Around 50 researchers and funding professionals from the Research on Research Institute (RoRI) consortium and beyond gathered in snowy Hannover for two days in December 2023 to share evidence and ideas linked to our latest wave of projects. The first day explored the funding and evaluation of transdisciplinary research—the focus of RoRI’s Undisciplined project—while the second ranged across initial findings from our other nine projects, new and emerging priorities, and ways to strengthen our collaborative working methods. This report presents a summary of headline points from the two days, together with a selection of speakers’ slides.