Necip Ulusoy developed comprehensive upgrade documentation for Elasticsearch and Kibana within the hepapi/knowledge-hub repository, focusing on the rolling upgrade process across multi-master node environments. He authored a detailed guide outlining each upgrade step, associated precautions, and rollout considerations, aiming to improve upgrade reliability and streamline onboarding for developers and operators. The work introduced a dedicated documentation section to support self-service upgrades, making the process more accessible and reducing dependency on direct support. Utilizing Markdown and YAML, Necip applied his skills in DevOps, documentation, and search infrastructure to deliver in-depth, actionable resources that addressed both technical and operational requirements.