v2.1.0-RC2
What's New
Kotlin v2.1.0-RC2 focuses on stability fixes across the K2 compiler, Compose multiplatform support, and JavaScript interop. Key improvements include resolving iOS compilation failures, fixing method resolution bugs, and stabilizing the JavaScript backend. The release introduces official Kotlin Gradle plugin API documentation to help developers migrate from indirect compiler class usage.
Highlights
- Fixed K2 compiler method resolution issues with callable references and elvis operators
- Resolved Compose compiler iOS compilation failures with 'copy' reference errors
- Fixed JavaScript string concatenation and toString() behavior inconsistencies
- Official Kotlin Gradle plugin API now documented with KDoc and migration guides
- Improved IR inlining stability with IllegalStateException fixes
- Fixed iOS compilation regression in compiler plugins for Kotlin 2.1.0
Recent Releases
All releases →
v2.3.20-RC
Feb 19, 2026
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v2.3.10
Feb 5, 2026
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v2.3.10-RC2
Feb 2, 2026
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v2.3.20-Beta2
Jan 29, 2026
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v2.3.10-RC
Jan 19, 2026
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v2.3.20-Beta1
Jan 8, 2026
Release Notes →
v2.3.0
Dec 16, 2025
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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
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v2.3.0-Beta2
Oct 28, 2025
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