I love the optimization in this update, it made a huge difference for me at least (im getting the same fps on dx9 with -default that I could only get with d8/maxframes pre update)
However, I think the quickiebomb, a weapon that was already very good and very annoying to play against got an insane undeserved buff. Imho it's broken now, I really hope they'll revert it. I mean come on, you can actually put stickytraps with it now and the quick det stickies have a 0.2 second delay til they can det as opposed to the default 0.7 secs. That's pretty unreasonable.