Windows 10 build 19561
| Build of Manganese | |
 | |
| OS family | Windows 10 (NT 10.0) |
|---|---|
| Version number | 10.0 |
| Build number | 19561 |
| Build revision | 1001 |
| Build lab | rs_prerelease |
| Compiled on | 2020-02-04 |
| SKUs | |
| Enterprise | |
Windows 10 build 19561 is a build of Manganese, the 20H2 development semester of Windows as a service. Several mockups featuring a screenshot of this build were posted to GitHub by a Microsoft employee on 12 February 2020.[1]