Razorcat introduces the latest release of TESSY, the powerful, certified unit and integration testing tool for embedded software written in C/C++. TESSY 4.0 provides a wide range of new features, most notably a full support for C++, a convenient software variant management system, and UUIDs (universally unique identifiers) for all TESSY objects. TESSY supports a wide range of microcontrollers, compiler environments and target platforms, including the latest versions of Wind River Workbench and Diab Compiler.