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Apple releases OS X 10.11 El Capitan Open Source Darwin code

As it’s done with past releases, Apple today released the open source code of OS X 10.11 El Capitan. The release comes after Apple made good on its promise to open source its Swift programming language last week.

Apple updated its Open Source webpage last night, where it also provides downloads to open source code for current and past releases of its developer tools, iOS, and OS X Server, with downloads of the OS X 10.11 source code for developers interested in taking a look.

Apple’s open source release of OS X (aka Darwin) has been around since 2000 and usually arrives in the weeks following the public release of OS X. 

Darwin is an open sourceUnix-like computer operating system released by Apple Inc. in 2000. It is composed of code developed by Apple, as well as code derived from NeXTSTEP,BSD, and other free software projects.

Darwin forms the core set of components upon which OS X and iOS are based. It is mostlyPOSIX compatible, but has never, by itself, been certified as being compatible with any version of POSIX. (OS X, since Leopard, has been certified as compatible with the Single UNIX Specification version 3 (SUSv3).

The open source code comes as the latest release of OS X, 10.11.2, hit the Mac App Store earlier today. Read more about Apple’s history of open sourcing here.

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Comments

  1. srgmac - 8 years ago

    Darwin…not el capitan OS X…Big diff!

  2. gh0stpupp3t - 8 years ago

    I’m getting a Macbook soon! :D It will have snow leopard on it. :)

  3. Steve Lawrence - 8 years ago

    I don’t know where else to post this but… I hate that on the new site layout you’re browsing the latest stories, you expand it to read the full thing, and then click on ‘comments’ to view the comments. The next story if you scroll past the comments is no longer the next most-recent post, but the next most-recent post in the category of the story you were reading before. For example, if you are reading these comments and you scroll past them to the next story, you are in the ‘IOS DEVICES’ feed. Why?

    • jmcejuela - 8 years ago

      +100000 — I love 9to5Mac’s content, but find its navigation utterly confusing !!!

    • Adalberto Taylor - 8 years ago

      Far worse than that is the fact that you can’t use Safari’s reader to improve readability of the content.

Author

Avatar for Jordan Kahn Jordan Kahn

Jordan writes about all things Apple as Senior Editor of 9to5Mac, & contributes to 9to5Google, 9to5Toys, & Electrek.co. He also co-authors 9to5Mac’s Logic Pros series.