Same here. Tried to connect an old Midiman Midi interface to a recent MacOs. Oh boy. Someone built a driver and I´m grateful for that but it was quite something to get the thing working. It seemed to me a waste to buy a new piece of hardware for some antique technology like Midi, just because the driver of the old interface was not working any more. I don´t mind dealing with pain caused by computers in my day job. But in my free time as a musician all those technological hassles are a hindrance of creativity.