how to update to mac os 10.15
I have 10.13.6 on my desk top Mac how to update on 2009 computer
iMac, macOS 10.13
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I have 10.13.6 on my desk top Mac how to update on 2009 computer
iMac, macOS 10.13
A late 2009 iMac cannot be upgrade beyond High Sierra 10.13.6.
Also see the following from Identify your iMac model - Apple Support
iMac (27-inch, Late 2009)
Model Identifier: iMac10,1
Part Number: MB952xx/A, MB953xx/A
Newest compatible operating system: macOS High Sierra
iMac (21.5-inch, Late 2009)
Model Identifier: iMac10,1
Part Number: MB950xx/A, MC413xx/A
Newest compatible operating system: macOS High Sierra
That Mac model can't be upgraded past High Sierra.
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how to update to mac os 10.15