Support & operations · Website help · Release validation

The deployed revision differs from the approved preview

The practice approves one preview, but the supplier publishes a later build containing additional unreviewed changes.

What to change

Tie approval to an identifiable release, not merely to a preview address that can change. Ask the supplier to record the reviewed revision and demonstrate that the public deployment contains it. Any additional changes should be visible as a separate review decision. This makes acceptance specific enough to reproduce and gives the owner a meaningful reference if a fault later requires restoration of the last approved version.

A worked example

Illustrative example

Illustrative test: A harmless visible test change distinguishes the approved revision from a later draft.

How to check the result

The published release matches the approval evidence and any differences are explicitly accepted.

A mistake to avoid

A reusable preview URL alone does not identify what was approved.

Your action checklist

Use these checks to prepare a discussion with your team or supplier. Tick a check when you have recorded the decision or evidence, rather than when a feature has simply been promised.

Decisions to record

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Healthcare website maintenance with infrastructure, a status panel, tools and an operational checklist.
Monitor the useful journey, not just whether a server responds.
Healthcare backup and recovery illustrated by storage copies, an archive folder and a restoration route.
Test whether a backup can restore a usable service.
Healthcare digital support handover with an inventory, key, incident timeline and dependency map.
Keep responsibilities and recovery instructions available.

Further reading

These primary sources provide additional context for the project decisions above.

Related decisions

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