v2.1.21-RC
What's New
Kotlin v2.1.21-RC is a maintenance release focused on stability, fixing critical regressions in Kotlin/Native, Compose compiler, and Kotlin/JS introduced in 2.1.20. It also strengthens Gradle ecosystem compatibility through updates for Gradle 8.12 and 8.13, while addressing issues in Multiplatform projects, scripting, and native debugging with Xcode 16.3.
Highlights
- Fixed critical crashes in Kotlin/Native with generic value classes and GC collection
- Resolved Compose compiler issues with key function and group generation
- Enhanced Gradle plugin compatibility with versions 8.12 and 8.13
- Fixed Xcode 16.3 integration for Native debugging and stack trace symbolication
- Addressed Kotlin/JS KotlinNothingValueException regression from 2.1.20
- Improved Kotlin Multiplatform dependency resolution for test fixtures and source sets
Deprecations
- Gradle internal ExecHandleBuilder usage removed for future compatibility
- Task.project access during execution deprecated in Gradle 8.12 and later
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 →