JetBrains debuts Kotlin 2.0.0 with K2 compiler performance boost
With the newly released Kotlin 2.0.0 language, JetBrains offers the K2 compiler for improved performance and the open source Kotlin dataset for large language (LLM) model creators.
Kotlin 2.0.0 was announced on May 23. With this release, K2 reaches the stable state, having been completely rewritten based on a new architecture. The rewritten compiler boosts performance and daily productivity, JetBrains said. Compilation time is as much as two times faster with Kotlin 2.0.0 versus Kotlin 1.9.20. The new K2 compiler is more consistent with an improved ability to understand code, according to JetBrains.