Scala 2.12.17 draft release notes

releases/2.12.17.md

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+# Scala 2.12.17 (DRAFT)
+
+The Scala team at Lightbend is pleased to announce the availability of Scala 2.12.17.
+
+This release has the following notable changes affecting compatibility:
+
+* Always emit Java 8 bytecode on 2.12, regardless of `-release`; deprecate `-target` ([#10109](https://github.com/scala/scala/pull/10109))
+* Upgrade the 2.12 scala-compiler's dependency on scala-xml to 2.1.0 (was 1.0.6) ([#10108](https://github.com/scala/scala/pull/10108))
+
+It also fixes this regression in Scala 2.12.16:
+
+* Correctly handle overloads in mixed compilation with Java inner classes (fixing 2.12.16 regression) ([#10045](https://github.com/scala/scala/pull/10045))
+
+and aids migration to Scala 2.13:
+
+* Under `-Xsource:2.13`, warn about changed precedence in imports ([#10095](https://github.com/scala/scala/pull/10095))
+
+and eases cross-compilation with Scala 3:
+
+* Accept and ignore `using` in method signature (to aid cross-building with Scala 3) ([#10075](https://github.com/scala/scala/pull/10075))
+
+and enables improved tooling:
+
+* Tooling support: Add a tree attachment to mark auto-applications ([#10063](https://github.com/scala/scala/pull/10063))
+* Tooling support: Attachments for infix Apply and postfix Select ([#10042](https://github.com/scala/scala/pull/10042))
+* Tooling support: Fix AST positions for XML literals, selections from blocks ([#10040](https://github.com/scala/scala/pull/10040))
+
+For complete 2.12.17 change lists, see [all merged PRs](https://github.com/scala/scala/pulls?q=is%3Amerged%20milestone%3A2.12.17) and [all closed bugs](https://github.com/scala/bug/issues?utf8=%E2%9C%93&q=is%3Aclosed+milestone%3A2.12.17).
+
+## Compatibility
+
+As usual for our minor releases, Scala 2.12.17 is [binary-compatible](https://docs.scala-lang.org/overviews/core/binary-compatibility-of-scala-releases.html) 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 7 contributors, according to `git shortlog -sn --no-merges @ ^v2.12.16 ^2.11.x`. Thank you Lukas Rytz, Seth Tisue, Sébastien Doeraene, A. P. Marki, Jason Zaugg, Scala Steward, Daniel Esik.
+
+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 2.12 notes
+
+The [release notes for Scala 2.12.0](https://github.com/scala/scala/releases/v2.12.0) 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):
+
+* Bump the `scalaVersion` setting in your sbt-based project
+* Download a distribution from [scala-lang.org](http://scala-lang.org/download/2.12.17.html)
+* Obtain JARs via [Maven Central](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.scala-lang%22%20AND%20v%3A%222.12.17%22)