In the early morning of March 15, 2022, Apple officially released the iOS / iPadOS 15.4 official version update (build number: 19E241), which is the fourth major version update since the advent of iOS and iPadOS, only a month or so after the last upgrade. The biggest highlight of iOS 15.4 is the addition of the function of wearing a mask to unlock Face ID.
In terms of details, the settings interface of iOS 15.4 adds an option that allows users to unlock Face ID when wearing a mask. It is understood that wearing a mask to unlock Face ID works similarly to ordinary Face ID, scanning the area around the eyes for authentication. Even iPhone users can use Face ID wearing masks to make Apple Pay payments.
It is worth noting that iPadOS 15.4 has finally launched a universal control function, and users can use a set of keyboard and mouse to jump between different Macs and iPads to further improve work efficiency. Considering that there is still a period of time, Apple will hold the WWDC Developer Conference, so presumably the iOS 16 system is also ready to go. （PChome）