[CANCELLED 7:25 AM PDT, 2 July 2013] This weeks rolling restarts for the main Second Life Server channel have been cancelled.
[Posted 11:19 pm PDT, 1 July 2013] We will be performing rolling restarts for regions on the main Second Life server channel on Tuesday, July 2, 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