neowin[.]net/news/microsoft-releases-windows-10-builds-19042630-183631198---heres-whats-new
This Win10 update has a potential issue that *probably* won't effect anyone here.
System and user certificates might be lost when updating a device from Windows 10, version 1809 or later to a later version of Windows 10. Devices will only be impacted if they have already installed any Latest cumulative update (LCU) released September 16, 2020 or later and then proceed to update to a later version of Windows 10 from media or an installation source which does not have an LCU released October 13, 2020 or later integrated. This primarily happens when managed devices are updated using outdated bundles or media through an update management tool such as Windows Server Update Services (WSUS) or Microsoft Endpoint Configuration Manager. This might also happen when using outdated physical media or ISO images that do not have the latest updates integrated.
On an interesting note, after performing the 11/10 cumulative update on a copy of Win10 20H1/2004, clicked the button to check for updates, & the update to v. 20H2 was offered. Clicked to download & install, and unlike previous updates to 20H2, the process was Super quick -- in fact I thought it hadn't worked it was so fast, but after a restart it had indeed upgraded to 20H2. Apparently all the important bits were included with the normal cumulative updates, and this one just turned everything on.