| 0.5.0 | 2026-08-20 | All nine RFCs shipped: RFC-04 runtime enforcement contract + reference gate + conformance vectors, RFC-09 deterministic signed evidence bundles |
| 0.4.1 | 2026-08-20 | The twin grades itself: RFC-05 credibility scorecard with a seam gate, RFC-06 seam version ranges + provenance digests |
| 0.4.0 | 2026-08-19 | Five vNext RFCs shipped: trait distributions, extension port, module supply chain, semantic-model port, UI hints — all additive |
| 0.3.0 | 2026-07-27 | First open-source release: reference-based FLUID seam, hard validation, agentPolicy/skills/sovereignty, offline validator |
| 0.2.0 | — | Internal pre-release draft (never shipped); preserved for the diff record |
