Via [url=https://blog.counter-strike.net/index.php/2019/03/23384/]the CS:GO blog[/url]:

[quote=Valve][MAPS]

Vertigo:
-Gameplay updates to bombsite A
-Updated art
-Enabled bombsite A in Wingman

Blacksite:
-Added commemorative graffiti for Katowice Showmatch

Biome:
Reverted the following January update changes:
-Reopened connector between between A main and A long.
-Reopened mid lower entry.

Abbey:
– Added half body cover on B bombsite
– Moved B long closer to bombsite
– Reworked exit from underpass to B bombsite
– Removed walls from B long entry to bombsite
– Extended B bombsite allowing terrorists to plant the bomb behind crates
– Opened ivy roof on B bombsite allowing grenades being thrown from underpass
– Added glow sticks in gate house for better visibility
– Added small crate on A bombsite to allow CTs to hold barn from behind half body cover
– Removed wooden fences outside A bombsite
– Added visuals for drop from upper CT spawn to sewer
– Added clipping to prevent weapons being thrown outside of CT spawn
– Reworked library
– Fixed clipping in some places[/quote]

Rumor has it:

- Here's the Katowice 2019 Danger Zone Showmatch graffiti, commemorating [url=https://www.hltv.org/team/8068/ago]AGO[/url]'s [url=https://www.hltv.org/player/8327/Furlan]Furlan[/url] and [url=https://www.hltv.org/player/8570/GruBy]GruBy[/url]'s win adjacent to the spot where Furlan won the showmatch on the roofs of Tourist: [img]https://i.imgur.com/gstt5Ay.png[/img]

- The in-game major championship trophies have been fixed, the IEM Katowice 2019 part is no longer cut off at the top, and the inspection view has been moved up a bit so that it's no longer obscured by the description

- Now that they're fixed, [url=https://i.imgur.com/swyJq7q.png]this is the Champion trophy[/url], inscribing Astralis' 3rd major win into CS:GO history. As well, [url=https://i.imgur.com/Kwf0Oac.png]this is the Quarter-/Semi-/Finalist trophy[/url], handed out to teams that qualified for the main event and awarded based on their performance
- Distribution to pro players hasn't happened yet but it should within a short while!

- Sales of IEM Katowice 2019 items are still not done in yet, even after 4 days since the tournament's conclusion and even after graffiti was made unusable [url=https://www.teamfortress.tv/51582/cs-go-update-for-3-7-19-3-8-19-utc-1-36-8-1]in yesterday's update[/url]

- Otherwise, it's purely a maps update: https://github.com/SteamDatabase/GameTracking-CSGO/commit/229d58e1e8fb66a4bdbf0b9dfe7f15f70e41ae88

- Size is close to 150 MB