In the article, Microsoft confirms says that the “minimum acceptable build for Windows 11, version 22H2 certification” is RTM (Release to Manufacturer) build 22621. This means that the preview released on May 11 contains the final bits that the company plans to ship as the final version, minus some cumulative updates. However, since Windows 11 is offered as a service, the RTM label doesn’t mean much, but it indicates that the development has been finalized, and the company won’t be introducing any more features for this version. Instead, the company will focus on releasing cumulative updates to make version 22H2 stable for the final release during the second half of 2022. If you want to upgrade early, Microsoft is even making available the ISO file for the final version of Windows 11, which still doesn’t have an official marking name. 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.