Sarwar Bhuiyan enhanced the Timeplus Proton repository by improving both documentation and core SQL logic to strengthen developer experience and data correctness. He refreshed the README to clarify Proton’s stream processing capabilities and added a detailed comparison with ClickHouse, reducing onboarding time and potential misconfiguration. Sarwar also updated the Change Data Capture (CDC) sample, refactoring SQL to capture both before and after states for updates, enabling robust undo support in changelog queries. His work demonstrated depth in database design, SQL, and technical documentation, resulting in clearer guidance and more maintainable samples for developers working with Timeplus Proton.