The steward of the Open Source Definition, setting the foundation for the Open Source Software ecosystem.
-
OSI is now opening its search for a new executive director. We are greatly appreciative of Maffulli’s work over the last four years and look forward to what our next ED will build upon his foundation.
-
On 16–17 September 2025, leaders from across the Open Source ecosystem gathered in Brussels for the third annual Open Source Congress (OSC), followed by the companion Stakeholder Day. Each year, the Congress has provided an intimate forum for foundations and ecosystem leaders to exchange views on the global forces shaping open collaboration.
-
October is here, which means it’s time for Hacktoberfest, the annual celebration of Open Source contributions hosted by DigitalOcean and friends. The Open Source Initiative (OSI) is proud to be once again a community partner of Hacktoberfest this year, helping to amplify participation and welcome new contributors to the Open Source movement.
-
The Open Source Initiative (OSI) will begin searching for a new executive director as Stefano Maffulli departs in October to focus on Open Source AI and data governance.
-
Wrapping up 4-year term as OSI executive director.