Via [url=http://blog.counter-strike.net/index.php/2017/11/19757/]the CS:GO blog[/url]:

[quote=Valve][ AUDIO ]
– Improved performance of 3D audio. Positional audio is much more responsive when turning quickly.

[ War Games ]
– Players can now select from 3 maps during end-of-match voting in War Games.
– Added convars controlling end of match voting setup to simplify management of War Games community servers.

[ Misc ]
– Server HTTP log delivery will now have correct timestamps on log lines which occured before the remote listener was registered.
– Smoothed out game server hitching when a new player connects and downloads initial game state.
– Fixed occasional crash affecting official game servers.
– Fixed the extra 3 second delay in GOTV+ broadcast in some cases.
– SSE4 optimizations in network string tables to reduce server hitches on connection of new player.
– Console output of the game server can now be timestamped using “con_timestamp” convar.

[ TRUST FACTOR ]
– Updated trust algorithm based on data and feedback.

To help us further improve the Trust Factor, send us an email at CSGOTeamFeedback@valvesoftware.com with the subject “Trust Factor Feedback” and include a description of your experience and your Steam ID.[/quote]

Rumor has it:

- [b]Looks like we're getting Series 3 pins at some point[/b]: https://github.com/SteamDatabase/GameTracking-CSGO/commit/c096a217e607242f7ab687a3a24ac8df7134525f

- New pins include:
- Guardian 3 Pin
- Canals Pin
- Welcome to the Clutch Pin
- Death Sentence Pin
- Inferno 2 Pin
- Wildfire Pin
- Easy Peasy Pin
- Aces High Pin
- Hydra Pin
- Howl Pin
- Brigadier General Pin
- Unfortunately, no images have been included for these in the files or [url=https://github.com/SteamDatabase/SteamTracking/commit/edd68581db77505d4f031038586fbefb15a50e39]in the item schema[/url], so we don't know what they look like until Valve releases them somewhere, but I'm sure your imagination will give you a good idea of what will be the real thing in the meantime. Sorry!

- Size is ~25 MB