Worked on backend development for the milvus-io/milvus repository, focusing on risk-managed feature delivery using Go and Milvus. Developed and implemented a temporary restriction that blocks the creation of collections containing Timestamptz fields by adding a validation check within the createCollectionTask. This approach ensured that users could not create unsupported collections while the Timestamptz feature remained under development, reducing user-facing risk and supporting incremental rollout. Additionally, upgraded module dependencies to a newer version to maintain compatibility and improve security. The work demonstrated careful attention to safe feature gating and ongoing support for evolving backend infrastructure within the project.