Qt 5.5 will be shipped soon and here is a lit of the new features:
- Qt 3D
- The Qt 3D module is now included as a technology preview.
- Qt Canvas 3D
- Qt Multimedia
- GStreamer 1.0 support. Note that the default is still 0.10. 1.0 support can be enabled by configuring Qt with ‘-gstreamer 1.0’.