Apple released macOS Big Sur 11.2, focusing mostly on bug fixes. https://www.macrumors.com/2021/02/01/apple-releases-macos-big-sur-11-2/
According to Apple’s release notes: https://support.apple.com/en-ca/HT211896#macos112
macOS Big Sur 11.2 improves Bluetooth reliability and fixes the following issues:
- External displays may show a black screen when connected to a Mac mini (M1, 2020) using an HDMI to DVI converter
- Edits to Apple ProRAW photos in the Photos app may not save
- iCloud Drive could turn off after disabling the iCloud Drive Desktop & Documents Folders option
- System Preferences may not unlock when entering your administrator password
- Globe key may not display the Emoji & Symbols pane when pressed
There is also a security update, 2021-001, for Catalina and Mojave: https://support.apple.com/en-ca/HT212147
It notably patches CVE-2021-1782, which also affects iOS devices. https://www.macworld.co.uk/news/macos-catalina-mojave-security-update-3801239/