In September 2015, Apple launched OS X El Capitan. We'd like to offer you a brief overview of OS X El Capitan and try to answer some questions you may have at this time.
OS X El Capitan is the newest version (version 10.11) of the desktop operating system for Apple computers. It contains several new features and improvements that will make your computer more efficient and easier to use.
Nothing—OS X El Capitan is a free upgrade.
Anyone with an Apple computer using Snow Leopard, Lion, Mountain Lion, Mavericks, or Yosemite can upgrade to OS X El Capitan. The system requirements for El Capitan are the same as those for Yosemite. For a full list of hardware requirements, view the OS X Technical Specifications.
If you have an earlier version of OS X (such as Leopard), you cannot upgrade to OS X El Capitan.
If you buy a new Apple computer, it will come pre-installed. You won't need to do anything to install it.
If you want to upgrade an existing computer, you can download and install OS X El Capitan by going to the App Store on your Mac (shown below) and clicking Updates.
OS X El Capitan is only available as an online download—you cannot purchase a physical copy at a retail store.
Each new version of OS X generally includes several new features, and El Capitan is no exception. Some of the most important changes include:
To learn even more about these features, check out this page from Apple.
Any apps you previously had installed on your computer will still be there once you upgrade. Some Apple apps, such as Safari and Calendar, will be updated automatically when you upgrade.
Almost all apps installed on your computer should work correctly in OS X El Capitan. However, as with any new operating system some software may not be totally compatible. A simple Google search will often be enough to tell if an app will be compatible with OS X El Capitan.