Appcasting
Monday, February 28th, 2005Fraser Speirs, the man behind Xjournal and the FlickrExport plugin for iPhoto, has a page describing Appcasting. I’m not sure how long this concept has been out, the first time I heard about it was today when I saw it on the front page of Ranchero Software today.
Appcasting is a pretty simple idea, but I think it would be great to see it widely adopted. Fraser describes it as a way to deliver application updates through RSS feeds. It works on the same basis as Podcasting, where the url for an audio file is embedded within a RSS feed. When a news aggregator comes across one of these embedded urls, it automatically downloads the audio file to a location specified by the user, who can then listen to the file or load it up on a portable music player.
Appcasting would work the exact same way, except instead of delivering audio files, the feed would deliver binaries of software updates and add-ons. For example, Fraser Speirs offers an Appcast for his FlickrExport iPhoto plugin. Whenever he releases an update, he also posts it to his feed. Anyone who is subscribed to his Appcast will automatically get the update when their aggregator refreshes the feed. Then all that’s needed is for the user to install the package that’s already been downloaded. For anyone with a broadband connection, it looks like an excellent way to make sure their software is up to date without having to check a developer’s site on regular intervals. Of course, this isn’t needed by many apps that have built in update checking, but looks like a great way to deliver the same kind of service for applications without a call-home ability.
Engadget