This Update gave my client diabeetus.
It got stuck saving first time like some others have mentioned, so closed it with Task Manager.
After that i tried again.
It downloaded the updates again and it saved successfully this time, but now when i 'Click to Start Game' i get this first window (screenshot), then it endlessly spams the second window (screenshot) until i have to close it with Task Manager again.

Edit:
This fixed it.I extracted and Replaced my old files with these. thx Nyx
you can download the abdatagrf.zip here . It comes with our all-in-one (kro/renewal/aro) patcher, which can handle the new patch file type.
I don't think we did a proper launch for it, but I plan on packing it with the abdatas from here on (as long as I remember).
Also, the new client will launch with this patcher.