Summary
Swift 6.2 finally fixes the implicit background offloading problem that caused data races in earlier versions. Now async functions stay on the calling actor by default, so your MainActor code actually stays on the main thread unless you explicitly mark something @concurrent. The isolated conformance feature is the real unlock here: MainActor types can conform to protocols without compiler errors or unsafe workarounds. If you're migrating from 5.x or dealing with Sendable errors in 6.0/6.1, this is the new mental model. Enable MainActor default inference for app targets and only reach for @concurrent when profiling shows you actually need background execution.
Install to Claude Code
npx -y skills add affaan-m/everything-claude-code --skill swift-concurrency-6-2 --agent claude-codeInstalls into .claude/skills of the current project.
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Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →Connect Claude to +800M contacts, +150M companies. Find & Enrich leads in chat.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Categories
