All,
I'm planning to upgrade Gerrit from our 2.7-rc2 custom build to the 2.8.1 stable release on Tuesday from 01:00 to 03:00 UTC (that's 17-19:00 in SF on Monday evening).
This will result in some minor downtime while the database is upgraded. I don't anticipate it to take the full 2 hour window, but I'm being cautious because Gerrit.
-Chad