Apple recently pushed the macOS 12.3.1 update (build number: 21E258) to Mac computer users, bringing Universal Control and more. This update is just a small update for the macOS Monterey operating system, which fixes device exceptions and software vulnerabilities such as USB and Bluetooth, and optimizes graphics cards for RX 6800 and others.
NO.1: Mirror image description
This ISO system image is downloaded and made from Apple's official App Store. It is made based on the latest macOS Monterey 12.3.1 (21E258) original App. It can be used for virtual machine installation. Double-click to install, and you can also make a white apple bootable U disk to install the system. There is no modification or addition to the image file, and it is mainly used for the installation of virtual machine systems such as Parallels Desktop, VMware, and ESXI.
NO.2: Update log
The official version of macOS Monterey 12.3.1 (21E258) was released on March 31, 2022, US Eastern Time. It is provided in the form of incremental updates, full installers, and M1 IPSW recovery files. It is mainly security updates and minor bug fixes. It is recommended renew.
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Fixed USB-C or Thunderbolt external display not turning on when connected to Mac mini (2018) as a second display;
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Fixed an issue where Bluetooth devices such as game controllers could disconnect from the Mac after playing audio through some Beats headphones;
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Fixed some 2021 MacBook Pro models unable to update or revert to macOS Monterey 12.3;
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Fixed 2 zero-day vulnerabilities, CVE-2022-22675 and CVE-2022-22674. Apple is aware of reports that this issue may have been actively exploited. For more information, please refer to the official log: https://support.apple .com/zh-cn/HT213220;
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The update does not mention the "bricking" issue of the 12.3 update, which affected some 2021 MacBook Pro users who had replaced their motherboards;
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Enterprise Feature Update: Resolved an issue where software updates could get stuck on the Apple logo and progress bar;
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Launch of Apple Business Essentials for Small Businesses;
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For more enterprise function descriptions, visit the official log: https://support.apple.com/HT212586;
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M1 firmware has been updated, the new version number is 7459.101.3;
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T2 model firmware has been updated, the new version number is 19.16.14243
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Safari has been updated with a new version number 15.4 (17613.1.17.1.13), which ships with 12.3.1 in Monterey, but requires a separate update in Big Sur and Catalina;
Some features are not available in all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222.
NO.3: Precautions
If you are prompted "the copy of the application is damaged" during installation, it cannot be used to install macOS. It is a problem with the Apple system time verification. Just enter the terminal to modify the date. The processing method is a bit different from the installation of the physical machine. The virtual machine passes There is no need to restart the terminal after changing the time.
In addition, the image file is relatively large. In order to prevent installation failure due to missing downloads, it is recommended to verify the md5 file after downloading. The file verification value is as follows:
MD5: 35FAC92D795F60E5A1A530C978B69036SHA1: 37D53916E25DA73C9BACF0F27A1F2C9AD1ABF5ABCRC32: 5B1C35C0
download link:
Disclaimer: This image is only for learning and research purposes, and the above content cannot be used for commercial or illegal purposes.