For those running macOS Sonoma in virtual machines for testing, I found a workaround to enable beta updates within the guest operating system: https://github.com/insidegui/VirtualBuddy/discussions/194#discussioncomment-6406771
Upgrade to Sonoma Beta 3 within VirtualBuddy? · insidegui/VirtualBuddy · Discussion #194

I can't seem to figure out how to upgrade a working Sonoma install in VirtualBuddy rather than downloading a full restore image and starting from scratch. Am I missing something simple?

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@_inside thank you! Aside from this limitation, VirtualBuddy has been a joy to use. Hopefully Apple doesn’t *fix* it