How do I update the OS in my iMac?

How do I update the OS in my iMac? I have High Sierra

iMac 21.5″, macOS 10.13

Posted on Nov 24, 2021 5:52 AM

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Posted on Nov 24, 2021 5:53 AM

How to get old versions of macOS - Apple Support

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How do I update the OS in my iMac?

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