Miguel Moquillon upgraded the Silverpeas Docker library within the influxdata/official-images repository, focusing on enhancing security and maintainability by transitioning the base image from Ubuntu Focal to Ubuntu Jammy. He implemented this change by updating the Dockerfile and adjusting the GitCommit reference for the 6.3.6 tag, ensuring accurate build traceability and alignment with supported Ubuntu releases. Leveraging his expertise in DevOps and Docker, Miguel addressed the need for up-to-date security patches and streamlined maintenance. His work demonstrated a clear understanding of containerization best practices and contributed to the long-term supportability of the official Docker images for Silverpeas.