We're still doing some testing to ensure all nodes are on the same page. We've asked exchanges to hold off on updating and opening up trading until we're sure that everything is working as it should. Once we know everything is working and the majority of people are updated (If you're using a version older than 1.2.1 and are continuing to use it because it seems to be working, you still NEED to update to 1.2.1.) we'll contact the exchanges and help them with updating everything so we can get withdrawals & deposits opened up again.