If my Mac is running macOS Sierra can I update online to macOS Catalina?
If my Mac is running macOS Sierra can I update online to macOS Catalina?
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Back up your data, check your applications for compatibility, and depending on which Mac model you have, download High Sierra, Mojave, or Catalina.
Mojave requires it to be a 2012 or newer Mac model, or a 2010 desktop Mac Pro.
Catalina requires it to be a 2012 or newer Mac model(2013 for desktop Mac Pros).
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