In April 2025, the docs-cn repository focused on aligning documentation with current product behavior and enhancing runtime configurability for Pipelined DML. Key outcomes include removing deprecated txn_scope references to improve documentation accuracy and introducing the tidb_pipelined_dml_resource_policy system variable to help operators manage resource usage during contention, with modes standard, conservative, and custom, plus usage guidance. These changes reduce user confusion, enable better performance control in high-load environments, and demonstrate strong documentation hygiene and governance over system-variable features.

Month 2025-03: Delivered documentation for TiKV max-ts checker configuration in the hfxsd/docs-cn repo, detailing action-on-invalid-update, cache-sync-interval, and max-drift, including purposes and defaults to help TiDB users tune linearizability and transactional concurrency. This work improves user guidance, configuration correctness, and overall deployability of TiDB in production. Key impact includes reduced support queries related to max-ts settings and clearer documentation for cross-team users. Technologies demonstrated include documentation discipline, TiKV/TiDB configuration semantics, and Git-based collaboration. No major bug fixes identified in this interval.

January 2025 monthly summary: Delivered comprehensive TiDB documentation for Batch Processing and Pipelined DML in hfxsd/docs-cn. The update includes data import workflows, DML operation guidance, and updated system variable descriptions to support large-scale data operations. No major bugs were reported this month.