I get the following 'Attribute Unavailable' warning when I turn on 'Scroll Edge' for a tab bar in the Interface Builder in XCode 13.0. Tab Bar Scroll Edge Appearance before iOS 15.0 I have my target set to iOS 12.1, and I understand that this option is not available in these past versions. However all works ok in previous versions of iOS, and the setting gets ignored as you would hope/expect. What is the recommended way of dealing with warnings like these, considering you can't turn off individual warnings in XIB files?