LGPL_3_ , you mean
Qt was already only available through LGPL3 (and GPL2) at that version. But they can't use GPL2 because their UI is closed source, or at least I can't find it there. So it is LGPL3.
Otherwise Jolla would also be able to "upgrade" their Qt.
Shall we sue?

I am not sure if they are trying to avoid GPL3 software (and failing), or they are just using very very old versions overall.

I had a quick look at orange.fr and they are not using GPL3 either; however they ship ( https://opensource.orange.com/en/sof...fware/livebox/ ) the full build instructions, so it looks like they tried to comply. However, I am not sure if I can flash any firmware on the Livebox; from the webUI I can only see self-update.

In any case, fair enough. We have another example of GPL3-avoiding companies. So far: Apple, Jolla, car companies, big Telcos.