v2.1.0-RC

Kotlin v2.1.0-RC delivers critical stability fixes across the K2 compiler, Compose integration, and Gradle tooling. This release addresses compiler crashes in type inference, memory safety issues in Kotlin/Native, and restores compatibility with KSP and multiplatform builds that were broken in earlier RC versions.

Highlights

• Fixed Compose compiler stack overflow when inferring stability of indirect generic loops
• Resolved K2 compiler crashes with nullable keys in mutableMap and EnumMap operations
• Fixed Kotlin/Native memory barrier execution on unregistered threads
• Improved Gradle plugin compatibility with KSP and multiplatform projects
• Fixed synthetic accessor generation in IR inlining for Kotlin/Native
• Resolved daemon startup failures and CLI file manager caching issues