It addressed a terrifying bug where certain 2016 and 2017 MacBook Pro models simply refused to charge beyond 1%. The Installer Paradox:

In the early months of 2021, Apple released a minor but crucial update to its major operating system overhaul: . For IT administrators, developers, and users who prefer offline installations, the search for the standalone Install macOS Big Sur 11.2.1.dmg file became a common task.