Defined getmemberlist room configuration option; added direct invitation protoocol; corrected logic regarding admission of room owner/admin when room is full; defined service discovery extension field for associated LDAP group; specified that room config fields can be listed in extended room information; specified message format for affiliation change notifications if user is not in the room; added example showing use of Result Set Management; recommended inclusion of MUC child element in presence errors; described use of ThreadID for continuity between one-to-one chat and multi-user chat, including definition of thread attribute for continue element in invitations.