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.
: Supports MacBook (2015+), Air/Pro (2013+), Mac mini (2014+), and iMac (2014+). 🚀 How to Use the Installer Open the DMG : Double-click the file to mount it. macos big sur 1121 installer dmg
This point release primarily focused on bug fixes and security patches: macOS Big Sur 11
date 0101010115
Specifically addressed an issue where some 2016 and 2017 MacBook Pro models were unable to charge past 1%. Cause: Expired certificate
For InstallAssistant.pkg (common name for full installer DMG):