Relicensing Open Source Projects: A Study of Elasticsearch, Redis, and Terraform

Facing economic pressure, some companies are relicensing their popular open source projects to more restrictive licenses to generate more revenue, leading to project forks. CHAOSS studied Elasticsearch, Redis, and Terraform, finding that forks often exhibit greater organizational diversity than the originals, especially under neutral foundations like the Linux Foundation. While relicensing had minimal impact on contributors to the original projects, it significantly affected users. This research is the first step in a larger ongoing project; future analysis will incorporate more data and projects for a deeper understanding.