Connections View generates deprecated QML code

import QtQuick 2.12
import untitled 1.0
import QtQuick.Controls 2.0

Rectangle {
    width: Constants.width
    height: Constants.height

    color: Constants.backgroundColor

    Text {
        text: qsTr("Hello untitled")
        anchors.centerIn: parent
        font.family: Constants.font.family
    }

    Slider {
        id: slider
        value: 0.5

        Connections {
            target: slider
            onMoved: console.log("clicked")
        }
    }
}