Apple releases ARM-ready source code for XNU kernels found in iOS and macOS

Apple has released ARM-ready source code for the XNU kernels found in iOS and macOS, “marking a first for iOS, and possibly showing off some of the groundwork for Macs with ARM-based processors,” reports AppleInsider. The code is available through a GitHub repository.

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XNU is the computer operating system kernel developed and used by Apple in macOS. It’s been released as free and open-source software as part of the Darwin operating system. XNU is also used as the kernel for the iOS, tvOS, and watchOS operating systems.

In computing, the 'kernel' is the central component of most computer operating systems; it is a bridge between applications and the actual data processing done at the hardware level. The kernel's responsibilities include managing the system's resources (the communication between hardware and software components).