NWChem Version 6.0 Release Notes NOTE: These release notes are not a substitute for reading the User Manual! They are meant to give a thumbnail sketch of the new capabilities and bug fixes that are available in NWChem Version 6.0. When there is a conflict between the release notes and the User Manual, the User Manual takes precedence. NWChem 6.0 is released as open-source under the ECL 2.0 license. TCE * Greatly improved memory management for TCE four-index transformation, CCSD(T), CR-EOMCCSD(T), and solver for EOMCCSD * Performance and scalability improvments for TCE CCSD(T), CR-EOMCCSD(T), and EOMCCSD * TCE based static CCSD hyperpolarizabilities DFT * New exchange-correlation functionals available in the Gaussian DFT module o Range-separated functionals: CAM-B3LYP, LC-BLYP, LC-PBE, LC-PBE0, BNL. These functionals can also be used to perform TDDFT excited-state calculations o SSB-D functional o Double hybrid functionals (Semi-empirical hybrid DFT combined with perturbative MP2) * Spin-orbit now works with direct and distributed data approaches * Bug fix for DISP: Empirical long-range vdW contribution NWPW: * Plane-wave BAND module now has parallelization over k-points, AIMD, and Spin-Orbit pseudopotentials * Plane-wave modules have improved minimizers for metallic systems and metadynamics capabilities * Greatly improved documentation for plane-wave simulations with extensive set of examples and tutorials QMMM: * Greatly improved documentation for QM/MM simulations PROPERTIES: * DFT response calculations are now available for order 1 (linear response), single frequency, electric field and mixed electric-magnetic field perturbations. * Bug fix for Hartree-Fock Exchange contributions in NMR