CSGO has been updated to version 1.34.6.9

Release Notes for 1/28/2014
 
[GAMEPLAY]
- Adjusted the radius at which incendiary and smoke grenades interact.
 
[UI]
- Loading screens will now display the icons for maps that have item collections associated with them
- In Spectator Mode, Scoreboard and Server Graphic will now obey hud scale and position settings.
- Fixed New Items alert showing incorrect number of items up when coming back to main menu from a match
 
[MISC]
- Added server convar tv_allow_camera_man_steamid that should be set on tournament servers to the full 64-bit numeric SteamID of production caster (e.g. 7650123456XXXX). Tournament production casters who launch the game with the "-interactivecaster" command line flag and join the in-game spectators will get all camera and voice recorded and broadcast on GOTV.
- Upgraded runtime libraries to use the latest Steam SDK.
- Fixed a frequent crash during map loading while the game was minimized.
- Various weapon CPU optimizations.
- Added flavor text to Chroma Case weapons.
 
[MAPS]
-Mirage
--Fixed a bug where a boosted player in T spawn could peek into mid/CT sniper position.
--Moved a prop to make peeking into palace easier, CT side.
--Removed a strange boost in bombsite A.
 
-Nuke
--Fixed a bug where an incendiary grenade could explode on bombsite B ceiling beams and damage players in A site.
 
-Overpass
--Rerouted entrance into upper park from bombsite A.
--Changed mid cover in bombsite A, corners can now be shot through with rifles.
--Changed cover in T side of upper park.
--Moved T spawns forward slightly.
--Moved bombsite A plant zone up slightly.

I think they meant:

-Mirage
-- Made an already CT side map more CT.