Q: Upgrade from Mountain Lion to "El Capitan"
-
Jun 21, 2016 6:04 AMby mende1,Welcome to Apple Support Communities
Looking at the specs, it looks like your MacBook Air supports OS X El Capitan and will also support macOS Sierra when it is released.
To get OS X El Capitan, you only have to download it from the Mac App Store (it will show an error message if your Mac is not compatible). The installer will show up when the download finishes, so follow its steps. Make a backup of your files on an external drive before upgrading (the easiest way to do one is through Time Machine).
-
Jun 21, 2016 10:21 AMby Eric Root,Check to make sure your applications are compatible.
Applications Compatibility (2)
El Capitan 10.11 Compatibility information
Also check to make sure there is a compatible driver for your printer.
Do a backup before installing, preferable 2 backups on 2 different drives.
