📣Product Announcements
A page detailing any newsworthy announcements for the OS Download data products.
2026 Product announcements
ℹ️ March 2026 – Update to OS MasterMap Topography Layer to improve the accuracy of position attributes
We're updating the OS MasterMap Topography Layer product to improve the accuracy of position attributes. As a result, some releases may include a higher‑than‑usual volume of changes relating to positional accuracy and associated metadata (for example, Reason for change). Feature geometry and other attribution remain unchanged by this update.
Where is this happening?
Updates for Scotland have been completed. Similar updates for England and Wales will be rolled out in phases in future releases.
What is changing?
You may notice an increase in change-only updates (COU) compared to a typical release. This increase reflects data quality improvements rather than a change in physical features.
What product is impacted?
These updates apply to OS MasterMap Topographic Line only. OS NGD products are not affected by this change.
Why is the product changed?
This update is part of our ongoing work to ensure OS MasterMap Topography Layer continues to meet expected standards of positional accuracy and reliability.
ℹ️ March 2026 – OS MasterMap Water Network Layer has reached End of Life
The OS MasterMap Water Network Layer product (also referred to as OS MasterMap Networks – Water Layer) reached its End of Life on 31 March 2026. As of this date, Ordnance Survey ceased to maintain or publish updates to the product, and access to the product for customers was removed from the OS Data Hub, OS Features API and OS Vector Tile API.
Existing customers of the product will be able to access their pre-existing OS MasterMap Water Network Layer data packages and download orders from their OS Data Hub account for up to 12 months from the date those packages and orders were created.
Supporting technical documentation about the product will be removed from this documentation site in April 2027 (i.e. 12 months after the date the product became End of Life, and after access to existing data packages on the OS Data Hub for existing customers is no longer available).
Further information, FAQs, and details about the recommended product migration pathway are available on the OS MasterMap Water Network Layer End of Life information page.
ℹ️ OS MasterMap Greenspace Layer will become End of Life in 2027
The OS MasterMap Greenspace Layer product will become End of Life on 31 March 2027. As of this date, Ordnance Survey will cease to maintain or publish updates to the product, and access to the product will be removed from the OS Data Hub, OS Features API and OS Vector Tile API.
Further information and details about the recommended product migration pathway are available on the End of Life Notice – OS MasterMap Greenspace Layer page.
2025 Product announcements
ℹ️ December 2025 – Portfolios reorganisation
We have changed the way we categorise our products to make it easier for you to find them. The new portfolio names have been refined to be more intuitive and less specialist. For example, the Contextual or Derived Mapping Portfolio is now called the Maps and Imagery Portfolio. You'll notice the new portfolio names on the left-hand-side menu of the site.
Product documentation has been moved accordingly into the updated portfolios. Certain products can appear in multiple portfolios, but the product's documentation will only appear in its primary portfolio (for example, links to the OS MasterMap Topography Layer documentation now appear in four portfolios, but it's documentation is located in its primary portfolio – the Maps and Imagery Portfolio).
The following cards contain a complete list of all Download products included in the renamed portfolios:
Addresses and Names
AddressBase AddressBase Core AddressBase Plus AddressBase Plus Islands AddressBase Premium AddressBase Premium Islands Code-Point Code-Point Open Code-Point with Polygons OS Emergency Services Gazetteer OS Open Names OS Open UPRN Points of Interest
Areas and Zones
Boundary-Line Code-Point Code-Point Open Code-Point with Polygons OS Open Built Up Areas
Buildings and Infrastructure
OS MasterMap Topography Layer OS MasterMap Topography Layer – Building Height Attribute OS Open Linked Identifiers OS Open TOID
Land and Terrain
OS MasterMap Greenspace Layer OS MasterMap Sites Layer OS MasterMap Topography Layer OS Open Greenspace OS Open Linked Identifiers OS Open TOID OS Terrain 5 OS Terrain 50
Maps and Imagery
1:25 000 Scale Colour Raster 1:50 000 Scale Colour Raster 1:250 000 Scale Colour Raster GB Overview Maps MiniScale OS MasterMap Imagery Layer OS MasterMap Topography Layer OS Open Zoomstack OS OpenMap – Local OS VectorMap District OS VectorMap Local
Upcoming products
Our upcoming products span multiple product portfolios and are introduced early in their lifecycle to inform customers and OS Partners, gather insights on their use, and validate their value for potential future full releases. Products in development at this phase of the lifecycle will be provided as prototype, alpha or beta builds with varying levels of availability and completeness.
Below, you’ll find details of our current upcoming products:
December 2025 – Update to AddressBase Core schedule due to festive shutdown
Please note that there will be no release of AddressBase Core on 30 December 2025 due to the festive shutdown period. Customers with Change-Only Update (COU) orders will not receive any change for that week. Releases on 23/12/25 and 06/01/26 remain unaffected.
Updates will resume following the AddressBase Core product refresh schedule on the week commencing 05 January 2026 and will include 2 weeks’ worth of change.
AddressBase, AddressBase Plus and AddressBase Plus Islands products will become End of Life in 2027
The AddressBase, AddressBase Plus and AddressBase Plus Islands products will become End of Life on 29 November 2027. As of this date, Ordnance Survey will cease to maintain or publish updates to these products.
