(RFC 5854 published June 2010, subtype last updated June 2010) A Metalink Document, when serialized as XML 1.0, can be identified with the following media type: Type name: application Subtype name: metalink4+xml Required parameters: None. Optional parameters: "charset": This parameter has semantics identical to the charset parameter of the "application/xml" media type as specified in [RFC3023]. Encoding considerations: Identical to those of "application/xml" as described in [RFC3023], Section 3.2. Security considerations: As defined in this specification. In addition, as this media type uses the "+xml" convention, it shares the same security considerations as described in [RFC3023], Section 10. Interoperability considerations: There are no known interoperability issues. Published specification: This specification. Applications that use this media type: File transfer applications. Additional information: Magic number(s): None. File extension: .meta4 Macintosh File Type code: TEXT Person and email address to contact for further information: Anthony Bryan Intended usage: COMMON Restrictions on usage: None. Author: Anthony Bryan Change controller: IESG