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Is there any way to update my Mac Sierra 10.12.6 to Catalina or later? I want to use a new Ipad as a Sidecar to this screen, basically to use it as a monitor, but it requires Catalina or later. THANKS!!!

Is there any way to update my Mac Sierra 10.12.6 to Catalina or later? I want to use a new Ipad as a Sidecar, basically use the desktop as a monitor, but it requires Catalina or later. THANKS!!!

iMac 21.5″, macOS 10.12

Posted on Dec 18, 2022 12:56 PM

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Question marked as Top-ranking reply

Posted on Dec 18, 2022 12:58 PM

The model year of an iMac is available at Apple menu > About This Mac.

An early 2009 iMac can be upgraded to El Capitan 10.11.6 but no later version. See: How to download macOS - Apple Support

A late 2009 through mid 2011 iMac can be upgraded to High Sierra 10.13.6 but no later version. See: How to download macOS - Apple Support

A late 2012 through late 2013 iMac can be upgraded to Catalina 10.15.7 but no later. See: How to download macOS - Apple Support

A mid 2014 and late 2014 iMac can be upgraded to the latest version of Big Sur macOS 11 but no later. See: How to download macOS - Apple Support

A late 2015 iMac can be upgraded to the latest version of Monterey macOS 12. See:How to download macOS - Apple Support

A 2017 or later iMac can be upgraded to the current version of Ventura macOS 13. See: How to upgrade to macOS Ventura - Apple Support


2 replies
Question marked as Top-ranking reply

Dec 18, 2022 12:58 PM in response to Peg402

The model year of an iMac is available at Apple menu > About This Mac.

An early 2009 iMac can be upgraded to El Capitan 10.11.6 but no later version. See: How to download macOS - Apple Support

A late 2009 through mid 2011 iMac can be upgraded to High Sierra 10.13.6 but no later version. See: How to download macOS - Apple Support

A late 2012 through late 2013 iMac can be upgraded to Catalina 10.15.7 but no later. See: How to download macOS - Apple Support

A mid 2014 and late 2014 iMac can be upgraded to the latest version of Big Sur macOS 11 but no later. See: How to download macOS - Apple Support

A late 2015 iMac can be upgraded to the latest version of Monterey macOS 12. See:How to download macOS - Apple Support

A 2017 or later iMac can be upgraded to the current version of Ventura macOS 13. See: How to upgrade to macOS Ventura - Apple Support


Is there any way to update my Mac Sierra 10.12.6 to Catalina or later? I want to use a new Ipad as a Sidecar to this screen, basically to use it as a monitor, but it requires Catalina or later. THANKS!!!

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