Lost behavior between KDE 4.1.3.1 and 5.5.5

[René J.V. Bertin]

>	Perhaps.  The Trinity folks are talking about porting up to Qt5, and to be 
>honest, I haven't found anything important that's not working.

Even with Qt4 there are already things that no longer work ... properly, even under X11, because it is no longer being maintained. QtWebKit 4.x hasn't seen any security updates for quite a while AFAIK, to give just one example, and I expect that Konqueror4 will have rendering issues with an increasing number of sites. That may be a moot point when you use Firefox or a Chromium-based browser, but QtWebKit is also used in KMail for instance.