Windows 10, version 21H2—officially known as the —represented a critical stabilization point in the operating system's history. Released on November 16, 2021, the Win10-21h2-english-x64.iso serves as the 64-bit standard installation media for this version, which was designed to maintain productivity and security for users who were not yet ready or able to transition to Windows 11. Core Technical Foundation
The Windows 10 Enterprise LTSC 2021 edition (based on 21H2) has a longer lifecycle, with updates scheduled until January 12, 2027 . What’s Inside the 21H2 Build? Win10-21h2-english-x64.iso Microsoft
There aren't many "new" features. Most of the changes were under the hood, such as WPA3 H2E support for better Wi-Fi security and GPU compute support for the Windows Subsystem for Linux (WSL). 2. Support Status (Important) What’s Inside the 21H2 Build