The Carnegie African Diaspora Fellowship Program (CADFP), which commemorated its 10th anniversary in 2023, epitomizes the enduring commitment of Carnegie Corporation of New York to higher education in Africa. CADFP has bridged continents, enabling African-born scholars residing in the United States or Canada to contribute significantly to their countries of origin. This return of expertise through 665 fellowships and 192 host universities has been pivotal in enhancing African higher education institutions' academic and research capacities. In this report, the reader will follow CADFP's Theory of Change, focusing on the impact of the CADFP experience on alumni and others through knowledge sharing, sustained collaborations through research, curricula development, and student mentoring and teaching. This report explores program impact through the following research questions: (1) how did the CADFP fellowship produce collaborations that have continued and grown since the grant?; (2) how did Diaspora and Host Fellows continue to engage with each other and other African higher education institutions after the CADFP fellowship?; and (3) how did fellowships and post-fellowship collaborations impact African higher education institutions in the long-term? The Institute of International Education's Research, Evaluation, and Learning (REL) unit used a mixed-methods approach to expand upon previous evaluations. In the summer of 2023, REL shared the CADFP Legacy survey with 447 Host Fellows and 384 Diaspora Fellows who completed their grants between the inception of the program and the end of 2022. The report also incorporates additional research conducted by the REL unit on follow-on grants in 2022. In the survey, REL contacted Host and Diaspora Fellows about the continuation of their projects and their experiences in securing additional funding.