
In addition to the cosmetic tools, Update 2.1.5 starts this year’s winter event, starring all sorts of special critters to attack, world raids, Christmas cosmetics, seasonal achievements, a new winter lockbox, and a free pet to players who log in by January 2nd.
The patch also adds the option to change your name (for a price), fixes several issues, and tosses in new animations for when players unlock emotes and titles.
Source: Patch notes