generated: '2026-07-26'
method: searched
source: https://landregistry.github.io/bg-dev-pack-redesign/find-a-service-api
docs:
- https://landregistry.github.io/bg-dev-pack-redesign/find-a-service-api
- https://www.gov.uk/guidance/business-gateway-developer-pack
summary: >-
  HM Land Registry publishes no dated developer changelog and no release notes feed
  for its APIs. The only dated change record in the estate is the GOV.UK "Updates
  to this page" block that every GOV.UK guidance page carries, which tracks the
  guidance rather than the contracts. Contract change is communicated by version:
  the developer pack's per-API "Version and Status" selector marks the newest
  version "(latest)" and keeps older ones listed. What follows is the version
  ladder that can be established from the published artifacts, plus the dated
  GOV.UK page history — recorded honestly as a thin surface, not padded out.
scheme: per-contract document versions, surfaced through a version selector
feed: null
rss: null
current_versions:
  submit_an_application_to_change_the_land_register: 1.0.5 (OpenAPI 3.1.0, contract labelled v1.0)
  submit_an_application_to_change_the_land_register_previous: '0.3 (OpenAPI 3.0.1)'
  official_copy_document_availability: v2 (OpenAPI 3.0.0)
  official_copy_document_availability_previous: v1 (OpenAPI 3.0.0)
  registered_proprietor_names: 1.0.0 (OpenAPI 3.0.0)
  official_search_of_whole_with_data: 1.0.0 (OpenAPI 3.1.0)
  estimate_completion_date: 1.0.0 (OpenAPI 3.0.0)
  land_register_api: 6.0.0 (OpenAPI 3.0.1, internal)
  use_land_and_property_data: v1
entries:
- version: '1.1'
  api: Submit an application to change the Land Register
  date: null
  status: placeholder
  breaking: unknown
  highlights:
  - >-
    A v1.1 directory exists in the developer pack but both openapi.json and
    openapi.html in it are zero-byte. Re-verified 2026-07-26: HTTP 200, zero-byte
    body. The version is being staged but nothing has been published.
- version: '1.0'
  api: Submit an application to change the Land Register
  date: null
  breaking: true
  additions: true
  highlights:
  - Moved from OpenAPI 3.0.1 to OpenAPI 3.1.0.
  - >-
    Operations renamed from prose ids ("Submit an application API") to snake_case
    versioned operationIds (submit_an_application_to_change_the_register_v1) — a
    breaking change for any generated client.
  - Paths moved from /v0 to /v1.
  - >-
    Four operations added: download_a_document_v1, attach_a_document_v1,
    attach_a_message_v1, and the pre-signed download leg. v0.3 had six operations,
    v1.0 has ten.
  - >-
    Notifications gained explicit application/problem+json error bodies and, on
    download_a_document_v1, a 429 Too Many Requests response.
- version: v2
  api: Official Copy Document Availability
  date: null
  breaking: true
  highlights:
  - >-
    Base path moved from /bg2/api/v1 to /bg2/api/v2. Same single operation,
    getOfficialCopiesAvailability. v1 remains published.
  - >-
    Both versions also ship a dedicated customer-test contract
    (OpenAPI-CustTest.json) pointing at bgtest.landregistry.gov.uk.
- version: null
  api: Business Gateway developer pack
  date: '2026'
  breaking: false
  highlights:
  - >-
    The developer pack has been rebuilt. landregistry.github.io/bgtechdoc now
    redirects to landregistry.github.io/bg-dev-pack-redesign, described by HMLR as
    a "temporary home for the dev pack redesign as it is in progress". The new
    pack adds per-API technical guides and per-API test stubs, a version selector,
    a SOAP-to-REST field migration table, and a searchable API finder covering all
    21 services.
- version: null
  api: Notifications
  date: null
  breaking: false
  highlights:
  - >-
    Eleven notification types published with JSON Schemas, at-least-once delivery
    semantics and an explicit acknowledge endpoint. HMLR states more subjects
    beyond "application" will be added as the API develops.
gov_uk_page_history:
  page: https://www.gov.uk/guidance/business-gateway-developer-pack
  entries:
  - date: '2019-04-03'
    note: A link to the Business Gateway developer pack on GitHub was added.
  - date: '2014-09-19'
    note: First published.