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HMRC CDS CHANGE WATCH · SOURCE-STAMPED · FREE

CDS changes, translated into the next check.

Search 5 source records across service status, known workarounds, technical documentation, document codes and aggregation. Each record leads with the change, the workflow it may touch and the next check.

5 EXACT RESPONSES RETAINED5 NARROW SOURCE FACTS0 AUTO-PUBLISHED DIFFS

USE THE CHANGE, THEN CHECK THE SOURCE

One operational register. No hunting across update histories.

The Radar consolidates substantive CDS changes that have a durable operator use. It does not create one thin page per error code or turn a source byte-change into an automatic claim.

Freshness is calculated in your browser from the retained observation. A stale or expired record stays useful as history, but it cannot present itself as a green live status.

SEARCH THE REGISTER

Find the change in your workflow.

5 RECORDSUPDATED 17 JULY 2026

SERVICE STATUS · POINT-IN-TIMECURRENT OBSERVATION

HMRC showed no listed CDS downtime or service issues at 18:08 UTC on 17 July

At 18:08 UTC on 17 July 2026, HMRC's CDS availability page showed no planned downtime and no service issues. The page's latest recorded update was 9 July 2026.

OBSERVED 17 July 2026 at 18:08 UTC

KNOWN ERRORS · WORKAROUND RELEASECURRENT OBSERVATION

HMRC published CDS consolidated workarounds release 5.2.0

HMRC's 4 July update identifies consolidated workaround document 5.2.0 and says its Known Error Log changes cover additions, amendments, and resolutions through 25 June 2026.

OBSERVED 17 July 2026 at 18:08 UTC

SOFTWARE INTEGRATION · TECHNICAL RELEASECURRENT OBSERVATION

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.

OBSERVED 17 July 2026 at 18:08 UTC

DOCUMENT CODES · REFERENCE DATACURRENT OBSERVATION

CDS document code 9001 updated for UK-India FTA use from 15 July

HMRC updated national document code 9001 on 13 July to reflect use under the UK-India Free Trade Agreement from 15 July 2026.

OBSERVED 17 July 2026 at 18:08 UTC

AGGREGATION · PARTY IDENTIFICATIONCURRENT OBSERVATION

HMRC updated CDS aggregation guidance for EU EORIs in specified data elements

HMRC's 1 July update says Data Element 2/1 was changed to reflect that EU EORIs can be declared in certain data elements from 4 July 2026.

OBSERVED 17 July 2026 at 18:08 UTC

UNGATED DATA

Take the Radar into your change review.

Download the 5 public records with source URLs, observation windows, workflow stages, snapshot hashes and correction state. No email wall.

JSONMACHINE-READABLE RECORDSDOWNLOAD ↓CSVCHANGE-REVIEW TABLEDOWNLOAD ↓

HOW THIS REGISTER EARNS TRUST

Exact bytes retained. Changes queued. Claims reviewed.

01 · OBSERVEFetch the official primary source at its registered cadence and retain the exact response by SHA-256.
02 · COMPAREByte-identical responses produce a verified no-change observation. Any difference becomes a candidate, never public copy.
03 · VERIFYPublish only narrow, source-faithful facts that pass the explicit review and owner-authorization fields.
04 · CORRECTKeep the old event in history and show the correction, supersession or withdrawal on the durable permalink.

FROM CHANGE TO WORKFLOW

Check the pack. Then check the numbers.

Use the free pack checker for the declaration in front of you, or bring your current minutes, volumes and exception path to a 20-minute workflow call.

FREE OPERATOR TOOLRUN THE DOCUMENT PACK CHECKOPEN TOOL →20-MINUTE WORKFLOW CALLMAP THE CHANGE TO YOUR DESKBOOK THE CALL →