Apple has released version 3.0.1 of Aperture, only recently after the initial 3.0 version was released. This update improves on a number of features in Aperture 3.0, including importing and upgrading libraries from previous versions of Aperture and iPhoto.
If you have waited to upgrade Aperture, you might consider the current version; however, if Aperture is important for your work be sure to fully back up before doing so, or more safely wait on this version as well until community feedback on it clears it of major problems.
Overall, the update addresses the following issues:
- Upgrading libraries from earlier versions of Aperture
- Importing libraries from iPhoto
- Importing photos directly from a camera
- Memory usage when processing heavily-retouched photos
- Face recognition processing
- Adding undetected faces using the Add Missing Face button
- Printing pages containing multiple images
- Printing photos and contact sheets with borders and metadata
- Editing photos using an external editor
- Display of images with Definition and Straighten adjustments applied
- Zooming photos in the Viewer and in the Loupe using keyboard shortcuts
- Accessing Aperture libraries on a network volume Selecting and moving pins on the Places map
- Adding and editing custom locations using the Manage My Places window
- Switching between masters when working with RAW+JPEG pairs.
This updated is 29.41MB and can be downloaded via Software Update, or directly from Apple's support website: http://support.apple.com/kb/DL1006