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Scala 2.13.8 draft release notes #803

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The Scala team at Lightbend is pleased to announce the availability of Scala 2.13.8.

This is a modest, incremental release focused on addressing regressions in 2.13.7.

### Highlights

* Make REPL work again on Mac M1 (upgrade JLine & JNA) ([#9807](https://github.com/scala/scala/pull/9807) by [@SethTisue](https://github.com/SethTisue))
* Fix slicing of views of `IndexedSeq`s (including fixing 2.13.7 `reverseIterator` regression) ([#9799](https://github.com/scala/scala/pull/9799) by [@som-snytt](https://github.com/som-snytt))
* Fix 2.13.7 regression in implicit resolution ([#9829](https://github.com/scala/scala/pull/9829) by [@joroKr21](https://github.com/joroKr21))
* Fix 2.13.7 `releaseFence` regression affecting GraalVM compatibility ([#9825](https://github.com/scala/scala/pull/9825) by [@lrytz](https://github.com/lrytz))
* Fix 2.13.7 regression affecting wildcards and F-bounded types ([#9806](https://github.com/scala/scala/pull/9806) by [@joroKr21](https://github.com/joroKr21))

A few small changes that will ship in 2.12.16 are also included in this release.

For the complete 2.13.8 change lists, see [all merged PRs](https://github.com/scala/scala/pulls?q=is%3Amerged%20milestone%3A2.13.8) and [all closed bugs](https://github.com/scala/bug/issues?utf8=%E2%9C%93&q=is%3Aclosed+milestone%3A2.13.8).

## Compatibility

As usual for our minor releases, Scala 2.13.8 is binary-compatible with the whole Scala 2.13 series.

Upgrading from 2.12? Enable `-Xmigration` while upgrading to request migration advice from the compiler.

## Contributors

A big thank you to everyone who's helped improve Scala by reporting bugs, improving our documentation, spreading kindness in discussions around Scala, and submitting and reviewing pull requests! You are all magnificent.

This release was brought to you by 8 contributors, according to `git shortlog -sn --no-merges @ ^v2.13.7 ^2.12.x`. Thank you A. P. Marki, Seth Tisue, Georgi Krastev, Jason Zaugg, Lukas Rytz, Martijn Hoekstra, Philippus Baalman, Chris Kipp.

Thanks to [Lightbend](https://www.lightbend.com/scala) for their continued sponsorship of the Scala core team’s efforts. Lightbend offers [commercial support](https://www.lightbend.com/lightbend-platform-subscription) for Scala.

## Scala 2.13 notes

The [release notes for Scala 2.13.0](https://github.com/scala/scala/releases/v2.13.0) have important information applicable to the whole 2.13 series.

## Obtaining Scala

Scala releases are available through a variety of channels, including (but not limited to):

* Bump the `scalaVersion` setting in your sbt-based project
* Download a distribution from [scala-lang.org](https://scala-lang.org/download/2.13.8.html)
* Obtain JARs via [Maven Central](https://search.maven.org/search?q=g:org.scala-lang%20AND%20v:2.13.8)