v2.0.0-RC2
What's New
Kotlin v2.0.0-RC2 focuses on K2 compiler maturity with extensive bug fixes for type inference, smart casting, and cross-platform compatibility. Major improvements include WebAssembly exception handling support, JavaScript ES6 compilation, and Gradle plugin enhancements for Compose and multiplatform projects. Performance gains address compilation slowdowns in complex class hierarchies.
Highlights
- K2 compiler stability improvements with 40+ bug fixes addressing type checking and inference issues
- WebAssembly backend enhancements including exception handling proposal support and build error fixes
- JavaScript compilation improvements for suspend functions and ES6 target support
- Gradle plugin updates with per-target Compose compiler configuration and cache optimization
- Kotlin Multiplatform enhancements for JSExport and improved native toolchain error messaging
- Performance optimizations reducing compilation times for classes with conflicting declarations
Deprecations
- CLI option -Xrepeat removed
- Compose plugin experimentalStrongSkipping option marked as deprecated
Recent Releases
All releases →
v2.3.20-RC
Feb 19, 2026
Release Notes →
v2.3.10
Feb 5, 2026
Release Notes →
v2.3.10-RC2
Feb 2, 2026
Release Notes →
v2.3.20-Beta2
Jan 29, 2026
Release Notes →
v2.3.10-RC
Jan 19, 2026
Release Notes →
v2.3.20-Beta1
Jan 8, 2026
Release Notes →
v2.3.0
Dec 16, 2025
Release Notes →
v2.3.0-RC3
Dec 9, 2025
Release Notes →
v2.3.0-RC2
Dec 2, 2025
Release Notes →
v2.3.0-RC
Nov 18, 2025
Release Notes →
v2.3.0-Beta2
Oct 28, 2025
Release Notes →