Open Radar

 
Summary:
Running the latest Xcode 8 beta and Swift 3, if a label or button is added to a storyboard or nib and has it's font attribute set to System Font Bold in the interface builder, when that application is ran on a none iOS 10 device, the font's are not bold. Running on a iOS 10 device everything looks perfect, so this seems like a regression on previous OS versions.

However, if the font is set programmatically then it bolds correctly.

Steps to Reproduce:
1) Install Xcode 8 Beta 4
2) Open the included project 
3) Attach a device running any version of iOS 9 (including 9.3.3) and run the application.
4) The label that is setup using Interface Builder is not bold, the one set in code is.
5) Attach a device running any version of iOS 10 and run the application
6) Both labels are bold as expected

Expected Results:
Both labels should be bold on iOS 9 devices.

Actual Results:
Only labels set programmatically show bold when ran on iOS 9.

Version:
Xcode Version 8 Beta 4, OS X 11.11.6

Notes:


Configuration:
Tested using Xcode 8 Beta 4 and ran on a iPad Pro (12.8 inch one) and iPad Mini 2 both running 9.3.3. Same result