WatchKit watchOS 6.0 Beta 3 to Beta 4 API Differences

WKInterfaceVolumeControl.h
Removed -[WKInterfaceVolumeControl init]
Added WKInterfaceVolumeControlOrigin
Added WKInterfaceVolumeControlOriginLocal
Added WKInterfaceVolumeControlOriginCompanion
Added -[WKInterfaceVolumeControl initWithOrigin:]