As mentioned in our previous news post, Zoo and Abbey are now available in Competitive mode on Counter-Strike: GO. Next to the new maps in this mode, Valve has also been working on improving Vertigo with a bunch of fixes. Down below a whole changelog of changes for this update to the game:

[ MAPS ]
– Zoo and Abbey are now available in Competitive matchmaking.

Zoo:
– Visual updates overall to match present standards
– Replaced SWAT with FBI
– Reduced the amount of corners/spots at B site
– Removed glow effects from wall mounted fixtures to prevent smoke exploits
– Replaced foliage at interior lower mid to improve sightlines
– Raised ceiling in connector between T spawn and A mid
– Moved swinging tire out of the way of sightlines
– Increased infographics’ resolution
– Removed dead guy at T spawn
– Disabled collision on some foliage
– Fixed minor visual glitches

Abbey:
– Opened mid skybox allowing T’s to throw grenades from river area
– Opened mid skybox allowing players to throw grenades from A bombsites
– Opened A skybox allowing T’s to throw grenades from right alley
– Replaced window model with wider one in library (T’s side of middle)
– Added block bullets brushes in some places to prevent full penetration
– Optimization
– Removed bomb stuck spots
– Enabled collision on window models
– Reduced size of clip brushes in some places
– Added missing overlays
– Fixed various clipping issues
– Added new 3d skybox
– Removed tiny mountain
– Added some color to the map
– Added building on mid

Vertigo:
-Made door into B site from CT side twice as wide
-Improved collision model of large HVAC units
-Blocked visibility under HVAC units
-Tweaked layout of staircase leading up to B site
-Blocked visibility from T spawn to B site catwalk
-Added some props near staircase to minimize fall damage
-Tweaked layout of bombsite B target
-Brightened ambient sunlight

[ MISC ]
– Fixed game state integration truncating long workshop map names.
– Fixed localization strings in some languages displaying numbers with zeroes after decimal point.