upgrading my MacBook Air (“MacBookAir6,2”) from macOS Catalina (AKA 10.15) to just macOS Big Sur (AKA 11) johayek 12 months ago What an adventure … macOS 11 is the latest macOS, they provide for my MacBook Air. https://en.wikipedia.org/wiki/macOS_version_history https://en.wikipedia.org/wiki/macOS Share this: