https://www.gamespot.com/articles/new-overwatch-map-rialto-live-now-on-ptr/1100-6458351/

An update was recently released for the live version of Overwatch that nerfed D.Va and buffed Reaper, among other balance changes. D.Va's damage output has decreased, while Reaper's Death Blosson now reloads his shotguns after it's used. His Wraith Form, meanwhile, now grants a 50% speed bonus (up from 25%), and the ability can now be canceled.