“Bethesda and Arkane Studios have just given Dishonored fans a reason to return to the two most recent titles. A new update is out for both Dishonored 2 and Dishonored: Death of the Outsider that brings new features to both games as long as you log in with your Bethesda.net account.”
Source: N4G PC Dishonored 2 and Dishonored: Death of the Outsider Updated With New Content