Apple removed the "ContentFilterExclusionList," meaning Apple's own apps can no longer bypass third-party firewalls or VPNs, closing a notable security gap.

It fixed a frustrating issue where external displays remained black when connected to an M1 Mac mini via an HDMI to DVI converter.

This update significantly improved Bluetooth connection stability, a major pain point for users who experienced frequent disconnects with peripherals.

Released as the second major update to the Big Sur operating system, version 11.2 was a critical maintenance release. While it lacked the visual flash of the initial Big Sur redesign, it addressed several "teething" issues that had plagued early adopters, particularly those on new M1 Macs. Key Fixes and Improvements

Resolved an issue where the administrator password might not unlock System Preferences panes. Performance and User Experience macOS Big Sur 11.2 is Out! - What's New?

Review: macOS Big Sur 11.2 – The Stability Patch February 1, 2021 Primary Focus: Bug fixes, Bluetooth reliability, and security

A bug preventing edits to Apple ProRAW photos from saving in the Photos app was successfully patched.