Swift 6 Paradigm Shift Guide

## What problem does it solve? Swift 6 introduces a rigorous ownership and concurrency model that eliminates data races and runtime memory safety gaps, enabling safer systems programming across devices.

## Core Features & Use Cases

• Ownership and Noncopyable types (~Copyable) with consuming, borrowing, and inout to model resource lifetimes.
• Actor-based isolation, Sendable and RBI for safe data transfer across concurrency boundaries.
• Typed Throws and Primary Associated Types to improve type safety and generic design.
• Use Case: developing embedded Swift, cross-platform services, and high-assurance systems software.

### Quick Start Install Swift 6 toolchain and run a minimal sample demonstrating an actor receiving a sending object and processing it without leaking ownership.