Running El Capitan version 10.11.6 what should I upgrade. I have an iMac 27" 2011
Running El Capitan version 10.11.6 what should I upgrade. I have an iMac 27" 2011
iMac 27″, OS X 10.11
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This article has link(s) to download the final installer version High Sierra 10.13.6
which is last compatible system with your 2011 iMac 27-inch hardware model.
• How to get old versions of mac OS - Apple Support
https://support.apple.com/en-us/HT211683
• macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
"Safari uses these links to find the old installers in the App Store. After
downloading from the App Store, the installer opens automatically."
Should you also need to consider "creating a bootable installer" to accomplish
this mission, information and links to get the correct installer, details are here:
• How to create a bootable installer for macOS - Apple Support
https://support.apple.com/en-us/HT201372