I agree that "x.y.z" should be reserved for the frozen release version of the docs and that the current ongoing version should be "x.y (trunk)" or "x.y.z+".  This was true without new features in a micro release, but did not matter so much.  Leaving Idle aside, I am not sure how we should handle the new exception in other stdlib modules.  There may or may not be more documented additions past 2.7.9.