ADG is a GObject-based library that provides a non-interactive cairo canvas specifically designed for generating technical drawings. Here it is a non-exhaustive list of closed issues:
The canvas now has printing support when compiled with GTK+ enabled. The media setup can be associated to the canvas so this data can be accessed to provide a consistent behavior between different backends.
The demo program can now render the drawing to an SVG file. Generated files are stored in the user document directory.
Uncomplete entities now fail gracefully instead of complaining for insufficient data. This provides an easy way to implement optional machinings: the optional groove in the adg-demo program is working by leveraging this feature.