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Sailorjeff69 Author

Level 1

4 points

Why can't I update my 2013 iMac to Big Sur?

I have a 2013 iMac that works just fine for my needs, but I need to install new software that requires Big Sur 11.0, and I have been unable to update to Big Sur. Why is this?

iMac 21.5″, macOS 10.15

Posted on Oct 6, 2023 10:23 AM

Top-ranking reply

FoxFifth

Level 10

472,227 points

Posted on Oct 6, 2023 10:56 AM

macOS Catalina is the newest compatible upgrade. Big Sur is not possible but Apple doesn't give the reason why. See the following from Identify your iMac model - Apple Support

iMac (21.5-inch, Late 2013)

Model Identifier: iMac14,1

Part Number: ME086xx/A, ME087xx/A

Newest compatible operating system: macOS Catalina

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Why can't I update my 2013 iMac to Big Sur?

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