Apple has updated iPhoto to version 9.4.2, adding several improvements to how Photo works with iCloud’s Photo Stream feature. You can now add photos to either My Photo Stream or a shared stream by dragging them to Photo Stream in the source list, and you can add all photos contained within a shared photo stream to your iPhoto library using a new Import command in the contextual menu. The update also enables you to paste multiple email addresses into the “Shared with” field for shared streams, and it ensures that names are correctly displayed should more than five subscribers “like” a photo in a shared stream. Additionally, iPhoto 9.4.2 improves reliability of shared photo streams when switching to Aperture with the same library, fixes an issue with Microsoft Outlook that prevented it from being used to email photos, and updates national holidays for use in printed photo calendars. ($14.99 new from the Mac App Store, free update through the Mac App Store or Software Update, 758.58 MB direct download via Apple’s support page)