[Qgis-developer] QT 5.2 is out

[Martin Dobias]

On Fri, Dec 13, 2013 at 4:13 PM, Denis Rouzaud <denis.rouzaud at gmail.com> wrote:
>>
>> Yeah, it would be great to see QGIS ported to Qt5. My hope is that
>> QGIS 3.0 will use Qt5 and Python3.
>>
>>  From what I have read in Qt blogs, Qt 5.2 should really make
>> development for Android easier than ever before.
>
> Is there any guidance regarding this?
> I mean, on one hand, I think users (plugins dev mainly) might be upset if
> this change is happening so close to 2.0 release and on the other hand we
> don't want to wait ten years for this to happen, especially if this brings
> QGIS more easily on mobile device.
> If QGIS 3 is brought as the "mobile" release, it might sweeten the pill.

We should be able to get our codebase into a state where it will
compile with both Qt4 and Qt5. The transition should be relatively
painless (mostly fixing the build and plugin/provider system). Even
after that, all the 2.x releases would still be based on Qt4 and
Python2 - no change whatsoever, so no reason for making plugin
developers angry. Just people building their custom projects based on
QGIS would eventually be able to use the new features from Qt5.

Martin