macOS Big Sur 11.2.1
Some features may not be available for all regions, or on all Apple devices.
How to Download MacOS Big Sur 11.2.1 Update
Always backup Mac with Time Machine or your backup method of choice before installing system software updates.
1 From the ? Apple menu, select “System Preferences”
2 Choose “Software Update” from the control panel options
3 Select “Update Now” for macOS Big Sur 11.2.1
Despite being a small point release update, the macOS 11.2.1 download weighs in around 3.5GB.
Restarting the Mac is necessary complete installation of the system software update.
If the Mac is running Catalina or Mojave, you will see macOS Catalina 10.15.7 Supplemental Update or macOS Mojave 10.14.6 Security Update 2021-002 available instead of macOS Big Sur 11.2.1.