Microsoft released the Windows 10 2004 KB4568831 non-security preview cumulative update with fixes for network printing, family safety, and cellular connectivity issues. Users have been complaining about being unable to print to network printers, including ones from HP, Canon, Panasonic, Brother, and Ricoh devices. Microsoft strongly recommends that users first install the latest KB4566785 servicing stack update (SSU) to avoid potential problems while installing today’s cumulative update. The update has fixed no security vulnerabilities.
Source: https://www.bleepingcomputer.com/news/microsoft/windows-10-2004-kb4568831-update-released-with-printing-fixes/