10.0.20348.4640.fe_release_svc_prod1.251208-1759
| Major version | 10 |
| Minor version | 0 |
| Build number | 20348 |
| Build revision | 4640 |
| Lab string | fe_release_svc_prod1 |
| Build time | 2025-12-08 17:59:00 |
| Family | 21H2 [Iron] |
| Source type | Public release |
| Source details | Windows Update |