My iPhone 13 and new iPad can upgrade to the 15.5 IOS, but my MacAir (2020 model) can only upgrade to 13. Please explain.
I have a 2020 model MacAir, but can only upgrade it to IOS version13, unlike my iPhone and iPad which upgraded to 15.5. How do I upgrade my MacAir so that all three Apple devices are operating on IOS 15.5?
MacBook Air 13″, macOS 12.3