Hi, We have remarked such breaking compatibility format problem. The more annoying for us being the layout style, with font format being lost, so we have to correct everything. I planned to inspect the file as you did, your work will be useful.
Thank you ! Jésahel Benoist Service des Risques Urbains et Sanitaires Ville de Lille Le jeu. 27 avr. 2023 à 08:08, FERRATON Alain (Adjoint au chef de groupe) - SG/DNUM/MSP/DS/GSG via QGIS-Developer <qgis-developer@lists.osgeo.org> a écrit : > Hi > > A polygon layer saved in a project file with QGIS 3.28 is systematically > opened in blue in QGIS 3.16 (the style is lost). > > There has been a change in the storage of style in project files > introduced in QGIS 3.22. > > QGIS 3.22 save the style in both formats (<Option.../> > > and <prop k=.../> > > (see the attachment) > > This is no longer the case in QGIS 3.28 > > We have a heterogeneous QGIS version park. The non backward compatibility > of style is an important brake to migrate progressively our services to > QGIS 3.28 > > We could consider developing or having developed a plugin to ensure this > backward compatibility. > Is this possible? What would be the best way to proceed? Can we find > documentation on the storage of styles in QGIS project files and on its > evolution? > (I didn't find anything relevant by searching on the internet). > > Sincerely, > -- > > *Alain FERRATON* > Adjoint au chef de groupe > MSP/DS/GSG > Direction du numérique | Secrétariat général > > MAN 7, rue René Viviani 44200 NANTES > Bureau : MAN étage 1 plateau B > Tel : +33 240128408 - Mobile : +33 671794593 > www.ecologie.gouv.fr > [image: Marianne] Secrétariat général > MINISTÈRES > TRANSITION ÉCOLOGIQUE > COHÉSION DES TERRITOIRES > TRANSITION ÉNERGÉTIQUE > MER > [image: liberté, égalité, fraternité] > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer >
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