[paldry]

Thanks Musicman, I can’t find anything definite about the compatibility. I wonder if I upgraded to Mojave would PT 12.3.1 still work? That way I could test to see if the Profire 2626 was still working without the expense of upgrading to PT 2019.5
Given I could revert back to El Capitan if Mojave was incompatible (if that is possible) 😩