How to upgrade my macOS 10.9.5 Mac Pro?
How to upgrade my os x 10.9.5
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Mac Pro
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Back up your data, check your applications for compatibility, click here, and depending on which Mac Pro model you have, then on the download link for El Capitan, High Sierra, Mojave, Catalina, Big Sur, or Monterey. If you get a Mac App Store preview page, change the https at the beginning of its address to macappstore.
Catalina and newer won't run 32-bit software; download and use Go64 to scan for it. To look other programs up, click here.
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