Yer_Man wrote:
If you keep asking that question you will never update anything.
Not necessarily. There are always external factors that can require an upgrade. An older computer could fail. A newer iDevice could require an upgrade. Apple releases a new lines of products that is simply irresistible.
If you don't want to update/upgrade... then don't.
But this also requires a steadfast self-confidence that many people lack. There is heavy pressure to upgrade from all fronts - corporate IT admins to social media influencers. If you don't upgrade your computer today, the North Koreans will hack you tomorrow. And we all know how bad that would be.
Sure, it's fun to make jokes, but the pressure's real. Lots of people do succumb to the pressure, upgrade, and then experience problems. And if you think about it, it seems reasonable that people who are most likely to be influenced by the upgrade pressure are likely to be influenced by scamware, "security researchers", and other influencers.
If you do, make a back up or even two, and do it. If you have a problem then roll back with your back ups. If you don't have a problem - and like millions of others you probably won't - then good, get on with your life.
For people who use the Macs for work, especially self-employed, I recommend regularly buying a new computer during that early fall timeframe and testing out the latest (or perhaps the previous 😄 ) version. That way, you know exactly what you'll get. If disaster strikes, you don't need to worry about restoring, you've got another computer. Someone could use this system to camp out on last year's stable OS version for all eternity.
Why a year? Why not 15 months? why not 9? It's just a random number with no sense to it.
It's not random at all. Apple releases a new version of the OS every year. It's definitely worth paying attention to what's going on, even if one doesn't choose to upgrade. That information can inform one's decision and planning. For example, any computer purchased in early Fall is not going to be running the next, buggy OS version, yet it will be capable of running whatever the fancy new version might bring.
At the end of the year a new OS is released. And then you update to the older one and then what? It's not getting developed any more, so the problems that might be there won't be getting fixed. How does that help you?
But you'll know what those problems are. There might be workarounds that people have developed in the past year to ameliorate the problems. You won't be getting any new features, but you are also significantly less likely to get any new bugs.
Sonoma 14.4 had serious problems. Apple only fixed those problems literally the day before the official kick off of macOS 15.