KeyGML is now available as freeware

Dear Customer,

I am writing to let you know that development, maintenance and technical support for KeyGML have now ended.

Ordnance Survey is developing OS BaseMap Pro as the future successor to OS MasterMap Topography Layer. BaseMap Pro is a new product built on the OS National Geographic Database (OS NGD), rather than simply a new version of the existing MasterMap format. After considering the development work that would be required to support these new formats, I have decided not to develop KeyGML further.

The final versions of KeyGML for AutoCAD 2025 and AutoCAD 2026 are now available free of charge as freeware.

The freeware versions:

• do not require licence activation or licence checks;
• have no expiry date or other time limits; and
• may continue to be used with compatible OS MasterMap data for as long as users retain a suitable supported AutoCAD installation.

KeyGML will not be ported to AutoCAD 2027 or later versions and will not be developed to support OS BaseMap Pro, OS NGD or other future Ordnance Survey formats.

Please note that the freeware versions are provided as-is. No further development, maintenance or technical support will be provided.

My intention is to give existing KeyGML customers a straightforward way to continue using the software and their existing OS MasterMap workflows for as long as they need to, without any future licensing restrictions.

Thank you for your support of KeyGML over the years.