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Xuanwo
cababaecf0
Remote callers can use `db.server_info()` in Rust and Python, including synchronous and asynchronous Python connections, to identify the responding server without submitting a query or Job. Typed results describe the query-node build, component versions, Function protocol and configured images. Older servers without the endpoint return an explicit unsupported error. REST and Flight errors retain the reported build in diagnostic text and Rust `RemoteErrorMetadata.server`. Typed table/job-not-found errors preserve their HTTP source and classification, including the schema-cache path; masked REST errors can obtain provenance from the response header. Unknown build information stays absent. The matching native Python SDK was exercised against a real localhost server (`8829b074` client / `43920fa` server): sync/async discovery, both SQL version forms and actual REST/Flight error provenance passed. The product files match this branch; private validation drivers are excluded. Focused coverage includes typed 404 errors, masked errors, and the public schema-cache regression. Deployment and published-package acceptance remain separate. Server counterpart: https://github.com/lancedb/sophon/pull/10234. Related: ENT-3565.