generated: '2026-09-05'
method: searched
source: >-
  https://openmldb.ai/docs/en/main/maintain/upgrade.html, https://openmldb.ai/docs/en/main/about/index.html,
  https://github.com/4paradigm/OpenMLDB/releases, https://openmldb.ai/docs/en/main/ (version switcher),
  https://motus.phanthy.com/en/updates and https://github.com/4paradigm/openaios-platform — all fetched
  or queried 2026-09-05; plus the operations declared in openapi/ and grpc/
name: 4Paradigm API lifecycle
summary: >-
  No deprecation policy, no sunset policy, no SLA and no status page exist for any 4Paradigm surface.
  Nothing is self-hosted-with-a-vendor-promise here: the operator runs the software and carries the
  availability risk, which is coherent — but it also means an integrator has nothing to plan against
  except release cadence, and the release cadence of two of the three products is zero.
versioning:
  policy_published: false
  scheme: semantic versioning on OpenMLDB releases; date+sha image tags on PhanthyMotus; 0.0.x
    OpenAPI info.version on OpenAIOS-Platform
  docs: https://openmldb.ai/docs/en/main/maintain/upgrade.html
  note: >-
    The OpenMLDB documentation site keeps every minor line back to v0.4 online (/docs/en/v0.4/ …
    /docs/en/v0.9/, plus main), which is the closest thing 4Paradigm publishes to a version-support
    statement — and it is documentation retention, not a support commitment.
deprecation:
  policy_published: false
  sunset_header: false
  deprecation_header: false
  rfc8594: false
  deprecated_operations: []
  note: >-
    Not one of the 57 published REST operations carries `deprecated: true`, and no Sunset or Deprecation
    response header is declared or documented anywhere. The only lifecycle signal in the contracts is
    the informal "[Alpha]" prefix the OpenMLDB docs put on the Go SDK, the C++ SDK, the Kubernetes
    backends and the cross-datacenter disaster-recovery feature.
alpha_and_experimental:
- feature: OpenMLDB Go SDK
  status: alpha
  evidence: https://openmldb.ai/docs/en/main/quickstart/sdk/go_sdk.html
- feature: OpenMLDB C++ SDK
  status: alpha
  evidence: https://openmldb.ai/docs/en/main/quickstart/sdk/cxx_sdk.html
- feature: Server-side authentication
  status: alpha, disabled by default
  evidence: https://openmldb.ai/docs/en/main/deploy/auth.html
- feature: Offline engine on Kubernetes; online engine on Kubernetes
  status: alpha
  evidence: https://openmldb.ai/docs/en/main/deploy/offline_integrate_kubernetes.html
- feature: Cross-datacenter disaster recovery
  status: alpha
  evidence: https://openmldb.ai/docs/en/main/maintain/multi_cluster.html
- feature: OpenMLDB APIServer (the whole REST surface)
  status: not recommended for production
  evidence: >-
    https://openmldb.ai/docs/en/main/quickstart/sdk/rest_api.html — "APIServer is mainly used for
    functional testing, not recommended for performance testing, nor recommended for the production
    environment. The default deployment of APIServer does not have a high availability mechanism".
    The provider deprecating its own REST surface for production use is the single most important
    lifecycle fact in this record.
status_page:
  published: false
  note: >-
    No status.4paradigm.com, no statuspage.io tenant, no incident history. There is nothing hosted to
    have a status page for.
sla:
  published: false
support:
  channels:
  - GitHub issues on each project repository
  - OpenMLDB community page — https://openmldb.ai/docs/en/main/about/community.html
  - business@4paradigm.com (commercial), pr_co@4paradigm.com (media), ir@4paradigm.com (investors)
  - '+86.400.898.7788'
maintenance_state:
  openmldb:
    state: slowing
    last_release: '2025-02-21'
    last_commit: '2026-09-01'
    note: Commits continue on main; no tagged release for 18 months.
  openaios_platform:
    state: dormant
    last_commit: '2021-08-20'
    note: >-
      The repository that carries the only OpenAPI contracts in this record has not been touched since
      2021. The contracts are real and first-party; they describe software that is no longer maintained.
  phanthymotus:
    state: active
    last_commit: '2026-09-05'
    note: Daily image builds, near-daily changelog entries, an expanding hardware ecosystem.