ASAuthorizationProviderAuthorizationOperation unavailable on xcode 12 GM but available on Betas?

We have a running iOS application with a working implementation of Apple Sign In that we are trying to make it work with Mac Catalyst. We had no issues while developing with Xcode 12 Betas, but now that the stable Xcode 12 GM is out, we are getting the following error when trying
to build our app:


'ASAuthorizationProviderAuthorizationOperation' is unavailable: not available on macCatalyst"

In theory it should be available as shown on the docs: https://developer.apple.com/documentation/authenticationservices/asauthorizationproviderauthorizationoperation?language=objc

Not sure if that "Beta" on Mac Catalyst 14.0 under Availability means that this will only be available on the betas (seems unlikely). Any ideas on how to approach this issue?
I'm seeing several things that were available in the beta's but no longer in the GM. Wow!
ASAuthorizationProviderAuthorizationOperation unavailable on xcode 12 GM but available on Betas?
 
 
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