Valve has release the latest update of Team Fortress 2, which includes the Sniper and Spy updates. Furthermore, some of the discovered bugs have already been fixed in a recent patch:

Patch fixes:
Fixed Ambassador not using hitboxes to trace against players. It now works like all other bullet-firing weapons in the game
Fixed Ambassador shooting through gates
Fixed Ambassador not critting during the round win period
Fixed control point not being named correctly on Arena Sawmill
Fixed cloaked Spies being able to taunt attack
Fixed Spy feign death not being reflected in scoreboard
Fixed Jarate effect on DX8 machines
Fixed rare crash in Spy “A Cut Above” achievement
Fixed the backpack icon appearing over the “Could not connect to Steam” message in the client inventory
Fixed German localization string for respawning players showing %1