Version 2.8.4 - Just updated this afternoon.
I don't know - is this where we're supposed to post bug reports?
The Category filter feature of Edit Posts is broken. I am unable to filter on a particular category, it goes through the motions, but returns the entire list of posts, all categories. This sucks for me because I have about 1200 posts, and the category I need to edit most contains only 6 at the moment.