In the history of podcasting, there have been a few Namespaces added to RSS to make podcasting work.  Apple added the namespace, Google added the namespace and even Blubrry added the namespace.  Now there is a new one done by independent podcasters, app developers, companies and other interested people called the namespace.   It's done by the Podcast Index people at  https://podcastindex.org.  

I explain what a namespace is and go over the new tags being added by the "podcast" namespace.