https://www.polygon.com/2018/11/10/18080122/xbox-one-mouse-keyboard-kbm-fortnite-warframe

Microsoft will add mouse and keyboard support to the Xbox One next week, the company announced during a livestream from its X018 event. In a surprising twist, Fortnite will be one of the first games to take advantage of the new feature.

This update has been discussed for years, but the feature was given a concrete launch window back in September of this year, when Microsoft claimed that Warframe would be playable with a mouse and keyboard in October. The free-to-play first-person shooter will still be among the earliest games to enable this control option.