Our hosting provider recently received several Xen Security Advisories (XSAs) that require them to perform updates to our servers. In order to apply the updates they will need to reboot all of their machines.
The maintenance window for our cluster will begin at:
2015-03-08 3:00:00 PM UTC (11AM EDT)
Starting at this time Concourse will be unavailable.
Linode has allocated a two-hour window, though the actual downtime will likely be much less.
These updates are required to protect the security and safe operations of not only Linode's infrastructure, but ours as well. We know that a disruption is inconvenient, but we hope you understand that these measures are warranted due to the severity of the XSAs.
Update March 8, 11:02am EDT: The security update window has started and all systems have been shut down. The patching process has commenced.
Update March 8, 11:25am EDT: All patches have been successfully applied and systems rebooted. We are not observing any issues following this update. However if something is amiss do not hesitate to write us.