So...after this update, the first thing i noticed was how the graphics were worse, particularly the lighting. After changing back and forth between performance and quality/fidelity, the issue fixed itself, but it seems to return every time you go back to the main screen. (Just logging off does it too, not only restarting the game).

After returning to the main screen, i noticed how the lighting instantly changed and remained that way until i switched from performance to fidelity, then back again. That also happens when changing from fidelity to performance, meaning, if you start the game on fidelity, the graphics will actually improve if you change to performance.

Lighting and shadows seems to be the most affected thing, and maybe the anti-aliasing as well, i'm not sure what else exactly, it's quite subtle but undeniably worse, and particularly noticeable if you're looking at the lighting on your character on the inventory screen. Seems like an odd bug and i hope it gets fixed soon.