If you'll have a problem:
Running Updater says: No update needed.
But loging in says: The network reports your client is an incorrect version, update the client.
Running Updater again says: No update needed.
You'll have to move faction008.dat (or any other needed file, but I prefered it, because it has really low size) to other folder or delete it, and then run update, so it'll be updated.
eeerrrm, few days rollback? O_o
Btw, yea.