Whats new in version 0.45:• Essential improvements for FuncDesigner interval analysis (thus affect interalg)
• Temporary walkaround for a serious bug in FD 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
Publisher review:OpenOpt is a free and Python-based cross-platform (Mac OS, Linux, Windows etc) alternative to commercial frameworks like AMPL, LINGO, AIMMS, GAMS, TOMOPT's TOMLAB / TOMNET.
Primary goals:
· providing connections to lots of solvers (some are C- or Fortran-written) with easy and unified OpenOpt syntax
· developing named variables syntax for non-linear problems group, that is capable to speed up some non-linear solvers in several times via some AD features (take a look at 5X speedup example)
· trying to enhance algorithms for numerical optimization invented by Ukrainian academicians Boris Pshenichniy and Naum Z.
Operating system:Mac OS X
OpenOpt 0.45 details 
