Simon Willison released version 0.19 of the datasette-cluster-map plugin on 13 November 2026. This tool generates maps for any dataset containing latitude and longitude columns by relying on the new datasette-leaflet dependency. The update ensures OpenStreetMap tiles request a referrer header correctly. It also functions with Datasette 1.0a42, demonstrating the platform’s recently redesigned facets through a visualisation of PG&E power plants in California.
The change matters because it aligns this long-standing plugin with the latest Datasette architecture without altering core data handling. The dependency shift resolves technical requirements for tile requests while the facet updates improve how users interact with the resulting maps. These adjustments maintain compatibility as the software stack evolves.
- Requires datasette-leaflet for tile rendering
- Compatible with Datasette 1.0a42
- Visualises geospatial data via OpenStreetMap
