Worked on the nginxinc/kubernetes-ingress repository to standardize and clean up Custom Resource Definitions, focusing on aligning with updated Kubernetes API standards. The main feature involved removing the deprecated preserveUnknownFields field from multiple CRDs, which simplified YAML configuration and reduced schema complexity. This change improved upgrade safety and positioned the project for smoother future transitions, enhancing maintainability and compatibility within the Kubernetes ecosystem. The work relied on DevOps practices and deep knowledge of Kubernetes and YAML, emphasizing long-term reliability. No major bugs were addressed during this period, with efforts concentrated on proactive technical debt reduction and configuration modernization.