能不能ios每个大版本都开放一个最好的小版本留给用户升级啊？
每个版本都关闭了，只剩最新的版本。那么一些低版本的手机很可能不支持升级最新版本。等到app逐渐不支持旧系统版本的时候，又无法升级，那么手机不就废了吗？
iPhone 13 Pro Max
Question marked as
Various iOS upgrades require specific hardware features, such as sufficient memory or processor features.
Older devices will lack these features, and will be deprecated.
There is no means to allow infinite upgrades.
Supporting the older apps and tools for longer comes at the cost of fewer new features and fewer enhancements, too.
And yes, after roughly seven to maybe ten years, a cellphone is no longer supported, and with decreasing app support.
iPhone 6 from 2014 has reached that declining-usefulness stage, for instance.
If you’d like this to work differently, send Apple your feedback, as they may or may not see it here.