https://www.pcgamer.com/pubgs-latest-update-adds-a-new-car-a-new-gun-and-a-heap-of-weapon-balance-changes/

Playerunknown's Battlegrounds update 12 is a "big one," with a new map selection menu, improvements to the Miramar map, a muscular new vehicle called the Mirado, and the usual array of tweaks and bug fixes. There's also a major focus on weapon balance changes, which PUBG Corp said will necessitate a longer wait for this update to go from the test server to live. 

"We’re going to keep the changes on the test server for longer than we normally would,"  the studio said. "We’ll be listening and and making changes based on your feedback before pushing this update to live. So please share your thoughts with us!"