IOBluetooth macOS 10.13 to 10.14 API Differences

BluetoothAssignedNumbers.h

Added kBluetoothSDPUUID16ATT

Added kBluetoothSDPUUID16ServiceClassGATT

objc/IOBluetoothL2CAPChannel.h

Added -[IOBluetoothL2CAPChannel writeAsyncTrap:length:refcon:]