We’ll be taking advantage of the continued holiday lull and performing scheduled maintenance tonight from 7:00pm to 11:00pm PST. The following changes will take place:

7:00pm PST (0300 UTC) duration 1 hour: Firmware upgrade. We’ll be upgrading the firmware of the machine that hosts tinderbox.mozilla.org and bonsai.mozilla.org.
8:00pm PST (0400 UTC) duration 3 hours: RHEL5 upgrades. [...]

We’ll be taking advantage of the holiday lull and performing scheduled maintenance tonight from 7:00pm to 11:00pm PST. The following changes will take place:

7:00pm PST (0300 UTC) mozilla.org MX change.  We’ll be updating mozilla.org MX records.  No downtime is expected.
7:00pm PST (0300 UTC) duration 4 hours: Kernel upgrades.  We’ll be doing kernel security updates on [...]

We will have a scheduled maintenance window tonight from 6:00pm to 12:00pm PST. The following changes will take place:

7:00pm PST (0300 UTC) addons.mozilla.org updates. We’ll be updating addons.mozilla.org to pick up code updates. See bug 469210 for more details. No downtime expected.
7:00pm PST (0300 UTC) Bouncer/download.mozilla.org database upgrade. We’ll be upgrading the hardware the [...]

We will have a scheduled maintenance window tonight from 7:00pm to 12:00pm PST.  The following changes will take place:

9:00pm PST (0500 UTC) addons.mozilla.org/Zeus ZXTM performance testing. We will be running a performance test of addons.mozilla.org behind a Zeus ZXTM cluster. See bug 467502 for more information (and this blog post).  No downtime is expected, [...]