Joe updated the Cost Allocation Lookback Period documentation in the unionai/unionai-docs repository, extending the lookback window from 30 to 60 days to clarify the availability of longer historical cost data for analysis. He focused on improving documentation quality and traceability, using Markdown to ensure clear communication of product capabilities. By aligning the documentation with recent product changes, Joe enabled more accurate cost modeling and better decision-making for customers. His work emphasized precision and clarity, reducing ambiguity for both developers and end users. The update did not involve bug fixes but demonstrated depth in technical writing and documentation best practices.