review-wave-8 — the pre-release gate passes: one contract-observable divergence found and fixed (pg's negative-seed GREATEST clamp + offsets CHECK contradicted ADR-023 §2's stored-checkpoint annotation; raw seed now, window open until first publish); the close-out's registered suite-duty follow-up discharged (negative heartbeat(extend) leg in job_handle_validity_predicate, negative save_offset seed leg in receiver_close_and_save_arms — stamped, uniform, green on all three columns vs the live harness server); the class-1 termination of record landed in ADR-017 §2 (no undisposed candidate remains; the window closes permanently at the first cargo publish); release-facing spec set flipped stable with dated gate annotations (core-contract, overview, queues, deployment current, the architecture README — Current State through wave 8, engine-mem's table row corrected); implementation.md records updated; N-1/Findings 2–3/flake/publish-prep audits recorded; all gates re-run green incl. fuzz replay, wasm32, doc gate

docs/architecture/README.md

@@ -1,8 +1,9 @@
 ---
-status: draft
-last_updated: "2026-10-10 (ADR-024: the mem engine adopted as a third
-engine — engine-mem.md added, ADR table row, index updated for the
-implementation phase)"
+status: stable
+last_updated: "2026-10-11 (the wave-8 review gate passed — pre-release
+freeze: the release-facing spec set flipped stable, Current State
+refreshed through wave 8; the class-1 window's dispositions complete,
+the window terminates at first publish)"
 ---
 
 # alkstore — Architecture
@@ -14,29 +15,38 @@ engine native underneath (see [overview.md](overview.md)).
 
 ## Current State
 
-**Phase 1 (Implementation) — waves 1–5 implemented and reviewed.**
+**Phase 1 (Implementation) — waves 1–8 implemented and reviewed; the
+pre-release gate passed (2026-10-11).**
 Phase 0 is complete (`docs/research/phase-0.md`): both POCs ran and
 passed, the scope inventory is confirmed, and the crate split,
 drivers, and ownership postures are decided. All open questions are
 resolved (through ADR-023), and the engine specs flipped `stable` at
-the wave-5 review gate. Waves 1–5 (core, substrate fork, SQLite
-engine, Postgres engine, contract suite) are implemented and reviewed
-per `docs/plans/implementation.md`. The mem engine was adopted as a
-third engine by [ADR-024](decisions/024-mem-engine.md) (2026-10-10,
-wave 6 — release readiness renumbered to wave 7).
+the wave-5 review gate, the mem spec at wave 6. Waves 1–7 (core,
+substrate fork, SQLite engine, Postgres engine, contract suite, mem
+engine, fuzzing) are implemented and reviewed; wave 8 (release
+readiness: crate docs, the deployment matrix's final pass, the
+README, publish prep — with N-1's growth-posture acceptance, review
+003 Findings 2–3, the flake investigation, and the class-1 window's
+last dispositions riding it) passed its review gate on 2026-10-11.
+ADR-024 adopted the mem engine as a third engine (2026-10-10,
+[ADR-024](decisions/024-mem-engine.md)). The class-1 amend-in-place
+window ([ADR-017](decisions/017-contract-versioning.md) §2)
+dispositions are complete; the window terminates permanently at the
+first `cargo publish` of `alkstore` — the gate's blessing covers
+publishing.
 
 ## Architecture Documents
 
 | Doc | Status | Purpose | Key OQs |
 |---|---|---|---|
-| [overview.md](overview.md) | draft | Crate family, feature surface, non-goals, evidence base | — |
-| [core-contract.md](core-contract.md) | draft | The unified trait surface, delivery guarantees, tx seam | OQ-10 (resolved) |
+| [overview.md](overview.md) | stable | Crate family, feature surface, non-goals, evidence base | — |
+| [core-contract.md](core-contract.md) | stable | The unified trait surface, delivery guarantees, tx seam | OQ-10 (resolved) |
 | [engine-sqlite.md](engine-sqlite.md) | stable | SQLite engine: forked-substrate/rusqlite mapping | OQ-06 (resolved), OQ-12 (resolved), OQ-13 (resolved) |
 | [engine-postgres.md](engine-postgres.md) | stable | Postgres engine: tokio-postgres/LISTEN mapping | OQ-08 (resolved), OQ-12 (resolved), OQ-13 (resolved) |
-| [engine-mem.md](engine-mem.md) | draft | Mem engine: in-process ephemeral mapping of the contract ([ADR-024](decisions/024-mem-engine.md)) | — |
-| [queues.md](queues.md) | draft | Queue/scheduler/outbox semantics depth (resolved: ADR-009/ADR-010) | OQ-05 (resolved), OQ-09 (resolved), OQ-06 (resolved) |
-| [deployment.md](deployment.md) | draft | Host semantics, connection budgets, knobs, matrix | OQ-08 (resolved) |
-| [open-questions.md](open-questions.md) | draft | OQ tracker (promoted from OQ-ST register) | — |
+| [engine-mem.md](engine-mem.md) | stable | Mem engine: in-process ephemeral mapping of the contract ([ADR-024](decisions/024-mem-engine.md)) | — |
+| [queues.md](queues.md) | stable | Queue/scheduler/outbox semantics depth (resolved: ADR-009/ADR-010) | OQ-05 (resolved), OQ-09 (resolved), OQ-06 (resolved) |
+| [deployment.md](deployment.md) | stable | Host semantics, connection budgets, knobs, matrix | OQ-08 (resolved) |
+| [open-questions.md](open-questions.md) | draft | OQ tracker (promoted from OQ-ST register) — the register's own lifecycle; the question set is closed | — |
 
 ## Architecture Decision Records