When working on https://github.com/apache/pekko/pull/1702 I found Scala 2.12.x is very annoying.
I suggest that we have a 1.2.x and then move to 2.0.x Where: 1.2.x: java 8 + 2.12.x supported. 2.0.x: Java 11 required, 2.12.x dropped. Maintaining 2.12.x is a wast of time , at least for me.