'I don't know your problem as I don't run Apple any longer. One reason for your problem could be that Canon refused to pay 30% or their revenue to Apple so Apple decided to cancel support for any canon software. This thinking is what almost killed IBM about 20 years ago. Apple wants to sell their tools and softwares instead of supporting others, and so far they have been successful. We'll see if they last.'
Things like this are rarely tech issues but commercial, I've been in the IT business 17 years and have encountered a few. It's always about money and Apple have proven to be a very aggressive predator the last few years. Anyone tried to download Firefox to an ipad?
Perhaps then, with your vast amount of IT experience, you can explain to us how a piece of Canon software, written and distributed by Canon, that is incompatible with the current MacOS is somehow Apple's fault. I've had an AppleSeed version of 10.8 for 2+ months, no doubt Canon has had it longer. When 10.7 came out, the then-current EOS Utility was incompatible, and it was months before Canon updated it (or even had a 10.7 option on the Choose Your OS drop down menu. Maybe Canon put one there, but Apple hacked their website and removed it?
Please, explain how this is Apple's fault...
Neuro, without a doubt you are superior to me when it comes to technical issues, especially around photography. I don't claim to know know in detail why this wouldn't work. But you give a clue in your statement yourself and that is when you write that Canon would have had access to Apple software months before it was launched. Canon wouldn't lack time to get it to work, normally that would be up to the O/S vendor to provide support for the specific software, in this case Apple maybe didn't which wouldn't be the first time. Normally they do this because they want to sell their own software instead. Apple scrapped support for Adobe Flash as they wanted to win this market with their own solution, they don't support Firefox for ipad other than in a crippled version as they have the inferior Safari software etc etc. Without trying to be presumptuous, I don't know your insight into software development in relation to business strategies, but this is not unusual and some companies are worse than others
I do apologize that I don't have vast experience of Canon software as I am fairly new to photography (at least in more enthusiastic terms). But tricks in IT I do have seen enough of. Maybe this one is due to laziness/incompetence within the Canon software development department, maybe not.
Please let me add that I do enjoy reading your posts here and learn a lot from them. I send this response with utmost respect for you and your knowledge.