[Resolved 6:41pm PST, 28 January 2013] We have completed the rolling restarts at this time.
[Updated 6:50AM PST, 28 January 2013] We are currently undergoing rolling restarts on our main Second Life Server.
[Posted 5:45PM PST, 28 January 2013] We will be performing rolling restarts for regions on the main Second Life server channel tomorrow, Tuesday, January 29, beginning at approximately 5:00AM PST. Please refrain from rezzing no copy objects, making inworld L$ transactions and remember to save all builds.
Source: http://status.secondlifegrid.net