Currently we are awaiting patches from Ubuntu and Debian (for Jessie) for further updating.
While doing the updates at night we found some issues with the image the datacenter provides us at install time which caused network issues on kernel updates. We have fixed this. Orion and Quasar are planned for a reboot tonight at midnight.
Comet, Dione, Europa, Proxima, Sirius, Tachyon and Titan are awaiting patches from Ubuntu. We have no ETA on those from Ubuntu.