FeedDemon's support for offline reading isn't something every customer uses, but those that need it absolutely love it. And they're going to love FeedDemon 2.5 even more, because it adds a host of new features aimed at making offline reading even better.
The most obvious addition is the ability to prefetch unread items. This handy feature - which is found under the "File" menu - downloads web pages and images that are linked in your unread items, making them available even when you're not connected.
This is especially nice if you're subscribed to feeds such as Engadget which contain a lot of images. In the past, viewing these feeds offline meant seeing broken red X's where the images were supposed to be, but FeedDemon's prefetching solves this problem. Here's a screenshot which shows how Engadget looks when FeedDemon 2.5 is offline (hint: it looks exactly the same as it does when you're online).
When you're working offline, links which haven't been prefetched have ato let you know they're not available. Clicking a link that has been prefetched shows the offline copy of the linked page.
In addition to these features, there are a number of smaller improvements that add up to make FeedDemon's offline support far better than it was (and it was already pretty good). If your current feed reader won't work without an Internet connection, why not give FeedDemon 2.5 a try?