[Development] New KDE Free Qt Foundation agreement and changes to Qt

Knoll Lars Lars.Knoll at theqtcompany.com
Wed Jan 13 12:15:05 CET 2016

Hi everybody,

The Qt Company has over the last days signed a new and updated agreement with the KDE Free Foundation. With this new agreement come some adjustments to the open source licensing of Qt. Basically LGPLv3 will in the future be our main license for frameworks, GPLv3 for the tooling.

At the same time, The Qt Company committed to open source the currently commercial only parts of Qt for Application Development under the GPLv3 and make those available to the open source community.

I have discussed this change with many of our Maintainers over the last week, getting a lot of positive feedback to this change.

Please have a read through the blog post at 
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation for all the details.

We have already pushed the sources of Qt Charts, Qt Data Visualisation and the Qt virtual keyboard to codereview, and you can pull the code from there. I would personally like to see most of these things integrated into the Qt 5.7 open source packages already, and minimise the feature delta between the OSS and commercial versions of Qt for Application Development.


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