https://wccftech.com/watch-dogs-legion-title-update-3-20-notes/

Ubisoft is today rolling out Watch Dogs Legion Title Update 3.20 across consoles and Stadia, which includes platform-specific fixes.

The new update is being released in preparation for today’s new Online Mode, which has been delayed on PC. The update weighs in at roughly 10GB on PS4 and 2.3GB on PS5, whereas Xbox Series X|S and Xbox One players are required to download 19GB of data. The new  Legion Online mode will unlock on consoles and Stadia tomorrow, Tuesday, at 7 AM PT, 10 AM ET, 4 PM CET.