JetBrains has made headlines with the unveiling of Kotlin 1.9. This debut is marked with numerous improvements, with a major highlight of K2 compiler beta version for the JVM platform.
The K2 compiler, set to fully launch with Kotlin 2.0, has undergone a full redesign from its original structure. Superior speed, extensibility, thorough bug fixes and the eradication of lingering technical debt from the prior compiler are hallmarks of this new frontend compiler. Furthermore, the K2 compiler lays a robust groundwork for accommodating future language extensions.
JetBrains vision includes enhancing K2 compatibility with different compiler plugins to extend its multiplatform functionalities. "Our objective is to ensure full beta-quality support for multiplatform projects using K2 alongside the stable release of Kotlin Multiplatform," commented Sarah Haggarty, a Kotlin technical writer at JetBrains in a recent blog post.
Moreover, this recent update has promoted a series of formerly introduced features to stable status. For instance, the function of the enum class values has been replaced and the ..< operator for open-ended ranges is now available.
Other fresh features introduced in Kotlin 1.9 comprise a new extension function designed for creating parent directories and a unique function for fetching regex group content by its name.
The launch of Kotlin 1.9 also previews a custom memory allocator and library linkage. It also provides a glimpse of the Gradle configuration cache in Kotlin Multiplatform and changes envisaged for Android target support in Kotlin Multiplatform.
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