SOFTWARE INTEGRATION · TECHNICAL RELEASE · HMRC SOURCE RECORD
HMRC linked a CDS technical documentation package dated 9 July 2026
HMRC's developer guide linked a 54.4 MB CDS technical documentation package dated 9 July 2026 for Community System Providers and third-party software developers.
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| STAGE | WHAT MAY CHANGE | NEXT CHECK |
|---|---|---|
| NOTIFICATIONS | Package changes may affect notification or status-query implementation details. | Include notification and query journeys in the package-diff review and regression suite. |
| SOFTWARE INTEGRATION | The dated package is the latest technical-documentation bundle linked by HMRC at capture time. | Record the artifact version and compare technical files before changing an integration. |
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- PUBLISHER
- HM Revenue & Customs
- SOURCE LOCATOR
- Technical Documentation; CDS Technical Documentation package metadata
- SOURCE UPDATED
- 9 July 2026 at 00:00 UTC
- RESPONSE
- 28,765 BYTES · text/html
- SHA-256
042d6f4f8f711e0371d159421d1d483a6bde808a67bfe6c092a7a9ed893f6128- LICENCE
- Open Government Licence v3.0
Review label: source checked by the named Declarix verification agent codex-radar-source-verifier and owner-authorized for a narrow primary-source fact. This is not labelled as human customs interpretation; broader conclusions stay outside this record.
What changed in this record.
- CREATED
Source-backed record created as a gated draft.
- UPDATED
Exact response re-observed; narrow source fact cleared for publication.