Changes 4.7.3:
QtNetwork
- SSL
* [QTBUG-18338] blacklist fraudulent SSL certificates

Qt for Symbian
- Bearer Management
* [QTBUG-15108] Deadlock between SymbianEngine mutex and
QNetworkConfigurationPrivate mutex in the symbian bearer code
* [QTBUG-17627] qnetworksession.h Q_DECLARE_METATYPE breaks building
QtMobility QtBearer depending applications

- GraphicsView
* [QTBUG-17966] Major regression in QGraphicsView OpenVG backend
- Declarative
* [QTBUG-17503] Export qml debugging symbols on Symbian
- Widgets
* [QTBUG-17786] BC between Qt 4.7.3 and 4.6.3 QTreeView::indexRowSizeHint
doesn't return correct value on Symbian for row when QPushButton widget is
inserted in the treeview
* [QTBUG-4953] QMessageBox can not be closed/dismissed on touch phones if any
widget is fullscreen
- Painting
* [QTBUG-17907] tst_QGraphicsTransform::rotation3d test case from
tests/auto/qgraphicstransfor is failed for some rotation angle on
Symbian^3 devices
* [QTBUG-18154] Symbian's QPixmap::logicalDpi[X\Y]() incorrectly
returns MAXINT

(adam)