Microsoft commits to 10-year support lifecycle for Windows 10
http://www.zdnet.com/article/microsoft-commits-to-10-year-support-lifecycle-for-windows-10/
With the global launch of Windows 10 less than two weeks away, Microsoft's lawyers and business managers are finishing the pieces of the puzzle that don't involve code.
Earlier this week, Microsoft published its license terms for Windows 10. Today, the company updated its support lifecycle policy for the new OS. In the process, they've cleared up the confusion over a phrase that defines the new Windows 10 servicing model.
Here's the tl;dr:
For Windows 10, Microsoft will continue its traditional 10-year support lifecycle. The five-year mainstream support phase begins with the release of Windows 10 on July 29, 2015, and a second five-year extended support phase begins in 2020 and extends until October 2025. (That's a few months later than July 29, 2025, because of the way Microsoft calculates support dates.)
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