[CANCELLED 8:34 AM PDT, 13 August 2013] Rolling restarts for the main Second Life server channel have been cancelled. Please keep an eye on the blog for further updates.
[UPDATED 7:05 AM PDT, 13 August 2013] Rolling restarts for the main Second Life server channel are now in progress.
[Posted 12:28 pm PDT, 13 August 2013] We will be performing rolling restarts for regions on the main Second Life server channel on Tuesday, August 13, 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