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Generated on 3/5/2025
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It seems like you're interested in the topic of "cold start" or "app launch performance." At WWDC, there were several sessions that touched on improving app launch times and diagnosing performance issues.
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What’s new in Xcode 16: This session discusses tools like Instruments and the new flame graph feature, which can help diagnose performance problems, including slow app launches. You can learn more about these tools in the What's new in Instruments chapter.
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Xcode essentials: This session highlights the importance of efficient debugging and testing, which can indirectly affect app launch performance. The Explore the Organizer chapter discusses how to use the Organizer to analyze app performance, including launch times.
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Migrate your app to Swift 6: This session explains how Swift's lazy initialization of global variables can improve launch times by avoiding unnecessary work at startup. This is covered in the Shared mutable state in global variables chapter.
These sessions provide insights and tools to help diagnose and improve app launch performance, which is crucial for a better user experience.
Meet the next generation of CarPlay architecture
Dive into the architecture for the next generation of CarPlay. Learn how your vehicle system works with iPhone to create a single cohesive experience that showcases the best of your car and iPhone. Learn how UI is rendered and composited, and explore ways to configure and customize a special experience for each vehicle model. This session is intended for automakers and system developers interested in the next generation of CarPlay.
Run, Break, Inspect: Explore effective debugging in LLDB
Learn how to use LLDB to explore and debug codebases. We’ll show you how to make the most of crashlogs and backtraces, and how to supercharge breakpoints with actions and complex stop conditions. We’ll also explore how the “p” command and the latest features in Swift 6 can enhance your debugging experience.
What’s new in location authorization
Location authorization is turning 2.0. Learn about new recommendations and techniques to get the authorization you need, and a new system of diagnostics that can let you know when an authorization goal can’t be met.
Migrate your app to Swift 6
Experience Swift 6 migration in action as we update an existing sample app. Learn how to migrate incrementally, module by module, and how the compiler helps you identify code that’s at risk of data races. Discover different techniques for ensuring clear isolation boundaries and eliminating concurrent access to shared mutable state.
What’s new in Xcode 16
Discover the latest productivity and performance improvements in Xcode 16. Learn about enhancements to code completion, diagnostics, and Xcode Previews. Find out more about updates in builds and explore improvements in debugging and Instruments.
Xcode essentials
Edit, debug, commit, repeat. Explore the suite of tools in Xcode that help you iterate quickly when developing apps. Discover tips and tricks to help optimize and boost your development workflow.