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Upgrade to OS X El Capitan - Apple Support
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OS X El Capitan requires one of the following Mac models and versions of OS X. It also requires at least 2GB of memory and 8.8GB of storage space.
- iMac (Mid 2007 or newer)
- MacBook (Late 2008 Aluminum, Early 2009, or newer)
- MacBook Pro (Mid 2007 or newer)
- MacBook Air (Late 2008 or newer)
- Mac mini (Early 2009 or newer)
- ~Mac Pro (Early 2008 or newer) This is me here!
- Xserve (Early 2009)
- OS X Yosemite v10.10
- OS X Mavericks v10.9
- OS X Mountain Lion v10.8
- OS X Lion v10.7
- Mac OS X Snow Leopard v10.6.8
To find your model, memory, storage, and version of OS X, choose About This Mac from the Apple menu. Here's a shortcut: If your Mac is using OS X Yosemite or Mavericks, it can use El Capitan. Otherwise, make sure that your Mac meets the other requirements.