Valve has released a Counter Strike: Global Offensive video showing off two new maps which were released as part of an update for the PC version today.
The new maps include a remake of the classic Counter-Strike map Vertigo, as well as a new arms race map entitled Monastery.
The update also made a large number of other small changes. Tweaks to the Classic Competitive mode include penalties for leaving a game while in progress: now, if a player leaves a game early they'll need to wait out a 30 minute cooldown period unless they rejoin that game.
Players will no longer be able to join a game in progress unless they've disconnected from it, meaning that for each new session players will join a matchmaking queue.
The full list of fixes is over on Steam.