IMO, this is not a problem of RSS but how that particular feed endpoint is implemented (assuming your reader will append entries). Usually, popular news sites (

IMO, this is not a problem of RSS but how that particular feed endpoint is implemented (assuming your reader will append entries). Usually, popular news sites (that provides RSS/Atom) will have e.g., "/rss/all" endpoint to get all the news for that day, and these entries are refreshed a couple of times per day. Also, they will provide "/rss/latest" refreshed every couple of minutes or so, so it's up to your reader to check that endpoint frequently, parse and populate only the newest entries.