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Catalina Workaround

MacOS Catalina does not allow any applications that are not Optimized to run. We found this workaround helpful. Just go into Parallels before updating and create a new virtual machine, just like you would for Windows, but install Mojave. Then you can run Mojave on Catalina, and thereby any old app.
How To Run 32-bit Apps in macOS Catalina


macOS Catalina

This Solution provides compatibility information for Big Business and macOS 10.15 Catalina, available October 7, 2019. (6951)
macOS Catalina (beta)
Catalina Workaround


macOS Catalina (beta)

This Solution provides compatibility information for Big Business and macOS 10.15 Catalina, scheduled for release September 2019.

In an unusual move, Apple released a Public Beta on June 24, 2019. (6918)
Public Beta
How to Downgrade from MacOS Catalina Beta



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