Windows 11, version 21H2

The original version of Windows 11 (also retroactively named version 21H2 and codenamed "Sun Valley") was released in October 2021.[1][2] It carries the build number 10.0.22000.[3] It was retroactively named "version 21H2" by Microsoft per its naming conventions that are labeled "YYHX", with YY representing the two-digit year and X representing the half-year of planned release (for example, version 21H2 refers to builds which initially released in the second half of 2021).[4]

  1. ^ "Windows 11: A new era for the PC begins today". Windows Experience Blog. October 4, 2021. Archived from the original on October 4, 2021. Retrieved October 4, 2021.
  2. ^ "How to get Windows 11". Windows Experience Blog. October 4, 2021. Archived from the original on October 4, 2021. Retrieved October 5, 2021.
  3. ^ "Announcing the first Insider Preview for Windows 11". Windows Insider Blog. June 28, 2021. Archived from the original on June 29, 2021. Retrieved July 16, 2021.
  4. ^ mestew (December 31, 2017). "What's new in Windows 10, version 20H2 - What's new in Windows". learn.microsoft.com. Retrieved May 31, 2024.