As everyone will know by now, this will be the last regular update for Windows 10 1809 editions.
This concerns Windows 10, version 1809, all editions Windows Server version 1809 Windows Server 2019, all editions. Users still using Windows 1809 will no longer receive monthly security and quality updates that contain protection from the latest security threats. The reason for this is, Windows 10, version 1809 is at end of service on May 11, 2021.
KB5003171 will therefore be the last security update available for Windows 1809. Microsoft states, it’s advisable to upgrade to a newer version of Windows 10 to avoid security or other issues in the future. Update KB5003171 will up your system build number to 17763.1935.