Hello everyone,
I'm encountering a frustrating issue with Xcode 26 and the iOS Simulator selection, and I'd appreciate any insight from the community.
Problem Overview I have updated my Xcode to version 26.0.
I have successfully installed the iOS 26 SDK and the iOS 26 Simulator runtime via Xcode's component settings.
However, when I open an older, existing project, the device selection dropdown menu does not list the iOS 26 simulator. I can only select older versions, such as my locally installed iOS 18.6 simulator.
Key Finding (Diagnosis) New Project Test: When I create a brand new Xcode project, the iOS 26 simulator is correctly available and runs as expected.
Conclusion: This strongly suggests the issue lies with a specific configuration setting in the existing (old) project, rather than the Xcode installation itself.
Troubleshooting Steps Taken I suspect a project-level configuration is somehow blocking the display of the new simulator. I've already checked:
General -> Deployment Target: This is set to an older version, but theoretically shouldn't hide the simulator list.
Build Settings -> Base SDK: This is set to the latest iOS SDK.
Has anyone else experienced this behavior when upgrading projects to support iOS 26?
What specific configuration files (e.g., .xcodeproj settings, Podfile configurations, or specific Build Settings) should I check to ensure my old project properly recognizes and displays the newly installed iOS 26 simulator?
Any pointers or solutions would be greatly appreciated! Thank you.