Created by Claude - please verify

OS version spread - Windows dates come from a table in ClaudeWindowsLifecycle.cs; check it when Microsoft ships a new release.

Required Microsoft Graph permissions

DeviceManagementManagedDevices.Read.All — application permission, granted to the app registration with admin consent.

Licence: Microsoft Intune.

Endpoint: GET /v1.0/deviceManagement/managedDevices

Intune does not report the Windows edition, so both the Pro/Business and the Enterprise/Education end dates are shown. Apple publishes no end dates, so iOS and macOS are judged against the newest version in your own fleet.

If a permission is missing, this report shows a red load error with the Graph status code — not an empty table.

OS Version Spread & End-of-Support Exposure

How many managed devices run an operating system that no longer receives security updates, or will stop within six months. Windows dates follow Microsoft's release information; Android is judged by the age of its security patch.

Intune returned no managed devices. Please contact support if this is not the expected result.