> Gradle files (a Kotlin alternative is coming) Gradle's been able to use Kotlin for build files since Gradle 3.0 which was released last year. For Jenkins, o

> Gradle files (a Kotlin alternative is coming) Gradle's been able to use Kotlin for build files since Gradle 3.0 which was released last year. For Jenkins, only a subset of Apache Groovy can be used. None of the functional methods will work when used. Grails 2.x is still around, but virtually no-one's converting their projects to version 3, or starting new Grails projects in version 3. Groovy development has come to a standstill, and even contributions from outside developers just sit there, such as the new Antlr 4-based parser which someone contributed a whole year ago.