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The official link to MacPractice System Requirements is here.

What MacPractice Build can I run?

If you are running OS El Capitan (10.11)

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• You can run MacPractice Build 15.

Can I update my OS?

If you're thinking about updating your macOS, you'll want to check above to ensure that your Server and Client Computers meet the requirements for the newer version. We advise that you contact MacPractice Support so they can advise you further based on your particular needs.

MacPractice Support cannot assist with the act of updating your OS. If you need assistance or support for macOS issues, please contact Apple Support.

How do I update MacPractice?

See this article for a comprehensive guide to Updating.

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