Via [url=https://blog.counter-strike.net/index.php/2019/05/24111/]the CS:GO blog[/url]:

[quote=Valve][DANGER ZONE]
– Unlocked Ballistic Shield, Firebombs, and C4 as deployment perks.

[MISC]
– Fixed SVG files to load with consistent dimensions in different resolutions.
– Fixed a minor regression caused by molotov bouncing off sky surfaces.
– Fixed several exploits.

[MAPS]
Train:
– Fixed spot where players could get hung up on train near A main.
– Fixed ladder on train closest to lower B entrance not being shift-walkable.
– Fixed some minor gaps in train cars.

Sirocco:
– Added info_paradrop_denial entities to prevent paradrops from landing on top of the Kasbah towers.
– Fixed wall in Kasbah where bump mines fell through.
– Fixed hole in world at the bottom of the stepwell.
– Covered up a missing texture with roof edge models in the Kasbah.
– Added additional detail to some roof areas.[/quote]

Rumor has it:

- There's lots of localization, [url=https://translation.steampowered.com/]Translators Like You - Thank You[/url], etc etc: https://github.com/SteamDatabase/GameTracking-CSGO/commit/613ec5efed523db241dfd7cba3d6d7be49125082

- Size is ~88 [s]MPH[/s] MB