Changes

: A handler to trigger when GATT services on the remote LE device have been added, removed, or modified. Access to property [[B2G/Bluetooth/WebBluetooth-v2/BluetoothGatt#services|gatt.services]] in this event handler would get the updated list. See BT4.1 3.G.2.5.2 and 3.G.7.1 for detailed information.