akka/akka — pull request #15068 by patriknw (2014-04-29 06:33:00+00:00)
Title: =act #13966 Change wrong default discardOld in UntypedActor become

This might break user code that depend on the faulty behaviour, but as far as I know we are allowed to fix bugs. It is clearly documented that the default is discardOld = true.