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Released
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Version
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Codename
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Comment
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3/24/01
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|
Mac OS X 10.0
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Cheetah
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Original Version of OS X. Prior version was OS 9.
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|
9/25/01
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|
Mac OS X 10.1
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Puma
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Released as a free upgrade from 10.0 with many improvements.
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| |
|
8/24/02
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|
Mac OS X 10.2
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|
Jaguar
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|
Additional improvements in speed, stability, and graphics.
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| |
|
10/24/03
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|
Mac OS X 10.3
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|
Panther
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|
Updated user interface and Finder. Introduction of Safari as the default browser. Discontinued support for some older models.
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| |
|
4/29/05
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|
Mac OS X 10.4
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Tiger
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|
Introduction of numerous features and upgrades including Safari 2, Spotlight, and Dashboard among many others. Support for Intel-based Macs with the 10.4.4 upgrade.
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| |
|
10/26/07
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|
Mac OS X 10.5
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|
Leopard
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|
New features including Time Machine and Boot Camp. Support for 64-bit applications. Support for Classic Environment dropped.
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| |
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8/28/09
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|
Mac OS X 10.6
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|
Snow Leopard
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|
Focus on improved performance. Native support for PowerPC applications dropped. Support for Intel processors only.
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| |
|
7/20/11
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|
Mac OS X 10.7
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|
Lion
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|
Introduction of Launchpad based on the iOS interface. Ability to run PowerPC applications totally discontinued with removal of Rosetta support.
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| |
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7/25/12
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|
OS X 10.8
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Mountain Lion
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|
Adds features originating with iOS. iChat replaced with Messages which includes support for iMessage and Face Time.
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