It is no longer necessary to manually configure OAuth credentials when creating a Looker (Google Cloud core) instance...

It is no longer necessary to manually configure OAuth credentials when creating a Looker (Google Cloud core) instance that uses only public secure connections and no custom domain. For these instances, Looker (Google Cloud core) now automatically manages OAuth client and secret information, simplifying the setup process. Manual OAuth configuration is still required for instances that use private connections, hybrid connections, or a custom domain.