When I purchased Aperture 3 (or 1 or 2 for that matter), I bought it because Apple sells it as a workflow solution. When I bought Aperture 3, it worked with 10.6. And as I illustrated, I had a historical expectation that it would work with Raw files from current cameras. Both the OS and the App where current when I bought it. As a matter of fact, I went through all of these hoops upgrading from my G5 machine and Aperture 2... but I had all of this information up front. In any case, I still own the current version of Aperture. However, I cannot use it with the Raw files of a current camera (in my case the D600 in the OP's case the Canon 5DMIII) without signficant cost both in dollars and downtime while I upgrade everything that now needs to be upgraded becasue now I need to update the OS. I was ambushed. Apple has never done this before. No other software vendor has ever done this before. If Apple wants to update Aperture to make use of the new features in it's newest operating system, more power to them. Go for it. I then know beforehand what the consetquences of me purchasing new equipment will be. And again, I went through all of that just over a year ago (June 2011) when I started my transition to Intel Macs. But again, I knew A3 wouldn't work on a G5 system. My choice was to update of find other solutions, fair enough. This is like having a G5 and Aperture 2 only now there is a 2.1 udpate that will work with the "newest" cameras only you need to upgrade to Intel. It_isn't_right no matter how you slice it. And this policy sets a precedent. As you say, Apple has no concern over me or my opinion whatsoever. So if I, as a consumer, allow them to just walk all over me, then all other companies will follow suite. Do you have CS6 running on 10.8... well the incremental update for ACR only runs on 10.9. In other words, it won't be long and we will be paying software vendors not for new versions, but for simple udpates. Heck, that is a model Adobe would just love. But not even Microsoft is that brazen. But wait, if no one bothers to speak up, lets just start charging for any 'ole update. Let's throw in Adobe's model and not only make you pay for each incremental update but charge you more if you try so skip an update! We don't care if you need it.