![160623 xcode 4 dev 4](https://cdn.statically.io/img/images.macrumors.com/t/nHFC1I3ERRggakl26ifHo8vl1lk=/400x0/article/2010/10/14/160623-xcode_4_dev_4.jpg?lossy)
MacStories reports that Apple has seeded a fourth developer preview version of Xcode 4, the company's development environment for the Mac and iOS platforms, to registered Mac developers.
This is a pre-release version of Xcode 4, a major new release of Xcode for both Mac and iOS development. This release requires Mac OS X 10.6 Snow Leopard, and includes the iOS SDK 4.1, to develop apps for Mac, iPhone, and iPad. Please review the Release Notes and Readme before installing this software.
Xcode 4 was initially introduced to developers at Apple's Worldwide Developers Conference in June. It brings a number of enhancements including a new single-window interface and several new and improved tools for creating applications for Apple's computers and mobile devices.