Comsol Inc. has released version 3.3a of its Multiphysics simulation environment software. The upgraded package includes a library with 2500 materials for quick and accurate model setup. It offers automatic repair and defeaturing in the CAD import module to make importing complex designs easier. The software also has a Spanish user interface and a Chemkin file-import facility to read data in a format standard in the chemical industry for gas-phase reactions, combustion and atmospheric chemistry. The software runs on Microsoft’s Vista operating system as well as on Intel-based Macs.