[Development] Deprecated functions / procedure of removal in Qt6?

[Christian Ehrlicher]

Hi,

there are a lot of deprecated functions in qtbase which are only marked 
as deprecated/obsolete in the documentation but don't have a 
Q_DECL_DEPRECATED. Most of them were deprecated in the pre Qt5-era. 
What's the 'correct' way to make sure they can be removed with Qt6? Must 
they marked as QT_DEPRECATED_SINCE(5,x) or is the comment in the 
documentation enough?

Thx,
Christian