Are upstream even aware of that yet?
(In reply to Andreas Sturmlechner from comment #0) > Are upstream even aware of that yet? We were generally aware of the Qt5->Qt6 transition period, at least me not of concrete timelines before Matt reached out to us; thank you! We're mostly a bit strapped for resources on the GUI code side of things. Lotsa signal processing folks, not as many GUI developers. You can generally notice that by the, hm, sharper edges around our gr-qtgui component, which is what is affected by that. So, if you happen to know any people that could help us assess the effort of simply going in and replacing Qt5 with Qt6 in gnuradio/gr-qtgui, that would definitely help us come up with some resemblance of a plan on how to proceed. I'll be honest, current gr-qtgui is not in the best shape code-wise, and any work on it feels a lot like it might be more productively spent on a rewrite.