qml import autocompletion doesn't display the latest versions

With a project configured with Qt 5.4.1, when for example you type :

import QtQuick

Qt Creator displays the autocompletion menu, with versions 1.1, 2.0, 2.1, 2.2 and 2.3, but not 2.4 (the latest version), or 2.5 (with a project configured with Qt 5.5 beta).