Apple is clearly signaling that Swift isn't just for UI anymore; it's a world-class systems language.
This is a major milestone for Swift. With the introduction of , Apple is bridging the gap between Swift’s "safe-by-default" philosophy and the high-performance requirements of systems programming.
At its core, the new Atomics library provides types that allow multiple threads to read and write to the same memory location without using traditional locks (like NSLock or DispatchSemaphore ).