Run 32–bit apps in Catalina
Dec 10, 2019
2 minutes
YOU CAN UPGRADE to macOS Catalina even when you still need to run apps which are 32-bit or incompatible with 10.15. If you don’t need to run both versions of macOS at the same time, you can install Catalina into a separate volume or partition, then switch between them using the Startup Disk pane.
Installing an older version of macOS in a
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