[QGIS-Developer] Qt 6 plans

[Denis Rouzaud]

I realize the topic hasn't brought much attention a year ago, but things
are getting more real, and Qt 6 is about to be branched [0] -- no, no, not
released, just branched ;)

No changes since Nyall's email:
> Qt6 is expected to be released in late 2020 as an evolutionary
advancement over Qt5 with less breakage compared to the Qt4 to Qt5
transition.

Nyall estimated some timeline at late 2021 - mid 2022 for QGIS 4.0 release.

One major topic is to decide wether we stick to PyQt6 or if we look towards
PySide2. This is for sure not a trivial discussion, and cannot be decided
without a deeper look and understanding.

But before going into technical details, I think that we anticipate as much
as we can and ideally have this handled by a dedicated group who could
propose and defend an action plan and timeline. What PSC thinks about this?
Do you have any plan already?

Cheers,
Denis

[0]
https://www.phoronix.com/scan.php?page=news_item&px=Qt-6-Development-Beginning

Le jeu. 21 juin 2018 à 03:17, Nyall Dawson <nyall.dawson at gmail.com> a
écrit :

> Hey all,
>
> The Qt project have recently been discussing plans for the next major
> release (Qt 6). This blog post is a summary of their current plans:
>
> https://tsdgeos.blogspot.com/2018/06/qt-contributor-summit-2018.html
>
> It all seems quite good from a QGIS perspective, and unlikely to be as
> large a porting effort as Qt 5 was.
>
> If their time frame of November 2020 for a first release is kept (and
> we wait for Qt 6 for QGIS 4.0) then we'd be probably be looking
> roughly at a late 2021-mid 2022 timing for QGIS 4.0. (Put it in your
> calendars now so you don't forget to install the new version.)
>
> Nyall
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