On Aug 26, 2005, we released a new version of Ipopt, implemented in C++.  The previous version (in Fortran) will still be available, but the C++ version will be used for all new development.


For the homepage of the C++ version of Ipopt (version 3.x) go to

http://projects.coin-or.org/Ipopt






For the homepage of the pre-3.0 version (in Fortran) go to

http://www.coin-or.org/Ipopt/ipopt-fortran.html