CBA-KB v2.0.4-2

CBA-KB v2.0.4-2 Engine Release

1. Release Identity

• Release Tag: v2.0.4-2
• Target Commit: 74f8987934423a56c50c7e734528b03bdb75e7ec
• Source Package Version: 2.0.2 (in pyproject.toml / src/cba_kb/__init__.py; package version alignment tracked under release lifecycle)
• Dependency Lock SHA-256: 9dfa4d8f3110ec5192053aa0083c85eb6b0a4b085001ad9e7673282a86cc0d94 (requirements.lock)

2. Functional Capabilities Delivered

• Dual-Backend Support (F1, F2): Local filesystem and Google Drive integration, Changes API polling, durable checkpoint tracking.
• Evidence & Identity Separation (F3, F4): Strict separation of Source, Document, Statement, Claim, and Fact. WAL journaled state machine with transaction crash recovery.
• Rights-Aware Search (F5): Visibility-gated search engine; unverified or restricted content fails closed and is quarantined from public results.
• Guarded Plans & Safety (F6, R5): Deterministic move/retain planning with parent set verification and PlacementGuard enforcement.
• Observability & Multi-Backend Metrics (F7, R1–R4, R7): Standardized 11-column inventory, orthogonal lifecycle states, independent metrics for processing rate, archive rate, and query rate.
• E2E Golden Paths (F8, A1–A6, AC01–AC08, GAT01–GAT08): 10 synthetic test sample categories, automated idempotence, clean-room smoke pass.

3. Release & Operational Boundary Notice

• Engine Release vs Data Production: This GitHub Release publishes the open-source CBA-KB Engine. Historical production data releases remain preserved at their respective canonical baseline (v2.0.1-1).
• Production Deployment Status: Target host execution operates under restricted read-only discovery and polling; no unauthorized production data modifications or batch re-classifications are performed.
• Final Acceptance: Repository maintenance items (CODEOWNERS comments, Issue lifecycle, documentation alignment) and final Consumer Acceptance are being finalized through standard governance.