Xcode 5.0.1が来てたので、ソフトウェア・アップデート経由でインストールしました。
Includes SDKs for OS X 10.9 Mavericks, OS X 10.8 Mountain Lion, and iOS 7.
New features for OS X Mavericks:
- Continuous integration bots build and test your iOS and OS X apps on OS X Server.
- Source Control menu creates new remote Git repositories on Mac servers.
- Debug Gauge for energy yse displays a live graph of your app’s power consumption.