OS X Yosemite Developer Preview 6のダウンロード
ダウンロード:
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概要：
OS X Yosemite is every bit as powerful as it looks. You now have more power to extend the OS X experience, and with the new Swift programming language, app creation is more fun and interactive. With advances in SpriteKit and SceneKit, Safari, iCloud, and more, your most beautiful apps are yet to come.