A Week With El Capitan, the Next Version of Mac OS X
The latest version of Mac OS X, El Capitan, was named quite intentionally. El Capitan is one of Yosemite National Park's most recognizable landmarks, a 3,000-foot ridge climbers love trying to summit. It's cool, but it's only one part of Yosemite, a great feature.
Mac OS X El Capitan: Modest upgrade promises welcome features
OS X El Capitan: first look
Apple OS X El Capitan Developer Preview