generated: '2026-09-16'
method: probed
source: https://underdog.shop/.well-known/ucp, https://underdog.shop/agents.md, publicApiVersions query on https://underdog.shop/api/2026-01/graphql.json
note: >-
  Underdog publishes no API versioning policy, deprecation policy, SLA, status page or
  changelog of its own. The lifecycle signals that exist are platform-served on its host:
  UCP protocol version negotiation and the Storefront GraphQL API's dated versions.
versioning:
  ucp:
    scheme: dated protocol version negotiated via /.well-known/ucp
    current: '2026-08-25'
    supported:
    - version: '2026-08-25'
      spec: https://ucp.dev/2026-08-25/specification/overview/
    - version: '2026-04-08'
      discovery: https://underdog-web.myshopify.com/.well-known/ucp/2026-04-08
    - version: '2026-01-23'
      discovery: https://underdog-web.myshopify.com/.well-known/ucp/2026-01-23
    note: Moved from 2026-04-08 (latest on 2026-08-17) to 2026-08-25 by 2026-09-16; no retirement dates are published.
  graphql:
    scheme: dated quarterly versions in the URL path
    in_use: '2026-01'
    publicApiVersions:
    - {handle: '2025-10', supported: true}
    - {handle: '2026-01', supported: true}
    - {handle: '2026-04', supported: true}
    - {handle: '2026-07', supported: true}
    - {handle: '2026-10', supported: false}
    - {handle: unstable, supported: false}
deprecation:
  policy_url: null
  sunset_header: false
  note: >-
    No deprecation policy or RFC 8594 Sunset header is published by Underdog. The
    Storefront GraphQL schema carries 51 @deprecated field/value markers, which are
    Shopify platform deprecations rather than an Underdog policy, so no Deprecation
    pointer is emitted.
deprecated_operations: []
sla:
  url: null
  uptime_target: null
status_page: null
status_page_note: >-
  Underdog publishes no status page. Shopify's platform status page belongs to a third
  party and is not recorded as Underdog's.
changelog: null
product_lifecycle:
  commercial_warranty: 24 months from delivery (CGV section 10.2)
  withdrawal: 14 days from receipt (CGV section 11)
  docs: https://underdog.shop/policies/terms-of-sale