At the developer conference WWDC on June 6, Apple announced the next OS of the iPhone, “iOS 16”. However, the number of terminals that can use this OS is likely to be less than many people expected.

The current software, iOS 15, is available on all iPhone 6s and later devices. Interestingly, they’re in exactly the same group of devices that were running iOS 14, in other words Apple hasn’t truncated any old iPhones for three years.

Many expected Apple to exclude the oldest iPhone 6s and iPhone 6s Plus released in September 2015 from iOS 16 compatible models, but other than that, it has updated to the latest OS. There are three iPhone models that can no longer be used.

First of all, the first iPhone SE announced on March 20, 2016, which is more than 6 years old, may not be so surprising. However, the iPhone 7 and iPhone 7 Plus, released in September of the same year, will lose support as well.

This will prevent users with millions of older devices from accessing iOS 16 with new lock screens and other cool new features.

To summarize the situation, iPhone 8 released in September 2017 and all iPhones after iPhone 8 Plus will run on the new OS. That means that as of the fall of this year, when iOS 16 is officially released, it will cover all devices released within five years. For Android devices, few models offer such a long-term upgrade.

And I would like to point out that Apple’s decision is a balance. If you prioritize adding the latest features, you need the power of the device’s processor, but if you prioritize long-term compatibility, you need to limit the upgrade to work with older processors.

The fact that many models have been removed from the update this time clearly shows that the latest operating systems require power and are therefore likely to be quite advanced.

Of course, not all old iPhones that are out of scope suddenly become unusable, and you can continue to use them as they are now. However, you won’t get the spectacular update just announced.

And some of the features that the latest updates enable are so great that users of older iPhones may want a new device.