The Qt Framework is developed in C++, hence it is guaranteed that it would be a cake walk for any good C++ developer. It supports CLI and GUI-based application development. At the time of writing this chapter, the latest version of the Qt application framework is Qt 5.7.0. By the time you read this book, it is possible that a different version of Qt will be available for you to download. You can download the latest version from https://www.qt.io.