- Added new compiler features including custom @RequiresOptIn messages, trailing commas, function reference vararg support, and extensive type inference improvements
- Improved performance and IDE experience with faster incremental analysis, reduced editor lag, optimized imports, and many fixes for inline, lazy, concurrency, and bytecode generation issues
- Updated documentation, introduced deprecations for Xexperimental flag and experimentality annotations, and added IDE enhancements such as color‑scheme rules, auto‑import quick‑fixes, and new IntelliJ features