Apple - Open Source Apple's open source projects allow developers to customize and enhance key Apple software. Through the open source model, Apple engineers and the open source community collaborate to create better, faster and more reliable products for our users.
Binary distributions are available.
The Common Data Security Architecture, which forms the basis for security features in Mac OS X, is now available as open source. Apple releases Streaming Server 3.0.1 featuring quality of service improvements, web-based administration, reliable broadcasting support, and more. This release corresponds to Mac OS X 10.0. The Darwin Documentation project has been created to provide documentation for Darwin programmers. The Apple Public Source License has been updated to make it easier for people to contribute to and use the software.