During November 2025, Symphony contributed to the XTLS/Xray-core repository, focusing on enhancing DNS protocol reliability in Go. Symphony addressed a critical parsing issue by correcting the DNS response length data type from int16 to uint16, ensuring accurate handling of response lengths across both QUIC and TCP transports. This fix reduced the risk of misparsing and improved the stability of name server interactions, particularly in edge-case scenarios. The work involved careful validation of cross-transport DNS parsing correctness and collaborative development practices, demonstrating depth in network programming and protocol compliance. Symphony’s targeted bug fix strengthened DNS handling for robust service discovery.