Upgrading 2015 Mac to SSD and 32 GB RAM: Can I go beyond Big Sur?

Question

I upgraded my 2015 Mac to SSD and 32 gig ram what stops me from going beyond Big Sur

iMac (Retina 5K, 27-inch, Mid 2015)

3.3 GHz Quad-Core Intel Core i5

32 GB 1600 MHz DDR3

AMD Radeon R9 M290 2 GB

[Re-Titled by Moderator]

Original Title: Going beyond Big Sur

iMac 27″, macOS 11.7

Posted on Sep 16, 2025 02:03 PM

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Answer 1

Level 10

122,178 points

You have a mid-2015 iMac and macOS Monterey 12.* requires a Late-2015 model.

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