[QGIS-Developer] how compatible .qml files are ?

[Sandro Santilli]

On Sun, Sep 01, 2019 at 08:19:18AM +1000, Nyall Dawson wrote:
> On Sat, 31 Aug 2019 at 17:02, Sandro Santilli <strk at kbt.io> wrote:
> >
> > It would sound like QgsProjectFileTransform::updateRevision should throw
> > an exception when unable to do what's been asked for ?
> 
> In this case QgsProjectFileTransform will be a red herring - there was
> never a transform in place for this code, so there won't be any clues
> there.

You mean QgsProjectFileTransform class never dealt with style configured in
project files ? Or what does "for this code" mean, exactly ?

Regarding dropping backward compatibility, you say:

> this was a wide group decision, with consensus from
> all currently active QGIS developers and maintainers. It was deemed
> unnecessary at this point in time.

Do you have a link to a mailing list thread where decision taking
process was conducted ? Just in case it has some hints about how
to fix this backward compatibility problem as QGIS moves forward.

--strk;