QT is no longer applying fixes to the open-source versions of the LTS branches. https://lists.qt-project.org/pipermail/development/2021-January/040798.html open-core (new features being proprietary) is one thing, but it seems surprising to make security fixes proprietary. I remember the QT/GTK kerfluffle with gnome and kde long ago, where the gnome people were concerned about QT not really being Free Software and thinking it best not to use it. It seems they were right :-( It seems obvious that there might be a Free maintenance fork, but not much else is obvious. I'm curious if anyone knows anything concrete.
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