[QGIS-Developer] QGIS 3.46 builds to use Qt6?

[Martin Dobias]

Hi all

As the time progresses and Qt6 support in QGIS is getting better and better
(huge thanks to all devs that have been pushing qt6 support forward!), what
do you think about setting a timeline to finally switch the official QGIS
builds to Qt6?

My understanding is that there are only few blockers left to address (e.g.
vectorized output from webengine, mac packages), so to kick off the
discussion, I would like to propose that QGIS 3.46 scheduled for October
2025 could be the first release where qt6 builds would be the official
ones. (qt5 builds could still be made, but not official anymore.)

I think that should hopefully give use enough time to get things ready, and
also give enough time for plugin developers to migrate plugins to be qt6
compatible.

To speed up work on the items left, we could even make next year's grants
specifically ONLY about qt6 migration, to make sure that we are on the
right track...

Does this sound doable, or am I just dreaming? :-)

Cheers
Martin
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