: Addresses a serious vulnerability in the IOMobileFrameBuffer .
: Apple stated they were aware of reports that this issue may have been actively exploited in the wild. macOS Big Sur 11.5.1 (20G80)
: Resolved an issue where smart cards might not work correctly when logging into M1-based Macs. Installation & Compatibility including MacBook (2015+)
: Available for all Macs compatible with Big Sur, including MacBook (2015+), MacBook Air (2013+), and iMac (2014+). MacBook Air (2013+)