The October 17,. 2013 update for Counter-Strike: Global Offensive includes a number of improvements to the UI and GOTV. Most apparent is change made to the fog on de_nuke.

Changelog for Counter-Strike: Global Offensive for October 17, 2013

MAPS
- de_nuke: Decreased fog

UI
- Added Streams tab to Watch menu.
- Friends rich presence now also includes the map if they are reviewing a match from their Match History.
- Fixed being able to invite and message yourself in the Watch menu scoreboard.
- Fixed hitches that would happen when updating match data in Watch menu.
- Reduced memory footprint of Inventory menu.
- Added warning that will show when you have have a corrupt download from Your Games tab.

GOTV
- Players in a match can now see the number of GOTV spectators in the scoreboard.
- Added spectator count display to top live Competitive matches.
- Added support for GOTV relays to allow a much large number of spectators for top live Competitive matches.
- Added convar tv_maxclients_relayreserved which allows reserving a certain number of slots from tv_maxclients for GOTV relays.
- Added convar tv_dispatchweight which allows better control of load balancing in relay chains, defaults to 1.25 which for every 4 local spectators will send 5 spectators to each connected relay.
- Fixed empty GOTV spectator chat messages.

MISC
- Fixed a crash on startup
- Fixed not being able to equip the default weapon into a loadout slot that previously contained a decorated weapon.
- Improved decorated weapon material compositing to prevent dark patches on some weapons with clean exterior.