Release Notes

Release notes listed here provide information about the releases of the OS MasterMap Topography Layer – Building Height Attribute product over the last year

OS MasterMap Topography Layer – Building Height Attribute – April 2026 release note

This release note provides information about the April 2026 release of OS MasterMap Topography Layer – Building Height Attribute product.

OS MasterMap Topography Layer – Building Height Attribute – October 2025 release note

This release note provides information about the October 2025 release of OS MasterMap Topography Layer – Building Height Attribute product.