Multiple editions of Windows 10 versions 1803, 1809, and 1909 have reached their End of Service (EOS) on this month’s Patch Tuesday. Devices running Windows 10 editions that have reached EoS will no longer receive technical support nor monthly bug and security fixes. Microsoft also automatically rolls out feature updates to some out-of-date devices reaching EoS. Windows 10 LTSC editions still under support include: Home, Pro, Pro Education, Pro for Workstations and Pro for Education; and Windows Server, version 1909 editions.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-windows-10-1809-and-1909-have-reached-end-of-service/