During July 2025, Qiuxi Zhou focused on improving the stability of EmbeddingBag configuration handling within the pytorch/torchrec repository. By implementing a targeted compatibility fix in Python, Qiuxi addressed how configuration attributes are accessed, ensuring backward compatibility and reducing the risk of future incompatibilities for downstream users. This backend development work required a strong understanding of data structures and careful attention to API stability, particularly for IEN Publish and production workflows. Although the contribution centered on a single bug fix rather than new features, the solution demonstrated depth by proactively mitigating regression risks and supporting smoother upgrades across TorchRec deployments.