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

[Greg Troxel]

Nyall Dawson via QGIS-Developer <qgis-developer at lists.osgeo.org> writes:

> That said, I share Vincent's concerns about the plugin situation. I'm
> not super-comfortable with advertising Qt 6 builds as the "default"
> for QGIS without some disclaimer about the plugin situation. Maybe at
> this milestone we could rework the download page so that the two
> options are presented equally, eg:
>
> Which QGIS version do you want?
>
> QGIS (Qt 5 version) -- less stable, but with full compatibility for
> all existing plugins
> QGIS (Qt 6 version) -- more stable, with better modern platform
> support, but limited support for existing plugins. (see XXX for guides
> on how to update your plugins to be compatible with these builds)
>
> i.e. we just shove the choice of build at the user and let them make
> an informed (?!) decision.

That seems reasonable.  It seems clear that some people will find one or
the other more useful, and it seems to me that will continue for quite a
while, as I suspect the % of updated plugins will not reach 98% for a
long time.

I wonder about "less stable" qt5 and "more stable" qt6.  Do we really
believe that qgis built on qt6, with no plugins will have fewer crashes
and quirks, than the qt5 build?  That is surprising to me at this point.
Do we still believe that if one assumes "qgis with N random plugins that
claim to support qt6"?

I expect a qt6 build is kind of like a .0 release, and we would want to
have qt6 builds widel avaialable and time for feedback before saying
it's stable.