generated: '2026-08-06'
method: searched
source: >-
  https://felis.alice-bob.com/docs/reference/changelog/ (provider changelog),
  https://felis.alice-bob.com/docs/felis_cloud/hardware_availability_schedule/ (availability +
  live status), https://api-gcp.alice-bob.com/console/status (live backend status, 200), and
  openapi/alice--bob-felis-cloud-openapi.json for version/deprecation flags.
description: >-
  How the Felis Cloud API and the Qiskit provider that wraps it are versioned, changed and
  operated. Alice & Bob publishes a dated-by-release changelog for the CLIENT LIBRARY and a
  live status surface for the BACKENDS, but no versioning or deprecation policy for the REST
  API itself.

versioning:
  scheme: URI path prefix
  current: v1
  mechanism: /v1/ path segment on https://api-gcp.alice-bob.com/
  header: null
  spec_info_version: 0.1.0
  policy_url: null
  notes: >-
    There is no published API versioning policy, no version request header and no dated
    version train. The only stable contract signal is the /v1 path prefix; info.version in
    the OpenAPI reads 0.1.0 and has not been used as a client pin. The Qiskit provider is
    versioned independently with semver (currently 1.2.0 stable, 1.3.0b4 pre-release) and
    that is where breaking changes are actually announced.
  host_migration:
    from: https://api.alice-bob.com/
    to: https://api-gcp.alice-bob.com/
    announced_in: 'Qiskit provider changelog, version 0.7.0'
    note: >-
      "Changed default remote API URL to api-gcp.alice-bob.com instead of api.alice-bob.com,
      following the official release of Felis Cloud on Google Cloud Platform." The legacy
      host still answers (401 unauthenticated, /openapi.json 200 with an identical spec) —
      it was not sunset, only demoted.

deprecation:
  policy_url: null
  policy_published: false
  sunset_header: false
  deprecation_header: false
  rfc8594: false
  deprecated_operations: []
  notes: >-
    No deprecation policy, sunset schedule or RFC 8594 Sunset/Deprecation header is published
    for the REST API, and no operation in the OpenAPI carries `deprecated: true`. Breaking
    changes are announced only in the client-library changelog, after the fact (Python 3.7 and
    3.8 support dropped; qiskit `execute()` removed at provider 1.0.0; circuit.cnot() renamed
    to circuit.cx()). Recorded honestly — no Deprecation pointer is wired because no policy exists.

status:
  status_page: https://api-gcp.alice-bob.com/console/status
  status_page_type: Live per-backend status inside the Felis Cloud console (client-rendered)
  api_health_endpoint: GET /v1/health/
  target_health_endpoint: GET /v1/targets/{target}/health
  target_status_values: [OFF, OK, NOK]
  availability_schedule: https://felis.alice-bob.com/docs/felis_cloud/hardware_availability_schedule/
  availability_endpoint: GET /v1/targets/{target}/availabilities
  incident_channel: 'The Cat Tree (Slack community) — https://felis.alice-bob.com/docs/contact_us/'
  notes: >-
    Emulator targets are stated to be available 24/7. Quantum hardware is scheduled, and the
    docs state Alice & Bob "might need to take down the chip at any moment without advance
    notice." As of the probe, Boson 4 was recorded on the availability page as offline for a
    lengthy maintenance operation.

sla:
  url: null
  published: false
  note: >-
    No service level agreement is published on the documentation host. Commercial terms are
    carried by the Google Cloud Marketplace subscription; custom availability outside the
    public schedule is offered on request.

support:
  primary: 'The Cat Tree — Slack community (invite published at https://felis.alice-bob.com/docs/contact_us/)'
  sales_or_confidential: https://alice-bob.com/cloud-contact
  response_target: 'Within one working day (French calendar), per the contact page.'

changelog:
  url: https://felis.alice-bob.com/docs/reference/changelog/
  scope: Qiskit provider (client library), not the REST API
  detail: changelog/alice--bob-changelog.yml