Windows 10 build 20159
| Build of Iron | |
 | |
| OS family | Windows 10 (NT 10.0) |
|---|---|
| Version number | 10.0 |
| Build number | 20159 |
| Build revision | 1000 |
| Build lab | rs_onecore_dep |
| Compiled on | 2020-06-25 |
Windows 10 build 20159 is a build of Iron, the 21H1 development semester of Windows as a service. A comment related to this build was posted to GitHub by a Microsoft employee on 29 June 2020.[1] A screenshot of Windows Terminal running in this build was later posted to GitHub by another Microsoft employee on 30 June 2020.[2]