specification: API Commons Lifecycle
specificationVersion: '0.1'
provider: Contensis
providerId: contensis
generated: '2026-09-06'
method: searched
source: >-
  Live probes of https://status.zengenti.cloud/ and its Instatus endpoints, the Contensis
  what's-new landing page, the published API reference at
  https://www.contensis.com/help-and-docs/apis and its markdown mirror
  https://github.com/contensis/contensis-docs, and the UK Government G-Cloud Digital
  Marketplace listings for Contensis (where Zengenti publishes its uptime and support SLA).
description: >-
  How Contensis versions, deprecates and reports on its APIs. The operational side is
  genuinely good — a live status page with a machine-readable feed and a per-component
  "APIs" indicator. The contract side is thin: no dated API changelog, no deprecation
  policy, no Sunset or Deprecation headers, and no version negotiation on the wire.
versioning:
  scheme: product-version
  current_product_version: '17.2'
  in_path: false
  in_header: false
  negotiation: none
  description: >-
    API paths are unversioned — /api/delivery and /api/management. Capability is tied to
    the version of the Contensis CMS the tenant is running, and the reference gates
    features that way in prose ("version 16+ only" for fieldLinkDepths). Historic doc URLs
    were served under a version segment (.../delivery/http/v/11.3/...). There is no header
    or endpoint by which a client can ask a tenant which version it is on, so a client
    cannot feature-detect; it has to be told out of band.
  evidence:
    - https://www.contensis.com/help-and-docs/apis/delivery-http/content/entry/list-entries
    - https://www.contensis.com/help-and-docs/whats-new
deprecation:
  policy_published: false
  sunset_header: false
  deprecation_header: false
  rfc8594: false
  deprecated_operations: []
  note: >-
    No deprecation policy, notice period, or Sunset/Deprecation header support was found
    anywhere in the API reference. None of the operations in openapi/ carry a `deprecated`
    flag. The only decay signal available is package currency — see
    packages/contensis-packages.yml, where the Razor Pages middleware last shipped in 2021
    against the 15.x line while the current clients are 17.2.0.
status_page:
  url: https://status.zengenti.cloud/
  live: true
  http_status: 200
  provider: Instatus
  machine_readable:
    - url: https://status.zengenti.cloud/api/v2/summary.json
      http_status: 200
      format: json
    - url: https://status.zengenti.cloud/history.atom
      http_status: 200
      format: atom
  subscriptions: [email, slack, microsoft-teams, google-chat, webhook, rss, atom]
  components:
    - London data centre
    - Manchester data centre
    - Help desk
    - Development environments
    - APIs
    - GitLab
    - Blocks
    - Insytful
  note: >-
    An explicit "APIs" component, a webhook subscription option and a JSON summary endpoint
    together mean an agent or monitor can consume Contensis availability without scraping.
    Observed all-operational at probe time.
  dead_alternatives:
    - url: https://contensis.statuspage.io/
      finding: >-
        Resolves 200 but redirects to Atlassian's Statuspage marketing site — not a
        Contensis status page. Do not cite it.
    - url: https://status.zengenti.io/
      finding: DNS does not resolve. Named in third-party search results; do not cite it.
sla:
  published: true
  uptime: 99.9% to 99.99% depending on licence type
  scope: websites published from Contensis
  support:
    critical: 24/7/365
    other: business hours, tiered by ticket priority
  source: >-
    Zengenti's own G-Cloud service definitions on the UK Digital Marketplace
    (applytosupply.digitalmarketplace.service.gov.uk). The SLA is published to buyers
    through the government framework rather than on contensis.com.
  note: >-
    No SLA is published on the developer documentation, and none is expressed as an API
    availability figure — the commitment is to published websites.
changelog:
  api_changelog: false
  whats_new: https://www.contensis.com/help-and-docs/whats-new
  detail: changelog/contensis-changelog.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com