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Scala 2.12.15
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@SethTisue SethTisue released this 14 Sep 19:45
· 9811 commits to 2.13.x since this release
v2.12.15
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SethTisue Seth Tisue
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Learn about vigilant mode.
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Learn about vigilant mode.

This release improves compatibility with JDK 17 and 18:

  • Avoids IllegalArgumentException in JDK 17+ for lambda deserialization (#9676)
  • Upgrades to ASM 9.2, for JDK 18 support in optimizer (#9701)

and facilitates cross-building with Scala 3 with:

  • Allow case in pattern bindings even without -Xsource:3 (#9740 by @smarter)
  • Allow import x.{*, given} under -Xsource:3 (#9736 by @smarter)
  • Handle star in import selector (under -Xsource:3) (#9665 by @som-snytt)

For complete 2.12.15 change lists, see all merged PRs and all closed bugs.

Compatibility

As usual for our minor releases, Scala 2.12.15 is binary-compatible with the whole Scala 2.12 series.

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 4 contributors, according to git shortlog -sn --no-merges @ ^v2.12.14 ^2.11.x. Thank you Jason Zaugg, Seth Tisue, A.P. Marki, Guillaume Martres.

Thanks to Lightbend for their continued sponsorship of the Scala core team’s efforts. Lightbend offers commercial support for Scala.

Scala 2.12 notes

The release notes for Scala 2.12.0 have important information applicable to the whole 2.12 series.

Obtaining Scala

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

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