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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\page opensourceedition.html
\title Open Source Versions of Qt
\ingroup licensing
\brief Information about the license and features of the Open Source Edition.
Free (or open source) software is software that comes with a license
that gives users certain rights. In particular the right to use the
software, to modify it, to obtain its source, and to pass it on (under
the same terms). Notice that the term "free" is about rights, not
money. The Free Software Foundation (creators of the GNU GPL) speaks
of free in this context as in "free speech", not as in "no cost".
Qt Software supports the free software concept by providing the Qt Open Source
Edition, which is licensed under the \l{GNU General Public License (GPL)}
(version 3) and the \l{GNU Lesser General Public License (LGPL)} (version 2.1).
You can use this edition of Qt to create and distribute software with licenses
that are compatible to these free software licenses.
The support of open source with the Open Source Versions of Qt has enabled large
successful software projects like KDE to thrive, with thousands of developers
around the world using open source versions of Qt at no cost to themselves. With
the release of Qt 4, open source versions of Qt became available for Unix/X11,
Mac OS X, and Windows platforms.
The Open Source Edition can be downloaded from the \l{Downloads}{Qt website}.
Please refer to the online \l{License FAQ} for answers to frequently asked
questions on open source licensing and its implications.
More information on Free and Open Source software is available online:
\list
\o GNU GPL: \l http://www.gnu.org/.
\o Open Source licensing: \l http://www.opensource.org/.
\endlist
See \l{Licensing Information} for a collection of documents about licenses
used in Qt.
Information about Qt Commercial License Agreements is available
in the \l{Qt Licensing Overview} on the Qt website or by email
from \l{mailto:qt-sales@nokia.com}{qt-sales@nokia.com}.
If you are in doubt what edition of Qt is right for your project,
please contact
\l{mailto:qt-info@nokia.com}{qt-info@nokia.com}.
*/
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