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Here is the link to get the Xcode (5.1.1) dmg for OSX 10.8 and 10.9.
For OSX 10.7 you can use Xcode (4.6.2) dmg
For Yosemite (OSX 10.10) we strongly recommend Xcode 6.3.1.
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Here is the link to get the Xcode (5.1.1) dmg for OSX 10.8 and 10.9.
For OSX 10.7 you can use Xcode (4.6.2) dmg
For Yosemite (OSX 10.10) we strongly recommend Xcode 6.3.1.
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