Via [url=https://blog.counter-strike.net/index.php/2019/03/23362/]the CS:GO blog[/url]:

[quote=Valve][GRAPHICS]
– Added an optional -d3d9ex command line switch to reduce CPU memory use by about 40%. If you encounter graphics problems with this feature, please send an email to CSGOTeamFeedback@valvesoftware.com with the subject “D3D9EX”.

[COMMUNICATION OPTIONS]
– Added communication options in Game Settings which allow the following:
— Mute enemy team
— Block communication from everyone except players you are friends with or players in your matchmaking party
— Hide avatar images
— Change names of players not on your friends list to something neutral

[MISC]
– Katowice 2019 comes to a close: Champions and Legends have been engraved on the trophies, and the Katowice 2019 graffiti can no longer be applied in game.
– Increased the voting time on official servers before transitioning to the next map.
– Fixed a scoreboard case where a player’s rank icons sometimes didn’t get removed when the player was replaced with a bot.[/quote]

Rumor has it:

- Here is [url=https://i.imgur.com/WG7n9ZP.png]the in-game Champion trophy[/url] as well as [url=https://i.imgur.com/kfcIc8J.png]the Quarter-/Semi-/Finalist trophy[/url] with some new names as well as some familiar names
- There are a couple of cosmetic issues however, the first one being that the IEM Katowice 2019 ring is partially cut off due to a vtf spacing error. The second issue is that all in-game major trophies' descriptions now obscure the Katowice 2019 ring
- One small unmentioned fix about the in-game Quarterfinalist/Semifinalist/Finalist and Champion trophies did happen, when inspecting them, you can now spin them around all the way (previously immediately after the switch from legacy Scaleform to Panorama, you could only spin it 30 degrees either way)

- Though your IEM Katowice 2019 graffiti can no longer be used, you can still buy stickers and capsules...at least for now. The next time the GC is restarted however, that probably won't be the case anymore, so consider this your very last chance to stock up on some dirt cheap stickers

- Other than the above things in the notes, there's also some localization file updates which are made possible in part by contributions from [url=https://translation.steampowered.com]Translators Like You - Thank You[/url]: https://github.com/SteamDatabase/GameTracking-CSGO/commit/c513c7dee12349d4f38f0686133dabe89482ce50

- Not necessarily directly related to this update, but remember when Danger Zone was released that Valve appeared to be using Google's Cloud Platform to host some Steam Datagram system infrastructure in Helsinki and Sao Paulo? [url=https://github.com/SteamDatabase/SteamTracking/commit/ec7abb6951d50d7c652737a2d509ffa163981908]Recent Steam Datagram system configuration changes[/url] (which have also been locally synced) indicate that Valve has given up on that project at least for right now

- Size is ~25 MB