In the early morning of this morning, Apple urgently pushed the update of the official version of iOS 15.3.1 for the majority of iPhone users, and users can directly open the settings - general - software update, and directly upgrade the system on the iPhone.
The size of this update package is only about 250M, the updated version number is (19D52), according to Apple's official update instructions, this update is mainly for the important security update of the iPhone, and fixes the corresponding problem that may cause the Braille display to stop.
Just when everyone thought that the next official version of iOS pushed by Apple would be the official version of iOS 15.4, the official version of iOS 15.3.1 was suddenly killed halfway, according to Apple's previous practice, this situation is generally a major vulnerability in the previous iOS system, resulting in Apple having to urgently push the official version update to repair.
Judging from the update feedback of fruit fans, the official version of iOS 15.3.1 did not bring any obvious functional updates. Apple's official update notes show that iOS 15.3.1 fixes a WebKit vulnerability in the Safari browser.
It is reported that the vulnerability will lead to users in the processing of maliciously crafted web content may lead to arbitrary code execution, Apple has been aware that this vulnerability may have been actively exploited.
The vulnerability will affect iPhone 6s and newer models, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later models, iPad mini 4 and newer models, and iPod touch (7th generation).
Of course, although the scope of impact is very wide, but these vulnerabilities have little to do with our ordinary users, users can choose whether to upgrade, if you are worried about the iPhone vulnerability affects the iPhone, it is recommended to upgrade.
The above is the general update of the official version of iOS 15.3.1, what new features have you found? Welcome to leave a message to share~
It should be noted that with the release of the official version of iOS 15.3.1, it is expected that Apple will close the system verification channel of the official version of iOS 15.3 soon, if you have upgraded to iOS 15.3.1 or the latest iOS 15.4 beta, if you want to downgrade back to the official version of iOS 15.3, remember to save the data to downgrade back early.
Of course, if you usually take off the mask because you need to unlock the iPhone, then Xiaobian recommends that you upgrade to the latest iOS 15.4 beta version, which can support wearing a mask to unlock the iPhone. The upgrade method is also very simple, as long as we reply to the "test" in our fruit powder home, install the iOS 15 beta profile, you can directly upgrade the OTA on the iPhone, without flashing the machine.
Having upgraded to the latest iOS 15.4 beta, there is no need to downgrade, as Apple has already fixed this vulnerability in the latest iOS 15.4 beta.