An update was released a short time ago for Counter-Strike: Global Offensive. It adds in a couple of things for Operation Wildfire along with including a bunch of fixes for various maps.

Changelog for CS:GO for February 26, 2016

OPERATION WILDFIRE
• Added the third Co-op Strike Mission.
• Added last comic unlock.
• Added lobby setting to tell you if you are out of missions.
• Added next mission countdown timer to journal maps.

MAPS
Cache
• Fixed one-way texture at Quad boxes
• Improved visibility of vents
• Fixed pixelwalk at B fences
• Improved matching of foot-step sounds and ground materials across the map

Coast
• Fixed pixel walk in A site
• Removed exploitable angle in B site

Royal
• Various clipping fixes

Mikla
• Fixed invisible collision near mid
• Updated radar
• Moved T spawns further back

Cruise
• Various bug fixes

Santorini
• Fixed an issue where players could get stuck on the inner walls of Café
• Fixed a pixelwalk at mid

MISC
• Fix for a func_tracktrain that could pass through players when they were overlapping.

SDK
• Added the vscript function StopSound.

(via Counter-Strike.net)