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The Swift Programming Language
This maintains proposals for changes and user-visible enhancements to the Swift Programming Language.
CommonMark parsing and rendering library and program in C
The libdispatch Project, (a.k.a. Grand Central Dispatch), for concurrency on multicore hardware
Apple CUPS Sources
TLS Support for SwiftNIO, based on BoringSSL.
Open-source implementation of a substantial portion of the API of Apple CryptoKit suitable for use on Linux platforms.
The Darwin PThread Library (mirror)
The Darwin Kernel (mirror). This repository is a pure mirror and contributions are currently not accepted via pull-requests, please submit your contributions via https://developer.apple.com/bug-reporting/
Python Kerberos library used by CalendarServer
The Darwin Platform Library (mirror)