Windows 11 to be released 5th October 2021
Windows 11 will be released on 5th October, firstly to those machines that were specially built for Windows 11, then to machines that Microsoft thinks will be able to cope with the upgrade.
*The Windows Insider Program is an optional service provided by Microsoft to let users experience the next version of Windows before public release. The program is aimed at early adopters and the "enthusiast" crowd, or people who enjoy beta(*) testing new software. Besides just using the software, Microsoft encourages testers to send feedback on their experiences through a specialized app, which includes ratings and a place to leave notes to the Windows development team.
(*)User testing or customer validation, beta testing aims to ensure that end users are satisfied with a software product before it is made generally available.