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Versions: 00

Network Working Group                                      M. Nottingham
Internet-Draft                                          October 23, 2001
Expires: April 23, 2002


                   The application/rss+xml Media Type
                   draft-nottingham-rss-media-type-00

Status of this Memo

   This document is an Internet-Draft and is in full conformance with
   all provisions of Section 10 of RFC2026.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
   other groups may also distribute working documents as Internet-
   Drafts.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt.

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html.

   This Internet-Draft will expire on April 23, 2002.

Copyright Notice

   Copyright (C) The Internet Society (2001).  All Rights Reserved.

Abstract

   This document specifies the Media Type for the RSS format.  RSS
   allows lists of information to be exchanged in an XML-based format.













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1. Introduction

   RSS is a lightweight, multipurpose, extensible metadata description
   and syndication format.  RSS is an XML application.

   RSS is currently used for a number of applications, including news
   and other headline syndication, weblog syndication, and the
   propogation of software update lists.  It is generally used for any
   situation when a machine-readable list of textual items and/or
   metadata about them needs to be distributed.

   There are a number of revisions [2][3][4][5] of the RSS format
   defined, many of which are actively used.  This memo defines a media
   type, application/rss+xml for all versions of RSS.

2. Registration Information

   To: ietf-types@iana.org

   Subject: Registration of MIME media type application/rss+xml

   MIME media type name: application

   MIME subtype name: rss+xml

   Required parameters: none

   Optional parameters:

      charset

      Same as charset parameter of application/xml as specified in
      RFC3023 [1].

      revision

      The optional revision parameter indicates the version of RSS used;
      the value is specified by the target RSS version.  In practice,
      this value should be an XML Namespace [6], if defined (e.g.,
      'http://purl.org/rss/1.0/' for RSS 1.0), or a revision number if
      not (e.g., "0.92" for RSS 0.92).

   Encoding considerations:

      Same as encoding considerations of application/xml as specified in
      RFC3023 [1].

   Security considerations:



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      The security considerations outlined in RFC3023 [1] apply.

   Published specification(s):

      RSS 0.9 [2]

      RSS 0.91 [3]

      RSS 0.92 [4]

      RSS 1.0 [5]

   Applications which use this media type:

      RSS editors, producers and aggregators.


2.1 Additional information:

   Magic number(s):

      There is no single initial byte sequence that is always present in
      RSS files.  See RFC3023 [1] for information about the
      identification of XML media types.

   File extension(s): .rss

   Macintosh File Type Code(s): "TEXT"

   Person & email address to contact for further information:

      The author of this memo.

   Intended usage: COMMON

   Author/Change controller(s):

   RSS 0.9 was a product of Netscape Communications, and was authored
   by:

      Dan Libby

   RSS 0.91 was a product of Netscape Communications, and was authored
   by:

      Dan Libby

   RSS 0.92 is a product of UserLand Software, and is authored by:



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      Dave Winer

   RSS 1.0 is a product of an ad-hoc working group, rss-dev[7], and was
   authored by:

      Gabe Beged-Dov

      Dan Brickley

      Rael Dornfest

      Ian Davis

      Leigh Dodds

      Jonathan Eisenzopf

      R.V.  Guha

      Ken MacLeod

      Eric Miller

      Aaron Swartz

      Eric van der Vlist

References

   [1]  Murata, M., St. Laurent, S. and D. Kohn, "XML Media Types", RFC
        3023, January 2001.

   [2]  Libby, D., "RDF Site Summary (RSS) 0.9", May 2001,
        <http://my.netscape.com/publish/formats/rss-0.9.dtd>.

   [3]  Libby, D., "RSS 0.91 Spec, revision 3", July 1999,
        <http://my.netscape.com/publish/formats/rss-spec-0.91.html>.

   [4]  Winer, D., "RSS 0.92", December 2000,
        <http://backend.userland.com/rss092>.

   [5]  Beged-Dov, G., Brickley, D., Dornfest, R., Davis, I., Dodds, L.,
        Eisenzopf, J., Guha, R., MacLeod, K., Miller, E., Swartz, A. and
        E. van der Vlist, "RDF Site Summary (RSS) 1.0", May 2001,
        <http://purl.org/rss/1.0/spec>.

   [6]  Bray, T., Hollander, D. and A. Layman, "Namespaces in XML",
        January 1999, <http://www.w3.org/TR/REC-xml-names>.



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   [7]  <http://www.yahoogroups.com/group/rss-dev/>
Author's Address

   Mark Nottingham
   Burlingame, CA  94010
   US

   EMail: mnot-rss@mnot.net
   URI:   http://www.mnot.net/










































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Full Copyright Statement

   Copyright (C) The Internet Society (2001).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
   copyrights defined in the Internet Standards process must be
   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
   revoked by the Internet Society or its successors or assigns.

   This document and the information contained herein is provided on an
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Acknowledgement

   Funding for the RFC Editor function is currently provided by the
   Internet Society.



















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