Release Notes

PSI 3.4.0 "Xander"

  • CCSD(T) gradients (experimental)
  • Multi-reference coupled-cluster
  • New Hessian updates for geometry optimization
  • Empirical dispersion corrections for Hartree-Fock (energies, gradients, and Hessians)
  • Updated users' and programmers' manuals
  • Fully C++-compliant
  • Back-end being brought to object-oriented design
  • Integrals conform to Common Component Architecture specifications
  • Doxygen documentation updated
  • Easier compilation and installation
  • Multiple bug fixes


This page was last updated on 16 February 2009.