Open CASCADE S.A.S. is pleased to announce a new public minor release of Open CASCADE Technology (version 6.1). This new minor release of Open CASCADE Technology 6.1 brings to its users a number of new features and improvements as well as some important changes over the last public minor release 5.2 (July 2004) and maintenance releases 5.2.x exclusively available to the customers. This new release brings more opportunities to Open CASCADE users.