Swift Concurrency

This skill covers Swift's modern concurrency features from Swift 5.5 through Swift 6, including async/await, structured concurrency, actors, and Swift 6's strict data-race safety.

Overview

Swift's modern concurrency model provides a safer, more intuitive way to write asynchronous code. Swift 6 takes this further with compile-time data-race safety, turning potential concurrency bugs into compiler errors.

Available References

Swift 6 & Strict Concurrency

• Swift 6 Strict Mode - Complete concurrency checking, data race prevention
• Sendable Protocol - Sendable conformance, @Sendable closures, thread safety
• Isolation & Actors - @MainActor, global actors, region-based isolation

Core Concurrency

• Async/Await - Asynchronous functions, Task, TaskGroup, Actor basics

Swift 6 Highlights