> 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/areas-and-zones-portfolio/os-open-built-up-areas/release-notes/april-2026.md).

# April 2026

As referred to in the [OS Open Built Up Areas Overview](/os-downloads/products/areas-and-zones-portfolio/os-open-built-up-areas/os-open-built-up-areas-overview.md), following the **April 2026** release, the product is scheduled to be released every two years.

## Known data issues

There are known issues in the April 2026 release of the product where a small number of place names are incorrectly labelled as Welsh, for example, Overton (Wrexham) and Newborough (Newtown) are currently shown as Welsh when this is not correct.

We are actively working to resolve these issues for an interim release to then resupply.

## Next release

The next release of OS Open Built Up Areas is scheduled for **April 2028**.


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