All you need to do is ensure the minimum OS requirement of 10.6.8 is installed before upgrading to the new system. The OS X 10.11 El Capitan upgrade is available only at the Mac App Store, which means if you have versions of Snow Leopard 10.6.7, Mavericks, Yosemite, Lion, and Mountain Lion, the Mac App Store already exists on your computer.MacBook Air (early-2008 release onwards), Mac Pro (early-2008 release onwards), Mac Mini (Early-2009 onwards), Xserve (Early-2009), MacBook (Early-2015) IMac (mid 2007 release and later), MacBook Pro (mid 2007 release and later), MacBook (2008-released Aluminum Ver. The new OS X El Capitan needs minimum hardware requirements which already exist in older models such as:.Find out which Internet service provider offers broadband compatible with all new features.Get familiar with the new features for a richer user experience. A clean Mac OS X 10.11 El Capitan install is often the best option if features you need accompany the new install.To ensure all new features work on your Mac, acquire an Apple ID.

You need at least 2 GB memory and 8.8 GB of storage available.

10.6.8 or later installed on your current Mac.

Ensure you meet the minimum requirements of having OS X Ver.

The following is some useful tips for upgrading to Mac OS X 10.11: 10 Massive Tips to Ensure Mac OS X El Capitan Upgrade

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