[Development] Deprecation/removal model going into Qt 6

[Manuel Bergler]

Am Mo., 3. Juni 2019 um 01:20 Uhr schrieb Konstantin Tokarev
<annulen at yandex.ru>:

> 03.06.2019, 02:10, "Manuel Bergler" <berglerma at gmail.com>:
> > Am Mo., 3. Juni 2019 um 00:09 Uhr schrieb Kevin Kofler <kevin.kofler at chello.at>:
> >
> >>  What you call "obsolete functionality" is functionality that existing code
> >>  relies on and rightfully expects to remain there.
> >>
> >>  I'd rather get fewer (or even no) new features than losing existing ones.
> >>
> >>  See also Boudewijn Rempt's blog post on the subject:
> >>  https://valdyas.org/fading/hacking/happy-porting/
> >
> > I fully disagree with the sentiment in that blog post. If you don't
> > want to port, fine, but then also use whatever version of Qt you were
> > using before and don't try to use the latest and greatest.
>
> But FOSS software has to port, or it will be deemed to be "unmaintained
> application, which then rightfully should get dropped by distributions"
> (quoting Giuseppe's mail).

And this is where we come full circle :) Yes, FOSS needs to port, so
we should make porting as easy as possible. In particular, there
shouldn't be too many breaking changes all at once as that would make
porting a multi-month project. Instead, spread out the breaking
changes by also allowing them in minor releases.

Best
Manuel