Here is a list of (major) changes in Qt from 0.92 to 0.93. Bug-fixes, optimizations and much improved documentation, of course. There are not many changes in the API interface. Here's a list of the most important changes. QApplication: ------- setCursor(), restoreCursor() now uses a stack of cursors. quit() is now a slot. exit() replaces the old static quit() function. QColor: ------- New constructor that makes you set an RGB or HSV color directly, like this: QColor(320, 255, 240, QColor::Hsv) QObject: -------- Has now a timerEvent(), which was moved from QWidget. Compatible with old code. QPainter: --------- GC caching (internal optimization) makes drawing very fast. drawShade* obsolete, moved to qdrawutl.h and renamed to qDrawShade* - These are now global functions that take QPainter * and QColorGroup - Added qDrawWinPanel and qDrawWinButton for Windows 95 look - Added qDrawPlainRect QPixmap: ------- New fill() function that fills the pixmap with the background color OR background pixmap of a widget. QRect: ------ fixup() renamed to normalize(), returns a new QRect. QWidget: ------- New function setCaption(), setIcon() and setIconText(), moved from QWindow. New classes: ------------ QSocketNotifier, makes it possible to write async socket code. New global functions: --------------------- qInstallMsgHandler() and qRound(), in qglobal.h. moc: ---- Supports templates. Documentation: -------------- A tutorial. Template classes (QArray, QList etc.) are documented. Many more links in the examples. Postscript documentation (around 400 pages).