Less Love for FOSS Qt Users

From Qt 5.15, The Qt Company make their offering a bit more inconvenient for FOSS users. They announced three changes: A Qt account is mandatory to download binary Qt packages. The offline installer is not available to FOSS users any more. LTS (long-term support) releases are not available to FOSS users, once the next...

Burkhard on Qt Embedded Systems: No. 1

Welcome to episode 1 of my newsletter Burkhard on Qt Embedded Systems. My resolution for 2020 is to write this newsletter monthly – for a long long time. If you want to receive my newsletter by email at the end of each month, fill out the subscription form in the sidebar right (on mobile...

Safe-Guarding the (L)GPL Future of Qt

The little known KDE Free Qt Foundation makes sure that Qt stays free and open-source. It guarantees that all Qt modules currently licensed under LGPLv3 must continue to be available under LGPLv3 in the future. This covers all modules from Qt Essentials and many add-on modules. If The Qt Company discontinued the FOSS version...

Using Qt under LGPLv3

At Qt Day 2019 in Florence, Italy, I gave a talk Using Qt under LGPLv3. In the first part The obligations of Qt LGPLv3: made understandable, I explain in detail, how you must provide the source code, the license texts, the copyright notices, any modification notices and the installation information. You don’t have to...

Using Qt 5.6 and Later under LGPL

Up to Qt 5.3, things were pretty simple. Most modules were under LGPLv2.1 with the exception of some commercial modules. Starting with Qt 5.4, new Qt modules were published under LGPLv3 and old modules additionally under LGPLv3. With Qt 5.6, we now have quite a patchwork of modules under different licenses. Qt 5.7 will...

Scroll to top