RSS in forms allows users with an RSS aggregator program to be notified of new forum discussions in a similar manner to the emails sent as a result of forum subscriptions.
When RSS is enabled, two new properties in forum module setup appear.
This turns RSS on or off for this forum. When set to “None,” RSS is disabled. When set to “Discussions,” the RSS feed will send out new discussions to subscribers. When set to “Posts,” the RSS feed will send out any new posts to subscribers.
Number of RSS recent articles
This number sets the number of articles that go out via RSS. If this number is set to 5, then the 5 most recent articles will be sent to subscribers. As new posts (or discussions) get added, the oldest post/discussion gets replaced on the RSS feed. If your forum gets a lot of posts every day, you will want to set this number high.
From version 1.6 onwards posting audio or video files to a forum will automatically turn the relevant RSS feed into a podcast.