Trolltech Licenses Qt Under GNU General Public License v3

Trolltech ASA is licensing its Qt cross-platform development framework under the GNU General Public License version 3 (GPL v3), with immediate effect. Qt is already available under the GPL v2 and will continue to be so in addition to the GPL v3. The GPL v3 license will make it easy and safe for free software developers to use Trolltech’s Qt with the most recent license framework from the Free Software Foundation. Trolltech hopes that its move will inspire free software projects to use GPL v3 when programming with Qt.

The move to GPL v3 licensing reinforces Trolltech’s strong tradition of giving developers the liberty to create and share software in accordance with the “four freedoms” defined by the Free Software Foundation.

“We decided to add GPL v3 licensing after consulting with both KDE e.V. and the Free Software Foundation,” explained Eirik Chambe-Eng, co-founder of Trolltech. “I first read the GNU Manifesto from the Free Software Foundation back in 1987 and it forever shaped the way I viewed software. We at Trolltech are proud to continue serving the free software community by allowing software developers to choose which GPL version they want to use.”

“I am very pleased that Trolltech has decided to make Qt available under GPL v3,” commented Richard Stallman, author of the GPL and president of The Free Software Foundation. “This will allow parts of KDE to adopt GPL v3, too. Even better, Trolltech has made provisions for a smooth migration to future GPL versions if it approves of them.”

According to Chambe-Eng, Trolltech owes much to free software developers. Free software developers provide high quality feedback and suggestions for improving Qt, ensuring that Trolltech can deliver high-quality developer tools to the market faster.

About the Free Software Foundation
The Free Software Foundation (FSF), established in 1985, is dedicated to promoting computer users’ rights to use, study, copy, modify, and redistribute modified computer programs. The FSF promotes the development and use of free software, particularly the GNU operating system, used widely in its GNU/ Linux variant. The FSF maintains the Free Software Definition. You can read more about free software at

About KDE
KDE (K Desktop Environment) is a free software project which aims to be a powerful system for an easy-to-use desktop environment. The goal of the project is to provide basic desktop functions and applications for daily needs as well as tools and documentation for developers to write stand-alone applications for the system. In this regard the KDE project serves as an umbrella project for many standalone applications and smaller projects that are based on KDE technology, such as KOffice, KDevelop, Amarok, K3b and many more.

About Qt®
Qt is a high-performance, cross-platform application development framework. It includes a C++ class library and tools for cross-platform development and internationalization.

About Trolltech
Trolltech® creates application development platforms for desktop and mobile device innovation. Trolltech’s software increases the appeal of our customer’s desktop applications and devices while reducing their risks and software development costs. Trolltech’s technologies accelerate the evolution of software by unleashing the creative power of the developer. Trolltech software is the foundation for thousands of leading products worldwide, many from Global 2000 companies. Trolltech is a second-generation free software company, with a dual licensing business model that supports free software values and methodology in a profitable, sustainable business. The company is listed on the Oslo Stock Exchange under the ticker symbol TROLL.

Trolltech, Qt and Qtopia are registered trademarks of Trolltech ASA.