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I don't have a MAC, but I believe @VolvoGirl uses a MAC, as does @macuser_22 and they may be more familiar backwards compatibility. Can something like the TTX 2018 software, be successfully installed and used on the most current MAC OS or not. Like, does something as recent as TTX 2018, run on OSX 12.0.1 ?
....we have yet to see what happens with Windows 11 and whether there are issues with it's backwards compatibility....but my current W10 system still has an operational 2013 software set from when I first installed it on this computer.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
