Following recent server problems, CCP deployed an emergency patch on Tranquility to address the stability problems in an extended downtime between 0800 and 1500 GMT. The patch also included a handful of other bug fixes and changes, including a change that now bars capital ships from entering Deadspace.

Patch notes can be found here (an active account is required to read them).

CCP also published two new Devblogs yesterday, about Kali 1 & 2 and the new Seamless Map respectively.