AUV2026 continues a series of symposia focusing on the emerging technologies for AUVs, ASVs, underwater gliders, Argo and Lagrangian floats and their applications. We expect a large proportion of papers will involve field robotics and/or data gathered from the field. In addition the following core topics will be presented and discussed during the Symposium: • Vehicle design • Vehicle planning and control • Vehicle navigation and sensing • Operations, communication and data management • Science and industrial applications for sustainability