On behalf of the ISSMO Executive Comittee, we are very pleased to announce that the ISSMO/Springer Prize 2023 is awarded to Mr. Changyoung Yuhn: “4D topology optimization: Integrated optimization of the structure and self-actuation of soft bodies for dynamic motions” by Changyoung Yuhn, Yuki Sato, Hiroki Kobayashi, Atsushi Kawamoto and Tsuyoshi Nomura, Toyota Central R&D Labs.