I'm glad to inform you about new OpenOpt Suite release 0.45 (2013-March-15):
* Essential improvements for FuncDesigner interval analysis (thus affect interalg)
* Temporary walkaround for a serious bug in FuncDesigner automatic
differentiation kernel due to a bug in some versions of Python or NumPy,
may affect optimization problems, including (MI)LP, (MI)NLP, TSP etc
* Some other minor bugfixes and improvements