JetBrains officially launched Kotlin 2.3.0, featuring key updates for developers.
Key Highlights:
- Java 25 Support: Generate classes compatible with the latest Java version.
- Swift Interoperability: Improved native development with direct export of enums and variadic parameters. Expect faster release compilation times.
- WebAssembly Enhancements: Default fully qualified names and new exception handling for
wasmwasi. Compact Latin-1 string storage reduces binary size. - Language Improvements:
- Explicit backing fields simplify property declarations.
- Experimental checker warns when function returns are ignored.
- Standard Library: Native UUID v4 and v7 generation.
- Compose Compiler: Critical debugging improvements for Android, providing readable stack traces even in R8-minified apps. Full compatibility with Gradle 9.0.
This release strengthens Kotlin's multiplatform ecosystem and developer experience.
