Are there RSS feeds available?

Yes, on public wikis every page has an RSS feed, and there is also a global feed for the wiki.

To get the feed, click on the "Share" menu on the right-hand side of the screen, and select either :

For security reasons private wikis don't have RSS feeds, but you can use the "Email alerts" functionality (also under the "Share" menu) to automatically receive an email when a change is done on the wiki.