Enlarge / The update is available on supported Macs today. (credit: Samuel Axon)
Today, Apple released a small update to macOS Big Sur, numbered 11.2.1. Primarily, it fixes a problem affecting some MacBook Pro models that prevented their batteries from charging properly.
It also fixed a sudo bug that could in some cases play a part in allowing an attacker to gain root access to the device, plus some other security-related updates.
Apple also released supplemental updates for Catalina 10.15.7 and Mojave 10.14.6 to address the same security issues.
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