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SoftwareMedia Blog | December 1, 2015

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History of Mac OS X

History of Mac OS X

| On 29, Jul 2012

The recent Mac OS release of 10.8 Mountain Lion has made us here at reflect on the history of Mac OS X and the advancement it has made over the past decade. From the heyday of PowerPCs and G3s to blazingly fast Intel i7s and monster 27-inch iMacs, the Mac operating system history for version ten has been full of “oohs” and “ahhs”.

For each release of Mac OS X, Apple assigned a large cat from the animal kingdom to be its codename. The names became quite popular in the Apple community, and now it is more common to call a release by its codename that it’s numbered version. This goes the same for OS X Lion—whose release date is expected sometime this summer.

Below we’ve pieced together a Mac OS chronology for version X, complete with codenames, box art, key features and, of course, the Mac OS release dates. We hope you enjoy our tribute to the history of Mac OS X and are as excited as we are about the OS X 10.8 Mountain Lion debut this year.


10.0 Cheetah

Release Date: 3/24/2001

Key Features:

Aqua Interface, Dock


10.1 Puma

Release Date: 9/25/2001

Key Features:

Performance Boost From 10.0, DVD Playback Support


10.2 Jaguar

Release Date: 8/23/2002

Key Features:

Bonjour, Inkwell


10.3 Panther

Release Date: 10/24/2003

Key Features:

Safari, Expose


10.4 Tiger

Release Date: 4/29/2005

Key Features:

Spotlight, Dashboard


10.5 Leopard

Release Date: 10/26/2007

Key Features:

Bootcamp, Time Machine


10.6 Snow Leopard

Release Date: 8/28/2009

Key Features:

Marketed as +0 features; instead, focused on improving existing features for compatibility and functionality


10.7 Lion

Release Date: 7/20/2011

Key Features:

Launchpad, Mac app store, Multitouch Support

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