Technically speaking my 2011 3.4gHz i7 iMac was the most powerful computer I would ever 'need'.
But they brickwalled it to High Sierra. Which was fine for a while because I didn't 'need' the features in the new OS's.
But because I couldn't upgrade to newer OS's, eventually the only apps it could run were obsoleted, and newer versions of the apps were unsupported on my OS.
Then the security-updates stopped.
Then the version of Safari and other browsers it could run became incompatible with modern webpages.
And then it became a doorstop.
This is a key topic, honestly. For reference, I sold my 2010 MBP two years after it got stuck on High Sierra, and my current 2014 Mac mini has been stuck in Monterey for more than two years already but support for Monterey is still quite good (although some apps are already asking Sonoma as a base requirement, right
@Bjango ?). And it is now after the two years of security patches and Safari updates, that I’m more decided than ever to get a new M4 Mac mini.
I understand the faster loss of support of Intel Macs, but I really, really hope macOS support on Apple Silicon to be longer and better. After all, all M1, M2, M3 and M4 share the same SoC design, with small differences such as the Neural Engine experiencing a notable boost on the M2 gen, including a new GPU architecture with Ray Tracing on the M3, and the M4 being based on the new ARM v9 I think.
Then, there’s the thing with base RAM. Jumping to 8GB as standard baseline RAM on the iPhone/iPad and 16GB as standard baseline RAM on the Mac, could have repercussions on OS support, I’m afraid.
But all in all, I really expect Apple to stretch the macOS support for Apple Silicon up to 8 years, plus the two usual years of security fixes and Safari updates. That would make a total of 10 years of support. Of course, dropping some features after 5 or 6 years like they do on iOS.
Sharing so many design similarities among all the SoC, from the A12 to the M4, I really think it is time to optimize Apple’s Operating Systems to take full advantage of their silicon.