BREAKING CHANGE: UIButton now uses XAML behind the scenes

[ArnOmsft]

With this month’s release comes a change to UIButton: we have replaced the previous custom implementation of UIButton with one that uses XAML controls behind the scenes. This change might not be fully transparent for any app that’s using the current implementation since the new implementation does not currently support some properties that were previously supported.
Here is a summary of what comes with this new implementation compared to what’s available today*:

Feature	Current Implementation	New Implementation
adjustsImageWhenDisabled	No	No
adjustsImageWhenHighlighted	No	No
- attributedTitle:forState	No	No
- backgroundImageForState:	Yes	Yes
- backgroundRectForBounds:	No	No
buttonType	Yes	No
+ buttonWithType:	Yes	Caveat
contentEdgeInsets	Yes	Yes
- contentRectForBounds:	Yes	Yes
currentAttributedTitle	No	No
currentBackgroundImage	Yes	Yes
currentImage	Yes	Yes
currentTitle	Yes	Yes
currentTitleColor	Yes	Yes
currentTitleShadowColor	No	No
font	Yes	Yes
imageEdgeInsets	Yes	Yes
- imageForState:	Yes	Yes
- imageRectForContentRect:	Yes	Yes
imageView	Yes	Caveat
lineBreakMode	No	No
reversesTitleShadowWhenHighlighted	No	No
- setAttributedTitle:forState	No	No
- setBackgroundImage:forState	Yes	Yes
- setImage:forState:	Yes	Yes
- setTitle:forState:	Yes	Yes
- setTitleColor:forState:	Yes	Yes
- setTitleShadowColor:forState:	No	No
showsTouchWhenHighlighted	No	No
tintColor	No	No
- titleColorForState:	Yes	Yes
titleEdgeInsets	Yes	Yes
- titleForState:	Yes	Yes
titleLabel	Yes	Caveat
- titleRectForContentRect:	Yes	Yes
- titleShadowColorForState:	No	No
titleShadowOffset	No	No
touchesBegan:withEvent:	Yes	Yes
touchesCancelled:withEvent:	Yes	Yes
touchesEnded:withEvent:	Yes	Yes
touchesMoved:withEvent:	Yes	Yes

* For the one marked as caveat, you can find details about what's not supported in the code itself