It’s been two years since I’ve posted! My time flies. Aperture 3 has been working fine for me since all my initial trouble due to upping from Ap 2 onto an older computer. Got that all done and now careful to back up and begin new libraries each year (unlike massive Ap 2 library). Now I know Aperture 3 is no more (grrrr!)—but it’s what I’ve got. I tend to buy cameras after they’ve been around a while. Am looking at upgrading to Canon 6D (from 2012, I think). Just realized I’d better check whether the files would work with Aperture 3. Should since I upped to Aperture 3 in 2013, but with my luck…! Please advise. Many thanks!