What's new in Xcode 10 beta 6?

Interface Builder

  • The exception "Impossible to set up layout with view hierarchy unprepared for constraint." has improved diagnostics.
  • Scrolling performance, especially in very large storyboards, is improved.
  • Control-dragging from Interface Builder to a Swift source file defaults to creating @IBOutlet when the insertion point is above the first method in a class, and @IBAction otherwise.
  • Discouraged uses of Vibrant Light and Vibrant Dark appearance are now reported. NSPopover and NSVisualEffectView are exempted.

Source Editor

  • Xcode no longer allows creating discontiguous selections using the command modifier key. To create discontiguous selections, hold control+shift during the selection.


  • When running tests from xcodebuild or Xcode Server with iOS Simulator destinations, test failures will result in the collection of log archives embedded in the test action result bundle.

Read all about What's new in Xcode 10?

Release Notes

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