We've reached 1.1.2, hopefully the last quick-patch before the next large infusion of content.
So, the things fixed so far:
[fix] Weapons sometimes hard to pick up
[fix] Fast shooting exploits in shotgun and rifle
[tweak] Health indication in player identification display
[tweak] ZM resource limit
[fix] Team changes (including to spectator after death) have erratic results
[feature] Muting players
[tweak] Weaponflag resettings should be more stringent
[fix] ZM Preference window seems to stay when the camera toggles.
[fix] Zombie spawns can still be clicked when inactive
[fix] Voting for roundrestart can be spammed
[fix] DOTD chalkboard weirds out
Plus minor fixes to the maps.
As usual, if your game goes horridly wrong after patching, try reinstalling with the 1.1.2 full installer.