# V4 Final Polish and Year-5 Sunset Plan

`V4/release/final-polish-readiness.json` is the source of truth for final P3
signoff. It records a reviewed evidence row for every P3 stretch section (`§126`
through `§139`), verifies that deferred polish is closed, and binds the year-5
game-as-service sunset plan to the launch date.

## Final Polish Gate

- Every P3 section must have `status: reviewed`, at least one existing evidence
  file, and no blocker count.
- Deferred polish must report `openDeferredItemCount: 0`.
- `V4/V4_TODOS.md` may only retain the template unchecked example outside
  implemented sections.
- `pnpm -F @v4/scripts final-polish-check` is the release signoff command and
  fails closed until `V4/release/final-polish-execution-evidence.json` contains
  a fresh, coherent production run.
- Preflight runs `pnpm -F @v4/scripts final-polish-check -- --structure-only` so
  static contract defects are caught before the self-hosted UE job creates its
  evidence. Structural success does not claim production execution readiness.
- Static manifests and deterministic commentary templates are structural
  evidence only. They do not prove Calliope or Psyche provider execution.
- Production evidence must bind real Calliope prose to factual match events,
  bind live Psyche audio to that exact script, and retain consent, opt-out,
  watermark, provenance, localization, native-speaker, bias-review, and review
  queue receipts.
- The same evidence package must embed a successful `oshun.unreal-evidence.v1`
  run for `V4/ue/V4.uproject` using the exact `ue55-linux` editor, `ueagent`,
  and `LinuxEditor`, with passing report rows for adaptive-director bounds,
  procgen connectivity/placement, replay, and commentary integration. A skipped
  run or an artifact name alone is not evidence.

## Year-5 Sunset

V4 launches on `2026-10-01T16:00:00Z`; the planned service end date is
`2031-10-01T16:00:00Z`.

The plan requires a 12-month public announcement, entitlement and replay archive
exports, platform-compliant refund and entitlement handling, ranked/live-ops
wind-down, DSAR/delete priority, offline-mode preservation, and a final public
archive of wiki, balance ledger, roadmap, and partnership disclosures.