Apple updates the Macintosh Operating System (OS) every year and it is normally rolled out in the Fall. Here at Brewster, we intentionally wait a full year before making the switch to the latest OS so that Apple can work out all the bugs and all of the other Applications can be updated to be compatible.
You may have noticed Apple pushing the latest OS update, “El Capitan” – Don’t attempt to download it! The IT department has blocked its installation from all BA computers until the summer of 2016.
Ignore the annoying notification that pops up in the upper right corner of your screen:
In the Apple App Store, DON’T click the Free Upgrade button: