WebKit macOS 10.14 to 10.15 API Differences

DOMMouseEvent.h
Declaration
From@property (readonly) unsigned short button
To@property (readonly) short button

NSAttributedString.h
Added NSAttributedString (NSAttributedStringWebKitAdditions)
WKError.h
WKFoundation.h
Removed #def WK_API_ENABLED
WKNavigation.h
WKNavigationDelegate.h
WKPreferences.h
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedJava is no longer supported

AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedPlug-ins are no longer supported

WKSnapshotConfiguration.h
WKWebpagePreferences.h
WKWebViewConfiguration.h