How to upgrade my Yosemite IOs iMac to latest One?
iMac, OS X 10.10
If your iMac is 2014 or later, see: How to upgrade to macOS Big Sur - Apple Support
If not, see: How to get old versions of macOS - Apple Support
If your iMac is 2014 or later, see: How to upgrade to macOS Big Sur - Apple Support
If not, see: How to get old versions of macOS - Apple Support
re: "It's an iMac OS X Yosemite version 10.10.5" -- that doesn't tell me what model year it is. Go to Apple menu > About This Mac for that information.
re: "I need to upgrade so my new photoshop software start to work again." -- I don't know what Adobe software you have but most of it will not work with the latest Mac software (if you can even update to the latest Mac software).
Reply with the model year of your iMac from Apple menu > About This Mac and I will see if I can advise you on the next step to take.
It's an iMac OS X Yosemite version 10.10.5
I need to upgrade so my new photoshop software start to work again.
IMac (24-inche, Early 2009)
The latest version of macOS you can run is El Capitan 10.11.6.
How to upgrade my Yosemite IOs iMac to latest One?
