# KIMU 5.2.0 Increment 39 build scope

## Controlling baseline

KIMU 5.2.0 Increment 38 Comprehensive Technical Build Specification R2, dated 29 July 2026.

## Increment 39 objective

Preserve usable chat while autonomously implementing the highest-value missing foundations that can be safely completed without provider credentials, production infrastructure or an encryption-key-management decision.

## Completed in this increment

1. Files and ZIP intake API, database records, user interface and chat attachment linkage.
2. Safe ZIP inventory and bounded text extraction without archive extraction to the filesystem.
3. Together-compatible image and textual attachment message blocks.
4. Durable generic job and append-only job-event records.
5. Code Interpreter submission, progress stream, cancellation, reusable session and fake-provider path.
6. Explicit scoped memory CRUD.
7. Versioned draft skill-contract storage.
8. Persistent user behaviour settings.
9. Authenticated detailed readiness, owner counts and audit-log view.
10. Updated native-style mobile surfaces and PWA cache versioning.
11. Expanded core and HTTP test catalogue.

## Explicit non-claims

- Stored file bodies are not yet encrypted at rest.
- IndexedDB drafts are not yet encrypted.
- Offline queue replay and conflict resolution are not implemented.
- Job records persist, but an interrupted in-process Code Interpreter thread is not automatically re-leased after restart.
- Advanced modules remain placeholders unless the implementation matrix marks them operational.
- Production Nginx, systemd, remote backup and load/device certification have not been executed in this packaging environment.