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swift-concurrency-6-2

Swift 6.2 Approachable Concurrency — single-threaded by default, @concurrent for explicit background offloading, isolated conformances for main actor types.

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# Swift 6.2 Approachable Concurrency

Patterns for adopting Swift 6.2's concurrency model where code runs single-threaded by default and concurrency is introduced explicitly. Eliminates common data-race errors without sacrificing performance.

## When to Activate

- Migrating Swift 5.x or 6.0/6.1 projects to Swift 6.2
- Resolving data-race safety compiler errors
- Designing MainActor-based app architecture
- Offloading CPU-intensive work to background threads
- Implementing protocol conformances on MainActor-isolated types
- Enabling Approachable Concurrency build settings in Xcode 26

## Core Problem: Implicit Background Offloading