> 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/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/september-2026.md).

# September 2026

This release note provides information about the September 2026 release of OS MasterMap Highways Network.

## Source data currency

The following information relates to the currency of the source data used in the creation of this release of OS MasterMap Highways Network:

| Data Source                        | Date           |
| ---------------------------------- | -------------- |
| GeoPlace Streets Data              | 06 August 2026 |
| Improvement Service Streets Data   | 04 August 2026 |
| OS Road, Path, and Routing Content | 04 August 2026 |

## OS MasterMap Highways Network feature counts

| Roads’ Feature         | Count     |
| ---------------------- | --------- |
| AccessRestriction      | 37 315    |
| FerryLink              | 103       |
| FerryNode              | 132       |
| FerryTerminal          | 132       |
| Hazard                 | 43 877    |
| HighwayDedication      | 3 645 503 |
| Maintenance            | 1 333 675 |
| Reinstatement          | 1 533 454 |
| RestrictionForVehicles | 12 361    |
| Road                   | 862 128   |
| RoadLink               | 8 637 695 |
| RoadNode               | 7 660 437 |
| RoadJunction           | 6 890     |
| SpecialDesignation     | 825 869   |
| Street                 | 1 504 494 |
| Structure              | 1 418 928 |
| TurnRestriction        | 1 054 960 |

| Paths’ Feature     | Count     |
| ------------------ | --------- |
| ConnectingLink     | 2 046 238 |
| ConnectingNode     | 1 893 595 |
| FerryLink          | 120       |
| FerryNode          | 208       |
| FerryTerminal      | 208       |
| HighwayDedication  | 420 379   |
| Maintenance        | 211 356   |
| Path               | 25 592    |
| PathLink           | 3 466 152 |
| PathNode           | 4 080 973 |
| Reinstatement      | 216 530   |
| SpecialDesignation | 13 600    |
| Street             | 264 994   |

## Data issues

Please see the [OS MasterMap Highways Network Known Data Issues page](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/os-mastermap-highways-network-known-data-issues.md) for details of live and resolved data issues for the products.

## Next release

The next release of OS MasterMap Highways Network is scheduled for **October 2026**.


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