# RD21 remediation and requalification

**SQLite repair implemented; formal RD21 UNRESOLVED, Phase 9 NO-GO, Phase 10 NO-GO,
production NO-GO.** Required MariaDB runtime qualification is unavailable on this host.

The [dated acceptance addendum](ACCEPTANCE_ADDENDUM_2026-10-23.md) is the current assessment.
The original [Phase 9 decision](../p9-07/FINAL_ACCEPTANCE.md) and all original evidence remain
unchanged historical records.

- [Request](REQUEST.md), [implementation plan](PLAN.md), [root cause](ROOT_CAUSE.md).
- [Save/conflict contract and compatibility](SAVE_CONTRACT.md), [related surface review](RELATED_REVIEW.md).
- [Original reproduction](original-reproduction.json), [native RED evidence](before-regressions.json).
- [Exact final validation](validation.json), [browser database observations](browser-observations.json).
- [Commands and evidence accounting](COMMANDS.md), [review rulings](REVIEW_RULINGS.md).
- [Preservation reconciliation](PRESERVATION.md), [all 57 groups and 33 routes](preservation.json).
- [Frozen source/export/assemblies](source-manifest.json), [PDF input provenance](native-document-provenance.json).
- [Standard PDF oracle](fidelity-results.json), [Settings PDF oracle](settings-fidelity-results.json).
- [Conforming volume fixture provenance](volume/fixture-provenance.json).

Product qualification ends at commit `1b89a77` on `fix/rd21-acknowledged-edit-loss`, based on
`8e7e3f6387544e24082ebe2c107c0b868897959e`. Later reporting commits do not change qualified
product inputs. The final delivery message supplies the reporting commit and direct remote
comparison, avoiding a self-referential commit hash in this document.

Machine-readable results retain case identities, process outcomes and original raw hashes. Raw
test outputs, traces, synthetic databases and generated PDFs remain in ignored `.artifacts/rd21/`;
portable observations and oracle results are committed here. This does not make raw artifacts
available from a fresh clone or claim independent human/device/provider verification.