Sa3di said right : there are many bugs in 1.1, like knife bugs, collision bugs when two players are too close. And we can saw many dynamite bugs (explode without death more than 1.0) and dynamite which thrown thought walls (in alamo II or Tijuana for example)
And of course still the annoying spawn-bug (not fix since 1.0).
Otherwise guns' rates are different in 1.1 ? It seems shotgun are less powerful and rifles its the opposite. Pistols seems to have less powerful too. It's just an impression or not ?
I hope bugs will be fix by patch or future version. It's really infuriating when a bug miss a good skill in game.