In this episode, Matthias Reinwarth discusses the updates to the Identity Fabric and IAM reference architecture with Dr. Philipp Messerschmidt and Martin Kuppinger. The Identity Fabric is a holistic concept that provides seamless yet secure access to every type of identity for every type of service. The update to the Identity Fabric is necessary to reflect the developments in the IAM world, such as new trends in authorization and authentication. The IAM reference architecture provides more detail and functional capabilities for each pillar of IAM. The update also includes the addition of new identity types and the inclusion of architectural concepts like microservice architectures and identity API layers. The Identity Fabric 2025 will be flexible and adaptable to future trends and challenges in IAM.