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Changelog

Records API contract changes and dataset snapshot updates. The two are versioned independently: api_version (the contract) and dataset_version (the data snapshot, surfaced in every response meta).

:::note Live source of truth The current versions are always available from the API itself: GET /version (API + policy) and any response's meta.dataset_version (data snapshot). :::

API — v1 · stable​

Initial public contract:

  • Canonical { data, meta, links } envelope on every response; unified error shape.
  • Endpoints: strategies (list / metadata / stats / returns / curve), correlation, export, summary, dataset; infra healthz / readyz / version.
  • Modelled risk rescale via risk_pct.
  • Cache-Control + weak ETag (keyed on dataset_version) → 304 revalidation; gzip; security headers; explicit CORS allowlist.
  • Access/rate-limit seams declared but not enforced (open access).

Dataset​

dataset_versionNotes
2026-06-24T07:40:35ZInitial snapshot — 14 strategies, window 2018-08-14 → 2026-06-24, daily + weekly returns, equity curves, stats, daily/weekly correlation matrices.

New snapshots are produced by re-running the exporter; the dataset_version advances and a row is added here. Deprecations (if any) will be recorded against the API version above with Deprecation / Sunset headers per the versioning policy.