2.12.8 release πŸš‚


The 2.12.8 train will soon get going, the release is planned for the end of November.

This release follows shortly after 2.12.7 to fix a few issues. Here is a list of noteworthy changes.

There is only one minor pull request open at this point. So now is a good moment to try a nightly build, we appreciate your feedback:


Any chance you upgrade to ASM 7?


Sorry, that will have to wait until after 2.13.0. We’re only making small fixes in this release to compensate for a few regressions. For 2.12.9, we can see how the ASM 7 upgrade worked out in 2.13.0 and potentially back port it.


I’m curious what would be the benefit?


The nightly build 2.12.8-bin-25c7215 will become 2.12.8 unless new regressions are discovered.


update: https://github.com/scala/bug/issues/11271 remains under discussion for 2.12.8


2.12.8 will be built today. Draft release notes: https://gist.github.com/lrytz/63c1ea7aebdb26c9437ecd299a9e20a5


The 2.12.8 binaries are now on maven-central and available for download:

Draft release notes now here: https://github.com/scala/scala/releases/tag/v2.12.8

The announcement will go out in a few days.


Macro Paradise 2.1.0 and 2.1.1 are available (thanks to @adriaanm)


Scala.js 0.6.25, 0.6.26 and 1.0.0-M6 for Scala 2.12.8 are on their way to Maven Central.


The release is now officially announced and available.


2.12.8 seems solid β€” I’m not aware of any reports of significant, alarming regressions.

there are, however:

but both tickets are in longstanding trouble areas, so it’s more like existing breakage or limitations got rearranged/redistributed a little, rather than something brand new going wrong.