I wonder what incentive AJA would need to throw us a bone on this one little driver.
I've dutifully stayed down on Yosemite because I still have scores of analog tapes to push through my ioHD. Meanwhile, Apple have started trying to sneak High Sierra (and now Mojave) onto my computer by quietly including it in 'Update All' when notifications of software updates come.
My Apple menu now permanently contains a '1 update' notice that I shan't be attending.
Then, last week, my iPhone got an update and now refuses to speak to Yosemite. I use a third-party app now for that activity.
All credit to AJA for building a cracking piece of hardware. Yosemite may seem like the Upper Cretaceous to the body clock of a desktop app developer but surely it's the durable gear that's in the right?