CRL Push over S/Mime

Part Two describes CRL distribution via LDAP and FTP, and also OCSP,
presumably over HTTP. There is no description of S/Mime as a protocol
for the distribution of CRL's.

If I understood some prior information published to this list by
Netscape, Communicator 4 is most effectively able to respond to CRL's
received via S/Mime, and can even handle the expiration time specified
for a CRL.

Is an enhancement to Part Two to describe CRL distribution over S/Mime
in the offing?

-Dwight