> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/os-open-zoomstack/os-open-zoomstack-known-data-issues.md).

# OS Open Zoomstack Data Issues

This page provides the details of known data issues in the OS Open Zoomstack product. Once resolved, details of a known data issue will be held until the next release of the product.

## Live known data issues

There are no live known data issues for OS Open Zoomstack at this time.

## Resolved data issues

| ​Data Issue Name               | Original Description for Data Issue                                                                     | Data Issue Resolution Date | Resolution Message                                                                                                                                                                                                             |
| ------------------------------ | ------------------------------------------------------------------------------------------------------- | -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| OS Open Zoomstack June release | The update released on **1st June 2026** was incorrectly published with data from the November release. | 22nd June 2026             | <p>OS Open Zoomstack has been republished with the correct data update. </p><p>All customers who downloaded the published data between <strong>1 June – 22 June 2026</strong> are recommended to download the data again. </p> |

{% hint style="info" %}
To report an issue not currently listed here, please visit the ['Contact us' page on the OS website](https://www.ordnancesurvey.co.uk/contact-us/business-government/use-os-data).
{% endhint %}


---

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