Jim Halfpenny updated the apache/spark repository’s Kubernetes documentation to address the deprecation of Pod Security Policies in Kubernetes 1.25. He removed outdated references and guided users toward the Pod Security Admission Controller, ensuring the documentation accurately reflected current security best practices. Working exclusively in Markdown, Jim focused on reducing user confusion and potential misconfigurations by aligning Spark’s guidance with upstream Kubernetes changes. The update, delivered as part of SPARK-54416, involved careful review of security implications and collaboration with project maintainers. This work demonstrated a disciplined approach to documentation maintenance and a strong understanding of Kubernetes security and documentation standards.