Are you sure you can't open it in older versions? I mix project versions a far bit and never seem to have any issues. Some styling options etc might not load right but it should still open at least.
On Tue, 25 Oct 2016 11:10 pm Paulo van Breugel <p.vanbreu...@gmail.com> wrote: > On 25-10-16 13:56, Matthias Kuhn wrote: > > Hi > > > >> Oh yes, it's true ! You are right. I tested. :( > >> > >> So I am asking: what is the reason why we did this ? > >> > >> What you call "feature" is a problem for all those who need to share > >> data with users who have an older version of QGIS, for one reason or > >> another. > >> > >> I am wrong ? What do you think ? > >> > >> Regards > >> Geo > >> > > Nothing has been explicitly done to prevent it. > > > > The "feature" is a warning which you can interpret as "It might or might > > not work in your scenario. Before you rely on backporting projects in > > production scenarios, test it carefully.". > > Or test one version and stick to that within a project which is the > > safest choice. > > > > Changing this behavior would be a considerable additional amount of work > > and slow down development of new features (and there would still be no > > guarantee). > To state it perhaps more explicitly, this is not a 'feature'. It is a > 'consequence' of the development or improvements of features in QGIS. > This is basically a choice that has between made to avoid spending too > much time on making project (.qgs) files back-ward compatible, as > explained by Matthias. This may indeed be a problem for users (it has > been for me in the past). But QGIS does provide a clear warning that > your project files may not be backward compatible, to help users to run > into problems later. It would have been nice to have some form of > backward compatibility, but I understand why this may not be feasible, > and I am happy I am being warned in advance. > > > > > Regards > > Matthias > > _______________________________________________ > > Qgis-developer mailing list > > Qgis-developer@lists.osgeo.org > > List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer > > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer > > _______________________________________________ > Qgis-developer mailing list > Qgis-developer@lists.osgeo.org > List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
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