[Interest] My experience porting to Qt5 (on OS X)

[Stephen Chu]

The issue I find most problematic is this:
<https://bugreports.qt-project.org/browse/QTBUG-26598>

It interrupt the flow of tabbing through the fields and cause some 
submitting issues when using QDataWidgetMapper.

Also I get this message every time a QComboBox is clicked:

void QWidgetPrivate::setMask_sys(const QRegion &): Not supported on cocoa.

I don't know what it means nor if it's bad at all. :)