Ben Ohe upgraded the Docker base image for the MeasureAuthoringTool/measure-service repository, moving from Amazon Linux 2 to Amazon Linux 2023 to ensure ongoing security updates and compatibility with modern runtimes. He approached this task by updating the Dockerfile, leveraging his skills in containerization and DevOps to modernize the service’s deployment environment. The change improved the project’s security posture and streamlined future maintenance by aligning with a supported operating system lifecycle. Ben maintained clear version control traceability throughout the process, focusing on stability and forward-looking maintenance rather than bug fixes, and demonstrated a methodical approach to infrastructure modernization.