Разница между PyQT 5 и PyQT 6

/* Create a .pro file with this content:
QT += core gui widgets
SOURCES += main.cpp
TARGET = app
-------------------------------
Build and run commands for CMD:
> qmake -makefile
> mingw32-make
> "release/app"
*/
 
#ifdef _WIN32
#include <windows.h>
#endif
 
#include <QtGui/QMouseEvent>
#include <QtWidgets/QApplication>
#include <QtWidgets/QWidget>
 
#include <iostream>
 
class Widget : public QWidget
{
public:
    Widget()
    {
        setWindowTitle("My Title");
        std::cout << std::endl; // flush the console
    }
 
private:
    void mousePressEvent(QMouseEvent *event)
    {
        if (event->button() == Qt::MouseButton::LeftButton)
        {
            std::cout << "left" << std::endl;
            int x = event->pos().x();
            int y = event->pos().y();
            std::cout << x << " " << y << std::endl;
        }
        else if (event->button() == Qt::MouseButton::RightButton)
        {
            std::cout << "right" << std::endl;
        }
    }
};
 
int main(int argc, char *argv[])
{
#ifdef _WIN32
    if (AttachConsole(ATTACH_PARENT_PROCESS))
    {
        freopen("CONOUT$", "w", stdout);
        freopen("CONOUT$", "w", stderr);
    }
#endif
 
    QApplication app(argc, argv);
    Widget w;
    w.show();
    return app.exec();
}