Treyarch’s Director of Development, @PCDev, has confirmed that Black Ops 3 will be compatible with the upcoming Windows 10 software.
@perzianboy27 BlackOps3 will be win10 compatible.
— pcdev (@pcdev) June 8, 2015
Microsoft has confirmed that Windows 10 will be available starting July 29th for customers; it includes many new additions, including a new Xbox app.
Treyarch and Activision have not yet confirmed if Black Ops 3 on PC will support the new Xbox app functionality in Windows 10. Windows 10 does allow developers to make titles cross play between PC and Xbox One, and even allows cross-buy functionality for titles. We’ll update when we get more information regarding Black Ops 3 on PC’s support for Windows 10.