Main issue I have is systems that don’t keep RSS feeds in sync with actual content, and remembering that editing existing content shouldn’t result in a new RSS

Main issue I have is systems that don’t keep RSS feeds in sync with actual content, and remembering that editing existing content shouldn’t result in a new RSS entry for that edited content. As an example one group I am involved in tried sharing a calendar via RSS but every time they created a new appointment they would copy an old one, update the description, update the headline, then change the invite list and meeting time. Each action resulted in a new record being added to the RSS feed. Cache invalidation is hard, apparently.