Note that macOS Big Sur reached its official end-of-life in November 2023 and no longer receives security updates. 🛠️ Common Issues & Troubleshooting
Released on February 25, 2021, was a critical, highly focused update designed to protect Mac hardware from a physical "bricking" threat. ⚡ The "Bricking" Prevention macOS Big Sur 11.2.2 (20D80)
Unlike most Big Sur releases, version 11.2.2 was unusual because it contained (publicly listed security vulnerabilities). It was almost exclusively a hardware-safety patch. Note that macOS Big Sur reached its official