App Extensions unsupported?

Hi there, I just updated my pods and it appears things are now broken for my App Extension.

I believe I link to this library via:

pod 'GoogleSignIn'

My app allows people to store their password databases on Google Drive and I provide an App Extension (Credential AutoFill) to allow them to select their passwords inline from within say Safari.

It looks like the library you use AppAuth is not built/designed for use in App Extensions.

This seems to be a change with GoogleSignIn 5.0.0?

Are there any plans to support App Extensions or at least not break when built as an App Extension as before.

Will revert to 4.4.0 for now.

Thanks!
-Mark