Thank you. Very interesting. I had no idea. Like others mentioned, Canon is the only software that I own that isn't working with Yosemite. I am returning to Canon after selling my Nikon gear in favor of the 7Dii. Although I understand, it's just extremely frustrating that I can't process my raw files -even with Canon's software. I just have to add that the Nikon D750 files worked great.
Thanks again for the education. Hopefully, we'll get good news soon - from either Canon or Adobe.