Why not push ios 15.4?

I don't push ios 15: 04 because it has been updated to RC version, so I can't get it? IOS 15: 04 official version update push. The version number of iOS 15: 04 is 19E24 1. It should be noted that it is the same as the version number of iOS 15: 04 RC released last week, so students who have updated to the RC version cannot receive the official version update push of iOS 15: 04. If they want to upgrade the official version, they can receive the official version push by deleting the description file.

IOS 15: 04 new system functions

The official version of iOS 15: 04 has a package size of 1: 25GB and a version number of 19E24 1, which is the same as the version number of iOS 15: 04 released last week, so users who have updated to the RC version cannot receive iOS/kloc-0.

The core update function of the official version of iOS 15: 04 is to add mask scene unlocking, but this function only supports iPhone 12 series, iPhone 13 series, iPhone 1 1 series and previous models. In the description of this function, Apple mentioned that when wearing a mask, the iPhone relies on recognizing the unique features around the user's eyes.

In other words, the launch of this function is still based on high-level face recognition technology, and the unlocking focus in the mask scene is around the eyes. To achieve high accuracy and response speed, the processor also needs powerful computing power, which may be the main reason why this function only supports iPhone 12 series and iPhone 13 series.