Notable Changes

Syntax

Fix #9829: Allow as in place of @ for pattern bindings #9837
Change wildcard given selectors #9949
Keep @Alpha optional #10093

Scala.js

Scala.js: Implement non-native JS classes. #9774
Scala.js: Implement the PrepJSInterop phase, minus exports handling. #9725

Optimization

Port classfile parsing improvements #10037
Semanticdb usability enhancements #9768
Optimize core and frontend #9867

Contributors

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

According to git shortlog -sn --no-merges 0.27.0-RC1..3.0.0-M1 these are:

   171  Martin Odersky
    94  Nicolas Stucki
    75  Liu Fengyun
    62  Aleksander Boruch-Gruszecki
    50  Filip Zybała
    35  Krzysztof Romanowski
    34  Anatolii Kmetiuk
    32  Sébastien Doeraene
    31  Guillaume Martres
    28  Jamie Thompson
    20  bishabosha
    19  Guillaume Raffin
    16  Krzysztof Romanwoski
    12  Ruslan Shevchenko
     9  Tom Grigg
     6  Som Snytt
     5  odersky
     5  Andrzej Ratajczak
     4  Michał Pałka
     3  Adrien Piquerez
     3  Tudor Voicu
     3  noti0na1
     2  Krzysztof Bochenek
     2  Tudor
     2  Raphael Jolly
     2  Miles Sabin
     1  Vasil Vasilev
     1  ansvonwa
     1  Greg Zoller
     1  felher
     1  gzoller
     1  zgrybus
     1  Fengyun Liu
     1  Philippus Baalman
     1  Krzysiek Bochenek
     1  Tomasz Godzik
     1  ysthakur

Reporting Bugs

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