swift-concurrency-6-2

Migrate Swift 5.x projects to Swift 6.2's concurrency model with @concurrent.

Updated Mar 4, 2026
One-click install
npx skills add https://github.com/Fabio29T/Everything-Claude --skill swift-concurrency-6-2-fabio29t
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: swift-concurrency-6-2
Source: https://github.com/Fabio29T/Everything-Claude/tree/main/docs/zh-CN/skills/swift-concurrency-6-2
Command: npx skills add https://github.com/Fabio29T/Everything-Claude --skill swift-concurrency-6-2-fabio29t

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps developers understand and adopt Swift 6.2's new concurrency model, which prioritizes safety by default, preventing data races and simplifying asynchronous programming.

Core Features & Use Cases

  • Default Single-Threaded Execution: Code runs on a single thread by default, eliminating common data races.
  • Explicit Background Offloading: Use @concurrent to clearly designate CPU-intensive tasks for background execution.
  • Isolated Conformance: Safely conform MainActor types to protocols.
  • Use Case: Migrating a Swift 5.x project to Swift 6.2, ensuring all asynchronous operations are safe and explicitly managed, and leveraging the new MainActor default inference for cleaner code.

Quick Start

Migrate your Swift 5.x project to Swift 6.2 by enabling the 'Approximate Concurrency' build settings in Xcode and reviewing the provided documentation.

Frequently Asked Questions about swift-concurrency-6-2

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How does Swift 6.2 concurrency prevent data races by default?

Swift 6.2 concurrency prevents data races by using default single-threaded execution, ensuring code runs safely on a single thread unless explicitly offloaded to background tasks using `@concurrent`.

How do I migrate an async Swift 5.x project to Swift 6.2?

To migrate to Swift 6.2, enable the 'Approximate Concurrency' build settings in Xcode and review the provided documentation to ensure asynchronous operations are explicitly managed and safe.

When should I use @concurrent for background tasks in Swift?

Use `@concurrent` in Swift 6.2 when you need to explicitly designate CPU-intensive tasks for background execution, keeping default single-threaded execution safe from data races.

Can I conform MainActor types to protocols safely in Swift 6.2?

Yes, Swift 6.2 supports isolated conformance, allowing you to safely conform MainActor types to protocols while maintaining the new approachable concurrency model and preventing data races.

What is the best way to handle data race errors during Swift 6.2 migration?

Handle data race errors during Swift 6.2 migration by leveraging default single-threaded execution and applying `@concurrent` to explicitly manage background task offloading for safety.