generated: '2026-08-29'
method: searched
source: >-
  openapi/g2-api-v2-openapi.yaml, https://documentation.g2.com/docs/developer-portal,
  https://documentation.g2.com/docs/release-notes-2026
provider: G2
providerId: g2
versioning:
  style: path
  current: v2
  path_prefix: /api/v2
  spec_version: v2
  predecessor: >-
    A v1 surface is implied by the /api/v2 prefix but no v1 contract is published and no
    migration guide was found.
deprecation:
  policy_published: false
  deprecated_operations: 0
  evidence:
    - No operation in either OpenAPI document carries `deprecated: true`.
    - No Sunset (RFC 8594) or Deprecation header is declared on any response.
    - No deprecation, sunset or breaking-change policy page was found on documentation.g2.com.
  note: >-
    An agent has no programmatic warning that an operation is going away. This is a real gap,
    not an absence of change — the 2026 release notes show continuous platform change.
status_page:
  published: false
  evidence:
    - url: https://status.g2.com/
      status: 403
      note: >-
        Resolves to Cloudflare and returns a JS interstitial to every client, including a
        browser User-Agent. No status content was reachable and no status host is linked from
        the docs, the developer portal or the API reference.
    - url: https://g2.statuspage.io/
      status: 200
      note: Redirects to /inactive — G2's Atlassian Statuspage is not active.
  note: >-
    No StatusPage pointer is emitted. Recording a status page here that no client can read
    would credit G2 with an operational surface it does not currently serve.
sla:
  published: false
  note: No API uptime or support SLA is published; commitments sit inside the sales contract.
token_lifecycle:
  access_token_expiry: 1 year from creation
  renewal: Manual regeneration in the G2 Developer Portal
  oauth_refresh: refresh_token grant supported (well-known/g2-openid-configuration.json)
  source: https://documentation.g2.com/docs/developer-portal
change_communication:
  changelog: https://documentation.g2.com/docs/release-notes-2026
  history: 2021, 2022, 2023, 2024, 2025, 2026 release-note pages
  cadence: Monthly entries grouped by quarter
  scope: >-
    Product release notes for the whole G2 platform. API-specific breaking changes are not
    called out separately, so the changelog is not a substitute for a deprecation policy.
  see_also: changelog/g2-changelog.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com