v1.8.20-RC2
What's New
Kotlin v1.8.20-RC2 is a bug fix release addressing critical compiler regressions, particularly around value class equality semantics and K2 compilation stability. This RC resolves Gradle plugin issues affecting multiplatform projects and Kotlin/JS builds, plus fixes platform-specific problems like Windows line ending handling and Kapt integration failures.
Highlights
- Fixed value class equals behavior regression between 1.8.10 and 1.8.20-RC
- Resolved Kapt+JVM_IR compiler crash with delegated properties
- Fixed K2 compiler assertion errors during compilation
- Corrected Windows CRLF line ending handling in K2
- Resolved Kotlin Gradle Plugin multiplatform metadata transformation issues
- Fixed KJS/Gradle empty sourceset publishing FileNotFoundException
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
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v2.3.0-RC
Nov 18, 2025
Release Notes →
v2.3.0-Beta2
Oct 28, 2025
Release Notes →