[QGIS-Developer] QGIS and Qt 6: A proposal

[Tim Sutton]

Hi

> On 5 Jul 2020, at 23:44, Nyall Dawson <nyall.dawson at gmail.com> wrote:
> 
> 

> 3. We have some big hurdles approaching on which we'll be completely
> dependent on upstream Qt. Probably the most important of these being
> Apple's move to their own CPU architecture. If we don't move to Qt
> 6.0, then QGIS is DOA when the new Apple hardware starts selling.

For the macOS side of this, I wonder if things are quite so urgent. I think the first ARM (‘Apple Silicon’) based machines are going to be out this year, but it will be a two years before their product line is fully transitioned. macOS 11, as I understood things, will ship with Rosetta which will do a direct binary translation to ARM byte code, even if the binary does not ship with ARM binaries (e.g. as a Universal Binary). In the last episode of the ubuntu podcast (https://ubuntupodcast.org/2020/07/02/s13e15-vertical-chopsticks/ <https://ubuntupodcast.org/2020/07/02/s13e15-vertical-chopsticks/>) they discussed it a bit - probably worth a listen… I heard that the Rosetta overhead is around 25% on current development environments - probably the overhead will be reduced as the release approaches. Anyway, its good you are planning for the future, but I don’t think that macIS users are going to be left high and dry with upcoming changes…..hope I am note wrong :-)

Regards

Tim

> —













Tim Sutton

Co-founder: Kartoza
Honorary PSC Member and Ex-Project chair: QGIS.org <http://qgis.org/>

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