Second Life will be unavailable from 9:00am-11:00am PDT (16:00-18:00 GMT) for a scheduled update. No viewer update will be required.
We need to block off some time to have the grid empty for some server code upgrades and database work. We’ll be keeping the downtime as short as possible, but it looks like it make take 2 hours.
After the downtime we’ll allow logins to the grid, but shortly thereafter start a rolling restart of the grid’s regions to have them pick up the newer code. This will take approximately 3 hours to hit the whole grid.
The restarts will introduce server-side voice improvements (reducing bogus invites, etc) as well as the first iteration of our Het Grid work (no special controls for region owners yet; it simply allows Linden to have finer control over grid upgrades).
[Update: Oops, had the GMT times wrong. Sorry about that!]