Via [url=https://steamcommunity.com/games/CSGO/announcements/detail/4522268822998171357]the Steam Community[/url]:

[quote=Valve][b][u]GRAPHICS[/u][/b]
- Fixed mixed resolution rendering from erroneously resetting during map changes.
- Fixed a known crash when compiling lighting in Counter-Strike 2 Workshop Tools.
- Fixed detail normal UV scaling.
- Fixed several biplanar mapping bugs, added support for nonuniform scale in biplanar mapping mode.
- Added an option to apply albedo color correction to transmissive foliage textures, and adjusted the foliage shader for more accurate color correction.
- Added a startup warning when the game is launched under low available system memory conditions or with a limited pagefile size. These conditions may cause the game to be unstable or crash.
- Various stability improvements.

[b][u]UI[/u][/b]
- Fixed UI checkboxes behaving inconsistently when depositing or extracting a large number of items into and from Storage Units.
- Fixed a regression with loading animated Steam avatars, the cows are mooooving again.[/quote]

Rumor has it:

- Size is close to 300 MB (with Workshop Tools installed)