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I have an iMac 21.5 inch, late 2013, running High Sierra 10.13.6 (I know, I know). I think it's not compatible with Monterey. Can/should I update it to an earlier MacOS? How?

I have an iMac 21.5 inch, late 2013, running High Sierra 10.13.6 (I know, I know). I think it's not compatible with Monterey. Can/should I update it to an earlier MacOS? How?

iMac 21.5″, macOS 10.13

Posted on Mar 21, 2022 8:04 AM

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Question marked as Top-ranking reply

Posted on Mar 21, 2022 9:05 AM

You can upgrade up to Catalina 10.15.7

See: How to get old versions of macOS - Apple Support

3 replies

Mar 22, 2022 9:56 AM in response to ArmandGamache

IF you have older versions of critical apps, you may wish to upgrade no farther than 10.14 Mojave. Starting with Catalina, older 32-bit software would not run at all. That means older versions of expensive apps like Office and Adobe CS will be dead in the water.


If you are not sure if you have affected 32-bit software, this free tool can check your apps and help point you to newer versions compatible with Catalina and higher:


https://www.stclairsoft.com/Go64/index.html




I have an iMac 21.5 inch, late 2013, running High Sierra 10.13.6 (I know, I know). I think it's not compatible with Monterey. Can/should I update it to an earlier MacOS? How?

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