Apple has also released Aperture 3.4.2 with a number of improvements to how the professional photo organizer works with iCloud’s Photo Stream feature. Like the recently released iPhoto 9.4.2, the update enables you to paste multiple email addresses into the “Shared with” field for shared streams, ensures that names are correctly displayed should more than five subscribers “like” a photo in a shared stream, and improves reliability of shared photo streams when switching to iPhoto with the same library. Aperture 3.4.2 also enables you to add photos from My Photo Stream or a shared stream to other shared streams, and it improves face detection after importing photos into a library from a shared stream. The toolstrip’s status line now displays the number of new photos added to a shared stream, adjusted photos are published to shared streams with EXIF metadata preserved, and a shared stream’s Info panel now includes an Unsubscribe button.

Beyond Photo Stream-related additions, the update ensures that custom keyboard shortcuts are preserved when upgrading from earlier versions of Aperture, fixes a bug where duplicate detection failed when the Auto-Split Projects option was enabled, addresses an issue where the correct color might not display after applying Auto White Balance and Auto Enhance, and improves stability when working with AVCHD video files (be sure to check the release notes for the full rundown of changes). ($79.99 new from the Mac App Store, free update through the Mac App Store or Software Update, 550.73 MB direct download via Apple’s support page)