RSS Auto-Discovery
The theme injects an RSS auto-discovery tag into the <head> of every page:
<link rel="alternate" type="application/rss+xml" title="..." href="https://example.com/feed.xml">
Browsers and RSS readers use this to auto-discover the site's feed, so readers can subscribe without manually entering the feed URL. The URL is taken from recent_updates.rss_url in the Recent Updates config; if recent_updates is not configured, this tag is not injected (no side effects).
tip
Recommended: generate RSS on your Hexo blog via hexo-generator-feed, and point recent_updates.rss_url to the same URL — that way "Recent Updates cards" and "RSS auto-discovery" share one feed.