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I just received TT2020 CD, installed the app.

My MacOS is 10.14.6 it will not go to 10.15 (too old)

I am planning to upgrade to new computer next year, but when I ran the installer I received a msg:

Please upgrade your MacOS to min 10.15, this software will run on your computer now but in 2021 it will not run as new OS is required.  This is a major hurdle to spend a thousand bucks just to run TT2020.  I don't have the money to buy it now.  Why Quicken can make it working on previous versions, or Firefox, or many other Apps, BUT NOT TT2020?  Are you guys a subsidy of Apple, forcing people to buy new computers?