Leaping Into a System Upgrade - The New York Times
Using Software Update on the Macbook | Technology Support Services
Check Mac OS Version | Information Technology
How to find out macOS version using terminal command - nixCraft
How to Check What Version of macOS You Have on a Mac or MacBook - YouTube
How to Check What Mac OS Version is Running on a Mac | OSXDaily
How to find out which Mac, Windows, or Chrome operating system you have | Mashable
How to Find out Which macOS Your Mac is Using? - Laptop/Mobile Service Center
How to Find Which Version of macOS You're Using | ExpressVPN
The full list of all macOS versions until 2023
The full list of all macOS versions until 2023
macOS versions: Every version including the latest | Macworld
Why can't I update my 2015 Macbook Air to a newer OS than version 10.11.6 ? : r/MacOS
Update macOS on Mac - Apple Support
How to Check MacOS Version (GUI+CLI) – TecAdmin
How to Check What Mac OS Version is Running on a Mac | OSXDaily
macOS compatibility: What macOS versions can my Mac run? | Macworld
How to check your Mac's software compatibility - 9to5Mac
Finding what version and build number of macOS you have on your Mac
Checking for Updates - mac OS | Department of Animal Science
Mac Security Tip: Finding System and Application Versions - The Mac Security Blog
How to Find macOS Version and Build Number? – WebNots
How to Find out Which macOS Your Mac is Using? - Laptop/Mobile Service Center
How to Check If You Have the Latest macOS Version
