Don't deploy macOS Software Update profile to Big Sur
SimpelMDM shouldn't deploy macOS Software Update profiles to Big Sur. Big Sur has a bug that reads the com.apple.SoftwareUpdate CatalogURL preference when running software updates and causes an NSURL error.
If you're still deploying a software update server for older versions of macOS Big Sur won't be able to receive updates unless you move those Macs to another group without the profile (doesn't scale well) or SimpleMDM implements a fix that doesn't install the profile on Big Sur and removes the profile if it's already installed.
The ideal solution would be https://suggestions.simplemdm.com/forums/204404-suggestions/suggestions/40838419-allow-profile-installation-dependent-on-macos-vers but unless it's going to be implemented very soon I think we need a solution similar to how SimpleMDM doesn't deploy TCC profiles on macOS that doesn't support them.
-bryan
bryan
shared this idea
The CatalogURL key is no longer supported in macOS 11+. As a result, this key will no longer be specified in profiles that are delivered to macOS 11+ devices. The key will also automatically be removed on devices that are upgraded.