Windows 10 Mobile build 9879
| Build of Windows 10 Mobile | |
 | |
| OS family | Windows NT |
|---|---|
| Version number | 6.4 |
| Build number | 9879 |
| Build revision | 0 |
| Architecture | ARM32, ARM64 |
| Build lab | fbl_release_kitp1_kitp2 |
| Compiled on | 2014-12-05 |
| About dialog | |
Windows 10 Mobile build 9879 is a build of Windows 10 Mobile, which was uploaded to BetaArchive on 6 January 2020 for both the ARM32 and ARM64 architectures, making it the earliest available ARM64 build of Windows 10 Mobile.