I see this in c:\Qt\4.8.4\tools\designer\src\components\propertyeditor\propertyeditor.cpp
@
#if QT_VERSION >= 0x04FF00
configureMenu->addSeparator();
configureMenu->addAction(m_treeAction);
configureMenu->addAction(m_buttonAction);
#endif
@
0x04FF00 will be a new vesion??