Kotlin 1.8.0, an upgrade to the JetBrains-developed, statically typed language for multiplatform mobile, web, and native development, is available in a beta release. The new version introduces experimental functions for the JVM.
The standard library in Kotlin 1.8.0 adds new experimental functions for java.nio.file.path that can recursively copy or delete directory content. Experimental functionality also has been added to TimeMarks, allowing elapseNow to read from multiple TimeMarks simultaneously. Opt-in is required for both sets of new functionality. Kotlin 1.8.0 also stabilizes extension functions for java.util.Optional.
