Macos Big Sur 11.2.2 (20d80) May 2026

This was one of the early critical updates for the then-new M1 Apple Silicon Macs, which were particularly susceptible to the USB-C dock issue.

Note that macOS Big Sur reached its official end-of-life in November 2023 and no longer receives security updates. 🛠️ Common Issues & Troubleshooting macOS Big Sur 11.2.2 (20D80)

Occasional reports of UI sluggishness led experts to recommend running tools like EtreCheck to identify conflicting third-party software. This was one of the early critical updates