: A second version of the 11.2.1 update (Build 20D75) was later issued to fix a flaw where the installer failed to check for sufficient disk space before starting, which previously could leave a Mac unusable if it ran out of room mid-install. Installer Details and Requirements
The is a disk image file containing the full installation package for Apple’s eleventh major macOS release, version 11.2.1. This update was publicly released on February 9, 2021 , primarily as a maintenance and security update, addressing critical vulnerabilities and system stability issues.
: The update plugged a significant security hole in Sudo , a 10-year-old vulnerability that could allow attackers to gain root access and take control of a Mac.
The 20D75 revision fixed a critical error where the installer would proceed without sufficient storage, causing it to fail mid-process and leave the system in an unbootable state. Technical Specifications
: A second version of the 11.2.1 update (Build 20D75) was later issued to fix a flaw where the installer failed to check for sufficient disk space before starting, which previously could leave a Mac unusable if it ran out of room mid-install. Installer Details and Requirements
The is a disk image file containing the full installation package for Apple’s eleventh major macOS release, version 11.2.1. This update was publicly released on February 9, 2021 , primarily as a maintenance and security update, addressing critical vulnerabilities and system stability issues. macos big sur 1121 installer dmg
: The update plugged a significant security hole in Sudo , a 10-year-old vulnerability that could allow attackers to gain root access and take control of a Mac. : A second version of the 11
The 20D75 revision fixed a critical error where the installer would proceed without sufficient storage, causing it to fail mid-process and leave the system in an unbootable state. Technical Specifications : The update plugged a significant security hole
