generated: '2026-08-25'
method: searched
source: >-
  https://developers.ledger.com/docs/news, https://status.ledger.com/,
  https://help.enterprise.ledger.com/whats-new, and the OpenAPI documents in openapi/
versioning:
  enterprise_vault:
    scheme: document-version (unversioned paths)
    current: '1.35.0'
    source: openapi/ledger-enterprise-vault-openapi.yml
  multisig:
    scheme: uri-path
    current: v2
    also_served: v1 under /tx-service/eth/api/v1/
    source: openapi/ledger-enterprise-multisig-openapi.yml
  exchange_provider:
    scheme: per-document version
    current:
      swap: '2.0'
      buy: '1.0'
      sell: '1.0'
      earn: 1.1.0
      card: '1.0'
deprecation:
  policy_url: https://developers.ledger.com/docs/news
  sunset_header: false
  deprecation_header: false
  practice: >-
    Ledger announces deprecations on its developer "What's new" page with a named calendar date and a
    one-to-one migration table, but does not emit RFC 8594 Sunset or Deprecation response headers and
    does not mark deprecated operations in any OpenAPI document (0 of 85 Vault operations, 0 of 23
    exchange operations carry `deprecated: true`). A client therefore learns of a removal by reading
    a web page, not from the API.
  announced:
    - name: LedgerJS end-of-life
      date: '2026-09'
      breaking: true
      detail: >-
        In September 2026 the Ethereum device app drops support for signEIP712HashedMessage — the
        hashed / blind-signing variant of EIP-712 — which removes the last working path for
        @ledgerhq/hw-app-eth. All LedgerJS packages (hw-app-*, hw-transport-*) are deprecated from
        that date, and applications that have not migrated to the Device Management Kit will be
        unable to sign EIP-712 typed data on Ledger devices.
      migration:
        '@ledgerhq/hw-app-eth': '@ledgerhq/device-signer-kit-ethereum'
        '@ledgerhq/hw-app-btc': '@ledgerhq/device-signer-kit-bitcoin'
        '@ledgerhq/hw-app-solana': '@ledgerhq/device-signer-kit-solana'
        '@ledgerhq/hw-transport-webhid': '@ledgerhq/device-transport-kit-web-hid'
        '@ledgerhq/hw-transport-web-ble': '@ledgerhq/device-transport-kit-web-ble'
        '@ledgerhq/hw-transport-node-hid': '@ledgerhq/device-transport-kit-node-hid'
      source: https://developers.ledger.com/docs/news
    - name: LedgerJS marked legacy in the portal
      breaking: false
      detail: >-
        The developer portal lists "LedgerJS (deprecated)" under Optional reading with the note
        "Legacy library — no longer maintained; migrate to DMK".
      source: https://developers.ledger.com/llms.txt
  stability_warnings:
    - surface: Ledger AI tools (wallet-cli, DMK skills)
      note: >-
        Ledger labels both agent surfaces as early development — "Breaking changes may happen between
        releases" — on https://developers.ledger.com/docs/ai-tools/overview.
    - surface: '@ledgerhq/device-transport-kit-web-ble, -node-hid'
      note: >-
        Both npm READMEs carry "[!CAUTION] This is still under development and we are free to make
        breaking changes".
status_page: https://status.ledger.com/
status_page_provider: Atlassian Statuspage
sla:
  url: null
  uptime_target: null
  note: >-
    No public SLA or uptime commitment is published for any Ledger API. Ledger Enterprise SLAs are
    presumably contractual; nothing is reachable without a sales conversation.
deprecated_operations: []
deprecated_operations_note: >-
  Zero operations across all seven harvested specs carry `deprecated: true`, including the LedgerJS
  surface Ledger has publicly announced for September 2026 removal. The deprecation is real; it is
  simply not expressed in the machine-readable contract.
changelog:
  developer: https://developers.ledger.com/docs/news
  enterprise: https://help.enterprise.ledger.com/whats-new
  see: changelog/ledger-changelog.yml