Changelog: Tag Feeds
Significant tags now have RSS feeds.
You can now subscribe to posts of a specific tag. The existing "all posts" feed remains, and now there is a feed for every tag that "contains" at least 5 posts. For example:
The tag page (e.g. static-site) links to the feed on the page, as well as sets the feed meta tag — so you can paste the tag page URL or the tag feed URL into your feed reader of choice.