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Here are some key features and tips from the "Xcode essentials" session at WWDC 2024:

1. Bookmarks and Mark Comments:

   • Bookmarks: Right-click anywhere in the editor to add a bookmark to a line. They help manage tasks privately and can be checked off in the bookmarks navigator.
   • Mark Comments: Add mark comments to your file to act as section titles. They appear in the minimap and the editor content jump bar. Xcode essentials

2. Error Annotations and Fixits:

   • Xcode annotates lines with warnings or errors. These annotations are interactive; click to see more information or apply suggested fixes (fixits). Xcode essentials

3. Debugging Enhancements:

   • Full Backtraces: Xcode 16 allows you to see full backtraces in the editor, providing an overview of how you got to a certain point in your code. Activate this in the debug bar.
   • OSLog: Instead of print statements, use OSLog for structured logging. It provides debug levels for messages and allows you to filter and jump to the source line of log messages. Xcode essentials

4. Text Movement and Multi-Cursor Editing:

   • Use various key commands for efficient text movement, such as Option + Arrow keys to move by word and Control + Arrow keys to move by sub-word.
   • Multi-cursor editing: Hold Control + Shift and click to insert multiple cursors for creating repetitive statements. Xcode essentials

5. Vim and Emacs Mode:

   • Xcode supports Vim mode, including Vim's repeat command for multi-cursor editing.
   • It also supports basic Emacs commands like Control + A, E, P, and N. Xcode essentials

6. Git Integration:

   • Use "Show last change for line" to get an overview of the commit for a specific line, similar to a focused version of blame. Xcode essentials

Relevant Sessions

• Xcode essentials
• Run, Break, Inspect: Explore effective debugging in LLDB
• What’s new in SwiftData

Feel free to ask if you need more specific details or timestamps!