FOSS Qt Releases Delayed by up to 12 Months?

On 8 April 2020, Olaf Schmidt-Wischhöfer wrote in an email to the KDE community (emphasis mine): […] last week, [The Qt Company] suddenly informed both the KDE e.V. board and the KDE Free QT Foundation that the economic outlook caused by the Corona virus puts more pressure on them to increase short-term revenue. As a...

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 minor...

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 of...

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 provide...

Third-Party Certification of FOSS Compliance

In my post Seminar “Open-Source Management in Software Supply Chains” five weeks ago, I wrote that the “TÜV is working on […] an external certification but it is not ready yet.” TÜV Süd was busy and became the first third-party authority to certify OpenChain compliance. TÜV Süd certified Hitachi that they have a process in...

Proposed IoT Security Bill Could Be Boon to LGPLv3 Software

US senators proposed bipartisan (yes, it’s still possible!) legislation to improve cyber security of IoT devices, the Internet of Things Cyber Security Improvement Act of 2017. Vendors selling Internet-connected devices to the federal goverment must ensure that their devices are patchable, rely on standard network protocols, do not use hard-coded passwords, and do not contain...

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 drop...

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