EAP-SIM compliancy

Hi all, I have a question regarding EAP-SIM authentication, in the case where authentication is performed by an external AAA system. We already perform LEAP and EAP-TLS authentication against an external AAA system authentication through FreeRADIUS (FreeRADIUS acts as a proxy for EAP authentication). Regarding EAP-SIM, is FreeRADIUS compliant with the latest EAP-SIM version that became a RFC (RFC 4186), in the case where authentication is performed by an external AAA system? Thank you for you answers Geof.