AppKit macOS 10.13 Beta 2 to Beta 3 API Differences

NSComboBox.h
Modified NSComboBox.dataSource
Declaration
From@property (weak, nullable) id<NSComboBoxDataSource> dataSource
To@property (assign, nullable) id<NSComboBoxDataSource> dataSource

NSImage.h
Added NSImageNameTouchBarRemoveTemplate
NSLevelIndicator.h
Added NSLevelIndicator.editable
NSPasteboard.h
Added NSPasteboardTypeURL
Added NSPasteboardTypeFileURL