Xcode26的改動

Asked on 06/12/2025

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Xcode 26 introduces several significant updates and improvements:

  1. Debugging Enhancements: Xcode 26 makes debugging Swift concurrency code easier by allowing you to follow execution into asynchronous functions, even if it requires switching threads. The debugger UI now shows task IDs, making it easier to see properties like priority and child tasks (What’s new in Xcode).

  2. UI Testing Improvements: The UI testing feature has been significantly upgraded with a new code generation system for UI Automation Recording. This makes it easier to implement UI tests by recording interactions and generating the necessary code (What’s new in Xcode).

  3. Build System Updates: Xcode 26 enables explicitly built modules for Swift code by default, improving build efficiency and reliability. This change optimizes the build pipeline by separating the processing of each compilation unit into scanning, building modules, and building the original source code (What’s new in Xcode).

  4. Workspace and Editing Enhancements: The behavior of editor tabs has been improved to be more intuitive, similar to Safari. A new search mode called Multiple Word Search helps find clusters of words in your project, enhancing code navigation (What’s new in Xcode).

  5. Optimizations: Xcode 26 is 24% smaller, with simulator runtimes no longer containing Intel support by default. The metal toolchain is only downloaded if needed, and text input latency has been improved (What’s new in Xcode).

These updates aim to enhance developer productivity and streamline the app development process.

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What’s new in Xcode

What’s new in Xcode

Discover the latest productivity and performance advancements in Xcode 26. Learn how to leverage large language models in your development workflow. Explore editing and debugging enhancements, improved performance and testing tools, and Swift Build - the open-source build system engine used by Xcode.