The issue includes three features. In the Mental health and psychosocial support (MHPSS) feature, authors explore the challenges inherent in this field, debate MHPSS initiatives, and advocate for strengthened collaboration and new ways of thinking. In the Data and displacement feature, authors discuss recent advances in gathering and using data, the challenges that remain, and new approaches, including in the face of pandemic-imposed restrictions. Finally, in the Missing migrants feature, authors explore initiatives to improve data gathering and sharing, identification of remains, and assistance for families left behind.