[Resolved 8:37am PDT, 14 May 2013] Today’s rolling restarts have been completed.
[Updated 6:01 am PDT, 14 May 2013] Rolling restarts for the main Second Life server channel are now in progress.
[Posted 07:55 pm PDT, 13 May 2013] We will be performing rolling restarts for regions on the main Second Life server channel on Tuesday, May 14, beginning at approximately 5:00AM PDT. Please refrain from rezzing no copy objects, making inworld L$ transactions and remember to save all builds.
Source: http://status.secondlifegrid.net