Version 1 and version 2 X509 cerrtificates use only names to identify subscribers and CAs?

Version 1 and Version 2 X.509 certificates primarily use distinguished names (DNs) to identify subscribers and Certificate Authorities (CAs). These DNs typically include attributes such as the common name (CN), organization (O), organizational unit (OU), locality (L), and country (C). While Version 1 certificates focus solely on these names, Version 2 introduces the option for additional extensions, but still relies on names for primary identification. Thus, both versions emphasize name-based identification without incorporating more complex identifiers.