I can't upgrade my Mac book air early 2014
I tried upgrading my Mac book but I don't know how I need help
MacBook Air 13″, macOS 11.7
The 2014 MacBook Air cannot be upgraded beyond macOS 11 Big Sur.
11.7.10 is the latest version that I'm aware of.
This is Apple's how-to guidance: Update macOS on Mac - Apple Support