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Should I be creating one for each?
I have read most of the pages here on rss and also all the major rss pages but do not seem to be able to get the answer for above.
That is why I am trying to see if anyone has a hands on experience of benefits of using whichever or more than one.
The .91, .92, .93, and 2.0 versions are maintained by Dave Winer of Userland Software, and are probably the most popular, and generally backward compatible - that is most newsreaders or parsers who read a .91 feed will also parse a 2.0 feed
The 1.0, by the rss-dev working group, is more "RDF", and represents a different philosophy.
I have been similarly confused, and decided that a clean verion of either is acceptable - That is when using the .91, .92 standard it is good to truncate the "description" and keep html tags out of it, if one is looking to keep all syndicators and readers happy, but this is just my take on it.