Windows 10 represents a significant evolution in the relationship between deploying the Windows OS and licensing the Windows OS. We’ve already seen other major changes to Windows licensing: the introduction of the user-based subscription, the ability to purchase an upgrade license to Windows Enterprise without the need for Software Assurance—and there are more changes to come. One of the most significant changes specific to Windows 10, however, is the way you’ll be consuming updates. Until Windows 10, there’s always been something of a dividing line between security updates and features updates. Security updates are quick and ongoing, while the features updates are rolled into big groupings—and deploying those is usually a heavy lift for IT.