Joint SDG Ecosystem Day is scheduled for 26 November 2025, as a full-day online event organised by European Telecommunications Standards Institute (ETSI). It brings together the communities of all ETSI Software Development Groups (SDGs) to share implementation experiences, future plans, and contributions to open-source ecosystems spanning the edge, cloud and network domains. 
 Participation is free and open, with presentations (including Q&A) invited from projects and organisations actively contributing to SDG ecosystems, underlining how ETSI sees collaboration and openness as key to shaping future technologies.