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I have a Mac OS Sierra.

I have a 2011 Mac macOS Sierra 10.12.6. Can I update it any more? Please send me an Update if possible or what do I need to do? thank you!

iMac 21.5″, macOS 10.12

Posted on Jan 28, 2023 8:57 AM

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FoxFifth

Level 10

472,203 points

Posted on Jan 28, 2023 9:52 AM

You can upgrade it to High Sierra but not beyond that. See the following from Identify your iMac model - Apple Support

iMac (21.5-inch, Mid 2011)

Model Identifier: iMac12,1

Part Number: MC309xx/A, MC812xx/A

Latest compatible operating system: macOS High Sierra 10.13.6

See instructions in: How to download macOS - Apple Support

You should also use the current version of a 3rd party browser such as Chrome or Firefox since you will not be able to use the current version of Safari with High Sierra.

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I have a Mac OS Sierra.

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