Windows Insider - Wikipedia
https://en.wikipedia.org/wiki/Windows_InsiderWindows Insider is an open software testing program by Microsoft that allows users who own a valid license of Windows 11, Windows 10, or Windows Server to register for pre-release builds of the operating system previously only accessible to software developers. Microsoft launched Windows Insider for developers, enterprise testers and the "technically able" to test new developer features on pre-release software and builds to gather low level diagnostics f…