10.0.18309.1000.rs_prerelease.181220-1256
| Major version | 10 |
| Minor version | 0 |
| Build number | 18309 |
| Build revision | 1000 |
| Lab string | rs_prerelease |
| Build time | 2018-12-20 12:56:00 |
| Family | 19H1 [Vanadium] |
| Source type | Public release |
| Source details | <p>https://blogs.windows.com/windowsexperience/2019/01/03/announcing-windows-10-insider-preview-build-18309/</p> |
| Leak or release date | 2019-01-03T00:00:00Z |