Re: Conflicting Enhanced Status Codes between RFC 4468 and draft-siembor

At 01:52 -0400 on 04/10/2007, Tony Hansen wrote about Re: Conflicting 
Enhanced Status Codes between RFC 4468 and :
>  X.7.12 A password transition is needed  This response to the AUTH
>          command indicates that the user needs to transition to the
>          selected authentication mechanism.  This is typically done by
>          authenticating once using the [PLAIN] authentication mechanism.
>          The selected mechanism SHOULD then work for authentications in
>          subsequent sessions.
You reference [PLAIN] but do not list it in Section 5.1 or 5.2. I'd 
assume that it should be there for completeness purposes.