Developed and integrated an Elasticsearch compatibility mode for the astronomer/airflow repository, enabling seamless operation with Elasticsearch 8.x and 9.x clusters. The solution involved wrapping outbound transport requests with version-specific Accept headers, ensuring stable content negotiation across core components such as ElasticsearchTaskHandler and ESConnection. Leveraging Python for backend development and API integration, the work included comprehensive wire-level tests to validate transport-layer behavior and content-type handling, as well as refinements to CI checks and static analysis. This approach stabilized Elasticsearch-backed logging and remote task log ingestion, reducing upgrade risks and supporting robust, configuration-driven compatibility for Airflow’s logging infrastructure.