Migrating native ios/android apps to expo/eas

I am migrating a native ios/android app to expo and eas and I am not sure how to handle the app credentials/signing (Distribution Certificate, Provisioning Profiles, etc) for the new expo app.
Can I use new app credentials (and let expo/eas generate them), if I use new credentials will users be able to update their app ?

You’ll need to keep the signing cert.

Try eas credentials