soq_4

Another really big change is the AnyRefMap class which provides a very fast mutable hashmap. There's also a specialized map for keys of type long.

I really hope that you guys aren't planning to pull a Python 3 with the 3.x series. We're using Scala quite heavily in our production systems and the naysayers will have a great "I told you so" moment of we end up sitting on a ton of critical Scala code which no longer compiles in a future version.