Highest OS?

Hello there, I would be pleased to know if high sierra is the highest OS for my iMac from late 2009.

Thank y'all.

iMac 27″, macOS 10.13

Posted on Aug 22, 2021 10:54 AM

Top-ranking reply

rkaufmann87

Level 10

148,660 points

Posted on Aug 22, 2021 11:07 AM

High Sierra 10.13.6 is the last version of Mac OS a late 2009 iMac will run.

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1 reply

Top-ranking reply

rkaufmann87

Level 10

148,660 points

Aug 22, 2021 11:07 AM in response to Kingston20

High Sierra 10.13.6 is the last version of Mac OS a late 2009 iMac will run.

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Highest OS?

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