Vamsi Ambadri upgraded the Docker base images for the microsoft/fhir-server repository, focusing on enhancing container security and runtime stability. By updating the .NET SDK from version 9.0.202 to 9.0.203 and the ASP.NET runtime from 9.0.3 to 9.0.4, Vamsi proactively addressed security vulnerabilities and improved maintainability for production deployments. The work involved Dockerfile maintenance, patch governance, and adherence to CI/CD best practices, ensuring traceability through linked commits. Although no bugs were fixed during this period, the targeted feature work demonstrated depth in containerization and DevOps, resulting in a more secure and reliable deployment pipeline.