In addition, Aperture 3.3 supports AVCHD for videos, the Set Photo as Desktop feature (long available in iPhoto and elsewhere), and drag-and-drop functionality for the Faces feature. Facebook, Flickr, and MobileMe albums are now displayed as thumbnails in the main window when those accounts are selected in the source list.

There's also some minor terminology tweaks, a new preference that allows you to set the background brightness of the full screen browser, and a new manual option allows you to drag and drop projects to customize sort order in the Projects view.

The version 3.3 update is recommended for all users of Aperture 3.

Not surprisingly, along with the Aperture update, which references iPhoto, Apple has also updated iPhoto to open libraries from Aperture 3.3 or later (among other things).