Merged (all), thanks Simon.
I tried quickly on old projects and did not notice any major problems.
Of course, this is a devel version, it's time to clean up the old code a bit.
I finally managed to build the cross-compilation MXE environment with KDE Framework (KF5_VERSION 5.70) for Qt 5.15.0 (only x86_64-w64-mingw32 now for checking).
Well, is time for me to try Qt 5.15.0 under MS Windows and saw if I can provide packages with this Qt version..
https://qelectrotech.org/forum/viewtopi … 561#p10561
Edit: same font issue only for MS Windows again ... .element text "Sans Serif" fonts are blurred..

A workaround to fix this issue on MS Windows with >=Qt 5.12.0 is to replace all Sans Serif default font by MS Shell Dlg 2 in all elements and all collections XML.. Btw users need hack our XML project also and replace Sans Serif police.
https://docs.microsoft.com/en-us/window … hell-dlg-2
It's really a shame to be stuck on Qt 5.12.0 for Windows packages, and not to take advantage of the advances in the framework ..

