This brings back memories of the syndication-format wars. And not good ones, either. RSS 0.9x versus RSS 1.0 versus RSS 2.0 versus Atom versus CDF versus whate

This brings back memories of the syndication-format wars. And not good ones, either. RSS 0.9x versus RSS 1.0 versus RSS 2.0 versus Atom versus CDF versus whatever else people came up with, and which formats are relatively self-contained versus which ones had to go borrow elements from other XML namespaces and whether you should "helpfully" supplement your feed (or even your XHTML!) with stuff pulled from Dublin Core, which formats have associated publishing protocols that actually work, the mess of trying to fit arbitrary content formats into feeds and bumping into XML arcana along the way and encouraging people to put autodiscovery links in their sites and... Thankfully, for many years now I've published only an Atom feed, and it works, and that's that. And for reading I use Reeder, with a paid service that tracks my subscriptions and read/unread status, and it seems to just work. That wasn't always the case.