During November 2025, Yutong Tang focused on stabilizing the pion/webrtc test suite, addressing reliability issues across media, DTLS, and RTX test paths. By leveraging Go and concurrent programming techniques, Yutong identified and resolved root causes of flaky tests, such as race conditions and intermittent timeouts, which previously undermined CI determinism. The work involved improving state tracking for DTLS fingerprint validation and ensuring PeerConnection readiness before media transmission, resulting in more predictable and robust test outcomes. Through targeted bug fixes and enhanced cleanup routines, Yutong reinforced the reliability of network programming tests, contributing to greater release confidence for pion/webrtc.