I second this question - was looking forward to playing this afternoon with my girlfriend, we've been having fun with alpha. Forced to update the client (I thought forced updates were going away)? So I updated the server. Performance has dropped quite a bit, and a number of things are broken now, some of the issues I've seen include:
-- General performance has dropped considerably
-- Distant areas staying lit as night falls
-- duplicate items dropped after being killed that can't be picked up
-- jittery "ghost" blocks left behind after removing them
I'm disappointed - alpha was working well for us. Is there any way to roll back to previous version? Good luck with the bugfixes tho!