v2.2.20-RC

Kotlin v2.2.20-RC delivers critical stability fixes across compiler, Wasm, JavaScript, and Compose backends. This release addresses dexing failures, exception handling in Safari, BigInt correctness, and serialization edge cases that affected v2.2.0. Mobile developers using Kotlin Multiplatform, Compose, and Wasm will benefit from improved reliability and correctness.

Highlights

• Fixed critical compiler bugs affecting dexing, type aliases, and value class inlining
• Resolved Wasm exception handling issues in JavaScriptCore and Safari environments
• Corrected JavaScript BigInt behavior for Long operations and ES version targeting
• Fixed Compose compiler lambda memoization and function override issues
• Improved serialization to properly exclude field-less properties
• Enhanced Kapt with better nested class reference handling in K2