Macos Big Sur 11.5.1 (20g80) | 2026 Update |

: An application could potentially execute arbitrary code with kernel privileges.

: Updated the Library tab to allow users to see all shows or only followed shows. macOS Big Sur 11.5.1 (20G80)

: Available for all Macs compatible with Big Sur, including MacBook (2015+), MacBook Air (2013+), and iMac (2014+). : An application could potentially execute arbitrary code

: Users typically install this by going to System Preferences > Software Update . including MacBook (2015+)

: Despite being a single-patch update, the download size was approximately 2.2 GB for Intel Macs and over 3.1 GB for M1 Macs . Improvements from the 11.5 Branch

Released on July 26, 2021, is a maintenance update primarily focused on a critical security patch. Key Update Details

: Addresses a serious vulnerability in the IOMobileFrameBuffer .