Neal Gompa wrote:
The only exception I'm aware of is the KDE Free Qt exception: https://kde.org/community/whatiskde/kdefreeqtfoundation/
This exception governs how the license is actually governed, rather than how it's executed, though I believe that's where the current license stanza comes from.
Some Qt code (as far as I know, some or all of the tools that are GPL/commercial-only, not LGPL) use this GPL exception: https://invent.kde.org/qt/qt/qtbase/-/blob/dev/LICENSE.GPL3-EXCEPT
License exception use used to be more widespread before the LGPL option was introduced. Nowadays, Qt mostly relies on standard GPL and/or LGPL licenses.
Kevin Kofler