(RFC 3923 published October 2004, subtype last updated October 2004)

MIME media type name: application
MIME subtype name: xmpp+xml
Required parameters: (none)
Optional parameters: (charset) Same as charset parameter of
   application/xml as specified in RFC 3023; per Section 11.5 of
   [XMPP-CORE], the charset must be UTF-8.
Encoding considerations: Same as encoding considerations of
   application/xml as specified in RFC 3023; per Section 11.5 of
   [XMPP-CORE], the encoding must be UTF-8.
Security considerations: All of the security considerations specified
   in RFC 3023 and [XMPP-CORE] apply to this XML media type.  Refer
   to Section 11 of RFC 3923.
Interoperability considerations: (none)
Specification: RFC 3923
Applications which use this media type: XMPP-compliant instant
   messaging and presence systems.
Additional information: (none)
Person and email address to contact for further information: IESG,
   <iesg&ietf.org>
Intended usage: COMMON
Author/Change controller: IETF, XMPP Working Group