[Development] QtCS 2024 session on deprecations: what did we actually agree on?

[Jyrki Yli-Nokari]

Hear hear. 

I would also bring to the table the removals from QtQuick API. The QtQuick.Extras was removed in Qt6. The missing CircularGauge (which is non-trivial to implement or port) has prevented me to migrate to Qt6.

With modern C++, the value of Qt is the multiplatfrom GUI (and as a professional React dev, I do think QML is the best there is).
But the value of any platform, especially. QtCore, is in backwards compatibility.

As a user I can do simple replacements and slight API changes as long as I can keep my source code in one branch. Switching from qmake to cmake is ok with conversion tool.
But when something is no more there and there is no documented/assisted way to migrate, I can not trust the platfrom promise anymore.



> Schimkowitsch Robert <Robert.Schimkowitsch at andritz.com> kirjoitti 15.1.2025 kello 11.46:
> 
> If I may add a user's perspective to the discussion.
> I know gift season is over, but here is what I (as a user) would ideally get:
> 1) Things get deprecated, including clear communicating when they are planned to be removed (e.g. "to be removed in Qt 7" or "to be removed in Qt 8")
> 2) There is always at least one X.Y-release between deprecating and removing. So if something is deprecated in the last version of Qt 6.x, it is removed in Qt 8, not Qt 7
> 3) This also gives me time, as a user, to study deprecations, and write a support ticket ("are you serious?") in the probably rare cases things would really break the world for me
> 4) Offering Compat modules is welcome where it is feasible
> 
> That said, I welcome improving APIs, so I (as a user) am ready to accept a moderate amount of pain. (Of course, you must, under no circumstances, ask the people responsible for our release schedule...)
> 
> Kind regards
> 
> Robert
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