# Historic Docs

Historic docs preserve dated implementation notes, evaluations, and superseded
design explorations. They are useful context, but they are not the active source
of platform direction.

Use dated filenames:

```text
docs.historic/<topic>/<sub-topic>/YYYY-MM-DD_<name>.md
```

- [2026-05-25 dlt and Databend evaluation](./ingestion/dlt/2026-05-25_dlt-databend-evaluation.md)
- [2026-05-25 TiDB Essential snapshot export MVP](./ingestion/tidbcloud/2026-05-25_mvp-tidb-essential-snapshot-export-to-cloud-lake.md)