Xcode 26.0 beta: Double-click in Navigator Doesn’t Open File in New Tab

Issue Report — Xcode 26.0 beta (17A5241e)

In Xcode 26.0 beta, double-clicking a file in the project navigator does not open it in a new tab as it normally should. Instead, it opens the file in the current editor window. Interestingly, Option-clicking a file still opens it in a new tab as expected.

I’ve confirmed that my Navigation preferences are properly set (see the attached screenshot), so this seems like a possible regression or bug in the current beta version.

I've noticed this as well. According to the Xcode 26 release notes, it appears to be an intentional change. Personally, I'm not a fan of this change and hope Apple brings back the option to configure this behavior in future betas.

Xcode 26.0 beta: Double-click in Navigator Doesn’t Open File in New Tab
 
 
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