
 2 Nadezhda Balashova
 2 Ruslan Shevchenko
 2 Lan, Jian
 2 Anatolii Kmetiuk
 2 Yevgen Nerush
 1 Dale Wijnand
 1 odersky
 1 Dmitrii Naumenko
 1 Eric K Richardson
 1 Eric Loots
 1 Jaap van der Plas
 1 Keith Pinson
 1 Miles Sabin
 1 Alexander Shamukov
 1 Som Snytt
 1 Taisuke Oe
 1 Timothée Floure
 1 bishabosha
 1 gzoller

Reporting Bugs

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

Notable Changes

• Dotty with explicit nulls (and flow typing) #7546
• Add SemanticDB extractor #7379
• Add quoted.util.ExprMap #7570
• Improve performance of tuple operations #7689
• Change extension method syntax #7557
• Independent tasty-core library #7616

Contributors

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

According to git shortlog -sn --no-merges 0.20.0-RC1..0.21.0-RC1 these are:

 176 Martin Odersky
 171 Bryan Abate
 88 Nicolas Stucki
 81 Jamie Thompson
 44 noti0na1
 29 Anatolii
 28 bishabosha
 23 Antoine Brunner
 19 Guillaume Martres
 10 Aleksander Boruch-Gruszecki
 8 Guillaume Raffin
 6 Olafur Pall Geirsson
 5 Sébastien Doeraene
 4 Aggelos Biboudis
 4 Liu Fengyun
 4 Paolo G. Giarrusso
 3 Andrea Mocci
 3 Martijn Hoekstra
 2 Ben Elliott
 2 Patrik Mada
 2 Rafal Piotrowski
 2 odersky
 1 Markus Kahl
 1 Richard Beddington
 1 Vlastimil Dort
 1 Anatolii Kmetiuk
 1 Raphael Jolly
 1 Lucas
 1 Nikita Eshkeev
 1 Brian Wignall
 1 Olivier Blanvillain
 1 张志豪

Reporting Bugs

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

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! 🙏

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! 🙏