Kotlin 2.1.20 Released with Key Updates

The latest release of Kotlin, version 2.1.20, brings enhanced performance and numerous bug fixes. Highlights include updates to the K2 compiler with a new default kapt compiler plugin, a new DSL for Kotlin Multiplatform projects, and improvements in Kotlin/Native runtime performance through inlining optimization. Additional updates include active custom formatters in Kotlin/Wasm development builds, support for custom publication variants in Gradle, and enhancements to the standard library, including common atomic types, and time-tracking features. To install Kotlin 2.1.20, users should update their build scripts to use the new version since it is no longer possible to install the plugin from JetBrains Marketplace.