After 5 months in public beta testing, QT 3.0, the next incarnation of the popular multi-platform GUI Toolkit from TrollTech has been released. Qt 3.0 introduces a large number of new and powerful features: The ability to build platform- and database independent database applications, greatly improved internationalisation and font handling, rich text engine that also supports richtext input/editing in addition to rendering, Qt Designer, a full-fledged GUI builder that now supports main window development, and includes an integrated C++ editor, Qt Linguist provides easy translation of Qt GUIs to different languages, Qt Assistant eases browsing and finding information in the Qt Documentation. In addition there are numerous other improvements such as Multiple Monitor Support, HTTP network protocol support, Support for latest evolutions in GUIs, Accessibility support and 64-bit Safety. Qt 3.0 also features a new and powerful Regular Expression Engine, which greatly simplifies complex text-manipulation operations. The syntax is compatible to, and as powerful as, Perl regular expressions, while at the same time including full support for Unicode. QT 3.0 is the basis for the next KDE and while it breaks binary compatibility, it keeps source compatibility with QT 2.x.