Well, it had to happen eventually...

[daniellei4510]

Fortunately, I only experiment with Generative Fill at this point but the latest version (25.0) came with the notice that it works best with Mac OS 13+. My old Late 2015 iMac won't let me upgrade beyond 12+. It might be time to get a new Mac desktop.

[Kevin Stohlmeyer]

Hi @daniellei4510 it is recommended, but not required at this time. However, I would agree if you want to use the newest PS features, the 2015 iMacs are coming up on the end of support. I ran into this with my 2015 MBP as well. I left it locked in with Monterey and CC2020. Ended up with a new Mac Desktop to keep up with the latest builds.