Sonoma 14.4 added support for exclaves and conclaves, which are used in Sequoia’s virtual machines. What is an exclave, and what does it add?
XNU
Making their appearance for the first time in macOS 14.4 are Agatha Christie’s detective Hercule Poirot, branches from nerve cells, and isolated fragments of states. What can they be?
So is macOS slowly merging with iOS, and are our Macs going to be locked down, so they can only run notarized apps?
How the kernel relies on its extensions to make your Mac work, and has highest privilege for stability and security. How this must change for Apple Silicon.
Adds details of the sequence of screens displayed at each stage, to help diagnose boot problems.
Single-diagram summary of how a modern Mac starts up in macOS 10.12 or 10.13, from pressing the Power button to running the kernel.
How macOS gets to load a hefty kernel and over 300 extensions so quickly: it cheats with a pre-linked kernelcache. And why you don’t see extensions loading in the log.
The Eclectic Light Company 