Scala v2.12.18 released!

[NewsBot]

Scala v2.12.18 has been released.

This release improves compatibility:

• Support JDK 20 and 21 with ASM 9.5 upgrade, by @Philippus (#10185, #10362)
• Fix crash reading JDK 21 classfiles (#10397)

It also aids migration to Scala 2.13 and Scala 3:

• Under -Xsource:2.13, warn when inherited takes precedence over outer definitions (#10297, #10321)
• Under -Xsource:2.13, flag eta-expanding methods without parameter lists (#10283)
• Under -Xsource:2.13, don’t GLB binders of type patterns, use the type directly (#10298)

and improves linting:

• Lint for integral divisions that are widened to a float (#10313)

and enables improved **to…

Link: Release Scala 2.12.18 · scala/scala · GitHub