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Re our macOS Sierra, with Version 10.12.6 late 2015. I need to update to at least ver.13 High Sierra. My question is that, any thoughts on going higher or even to the latest - Monterey?

Re our macOS Sierra, with Version 10.12.6 late 2015. I need to update to at least ver.13 High Sierra. My question is that, any thoughts on going higher or even to the latest - Monterey?

iMac 27″, macOS 10.12

Posted on Nov 10, 2021 9:15 AM

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Posted on Nov 10, 2021 9:34 AM

Operating system upgrades are issued for a reason. They often provided new features and increased security. Additionally, some apps which you may want to install may require a newer OS to function. It is my belief that it is good to (1) keep my Mac's OS and its apps up to date to the extent possible, and (2) do various maintenance steps to keep things running smoothly.

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Nov 10, 2021 9:34 AM in response to lxcrz

Operating system upgrades are issued for a reason. They often provided new features and increased security. Additionally, some apps which you may want to install may require a newer OS to function. It is my belief that it is good to (1) keep my Mac's OS and its apps up to date to the extent possible, and (2) do various maintenance steps to keep things running smoothly.

Nov 11, 2021 1:59 AM in response to lxcrz

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


One may consider upGrading to High Sierra first if considering upgrading to any version above High Sierra. This may better position the computer for the Drive Conversion to the newer APFS format as well as any EFI BOOT ROM required to use the newer file format.


Tips Big Sir Upgrade "thoughts on going higher or even to the latest - Monterey? " answers within link


Tips Monterey Upgrade "thoughts on going higher or even to the latest - Monterey? " answers within link


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

Re our macOS Sierra, with Version 10.12.6 late 2015. I need to update to at least ver.13 High Sierra. My question is that, any thoughts on going higher or even to the latest - Monterey?

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