Kotlin FAQ, su kotlinlang.org. URL consultato il 26 agosto 2021.
«Kotlin lets you choose the version of JVM for execution. By default, the Kotlin/JVM compiler produces Java 8 compatible bytecode. If you want to make use of optimizations available in newer versions of Java, you can explicitly specify the target Java version from 9 to 17. Note that in this case the resulting bytecode might not run on lower versions.»
