Critical systems are becoming more and more complex and heterogeneous, integrating previously separated systems and including design solutions ranging from the introduction of software Off The Shelf (OTS) to the adoption of loosely-integrated and composable services. Innovative dependability assessment solutions and certification processes are thus needed to deal with such complexity, calling for new solutions for the efficient, automated, and possibly continuous assessment and certification. The RADIANCE workshop aims to discuss novel dependability assessment approaches for complex systems and to promote their adoption in real-world systems through industrial and academic research. RADIANCE aims to promote and foster discussion on novel ideas, constituting a forum where researchers can share both real problems and innovative solutions for the assessment of complex systems.