RSS Namespace Extension for the Feed Service | HCL Digital Experience

The RSS namespace extension is used to exchange control information between the feed producer and consumer applications.

To implement this namespace, specify the <rss> element as follows:
<rss version="2.0" xmlns:ibmwcm="http://purl.org/net/ibmfeedsvc/wcm/1.0"
xmlns:ibmfs="http://purl.org/net/ibmfeedsvc/feedsvc/1.0" /> 

The input feeds need to include this namespace only in certain scenarios where control information is going to be passed in the feed itself rather than in the HTTP headers.