[FerdSlav]

Curious how something such as this is actually implemented. Is there a feed that you are subscribing to? Are you consistently polling posts looking for changes? Or is it some third option?

[dang]

You could ask https://news.ycombinator.com/user?id=petercooper, who wrote it.

I thought it had been submitted more often but I guess it has mostly been mentioned in comments: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...

[soneil]

A lot of title changes are apparent in the RSS feed, the new title appears as a new item with the same URL.

I’m not sure how you’d disambiguate merges that way, as they have the same symptom, but the process isn’t invisible.

[YXNjaGVyZWdlbgo]

There is an API link in the footer of the page.