PANTHERE is an industrial simulation tool developed by EDF to calculate γ dose rates in 3D geometry with numerous observation points and radioactive sources. It is composed of three main components: a kernel, a GUI and a database. PANTHERE takes a key role in EDF's ALARA process, enabling to predict dose rates and then organize and optimize operations in high radiation environments. It is used in most EDF engineering units at every stage of a nuclear facility lifecycle: design (EPR TM , for example), operation (maintenance) and dismantling. PANTHERE is verified and validated by comparison with reference Monte-Carlo code TRIPOLI-4® and gamma dose rates experimental measurements. EDF is currently replacing PANTHEREV1 (operational version) by PANTHEREV2. The major improvements are the enhanced computation speed, the unification of the GUI and the shared database for all radiation protection simulation codes used by EDF engineering units (gamma, and in the future beta and neutron radiation). PANTHEREV2's kernel uses the NARMER solver of the CEA, which performs dose rate calculations based on the point-kernel integration method with build-up factors. The GUI is based on the software platform SALOME® of CEA and EDF, and provides improved ergonomy and contains all necessary features as required by radiation protection simulation practices.