What's New in Version 9.3

• iPhoto can now open libraries from Aperture 3.3 or later
•  AVCHD video is now supported
• The Description field now automatically expands as needed when entering text
• You can now flag a photo in Magnify (1-up) view by clicking a Flag icon displayed in the upper left corner of the photo
• Keywords and titles are now preserved when exporting files with embedded GPS location data
•  A new Export option allows you to automatically organize exported photos into subfolders by event 

The update is recommended for all users of iPhoto '11.