Apple has released macOS Big Sur 11.2.1 Update, which should fix the nasty issue following the release of macOS Big Sur 11.2 last week.
Recall that MacBook Pro 2016 and 2017 users who installed macOS Big Sur 11.2 update reported that their laptops stopped charging. The macOS Big Sur 11.2.1 changelog states that this is the only purpose of the new firmware.

In addition, Apple has also released additional updates for macOS Catalina and macOS Mojave that address some security issues. Apple is already beta testing macOS Big Sur 11.3, the next major operating system update. However, the beta version brought new problems for some users.
Apple has officially announced that 35.5 GB of free space is required to install the beta version of macOS Big Sur 11.3, but the system update can still be launched when there is not enough space on the hard drive. But if you do this, you will lose all your data.
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