Why Xcode has so many stupid issues nowadays

Xcode 16 introduces several new features and improvements aimed at enhancing the development experience and addressing common issues. Here are some highlights from the sessions at WWDC 2024:

1. Generative Models and Code Completion:

   • Xcode 16 leverages generative models to improve code completion. The new engine is specifically trained for Swift and Apple SDKs, using project symbols to customize suggestions. This engine runs locally on your Mac, ensuring privacy and fast results, even offline. This is detailed in the Platforms State of the Union session.

2. Debugging and Diagnostics:

   • Xcode 16 includes enhanced diagnostics for main thread hangs, priority inversions, excessive disk writes, and slow app launches. These diagnostics help developers identify and prioritize issues that have the greatest impact on users. This is covered in the What’s new in Xcode 16 session.

3. Previews and Customizations:

   • Xcode Previews now use a dynamic linking architecture, reducing the need to rebuild projects when switching between previews and builds. This results in a smoother workflow. Additionally, new APIs like the previewable macro make it easier to set up and customize previews. This is discussed in the Platforms State of the Union session.

4. Concurrency Safety in Swift 6:

   • Swift 6 introduces a new language mode that provides concurrency safety guarantees, turning data races into compile-time issues. This helps improve the correctness and safety of your code. More details can be found in the What’s new in Xcode 16 session.

5. Testing and Continuous Integration:

   • Xcode 16 emphasizes the importance of testing, with features to help catch bugs before shipping. The test report shows a history of test results, and TestFlight integration allows for easy distribution to beta testers. This is elaborated in the Xcode essentials session.

These improvements aim to streamline the development process, making it easier to write, debug, and test code efficiently. If you have specific issues with Xcode, these sessions might provide insights into new tools and techniques that can help address them.