Scala 2.12.3 is now available!

Wednesday 26 July 2017

Scala 2.12.3 is now available.

Compiler performance has improved significantly and is now automatically benchmarked after each change.

A new optimizer setting -opt-inline-from limits the classes from which the inliner will copy code. scalac -opt-inline-from:help provides detailed help.

The presentation compiler has improved support for implicit macros, which should improve the experience with libraries based on Shapeless. It also has better support for code completion for dependently typed methods.

For all the details, refer to the release notes on GitHub.