Introduced in OS X v10.5, Publication Subscription is a technology that offers developers a way to subscribe to web feeds from their applications. Web feeds are documents that contains frequently updated information. You can use Publication Subscription to allow your applications to subscribe to podcasts, photocasts, and any other feed-based document. Plus, Publication Subscription handles all the feed downloads and updates automatically. This document explains how feeds work and how to use them in your application.

Before reading this document, you should have some experience with Objective-C and be familiar with XML.

Organization of This Document

This book contains the following chapters:

See Also

For an in-depth description of the Publication Subscription framework, read:

For more information about some of the technology areas used by Publication Subscription, refer to:

There are also a number of good websites about the different feed standards supported by Publication Subscription: