# Release Notes ## [OS MasterMap Highways Network – May 2026 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/may-2026.md) This release note provides information about the May 2026 release of OS MasterMap Highways Network. ## [OS MasterMap Highways Network – April 2026 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/april-2026.md) This release note provides information about the April 2026 release of OS MasterMap Highways Network. ## [OS MasterMap Highways Network – March 2026 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/march-2026.md) This release note provides information about the March 2026 release of OS MasterMap Highways Network. ## [OS MasterMap Highways Network – February 2026 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/february-2026.md) This release note provides information about the February 2026 release of OS MasterMap Highways Network. ## [OS MasterMap Highways Network – January 2026 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/january-2026.md) This release note provides information about the January 2026 release of OS MasterMap Highways Network. ## [OS MasterMap Highways Network – December 2025 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/december-2025.md) This release note provides information about the December 2025 release of OS MasterMap Highways Network. ## [OS MasterMap Highways Network – November 2025 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/november-2025.md) This release note provides information about the November 2025 release of OS MasterMap Highways Network. ## [OS MasterMap Highways Network – October 2025 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/october-2025.md) This release note provides information about the October 2025 release of OS MasterMap Highways Network. ## [OS MasterMap Highways Network – September 2025 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/september-2025.md) This release note provides information about the September 2025 release of OS MasterMap Highways Network. ## [OS MasterMap Highways Network – August 2025 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/august-2025.md) This release note provides information about the August 2025 release of OS MasterMap Highways Network. ## [OS MasterMap Highways Network – July 2025 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/july-2025.md) This release note provides information about the July 2025 release of OS MasterMap Highways Network. ## [OS MasterMap Highways Network – June 2025 release note](/os-downloads/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes/june-2025.md) This release note provides information about the June 2025 release of OS MasterMap Highways Network. --- # 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/products/transport-network-portfolio/os-mastermap-highways-network-fundamentals/release-notes.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.