DuroDBMS 0.25 has been released. In addition to some minor fixes and improvements, this release provides modules.
DuroDBMS is a truly relational database management system, based on the principles laid down in the book Databases, Types, and the Relational Model: The Third Manifesto by C. J. Date and Hugh Darwen. Download DuroDBMS 0.25 from: http://sourceforge.net/projects/duro/files/duro/0.25/