This is true, but I think it's worth looking at how far behind Scala 2.12 is from its initial release date The original roadmap: http://www.scala-lang.org/news

This is true, but I think it's worth looking at how far behind Scala 2.12 is from its initial release date The original roadmap: http://www.scala-lang.org/news/2.12-roadmap/ http://www.scala-lang.org/news/2.12-roadmap/ The current roadmap: http://www.scala-lang.org/news/2016-schedule/ http://www.scala-lang.org/news/2016-schedule/ For reference, M4 was released 3 days ago. JDK8 was released a little over 3 years ago, and JDK9 is about a year away which will introduce some interesting challenges. We've yet to see how fast JetBrains will iterate on Kotlin and support for JDK8, while we know exactly how fast Scala iterates.