On the “Windows release health” website, the company says that it has “started the first phase in [its] rollout for machine learning (ML) training, targeting devices on Windows 10, version 20H2 that are approaching the end of servicing to update automatically to Windows 10, version 21H2.” If you are still on version 20H2, you do not need to wait. You can upgrade immediately through Windows Update. Since these releases share the same core file system, the update only requires a quick restart without the need for complete reinstallation. However, if you use the Update Assistant or Media Creation Tool, a reinstallation will occur. You should only use these options when the device has problems and want to start fresh with a new installation. In this release, you won’t find new features or significant changes. This feature update only introduces fixes and system improvements and removes some previously available features. Windows 10 20H2 end of support will be on May 5, 2022, and once you upgrade to version 21H2, support will be extended until June 13, 2023. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.