If an app won't run or install on your Mac after you upgrade macOS

If an app doesn't work after you upgrade your Mac operating system, check for updates.

If an app isn't working as you expect

After you upgrade macOS, you might find that some third-party apps don't work or act as you expect. An app might not open, run, or install, even if you try to reinstall it. 

You might see this issue if: 

Make sure that you have the latest version

If an app doesn’t work after you upgrade, make sure that you have the latest version:

  1. Check for an updated version of the app that is compatible with your new OS. Apps in the Mac App Store list their compatibility and system requirements on their product pages.
  2. Find out whether the app developer has a new version or plans to release a new version of the app that is compatible with your new OS.

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