Dave Winer released a new format and specification document today for public comment called OPML 2.0.

It is actually a roll up of a series of RFCs and guidelines that were written by Dave late last year. OPML 2.0 adds new features such as type, ownerID, support for namespaces, documentation for certain nodetypes and other “niceties”.

See his post to get involved in the 60 day public review period.