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.

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.

FTC: We use income earning auto affiliate links. More.

Check out 9to5Mac on YouTube for more Apple news: