From the WoW Forums:从哇论坛：
This evening we will be taking down the PTRs to apply a new build with more fixes for voicechat and sound issues.今天晚上我们将采取降低ptrs申请新的建设有更多的补丁语音聊天和健全的问题。
The servers should go down around 7PM Pacific time and we expect them to be down for 4-6 hours.服务器要深入晚上7时左右，在太平洋时间，我们期望他们能脚踏实地，为4-6个小时。
Once the servers are back up please be sure to report any issues […]一旦服务器返回了，请务必报告任何问题[ … … ]

The Kirin Tor realm is down to resolve performance issues.麒麟Tor的境界是下跌来解决性能问题。 We anticipate that the realm will only be down for a short duration, and appreciate your patience in that matter.我们预期将有境界，只会脚踏实地进行了短暂的会期，并赞赏你的耐心，在这件事。 WikidraSenior Game MasterBlizzard Entertainment wikidrasenior游戏masterblizzard娱乐
Original post by Mike Schramm原职由麦克施拉姆