Windows 10 Current Release - kbish001/Windows-10-Version-History GitHub Wiki
Welcome to the Windows-10-Version-History wiki!
Windows 10 is the current release of the Microsoft Windows operating system. Unveiled on September 30, 2014, it was released on July 29, 2015.[48] It was distributed without charge to Windows 7 and 8.1 users for one year after release. A number of new features like Cortana, the Microsoft Edge web browser, the ability to view Windows Store apps as a window instead of fullscreen, virtual desktops, revamped core apps, Continuum, and a unified Settings app were all features debuted in Windows 10. Microsoft has announced that Windows 10 will be the last major version of its series of operating systems to be released. Instead, Microsoft will release major updates to the operating system via download or in Windows Update, similar to the way updates are delivered in macOS.[49]
So far, nine major versions of Windows 10 have been released, with the version 19H2 being the latest stable release, and 20H2 as the latest preview version.
Source: Wikipedia; https://en.wikipedia.org/wiki/Microsoft_Windows_version_history#Windows_10_and_Server_2016