Via [url=https://blog.counter-strike.net/index.php/2019/06/24536/]the CS:GO blog[/url]:

[quote=Valve][MISC]
– Fixed semi-transparent material on FBI variant A character.
– Several stability fixes for clients and game servers.[/quote]

Rumor has it:

- Only other thing is a single translated string update for Latin American Spanish: https://github.com/SteamDatabase/GameTracking-CSGO/commit/eb02ce05f4d3001c07e77153cd0345b536423a55

- Size is ~10 MB