Via [url=https://steamcommunity.com/games/CSGO/announcements/detail/516350567072662005]the Steam Community[/url]:

[quote=Valve][b][u]GAMEPLAY[/u][/b]
- Adding Retakes as official game mode supporting Defusal Group Alpha and Defusal Group Delta maps on official matchmaking servers.
- Fixed Molotov and Smoke interaction logic in cases when multiple smokes are active in the map.

[b][u]MAPS[/u][/b]
- Updated Golden to the latest version from Steam Community Workshop ([url=https://steamcommunity.com/sharedfiles/filedetails/changelog/3286163323]Update Notes[/url])
- Updated Palacio to the latest version from Steam Community Workshop ([url=https://steamcommunity.com/sharedfiles/filedetails/changelog/3249860053]Update Notes[/url])
- Updated Rooftop to the latest version from Steam Community Workshop ([url=https://steamcommunity.com/sharedfiles/filedetails/changelog/3536622725]Update Notes[/url])

[b]Inferno[/b]
- Adjustments to top of Quad and under Balcony to improve visibility.
- Various optimizations.

[b][u]CONTRACTS[/u][/b]
- Extended functionality of the "Trade Up Contract" to allow exchanging 5 items of Covert quality as follows:
- 5 StatTrak™ Covert items can be exchanged for one StatTrak™ Knife from a collection of one of the items provided
- 5 regular Covert items can be exchanged for one regular Knife item or one regular Gloves item from a collection of one of the items provided

[b][u]MISC[/u][/b]
- Performance optimizations when the game is in the main menu and item inspect UI
- Fixed inventory item icons sometimes rendering in blurry state or not rendering
- Fixed several server-only sound events to not start multiple times
- Stability improvements[/quote]

Rumor has it:

- [s]Before you freak out and start panic-selling:[/s] Knives and gloves obtained through a Trade Up Contract are temporarily [b]not[/b] tradable or listable on the Steam Community Market for one week, [url=https://twitter.com/ThourCS2/status/1981138046784589988?mx=1]per /u/ImThour[/url]

- Size is ~1.3 GB (with Workshop Tools installed)