In April 2025, Yifan Cai developed a Sidecar log management feature for the apache/cassandra-sidecar repository, focusing on efficient commit log lifecycle management. Yifan implemented a periodic task in Java that monitors and deletes commit log segments from the cdc_raw directory, addressing storage growth and supporting scalable log retention. The solution included comprehensive documentation to guide operators and facilitate future maintenance, as well as updates to release notes for transparency. By integrating this feature, Yifan improved operational stability and maintainability of the Sidecar, demonstrating depth in backend development, task scheduling, and documentation practices within distributed systems environments.