Microsoft announced today that it will discontinue support for Windows Server Update Services called (WSUS) 3.0 Service Pack.

Windows Server Update Services (WSUS) 3.0 Service Pack 2 (SP2) will no longer synchronize and download updates after October 31, 2021. You can read more about this step taken by Microsoft on this page.

Source: Techcommunity.Microsoft

For guidance, seeĀ Deploy Windows Server Update Services.