qt Use EGL instead of default GLX to manage OpenGL contexts on the desktop Add support for exceptions - like catching them inside the event loop (recommended by Nokia) Enable dev-libs/glib eventloop support Build a Qt style called GTK+ that mimics the active GTK+ theme Enable the Qt3Support libraries for Qt4. Note that this does not mean you can compile pure Qt3 programs with Qt4. Install Qt declarative private headers required by Qt-creator QmlDesigner and QmlInspector plugins" Use the alternative raster graphicssystem as default rendering engine Build the new 'trace' graphicsssytem engine which allows to record all drawing operations into a trace buffer. Later it can be replayed with the qttracereplay utility