Denon HC4500 / Mac / Scratch Live

Hi. I know there’s fewer and fewer folks using this setup never mind the controller itself these days, but here goes. My questions:

1- Are there any known issues with the HC4500 and Max OS X Yosemite? 2- I’m currently running OS X Mountain Lion with the HC4500 and Scratch Live with no problems. I’m looking to upgrade to Yosemite for a couple different reasons (note, Yosemite is the last OS X version to work Scratch Live). Any known issues with this combo?