Windows 10

Windows 10 is a series of Microsoft Windows operating systems, initially released in July 2015 after being announced in September 2014. It will be succeeded in the second half of 2021 by Windows 11.

Windows as a service
With Windows 10, Microsoft introduced a new release model called "Windows as a service". Instead of releasing a major version of Windows every few years, the company instead vowed to release smaller updates to Windows 10 multiple times a year. These updates, labeled feature updates to differentiate them from regular bugfixes, are major updates to the operating system that add new features to the operating system. Usually, they are a new build of the operating system released after one or more development cycles. However, on multiple occasions, a limited set of new features has been released as a cumulative update and labeled as a new Windows 10 feature update. They are released twice in a year, with the first feature update being released in spring and the other in autumn.