RSS Advisory Board

Specification History

The history of the Really Simple Syndication specification published by the RSS Advisory Board can be traced through the archives of this site:

1. March 15, 1999: RSS 0.90 (Netscape), published by Netscape and authored by Ramanathan Guha, transferred to the RSS Advisory Board on Jan. 22, 2008
2. July 10, 1999: RSS 0.91 (Netscape), published by Netscape and authored by Dan Libby, transferred to the RSS Advisory Board on Jan. 22, 2008
3. June 9, 2000: RSS 0.91 (UserLand), published by UserLand Software and authored by Dave Winer
4. Dec. 25, 2000: RSS 0.92, UserLand
5. Aug. 19, 2002: RSS 2.0, UserLand
6. July 15, 2003: RSS 2.0 (version 2.0.1), published by the Berkman Klein Center for Internet & Society at Harvard Law School and authored by Dave Winer
7. July 15, 2003: RSS 2.0 (version 2.0.2), published and authored by the RSS Advisory Board
8. July 17, 2003: RSS 2.0 (version 2.0.3), RSS Advisory Board
9. April 6, 2004: RSS 2.0 (version 2.0.4), RSS Advisory Board
10. May 31, 2004: RSS 2.0 (version 2.0.5), RSS Advisory Board
11. June 19, 2004: RSS 2.0 (version 2.0.6), RSS Advisory Board
12. January 25, 2005: RSS 2.0 (version 2.0.7), RSS Advisory Board
13. Aug. 12, 2006: RSS 2.0 (version 2.0.8), RSS Advisory Board
14. June 5, 2007: RSS 2.0 (version 2.0.9), RSS Advisory Board
15. Oct. 15, 2007: RSS 2.0 (version 2.0.10), RSS Advisory Board
16. March 30, 2009 (current): RSS 2.0 (version 2.0.11), RSS Advisory Board

Syndication History

The history of web syndication begins earlier than March 1999 with Channel Definition Format (1997), Meta Content Framework (1997), scriptingNews (1997) and scriptingNews 2.0b1 (1999) formats.

Two other syndication formats also are in wide use today: Atom and RDF Site Summary, a format that shares a common origin with Really Simple Syndication but differs by supporting the Resource Description Framework. Namespaces that work with Really Simple Syndication often work equally well with both Atom and RDF Site Summary.