generated: '2026-08-12'
method: derived
source: components/tnlmedia-components.yml + live probes of TNL Mediagene / Ad2iction hosts
description: >-
  Versioning, deprecation and operational-transparency posture for the Ad2iction
  header-bidding surface — the only public API surface TNL Mediagene publishes.
  Everything below is either read from the adapter source or recorded as a measured
  absence. NO StatusPage and NO Deprecation pointer is emitted in apis.yml: neither
  exists.
versioning:
  scheme: request-field
  current: '3'
  evidence: >-
    The Prebid.js adapter sends a constant API_VERSION_NUMBER = 3 as the `v` field
    on every bid request. There is no URI-path or header version, and the endpoint
    URL (https://ads.ad2iction.com/html/prebid/) is unversioned.
  docs: null
  policy_published: false
  note: >-
    Version is negotiated by the adapter, not by the integrator. A publisher does
    not select a version; they take whatever version ships in the Prebid.js release
    they compile. Effective version cadence is therefore Prebid.js's release
    cadence, not Ad2iction's.
deprecation:
  policy_url: null
  policy_published: false
  sunset_header: unknown
  deprecation_header: unknown
  evidence: >-
    No deprecation or sunset policy is published on ad2iction.com, tnlmediagene.com
    or the Prebid.org bidder page. RFC 8594 header support could not be observed
    because the endpoint only answers meaningfully to a well-formed bid POST.
sla:
  url: null
  uptime_target: null
  published: false
status_page:
  url: null
  found: false
  evidence: >-
    No status.* host appears in certificate transparency for ad2iction.com, and no
    status page is linked from tnlmediagene.com, ad2iction.com or the Prebid.org
    bidder page.
changelog:
  first_party: false
  evidence: >-
    Ad2iction publishes no API changelog. Changes to the adapter are visible only as
    commits in the upstream prebid/Prebid.js repository and in Prebid.js release
    notes — a third-party record of a first-party module.
  upstream_proxy: https://github.com/prebid/Prebid.js/releases
corporate_news:
  url: https://www.tnlmediagene.com/news
  status: 200
  note: >-
    Corporate and investor news, not an API changelog. Not wired as a ChangeLog
    pointer — it records company announcements, not contract changes.
deprecated_operations: []