Not only isn't this relivant it isn't even true or at least very misleading.
Apple patches the newests version of iOS. Sometimes older versions get a security update here or there, maybe. So you'd have to be running the latest version of you want security fixes. Which isn't always possible due to compatibility or performance/stability.
If your iPhone is 3 or more years old you can forget any support from Apple whatsoever.
I guess the reason is cost. There are times I want to reinstall on older operating system, and Apple seems to go out of their way to make it difficult? In some cases impossible.
Why not please your customers? Give them what they want? I don't even think the average customer would need a TOS of all the negatives using an older operating system brings.
They have a huge war chest. If a customer wants to be on the operating system that came on their device ten years ago; why make it difficult?
Could it be they want us to upgrade/buy regularly? For myself, I don't think I will ever buy another new Apple product. I will still give them as gifts though.
The iPhone 4s wasnt discontinued until September 9, 2014. The 4s is the first iPhone to last 4 generations but 4s users have complained (and even filed a lawsuit) about the performance of iOS9 on the 4s.
Apple patches the newests version of iOS. Sometimes older versions get a security update here or there, maybe. So you'd have to be running the latest version of you want security fixes. Which isn't always possible due to compatibility or performance/stability.
If your iPhone is 3 or more years old you can forget any support from Apple whatsoever.