https://wccftech.com/new-xbox-pubg-update-3-joker/

Developer Bluehole is currently rolling out 1.0 Xbox PUBG Update 3 which adds the new supply system, official Joker and Harley Quinn skins, custom matches, and more.

Alongside the implementation of the new patch, the PUBG Xbox development is conducting maintenance on the game’s servers, which are expected to be back up around 11:00AM CET/2:00 AM PST.