The 1.9.20 version of JetBrains’ Kotlin language has been published, moving the high-performing K2 compiler to a beta stage.
Kotlin 1.9.20 was announced October 31; code is available on GitHub, and update instructions also are available. With this version, the K2 compiler is now in beta for all platforms, including the JVM, native, JavaScript, and WebAssembly. It can be tried in any Kotlin project. Also, the 1.9.20 release brings K2 support in the kapt compiler plug-in. K2 is intended to substantially increase compilation performance.
