During December 2025, John Herrmann focused on stabilizing job management workflows in the ASFHyP3/hyp3 repository by reversing a previously implemented batch job renaming feature. He removed the batch update API endpoint, backend logic, request handling, and associated tests, restoring the system to a single-job update flow. This rollback, implemented using Python and YAML, reduced the risk of batch-state inconsistencies and simplified ongoing maintenance. John’s work in API development, backend development, and testing improved the clarity and stability of the API surface, aligning the system with existing user workflows and lowering operational risk for both developers and end users.