Further information and details about the recommended product migration pathway to the OS National Geographic Database (OS NGD) are available on the End of Life Product Notices page.
July 2025 – Tunnel interactions data added to the OS Emergency Services Gazetteer
Tunnel interactions data is now available in the OS Emergency Services Gazetteer (OS ESG) product; the data provide enhanced attribution for Tunnel features and identify interactions between any networks passing through (for example, a Pedestrian Tunnel Or Subway) a tunnel.
In addition to the enhanced attribution, ten new classification codes have been added to the product to give an overview of the type of network that passes through or used to pass through (for example, a Rail Tunnel) a tunnel.
The new tunnel interactions data will give Emergency Services the ability to better:
Pinpoint and verify the location of an incident
Analyse trends and patterns of incidents to help identify risks and support incident planning
Provide better situational awareness.
Provide precise incident reporting
Analyse road traffic collisions to identify attributes of risk
Accurately record incidents to support case preparation for court
June 2025 – Documentation available for new OS Maps for Power BI Visual beta product
Documentation, including a Getting Started Guide and FAQs, is now available for the new OS Maps for Power BI Visual beta product.
OS Maps for Power BI Visual is a stand-alone beta product for creating high-quality and insightful maps within Power BI, utilising OS mapping data. It's a highly flexible product, satisfying a wide range of use cases for customers through the creation of point and choropleth maps.
March 2025 – OS Product Roadmap now available
The OS Product Roadmap is now available to view on the OS website (we've added a link to the roadmap to this site in the Resources section).
The roadmap has details of new Download product releases (for Premium and OpenData products) and upcoming OS National Geographic Database (OS NGD) releases, plus dates for planned product withdrawals as they reach their End of Life stage.
OS MasterMap Water Network Layer product will become End of Life in 2026
The OS MasterMap Water Network Layer product (also referred to as OS MasterMap Networks – Water Layer) will become End of Life on 31 March 2026. As of this date, Ordnance Survey will cease to maintain or publish updates, and access to the product will be removed from the OS Data Hub, OS Features API and OS Vector Tile API.
Further information and details about the recommended product migration pathway are available on the new End of Life Product Notices page.
January 2025 – A Guide to Coordinate Systems in Great Britain has moved
Our in-depth guide on using coordinate systems with OS Mapping, A Guide to Coordinate Systems in Great Britain, has been moved to our More than Maps platform alongside other deep dives and tutorial content covering the application of OS data.
2024 Product announcements
December 2024 – Update to AddressBase Core schedule due to festive shutdown
Please note that there will be no release of AddressBase Core on 31 December 2024 due to the festive shutdown period. Releases on the 24/12/24 and 07/01/24 remain unaffected.
December 2024 – Documentation available for new OS 3D Mesh beta product
Documentation, including an Overview and Getting Started Guide, is now available for the new OS 3D Mesh beta product.
OS 3D Mesh is a stand-alone product providing a photorealistic three-dimensional representation of the surface of the Earth and any features sitting above it, such as buildings, roads, and vegetation. The 3D mesh provided by this product can be used to visualise an area (for example, for urban planning and citizen engagement) or for analytical tasks such as line-of-sight analysis for the telecommunications and security sectors. OS 3D Mesh is derived from aerial imagery captured as part of our national imagery capture programme.
December 2024 – Bridge interactions data added to the OS Emergency Services Gazetteer
Bridge interactions data is now available in the OS Emergency Services Gazetteer (OS ESG) product; the data provide enhanced attribution for Bridge features and identify interactions between any networks passing over (for example, a footbridge, an aqueduct) and / or under (for example, a canal) a bridge.
In addition to the enhanced attribution, 54 new classification codes have been added to the product to give an overview of the type of networks that cross over and / or under bridges (for example, Footbridge Over Canal).
The new bridge interactions data will give Emergency Services the ability to better:
Pinpoint and verify the location of an incident
Analyse the trends and patterns of incidents to help identify risks and support incident planning
Provide situational awareness
Report on incidents
Dispatch and deploy to accurate locations
Perform quick and accurate gazetteer searches
November 2024 – OS MasterMap Product Viewer Tool
We've added links to the OS MasterMap Product Viewer Tool to this site. The tool lets you visualise product sample data online for three areas (Exeter, Newport and Inverness).
Sample data for numerous products is available through the tool, including AddressBase Premium, OS MasterMap Topography Layer, OS Open Roads, OS Open Zoomstack, amongst others. Where the tool is available for a product, we've indicated this on the product's landing page on this site and included a link to the tool.
March 2024 – Product withdrawal for OS MasterMap Highways Network with Speed Data
The OS MasterMap Highways Network With Speed Data product was withdrawn from use in March 2024. Documentation for the product has been removed from this site accordingly.
Average speeds and indicative speed limits are available to access directly from the OS National Geographic Database (OS NGD) Transport Theme. The replacement OS NGD datasets make it easy to analyse travel times and provide accurate insight for safety and infrastructure policy decisions. The OS NGD datasets are available under the Public Sector Geospatial Agreement (PSGA).
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