At WWDC 2024, Apple announced several updates to Xcode 16 and App Store Connect that will impact mobile developers. Xcode 16 introduces enhanced code editing features, including predictive code completion and Swift 6 integration, as well as improved build systems and advanced debugging tools. Additionally, the new version includes a GitHub Copilot-like feature called Swift Assist and a RealityKit debugger for AR and VR applications. App Store Connect also received several updates, including enhanced app submission processes, tester management features, and new APIs for subscriptions, pricing, and marketing. These changes are expected to have a significant impact on mobile developers' ability to create and distribute successful apps in the Apple ecosystem.