ADG is a GObject-based library that provides a non-interactive cairo canvas specifically designed for generating technical drawings. More details can be found on http://adg.entidi.com/
The project has been ported to GTK+3 also on Windows platforms. The helper scripts now build only GTK+3 installers.
The recent porting of Fedora mingw packages to archlinux made possible to generate for the first time a win64 installer.
adg-demo now embeds icons of different sizes, ranging from 16x16 to 128x128 pixels. The look-up falls back to srcdir so the icons can be used also without installing the program. A bunch of new APIs has been added to help this relocation.
The Windows installers received a lot of cosmetic improvements. The NSIS code has been cleaned up.