# Product Announcements ## 2026 Product announcements ### :bridge\_at\_night: April 2026 – New weirs and slipways data added to the OS Emergency Services Gazetteer and enhancements made to Bridge Interactions data Weirs and slipways data are now available in the [OS Emergency Services Gazetteer (OS ESG)](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer) product. Two new classification codes for slipways and weirs have been added to the product. In addition, the names and / or numbers used by expert third parties to identify bridges are now provided in the OS ESG. The new 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 ### :information\_source: April 2026 – Advanced notice of planned specification change for the 1:25 000 Scale Colour Raster product #### What is happening? In the March 2027 release of the [1:25 000 Scale Colour Raster](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/1-25-000-scale-colour-raster) product, we'll be introducing a specification change in the depiction of A roads classified as Primary Routes; in the same release, we'll also update the service area symbol. #### Background Primary Routes are defined as an A road or sequence of A roads, forming a continuous route between two primary destinations; [further information can be found on the Gov.uk website in their 'Guidance on road classification and the primary route network' statutory guidance](https://www.gov.uk/government/publications/guidance-on-road-classification-and-the-primary-route-network/guidance-on-road-classification-and-the-primary-route-network#chapter1). In the current supply of the 1:25 000 Scale Colour Raster product, we don't show Primary Routes, and all A roads are depicted with a red fill, as indicated in the [product's legend](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/1-25-000-scale-colour-raster/1-25-000-scale-colour-raster-downloads#supporting-documents). The service area symbol for A roads is depicted with the letter S in white upon a red diamond and a cyan triangle for Motorway Service Areas. Since November 2001, we have supplied Primary Routes depicted with a green fill in our 1:50 000 Scale Colour Raster product (as can be seen in the [product's legend](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/1-50-000-scale-colour-raster/1-50-000-scale-colour-raster-downloads#supporting-documents)), and we've historically done so in our 1:250 000 Scale Colour Raster product (as can be seen in the [product's legend](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/1-250-000-scale-colour-raster/1-250-000-scale-colour-raster-downloads#supporting-documents)). This change in the specification for the 1:25 000 Scale Colour Raster product will align the three raster products, delivering improved consistency across the Maps and Imagery Portfolio. #### What is changing? The specification changes due to be delivered in the March 2027 release of 1:25 000 Scale Colour Raster product are: * All relevant sections of A roads currently shown with a red fill will change to a green fill * The service area symbol will be updated to a black fill with the letter S in white for all service areas The December 2026 release of the product will be the final release delivering the existing specification. There should be **no action for customers** as all impacted tiles will be supplied as part of the your standard update in March 2027; however, some customers with Change-Only Update (COU) supplies may receive a larger update than usual for the March 2027 release of the product. The 1:25 000 Scale Colour Raster – Map symbols legends (available from the [1:25 000 Scale Colour Raster Downloads page](https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/1-25-000-scale-colour-raster/1-25-000-scale-colour-raster-downloads#supporting-documents)) will be updated accordingly in March 2027. ### :information\_source: 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 National Geographic Database (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. ### :warning: 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](https://docs.os.uk/os-downloads/resources/product-resources/end-of-life-product-documentation/os-mastermap-water-network-layer/end-of-life-notice-os-mastermap-water-network-layer). ### :warning: 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](https://docs.os.uk/os-downloads/resources/product-resources/end-of-life-product-notices/end-of-life-notice-os-mastermap-greenspace-layer). ## 2025 Product announcements ### :books: 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:
Cover image
Addresses and NamesAddressBase
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		addresses-and-names-portfolioaddressbase-premiumaddressbase.xeaf23c9e.webp
Areas and ZonesBoundary-Line
Code-Point
Code-Point Open
Code-Point with Polygons
OS Open Built Up Areas		areas-and-zones-portfolioCode-Point-4.png
Buildings and InfrastructureOS MasterMap Topography Layer
OS MasterMap Topography Layer – Building Height Attribute
OS Open Linked Identifiers
OS Open TOID		buildings-and-infrastructure-portfolioMasterMap-Topography-And-Building-Heights-2.PNG
Land and TerrainOS 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		land-and-terrain-portfolioMasterMap-Greenspace-5.png
Maps and Imagery1:25 000 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		maps-and-imagery-portfolioimage.png
Transport NetworkOS Detailed Path Network
OS MasterMap Highways Network – Paths
OS MasterMap Highways Network – Roads
OS MasterMap Highways Network – Routing and Asset Management Information
OS Multi-modal Routing Network
OS Open Roads
OS Open USRN
OS Open Linked Identifiers		transport-network-portfoliospaces_cNpJpLP8RROUaWVQo5ea_uploads_Yg04Mhx2AuEmd9cphnsi_image.webp
WaterOS MasterMap Topography Layer
OS MasterMap Water Network Layer
OS Open Linked Identifiers
OS Open Rivers
OS Open TOID		water-portfolioOpen-Rivers-1.png
#### 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**](https://docs.os.uk/os-downloads/upcoming-products/beta-products-information#prototype-products), [**alpha**](https://docs.os.uk/os-downloads/upcoming-products/beta-products-information#alpha-products) or [**beta**](https://docs.os.uk/os-downloads/upcoming-products/beta-products-information#beta-products) builds with varying levels of availability and completeness. Below, you’ll find details of our current upcoming products:
Upcoming Products

OS BaseMap Pro (Prototype)

OS 3D Mesh (Beta)
OS Maps for Power BI Visual (Beta)
OS Enhanced Land Cover (Beta)

beta-products-information
{% tabs %} {% tab title="December 2025" %} **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. {% endtab %} {% tab title="November 2025" %} **AddressBase, AddressBase Plus and AddressBase Plus Islands products will become End of Life in 2027** The [AddressBase](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase), [AddressBase Plus](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/addressbase-plus) and [AddressBase Plus Islands](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/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](https://docs.os.uk/os-downloads/resources/product-resources/end-of-life-product-notices). {% endtab %} {% tab title="July 2025" %} **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)](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer) 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 {% endtab %} {% tab title="June 2025" %} **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](https://docs.os.uk/os-downloads/upcoming-products/beta-products-information/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. {% endtab %} {% tab title="March 2025" %} **March 2025 – OS Product Roadmap now available** The [OS Product Roadmap](https://www.ordnancesurvey.co.uk/products/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](https://docs.os.uk/os-downloads/resources/product-resources/end-of-life-product-notices). {% endtab %} {% tab title="January 2025" %} **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](https://docs.os.uk/more-than-maps/deep-dive/a-guide-to-coordinate-systems-in-great-britain), has been moved to our [More than Maps platform](https://docs.os.uk/more-than-maps) alongside other deep dives and tutorial content covering the application of OS data. {% endtab %} {% endtabs %} ## 2024 Product announcements {% tabs %} {% tab title="December 2024" %} **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](https://docs.os.uk/os-downloads/upcoming-products/beta-products-information/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)](https://docs.os.uk/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer) 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 {% endtab %} {% tab title="November 2024" %} **November 2024 – OS MasterMap Product Viewer Tool** We've added links to the [OS MasterMap Product Viewer Tool](https://experience.arcgis.com/experience/20981dabcb14402687dccb437a4a78fb/) 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. {% endtab %} {% tab title="March 2024" %} **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](https://docs.os.uk/osngd/data-structure/transport/rami/average-and-indicative-speed). 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). {% endtab %} {% endtabs %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.os.uk/os-downloads/resources/product-resources/product-announcements.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.