XML RSS, which stands for eXtensible Markup Language Really Simple Syndication, allows users to subscribe to updates from specific topics or threads. A new feature, indicated by a blue and red button, enables users to easily access XML RSS feeds for real-time notifications of new posts. This technology is commonly used to receive streaming news on various devices, including desktops, PDAs, and cellphones. An XML RSS reader is necessary to utilize this feature effectively. Overall, XML RSS enhances user engagement by providing timely updates on preferred content.