codelab-swift-and-ios-apps-api-evolution-design-blueprint

Use when a solution needs a coherent structure before implementation or production for Software implementation and code architecture: Swift and iOS apps for API evolution. Produce a staged design blueprint with scope, versions, decisions, and evidence for this task-specific gate: Test migration from supported old and new versions with a disposable dataset and a documented recovery path. Success means interfaces, dependencies, constraints, and review points are testable before build. Use permissioned inputs, preserve a baseline, check current primary guidance, and stop when evidence, authority, rights, or safe recovery is unclear.