Recommendations versions to update current iMac OS X El Capitan to?

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Recommendations versions to update current iMac OS X El Capitan to?

I need to update my iMac but not sure if I should go to the most current OS available or just update it to one that will still allow newer iphones and other devices to connect. I have the following system:

Model Name: iMac (Retina 5k, 27-inch late 2015)

OS X El Capitan Version 10.11.6

Model Identifier: iMac17,1

Processor Name: Intel Core i5

Processor Speed: 3.2 GHz

Number of Processors: 1

Total Number of Cores: 4

L2 Cache (per Core): 256 KB

L3 Cache: 6 MB

Memory: 8 GB

Boot ROM Version: IM171.0157.B00

SMC Version (system): 2.33f10

I'm getting errors connecting other devices like my new iPhone 13 as it requires an update.

Thanks.

Posted on Jan 7, 2022 2:14 PM

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Answer 1

Owl-53

Level 10

102,643 points

Jan 8, 2022 1:27 AM in response to batsports

The Age of this computer will Govern what newer version of macOS it will Qualify to install. Use About this Mac from the Apple Icon on Desktop - the required Information will be there.

With the above information in-hand - follow this How to get old versions of macOS and verify what version this computer Qualifies to install. For Best results use Safari to commence the download as Others may not work.

Safari will open a redirect and open the Apple Store where the download can commence

Tips Big Sir Upgrade Released Nov 2020

macOS Big Sur is compatible with these computers

Tips Monterey Upgrade Released Oct 25, 2021

macOS Monterey is compatible with these computers

Make Time Machine Backup is very useful and can be used to Revert to Previous Working macOS

Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Catalina, Big Sur & Monterey supports only 64 bit and there is no workaround.

Suggest using Go64 to find 32 bit application before attempting the upGrade. Some or many of the Application already installed may required update or upGrades to 64 Bit Versions.

Are there any AntiVirus, Disk Cleaner, Optimizers, Un-installers, etc installed which should be removed as per Developers Instructions. They are useless, unneeded, cause havoc and interfere with the normal operation of the OS and may even Corrupt the OS requiring a Reinstallation

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Recommendations versions to update current iMac OS X El Capitan to?

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