I'm using v2.0.0-20150427 even though the docs say v2.0.0-M4 is the latest. I found it haphazardly by starting from some example code that was using ContextWrapper instead of AppContext/ActivityContext. Even though this is newer, sbt-updates always tells me to upgrade to M4. It can be a bit confusing and probably causes some adopters to stumble. Is there going to be another milestone with this change, or a v2 release?