[Resolved 1:05 pm PDT, 16 April 2013] Rolling restarts for the Main Second Life Server channel are now complete.
[Updated 6:50 am PDT, 16 April 2013] Rolling restarts for the Main Second Life server channel are in progress.
[Posted 7:55 pm PDT, 15 April 2013] We will be performing rolling restarts for regions on the main Second Life server channel on Tuesday, April 16th, 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