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I have an iMAC 21.5 inch late 2015 model. I bought it in May 2016. If I download Catalina OS X to replace my EL Capitan OS v 10.11.16. Could there be problems

I have an iMAC 21.5 inch late 2015 model. I bought it in May 2016. If I download Catalina OS X to replace my EL Capitan OS v 10.11.16. Could there be problems

iMac 21.5", OS X 10.11

Posted on May 1, 2020 6:27 PM

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Question marked as Top-ranking reply

Posted on May 1, 2020 6:37 PM

You won't be able to run any older 32bit software. Other than that you should be fine. Make sure to have a current backup in case anything does go wrong.

3 replies

I have an iMAC 21.5 inch late 2015 model. I bought it in May 2016. If I download Catalina OS X to replace my EL Capitan OS v 10.11.16. Could there be problems

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