Worked on the dagster-io/dagster repository to improve stability and compatibility for upcoming Python releases. Focused on asynchronous programming and Python development, addressing Python 3.14 warnings by standardizing the use of inspect.iscoroutinefunction throughout the codebase. This change replaced the previous reliance on asyncio.iscoroutinefunction, aligning with existing patterns and reducing inconsistencies. The update enhanced test reliability and reduced noise in continuous integration pipelines for Python 3.14 and newer environments. By prioritizing maintainability and future-proofing, the work ensured smoother deployments and easier long-term support, even though no new features were added during this period and one bug was fixed.