Upgrade to Big Sur
When can I upgrade my iMac 2013 to Big Sur
iMac 21.5″, macOS 10.15
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Best reply
Never. It's not compatible. Here are the machines that can install Big Sur:
• MacBook (2015 and later)
• MacBook Air (2013 and later)
• MacBook Pro (late 2013 and later)
• Mac Mini (2014 and later)
• iMac (2014 and later) ⬅︎ ⬅︎ ⬅︎ ⬅︎ ⬅︎
• iMac Pro (2017 and later)
• Mac Pro (2013 and later)