This update extends RAW image format compatibility to Aperture 3 and iPhoto ’09 for the following cameras:

Canon EOS Rebel T2i / 550D / Kiss X4
Leica S2
Olympus E-450
Olympus E-600
Olympus E-620
Sony Alpha DSLR-A230
Sony Alpha DSLR-A330
Sony Alpha DSLR-A380
Sony Alpha DSLR-A450

It also addresses RAW processing issues for the following cameras:

Canon EOS 30D
Pentax K-x
Pentax K-7

Visit the Apple website for more [...]