Upgrade toMac OS 10.10
I'm using an older Mac Pro with Mac OS 10.9.5 and any malware protection software seems to require Mac OS 10.10 or later.
MacBook Pro
I'm using an older Mac Pro with Mac OS 10.9.5 and any malware protection software seems to require Mac OS 10.10 or later.
MacBook Pro
You generally don't need it unless you're concerned about Windows malware or have accidentally installed Mac malware. If you'd like to upgrade anyway, back up your data, check your applications for compatibility, and depending on which MacBook Pro model you have, download El Capitan, High Sierra, Catalina, or Big Sur.
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Upgrade toMac OS 10.10