In the early hours of this morning, Apple released the iOS 15.3.1 official system update, half a month after the last official version.
The system version number for the official release of iOS 15.3.1 is 19D52.
Users who have upgraded to the iOS 15.4 beta version cannot receive this push, and users need to download the relevant firmware to downgrade.
However, the downgrade operation is more cumbersome, if there is no special need, Xiaoguo here is not recommended for everyone to toss.
According to Apple's system update description, iOS 15.3.1 is mainly for the fix of system bugs, and does not bring obvious functional changes.
This update fixes an issue that could cause the braille display to stop responding.
In addition, according to Apple's official technical support documentation, this update mainly fixes a WebKit vulnerability that may allow maliciously crafted web content to cause arbitrary code execution.
At present, there are reports that the vulnerability may have been actively exploited.
So Apple said that in order to avoid users being affected by the vulnerability, it recommends that iPhone and iPad users update to the latest iOS 15.3.1 / iPadOS 15.3.1 as soon as possible.
In fact, Apple fixed a bug in the Safiri browser in the official version of iOS 15.3 released last month, which may leak data such as users' browsing history and Google ID.
The update of the iOS 15.3.1 official version is also a further investigation of the problem and further optimizes the user experience.
At the same time, Apple has also made the same security update in the official version of macOS Monterey 12.2.1 released today, and the vulnerability has been fixed synchronously.
In addition, in the macOS 12.2.1 release system, Apple solved a Mac in sleep mode because of the connection to Bluetooth and consume too much power.
Previously, some users reported that after installing the macOS 12.2 system, when the Mac is connected to Bluetooth and is asleep, Bluetooth will often automatically wake up the Mac, resulting in a huge power consumption.
The problem is resolved when Bluetooth is disabled or when the Bluetooth accessory disconnects from your Mac, but it's obviously not a reasonable solution.
As a result, Apple fixed this issue in the official release of macOS 12.2.1 released today.
Mac users who have experienced similar issues during use may consider upgrading their macOS 12.2.1 system.
In addition, at present, many small partners are looking forward to the release of the official version of iOS 15.4, and the new mask unlock function of the new system has attracted the attention of many users.
Apple introduced the mask unlocking function in the iOS 15.4 Beta 1 system, and optimized the function in the Beta 2 version of the day before yesterday.
At present, the function is still very practical, the unlocking efficiency is generally the same as when not wearing a mask, and mobile payment can be used normally.
In addition, this function can also enter special facial features for wearers to meet the needs of those who wear glasses.
Friends wearing glasses can enter "Settings" - "Face ID and Password" and select "Wear Glasses" to enter face information.
After testing, a maximum of 4 pairs of glasses are currently supported, and when wearing sunglasses, this function is not supported for the time being due to the obstruction of eye features.
According to the convention, it is expected that the official version of iOS 15.4 will be pushed to users before and after Apple's spring conference, and practical functions such as mask unlocking will be officially launched.
According to the current rumors from the outside world, Apple's spring conference will most likely be held on March 8.
We'll see.
For more information about the use of Apple device knowledge and skills and to inquire about the warranty, you can pay attention to my WeChat public account: cxkj-001 (fruit powder club).