how do i update my MacBook Air to iOS 11
How do I update my macbook air to iOs11
MacBook Air 13″, macOS 10.15
The model year of a MacBook Air is available at Apple menu > About This Mac.
A mid 2012 MacBook Air can be upgraded to Catalina 10.15.7 but no later
A mid 2013 and early 2014 MacBook Air can be upgraded to the latest version of Big Sur macOS 11 but no later.
An early 2015 and a 2017 MacBook Air can be upgraded to the latest version of Monterey macOS 12 but no later.
For all of the above, see instructions in: How to download and install macOS - Apple Support
A 2018 or later MacBook Air can be upgraded to the current version of Sonoma macOS 14. See: How to upgrade to macOS Sonoma - Apple Support