Release notes here. We'd definitely appreciate some testers who are late in very large savegames that are involved with heavy human strength.
I'm not aware of any savegames that are out there where we'd want to see the extragalactic stuff kicking in, but there's the possibility that it might... so here we are in a beta again, for the moment.
To play this, on Steam make sure and go into the beta tab under properties for the game and choose current_beta. We're doing a beta version just to make sure that the extragalactic war units don't trigger unexpectedly early in some specific savegames that players have going already.
Thanks!