When I click on software update nothing happens with my Mac
Hello- I need to update my macbook air. I have the OS x Yosemite and i'm guessing it needs to be updated to a different macOS operating system? However when i click on software update nothing comes up. It says i need 10.11.4 or later. HELP.
[Re-Titled by Moderator]
MacBook Air (2020 or later)