# GEARA 0.1 RC1 Release Notes

**Release identifier:** `GEARA-0.1-RC1`  
**Artifact stage:** `GEARA-A15`  
**Release status:** Executable Release Candidate  
**Specification version:** `0.1`  
**Closure date:** 2026-10-04

## Scope

GEARA 0.1 RC1 closes the first complete executable formalization of the Generic Enterprise Analytics Reference Architecture. The release candidate preserves the human-readable GEARA 0.1 specification as normative architectural authority and supplies canonical architecture/relationship registries, invariant catalogue, conservative RDF/OWL and SHACL representations, JSON-LD and JSON Schema exchange structures, governed Profile schema, examples, positive and negative testcases, automated conformance tooling, cross-artifact reconciliation, regression protection, and release-candidate closure evidence.

## Established artifact programme

1. **A1 — Canonical Architecture Registry** — 259 GEARA-owned architecture elements.
2. **A2 — Architecture Relationship Registry** — 84 canonical relationships across 11 families.
3. **A3 — Architecture Invariant Catalogue** — 123 normative `GEARA-INV-*` invariants.
4. **A4 — RDF / OWL Representation** — conservative formal representation without automatic semantic/authority strengthening.
5. **A5 — JSON-LD Context** — explicit compact terms with no default `@vocab`.
6. **A6 — SHACL Constraint Layer** — 24 executable NodeShapes covering safely detectable fragments of 21 Hybrid invariants, with Architecture Assessment preserved.
7. **A7 — Structural JSON / JSON-LD Schema** — Draft 2020-12 structural validation.
8. **A8 — GEARA Profile Schema** — governed Profile declaration, tightening, contextualization, specialization, and Extension structure.
9. **A9 — Canonical Example Set** — 13 informative examples covering CP1-CP10 plus mapping, Profile, and multi-pattern composition.
10. **A10 — Positive Test Cases** — 21 deterministic expected-PASS cases.
11. **A11 — Negative Test Cases** — 49 deterministic expected-FAIL cases across structural, architecture-semantic, and Profile-invalid bands.
12. **A12 — Automated Conformance Runner** — 70-case manifest-driven machine-test oracle.
13. **A13 — Cross-Artifact Reconciliation** — 84 deterministic consistency checks.
14. **A14 — Regression Suite** — 33 regression checks, 102 protected A1-A13 files, and 12 mutation sentinels.
15. **A15 — Release Closure** — release manifest, checksum inventory, release notes, final candidate gate, and closure report.

## Release-candidate gate expectations

A15 requires the established machine evidence to remain:

- A12: **70 / 70** testcase expectations matched, with deterministic report output.
- A13: canonical reconciliation evidence remains **84 / 84 PASS**.
- A14: canonical regression evidence remains **33 / 33 PASS**, and its 102-file protected baseline remains intact.

## Formalization reconciliation retained in RC1

During A6 integration, A3/A4 machine-constraint coverage metadata was aligned with the executable SHACL layer: 21 invariants are `partial-executable` and the remaining 102 are `assessment-required` in the A3/A4 machine representation. The 123 normative invariant statements, requirement levels, validation classes, architecture identities, relationship semantics, and normative architectural meaning were unchanged.

A14 also formalized stage-coupled regression handling: A13's canonical 84/84 evidence and runner are preserved byte-for-byte rather than rerunning an A13 specification-status assertion against a legitimately advanced later-stage document. A15 applies the same principle to A14 while independently checking its protected baseline and current release gates.

## Known limitations and conformance boundary

GEARA 0.1 intentionally does not claim that all architecture distinctions can be proven mechanically.

- A6 provides partial executable coverage for 21 invariants; 82 additional Hybrid invariants require Architecture Assessment without a safe executable reduction, and 20 invariants are Architecture-Assessment only.
- Every A6 coverage record preserves an Architecture-Assessment requirement; machine PASS is not complete GEARA conformance.
- The A10/A11 corpus contains 44 testcases whose machine outcome still requires or continues to require Architecture Assessment; structural/Profile-invalid cases may fail before that assessment is reached.
- The packaged A12 runner includes a deterministic native executor for the exact SHACL-SPARQL subset used by GEARA-A6 and fails closed if unsupported SHACL forms appear. PySHACL remains an optional alternative engine rather than a release requirement.
- GEARA conformance is independent of GEARM semantic conformance, Product qualification, AI Product assurance, Data Product conformance, GEDRA conformance, model quality, regulatory compliance, analytical fitness, and business value unless an explicitly governed Profile composes such requirements.
- `GEARA-0.1-RC1` is an **Executable Release Candidate**, not a final `Released` publication. Promotion requires a separate governed publication decision.

## Authority and compatibility

The human-readable GEARA 0.1 specification remains the normative architectural authority. Where a machine artifact conflicts with it, the machine artifact is defective and must be reconciled rather than silently redefining GEARA.

GEARA 0.1 RC1 preserves the central boundary:

```text
GEARM defines meaning.
GEARA defines architectural responsibility for realizing that meaning.
```

and preserves, among others, the hard distinctions:

```text
GEARM Domain != GEARA Plane
Recommendation != Decision
Decision != Action
Capability != ABB != IBB
Registry != Semantic Authority
Guardrail != Gate
Fallback != Rollback
Self-Service != Ungoverned Tool Access
```