Microsoft is currently presenting Windows 10, and they unveiled that it will be a free upgrade for Windows 7 and Windows 8 users (and for Windows Phone 8.1 users).
Beyond this, Myerson shared Microsoft’s vision for Windows as a service, not just an operating system. A big part of that is Microsoft’s new commitment to keep devices consistently updated throughout the “supported lifetime for the device.” It sounds like that means those upgrading from Microsoft’s older versions of Windows will consistently receive updates to keep it as up-to-date as possible. Myerson noted that this will let developer “target every single Windows device” when they build apps – anything that makes it easier for developers to reach more users will certainly be appreciated by both the developer community as well as end users.
Sounds good to me. The idea of big, monolithic releases is archaic.