On Wed, 7 Apr 2021 at 22:14, Volker Hilsheimer <volker.hilshei...@qt.io> wrote:
>
> > On 7 Apr 2021, at 15:55, Allan Sandfeld Jensen <k...@carewolf.com> wrote:
> >
> > On Mittwoch, 7. April 2021 15:18:10 CEST Giuseppe D'Angelo via Development
> > wrote:
> >> Il 07/04/21 14:56, Sze Howe Koh ha scritto:
> >>> Is it acceptable to remove them during Qt 6's lifetime? Or should we
> >>> wait till Qt 7?
> >>
> >> It's for Qt 7, I'm afraid. We're bound to an API/ABI compatibility
> >> promise. And not marking things _in code_ but only in docs isn't good
> >> enough.
> >>
> >
> > We remove and change private API all the time. If it was declared
> > deprecated long ago, we could argue it is kind of private in qt6.
> >
> > 'Allan
>
> But declaring an API deprecated requires two things:
>
> * documentation marking it as obsolete
> * QT_DEPRECATED_SINCE macro usage to trigger compile time warnings
>
> QMessageBox::buttonText for instance doesn’t have said macro, and is not 
> inline, so we can’t remove it without de-facto breaking BiC in a material way 
> (since at least on Windows, the DLL found at runtime has to provide all 
> symbols that the static import library had at link time, no matter if used or 
> not).
>
>
> So, what would be not only acceptable but desirable is a bunch of changes 
> that add QT_DEPRECATED_SINCE to those methods that so far have only been 
> documented as obsolete. And perhaps even a bit of qdoc tinkering to help us 
> maintain consistency.
>
> Volker

https://bugreports.qt.io/browse/QTBUG-92480
https://bugreports.qt.io/browse/QTBUG-92481


Regards,
Sze-Howe
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