The Test Realm will be going offline for about an hour at 6:45 pm US Central to apply an update. Please see the Test Realm's Update Notes Page for a complete list of updates. (Scroll to the bottom: Upkeep and Maintenance – Spiral Date 454417 (5/17/2013).)
NOTE: We are encouraging all those who have logged into the Test Realm previously, to please log in again and test the new difficulty changes and quest changes. We appreciate your efforts, and would love to hear more of your feedback.