Yes, that's right. You'll now need this new client to be able to play Ultimatum. We have been moved to a faster/cleaner VPS which should be a lot smoother for you guys!
Download here!

What you waiting for? Download it now and get playing!

NOTE: All player saves are up to date, so no worry about loss of XP/Items/Levels.
Also please bare in mind that you need the play the old client until I announce the re-opening of the server.