In the early hours of this morning, Apple released the official version of iOS 15.4.1, and this update is only about half a month after the last official release.
Although the iOS 15.4 system has added new features such as wearing a mask to unlock the iPhone for the iPhone 12/13, many netizens have reported that the iOS 15.4 system consumes too much power and other issues. So what's changed in this update? Let's take a look at it together.
The updated version number is: 19E258, according to the file, this update mainly fixes bugs and security issues, and Apple recommends that all users install it, and there is no mention of any new features above.
However, according to the documentation of Apple's official technical support, after Apple has fixed the update of the iOS 15.4 system, the battery power may consume faster than expected; braille devices may not respond when touring text or displaying reminders; and hearing aids may be interrupted in some third-party apps.
Upgrade suggestions, if you are currently already on an iOS 15.4 system, then you can directly choose to upgrade. But if you are not an iOS 15 system, then you can consider not upgrading, especially old devices, do not blindly upgrade the system.