CoreText iOS xcode9 beta2

#CoreText.framework

diff -ruN /Applications/Xcode9-beta1.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/CoreText.framework/Headers/CTFont.h /Applications/Xcode9-beta2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/CoreText.framework/Headers/CTFont.h
--- /Applications/Xcode9-beta1.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/CoreText.framework/Headers/CTFont.h	2017-05-19 22:58:11.000000000 -0400
+++ /Applications/Xcode9-beta2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/CoreText.framework/Headers/CTFont.h	2017-06-12 01:08:46.000000000 -0400
@@ -1015,6 +1015,12 @@
     @discussion This key is used with a variation axis dictionary to get the localized variation axis name.
 */
 CT_EXPORT const CFStringRef kCTFontVariationAxisNameKey CT_AVAILABLE(macos(10.5), ios(3.2), watchos(2.0), tvos(9.0));
+/*!
+    @defined    kCTFontVariationAxisHiddenKey
+    @abstract   Key to get the hidden axis flag.
+    @discussion This key contains a CFBoolean value that is true when the font designer recommends the axis not be exposed directly to end users in application interfaces.
+*/
+CT_EXPORT const CFStringRef kCTFontVariationAxisHiddenKey CT_AVAILABLE(macos(10.13), ios(11.0), watchos(4.0), tvos(11.0));
 
 /*!
     @function   CTFontCopyVariationAxes