Q:

boldSystemFontOfSize on iOS9 is returnning SFUIDisplay-Semibold instead of SFUIDisplay-Bold

I find that boldSystemFontOfSize is not returning bold font if using the new sanfranciso font. I am not sure if this is a bug or intended to do so.
(lldb) po [UIFont boldSystemFontOfSize:22]
<UICTFont: 0x7fadc58a9870> font-family: ".SFUIDisplay-Semibold"; font-weight: bold; font-style: normal; font-size: 22.00pt

If you add a UILabel from storyboard and set font as bold, you need to be careful, because the size may changed.

A:

I had the same issue.
The quickest fix for me was to open my xib files and replace
type="boldSystem"

with
type="system" weight="semibold"

