Not a very smart move from Apple to remove Firewire support. Even removing support for 32 bit audio was foolish. And now even TB2 as I´ve read somewhere... Since one must assume all these decisions are made thinking in what way to sell more Mac computers, the result is when - like me anyway - one has invested in hardware (Ive got 3 TC Konnekt48 units connected to a Mac Pro 5.1. I was planning on being a new M3 Mac, either Studio Mac or MacBook Pro. But with no support (even for thunderbolt 2) I hesitate and am actually thinking of going back to PC. I can get my Audio Units working on a PC. Partly because of TC but anyway. The funny thing is I get the units working and even without the "hack" in this thread Open Core patcher gets it working in Sonoma, but ONLY the inputs. Audio out I have to use internal digital out connecting an optical cable from the Mac to one of the Konnekt48:s. This actually works just fine. Until I want more than stereo out off coarse, or if I want to use my outboard gear as inserts. I was hoping this hack would give me the outputs back, but not yet anyway. They did. work in Catalina and that´s the reason I haven't given up yet. I have seen some other people having this audio out problems with other FW interfaces so I´m not alone there. But to buy a M3 I seem to need a TB3 interface and that would mean at least two Apollo 8p´s. That's the price of two Macs more, and I´m note even sure yet they are TB3. Are they? And when will Apple abandon TB3? If I wait for M4 maybe that´s gone too.......?? I heard the PC people are looking to match the M chips so...