The first major update to macOS Big Sur is version 11.1 and it's now available for download. Ostensibly bringing some new feature updates and bug fixes, Big Sur 11.1 rolls out compatibility with the new AirPods Max as well as a fix for older MacBook Pros that were unable to upgrade to Big Sur. 11.1 also re-enables Big Sur to be downloaded on 13-inch MacBook Pro models from late 2013 to mid-2014. The Support page will also be updated.
Onter notable features are an updated Apple TV+ app, Apple ProRAW format editing capability in the Photos app, and some refinements in UI and window sizing particular to the new M1 Apple Silicon Macs. You can update your desktop or laptop Mac through Software Update in About This Mac on the Finder.