Xcode 7.3.1 with iOS 10 support
I have that uploaded on Dropbox
iOS 10.0
here
iOS 10.1
here
iOS 10.2
here
iOS 10.3
here
iOS 11.0
here
iOS 11.1
here
iOS 11.2
here
iOS 11.3
here
iOS 11.4
here
iOS 12.0
here
iOS 12.1
here
iOS 12.2
here
iOS 13.0
here
iOS 13.1
here
iOS 13.5
here
iOS 13.6
here
NOTE: Swift 2.3 support is not available from Xcode 8.3 + versions
Go to your Applications -> Xcode 7.x version.
Right Click it and click on Show Package Contents and navigate to the path below :-
/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/
And paste the unzipped folder (iOS 10.0) at the path mentioned above. It will look like this.
In the Device Support Folder for Xcode 7.3.1 version you currently will be having folders upto 9.3 only. Simply paste this iOS 10 folder there.
Finally, Quit and Restart your Xcode and plug in your iOS 10 Device.