Yep, clear case of planned obsolescence by Apple. Disappointing and I ended up biting the bullet and purchased a new Mac; Merry Xmas to me. On the other hand I'm not a technical guy but I'm not sure why Turbotax can't have a version that can still run on the older Mac operating systems. Of course they didn't ask my opinion. On the plus side I purchased the 2024 Turbotax Deluxe package and it downloaded without any problems at all on to my new Mac and transferred last years information without causing me any consternation. Small victories. Good luck.
