Worked on upgrading Gardener to version 1.117.5 within the sapcc/helm-charts repository, focusing on deployment manifests, Helm charts, and configuration files to ensure alignment with the latest stable release. The process involved updating image tags, dependencies, and key references such as Chart.lock, Chart.yaml, README.md, and values.yaml, all managed through a series of incremental commits for clear traceability. Leveraging skills in Kubernetes, Helm, and YAML, the work maintained reproducible deployments and improved deployment stability and security. This upgrade prepared the environment for new Gardener features while ensuring that all configuration and metadata remained consistent and up to date.