Via [url=https://steamcommunity.com/games/CSGO/announcements/detail/4064004735507957800]the Steam Community[/url]:

[quote=Valve][b][u]STICKERS[/u][/b]
- Fixed a bug where AMD graphics users couldn't move stickers
- Stickers with custom offsets will now render properly when inspecting other items in-game from Steam Community Market and Steam Inventory

[b][u]SMOKE[/u][/b]
- Various bug fixes and tweaks

[b][u]SOUND[/u][/b]
- Fixed a performance bug with certain microphone setups

[b][u]NETWORKING[/u][/b]
- cl_interp can no longer be changed directly. Some players had scripts that were setting this to a large value, leading to very bad rubber-banding. The interpolation amount can be adjusted through the "Buffering to smooth over packet loss" setting instead

[b][u]ANIMATION[/u][/b]
- Fixed a bug with the Kukri knife inspect animation
- Fixed a bug where a player holding an incendiary grenade would sometimes show fire effects at their feet

[b][u]UI[/u][/b]
- [b]Removed XP Overload icon from the kill feed[/b]
- The swap weapon prompt will now show the weapon/finish name rather than the custom name
- Fixed a bug with switching background maps while inspecting gloves

[b][u]MAPS[/u][/b]
[u]Vertigo[/u]:
- Fixed a gap in world geometry at Crane

[b][u]MISC[/u][/b]
- Fixed a bug with keyboard input from non-English keyboard layouts
- Various crash fixes[/quote]

Rumor has it:

- Size is close to 220 MB (with Workshop Tools installed)