[keycloak-user] difference between the x509 Client Certificate authentication and X509 Client Authenticator

Hello Everyone, I'm wondering about the difference between the newly released featureX509 Client Authenticator in the 4.3 version and the x509 Client *Certificate* Authentication that has been released for a while. I know that the x509 Client *Certificate* Authentication when enabled will allow user to authenticate upon a client certificate. They will then don't need to give a login/password. But I don't see the x509 Client Authentication description somewhere. Any input? Regards,