- Ships JVM and platform‑specific native Kotlin compiler binaries for Linux, macOS, and Windows.
- Introduces language enhancements (break/continue in when, refined array‑class literal rules, bans tailrec on open functions) and performance tweaks (lazy delegate compilation, unsigned range in‑operator, etc.).
- Fixes a wide range of IDE, debugger, and Gradle integration issues and updates docs (union vs intersect, stdlib charset links).