The patch kicked off with the addition of two new danger zones, Corsairs’ Cove and Coldsnap Village, which are in the “extreme difficulty” range and shouldn’t be attempted lightly. Five of the game’s classes and sub-classes also received second awakening questlines, which when completed will transform the Assassin, Catspaw, Wolf Guardian, Psion, and Vamp into noble (advanced) versions.
There’s a lot of other little improvements, such as five more pets, multiple class skill adjustments, plenty of new special titles, a third force of Etherforce, and brand-new pet gems. These gems increaes the power level of faithful companions and can be upgraded over time.
Source: Patch notes