MacOS 11.7.8

macOS 11.7.8 (build 20G1351) is an update to macOS 11 (Big Sur) that was released on June 21, 2023 by Apple Inc.

Development history
This build included a security update to address a kernel vulnerability. A release candidate (build 20G1403) became available through the Apple Developer program on May 19, 2023. However, the final release had a lower build number and subsequent release candidates were instead prepared for macOS 11.7.9.