This post is from the WWDC26 Virtualization Q&A.
Is there a way to retrieve restore images of previous versions of macOS and additionally checking whether a restore image is valid (i.e. signed) without attempting to install it?
There are currently no APIs to do either of these things. Can you file a request at https://developer.apple.com/feedback-assistant/?
See https://developer.apple.com/forums/thread/712889 for some tips on filing feedback requests!
Thank you!
