Extension authors were asked to update their extensions to the new API, so that is one of the breaking changes. I've updated my simple extension¹ for applying

Extension authors were asked to update their extensions to the new API, so that is one of the breaking changes. I've updated my simple extension¹ for applying matrix transformations to create drawings in an isometric perspective accordingly. The 1.0 beta's of Inkscape gave quite adequate feedback to help transition my Python code, so it was quite straightforward to do. 1: https://github.com/jdhoek/inkscape-isometric-projection https://github.com/jdhoek/inkscape-isometric-projection