generated: '2026-06-20'
method: searched
source: >-
  AWS Comprehend documentation (developer guide, API reference, guidelines and
  quotas) and AWS Health status dashboard, reviewed 2026-06-20.
versioning:
  scheme: date-based-api-version
  current: '2017-11-27'
  detail: >-
    The Comprehend API version is fixed at 2017-11-27 (x-amazon service model
    version); the target is selected via the X-Amz-Target header
    (Comprehend_20171127.<Operation>). AWS SDKs pin this version.
  docs: https://docs.aws.amazon.com/comprehend/latest/APIReference/Welcome.html
deprecation:
  policy_url: https://docs.aws.amazon.com/comprehend/latest/dg/comprehend-availability-change.html
  sunset_header: false
  detail: >-
    AWS does not use RFC 8594 Sunset/Deprecation HTTP headers for this API.
    Feature-availability and deprecation changes are announced via the developer
    guide "feature availability change" page and AWS communications.
sla:
  url: https://aws.amazon.com/machine-learning/sla/
  uptime_target: "99.9%"
  detail: Covered by the AWS Machine Learning Services SLA.
status_page: https://health.aws.amazon.com/health/status
quotas_docs: https://docs.aws.amazon.com/comprehend/latest/dg/guidelines-and-limits.html
deprecated_operations: []
notes: >-
  No operations are marked deprecated in the current OpenAPI. AWS announced the
  end of new-customer availability for some Comprehend features; see the
  feature-availability-change page for specifics.