Cambridge, Massachusetts-based Centerline Software Inc has introdcued version 4.0 of its C programming environment, CodeCenter, while a new iteration of its C++ object-oriented environment, ObjectCenter 4.0, will be released in January 1993. CodeCenter 4.0 includes run-time error checking functions written in object code, programming toolkits, graphical browsers, an ANSI C compiler and debugger and a graphical user interface builder. The company has also developed an application programming interface for CodeCenter which enables users to integrate their envi-ronments with Hewlett-Packard Co’s SoftBench software engineering system and Sun Microsystems Inc’s ToolTalk messaging service. The programming interface will enable users to access the CodeCenter engine and import and export data structures and class hierarchies, the company says. According to Centerline, version 4.0 of the C++ ObjectCenter will include new object-oriented class libraries, data storage functions and re-usable code functionality for users switching from C to C++. CodeCenter is available for Sun Sparcstations, HP 9000s, IBM Corp’s RS/6000s and Digital Equipment Corp DECstations. CodeCenter is available now but no prices were given. ObjectCenter is available in the UK from Manchester-based K2 Software Developments Ltd. Meanwhile CenterLine has signed to market Concord, Massachusetts-based Software Maintenance and Development Systems Inc’s software configuration management system, Aide-de-camp, with ObjectCenter.