The white paper highlights how neglecting custom relay programming when replacing aging electromechanical relays with microprocessor-based relays undermines the upgrade investments and jeopardizes system protection. This relay retrofit made by many utilities and industrial facilities brings a multitude of benefits which are also outlined in the white paper. The benefits of these new generation relays include improved system reliability, enhanced control, event recording and reporting capabilities, decreased maintenance, simplified regulatory compliance, enhanced communication, arc flash mitigation, and better overall protection.