The Oasis, Unrest and Battlegrounds will have an extensive 11-12 hour downtime beginning at 3:30am PT on Tuesday, April 7, 2015 for server migration and maintenance.

US live servers will be brought offline on Tuesday, April 7th at 7am PT for an update. Estimated downtime is approximately one hour. EU servers will be brought offline at 9pm PT (5am London Time on April 8th) for an update. Expected downtime is one hour.

Here are the patch notes: