DC Universe Online's (DCUO) Game Update 10 (GU10)
is now live. While it's not a huge update, the patch does bring one big improvement to the game with a complete revamp of the On Duty UI. The On Duty UI was completely rebuilt to allow for quicker grouping and convenience. GU10 also comes with a number of bug fixes and game tweaks.
Patch notes for the update are available on the DCUO forums and a rundown of the new On Duty UI changes is available here.
Source: DCUO Game Update 10 Patch Notes