This book constitutes the refereed post-conference proceedings of the 4th IFIP TC 3 Open Conference on Computers in Education, OCCE 2024, held in Bournemouth, UK, during February 27 - March 1, 2024. The 22 full papers and 3 short papers included in this volume were carefully reviewed and selected from 72 submissions. They were organized in topical sections as follows: Digital Education in Schools, Higher Education and Communities; Computing Education in Schools and Higher Education; and Contributions of IFIP TC3 to Digital Education.