You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

upgrade macOS high sierra

is it possible to upgrade macOS High Sierra (21.5-inch, Late 2009)?

iMac, macOS 10.13

Posted on Aug 28, 2021 2:43 PM

Reply
Question marked as Top-ranking reply

Posted on Aug 28, 2021 3:09 PM

A late-2009 iMac can be upgraded to High Sierra 10.13.6 but no later version.

See the following from: Identify your iMac model - Apple Support


iMac (21.5-inch, Late 2009)

Model Identifier: iMac10,1

Part Number: MB950xx/A, MC413xx/A

Latest compatible operating system: macOS High Sierra 10.13.6

2 replies

upgrade macOS high sierra

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.