Scala 3 Overhauls Language for Better Developer Experience
InfoQ Homepage News Scala 3 Overhauls Language for Better Developer Experience
Eight years in the making with 28,000 commits, 7400 pull requests, and 4100 closed issues, Scala 3.0 has been released, delivering a "complete overhaul of the Scala language" with new features, updates to the syntax and type systems, and new tools for metaprogramming. The Scala compatibility reference heralds version 3 as a "game changer [...] that will greatly improve the day-to-day experience of every Scala programmer". Scala 3 is binary backwards-compatible with Scala 2.13, but not fully source-compatible. The new Dotty compiler can automatically migrate old code and report any remaining issues.
Scala 3.0 is more concise with its new syntax. The new keyword is now optional (similar to Google having introduced this feature in Dart 2.0), as are parentheses in expressions of control structures. Some occurrences of curly braces may be replaced with source code indentation, a well-known feature of Python.
