http://wccftech.com/gears-war-4-xbox-one-x-update-october/

The upcoming Gears of War 4 Xbox One X update will release by the end of this month, The Coalition has announced.

The game’s developer confirmed this in a post on its website, detailing the upcoming content for Gears 4 this year. As covered earlier, Gears of War 4 will be receiving an Xbox One X update to support full 4K resolution with HDR alongside other enhancements, and this update will be arriving by the end of this month ahead of the release of the Xbox One X on November 7.