Whenever I update an older blog post with new information then it is visible to all readers that visit the site itself. Readers of the RSS feed don't get the update and miss the new information.
I am looking for a way which issues back the post to the RSS-feed as if it was a new post (with an
[Update] put after the post title, preferably). However it should not be a new RSS post whenever I just did a minor change (like correcting a spelling error). It would be ideal if it asks me whether this was a minor change whenever I edit a post. How can I achieve this?