Windows 11 build 25121
| Build of Copper | |
 | |
| OS family | Windows 11 (NT 10.0) |
|---|---|
| Version number | 10.0 |
| Build number | 25121 |
| Build revision | 1000 |
| Architecture | AMD64, ARM64 |
Windows 11 build 25121 is a build of Copper, the 23H1 development semester of Windows as a service. The build number was mentioned in an issue posted on the GitHub repository of Visual Studio Code on 18 May 2022.[1] Two images showing Windows Terminal running in this build were later shown in comments under a pull request posted on the GitHub repository of Windows Terminal on 26 May 2022.[2]
Components from the ARM64 version of this build were discovered on the Microsoft Symbol Server on 17 May 2022.