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The reason for this is rather simple. RSS has a long history of switching both programming languages from RDF to XML and back to RDF and now back again to XML. In today's article I'm going to talk a little bit about RSS in it's current version 2.0 format. Welcome back to our short series on RSS Submission and Syndication for the beginner.

This time RSS had 3 main modules to work from to help facilitate the needs the developers were otherwise looking for. RSS went back to the RDF framework that it had previously used in version 0.90, later in version 1.0. XML was later switched to because it allowed the developer to make and use his or her own tags to facilitate the growing demands on the part of developers. RDF became the limiting factor in RSS development, because of that. But you can only use tags that are pre-programmed by the original language developer, it's basic and direct. RSS was initially developed under the RDF format which is a lot like HTML.

They were: This time in Version 2.0 RSS had 3 unique tags.

This was really important for blogging since some blogs are not updated for extended period of time while others are update constantly. A Tag for the publication Date.

A "guid" or Global Unique Identifier was now included in RSS 2.0 The "guid" allowed RSS readers to redisplay items if their name or other information relating to the changes.

These namespaces allow developers to add extended features to the RSS feeds including things like formatting options. A namespace is an XML feature that allows the user to refer to a URL that specifies the standards that you want to use. Version 2.0 also supported namespaces.

So now you know more about where RSS 2.0 came from and how it got there.