Kotlin was announced in 2011, but the first stable release, version 1.0, didn’t appear until 2016. The language is free and open source, developed by JetBrains with Andrey Breslav serving as its ...

Kotlin is a super new programming language built by JetBrains, which also coincidentally develops the JetBrains IDE that Android Studio — Google’s official developer tool — is based on.