Software is never finished. Apple underscored that point yesterday with the release of a string of Mac app updates. Whereas Safari 6.0.2 is all about security, the headline feature iPhoto and Aperture patches is Photo Stream with tweaks to dragging and email. Need more information? Step inside.

As of this writing, Apple hadn’t yet posted direct links for either the release notes or security content, but Safari 6.0.2 (Mac App Store) is nonetheless available via Software Update and the Mac App Store. The accompanying one-line description only lists security updates.

iPhoto 9.4.2 (download, Mac App Store) has arrived with a full complement of links, and includes the following feature tweaks and fixes:

— Photos now can be added to shared streams or My Photo Stream by dragging them to “Photo Stream” in the source list
— Multiple email address can now be copied and pasted in the “Shared with” field for shared streams
— When more than five subscribers “Like” a photo in a shared stream, their names are now display correctly
— Contextual menu now includes an Import command to import all the photos contained in a shared photo stream
— Addresses the reliability of Shared Photo Streams when switching between iPhoto and Aperture with the same Library
— Fixes an issue that could prevent Microsoft Outlook from being used to email photos from within iPhoto
— Updated national holidays are available for use in printed photo calendars
— Includes stability improvements

Aperture 3.4.2 (download, Mac App Store) delivers many of the same enhancements found in iPhoto 9.4.2:

— Photos received via My Photo Stream or shared streams can now be added directly to other shared streams
— Multiple email addresses can now be copied and pasted in the “Shared with” field for shared streams
— When more than five subscribers “Like” a photo in a shared stream, all their names are now displayed correctly
— The Info panel for a shared stream now includes an Unsubscribe button
— The status line in the toolstrip now displays the number of new photos added to a shared stream
— Click through for the full list of changes.

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— Mac Music Apps: Songbird, Clementine updates ship
— Mac app updates: TextSoap, Configurator, Dropbox updates available
— Mac Browsers: Firefox, TenFourFox, AuroraFox, SeaMonkey updates