mnot’s Web log

“Design depends largely on constraints.” — Charles Eames

Feed History -03

Draft -03 of Feed History: Enabling Stateful Syndication is now available. Significant changes include:

Added fh:archive element, to indicate that an entry is an archive
Allow subscription feed to omit fh:stateful if fh:prev is present
Clarified that fh doesn’t add ordering semantics, just allows you to reconstruct state
Cleaned up text, fixed examples, general standards hygiene

See this site’s feed for an example. There’s going to be at least one more draft, as I neglected to acknowledge people who have made suggestions and otherwise helped so far. Sorry!

Also, you might notice that the namespace URI is in purl.org/syndication. I registered this PURL namespace for the benefit of format-neutral syndication extensions; i.e., those that will work equally well in all versions of RSS as well as Atom. There are already a couple of others besides feed history in there; I’d be happy to delegate sub-domains to other extensions that share this goal.

Filed under: Syndication, Web, XML

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