List all Swift 6 concurrency concepts

Swift 6 introduces several concurrency concepts that enhance the language's ability to handle concurrent programming safely and efficiently. Here are the key concepts related to concurrency in Swift 6:

1. Tasks: The fundamental unit of concurrency in Swift, representing an independent concurrent execution context. Tasks are lightweight and can be created in large numbers. They can be awaited for completion or canceled if their work becomes unnecessary.

2. Async/Await: A feature that allows asynchronous operations to be written in a way that resembles synchronous code, making it easier to read and maintain.

3. Actors: A mechanism for protecting mutable state and ensuring data isolation. Actors help prevent data races by serializing access to their mutable state.

4. Data Race Safety: Swift 6 achieves data race safety by default, turning potential data race issues into compile-time errors. This significantly improves the security and reliability of applications.

5. Sendable: A protocol that ensures safe data sharing between concurrent contexts. It helps in maintaining data isolation by marking types that can be safely transferred across concurrency boundaries.

6. Low-Level Synchronization Primitives: Swift 6 introduces a synchronization module that includes atomics, which are generic over any type and provide an efficient, lock-free implementation on the platform.

These concepts are designed to make concurrent programming in Swift safer and more efficient, reducing the likelihood of data races and other concurrency-related issues.

For more detailed exploration of these concepts, you can refer to the sessions:

• A Swift Tour: Explore Swift’s features and design (18:33)
• What’s new in Swift (26:07)
• Migrate your app to Swift 6 (03:20)