I'm not sure how to best describe it, but viewing ANY post normally now has this pop up above where normally the Pool/Series bar like a search would. It happens even if I'm opening a random post on the front page and didn't search for anything.
Screenshot: https://d.filebox.moe/ecrpeyrb.png
It happens even in Pools, click up any Series/Collection, click on ANY post, and press A/D. Instead of shuffling to the previous/next post in said Pool, it gives the next one according to the search, again even when you're not searching anything at all.