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Micronaut Framework 5.0 supports Kotlin 2.3

by Sergio Del Amo Caballero Tags:

Micronaut Framework 5.0, to be released in Q2 2026, supports Kotlin 2.3. Kotlin 2.3. main highlights are:

  • Language: More stable and default features, unused return value checker, explicit backing fields, and changes to context-sensitive resolution.
  • Kotlin/JVM: Support for Java 25.
  • Kotlin/Native: Improved interop through Swift export, faster build time for release tasks, C and Objective-C library import in Beta.
  • Kotlin/Wasm: Fully qualified names and new exception handling proposal enabled by default, as well as new compact storage for Latin-1 characters.
  • Kotlin/JS: New experimental suspend function export, LongArray representation, unified companion object access, and more.
  • Gradle: Compatibility with Gradle 9.0 and a new API for registering generated sources.
  • Compose compiler: Stack traces for minified Android applications.
  • Standard library: Stable time tracking functionality and improved UUID generation and parsing.