2026-09-01 –, Ran1
TerriaJS is an open-source TS/JS framework for building rich, 2D and 3D web-based geospatial data platforms such as Digital Earth Australia, the WA Digital Twin, and numerous government and research deployments worldwide. This talk presents the current state of the project.
After a year of deliberate consolidation in 2025 — focused on dependency modernisation, security hardening, React 18 and MobX upgrades, and build system improvements — 2026 has been declared the "year of the map," with a renewed focus on new features, expanded data format support, and growing the open-source ecosystem. This talk covers recent technical milestones including the completed React 18 migration, performance improvements for large ArcGIS FeatureServer datasets, PMTiles rendering enhancements, the new MapboxSearchProvider, and expanded internationalisation support.
Beyond the code, we reflect on the broader lessons learned in sustaining an open-source geospatial project at the intersection of government adoption, commercial development, and community stewardship.
TerriaJS
I make my conference contribution available under the CC BY 4.0 license. The conference contribution comprises the abstract, the text contribution for the conference proceedings, the presentation materials as well as the video recording and live transmission of the presentation:
Ana Belgun is a co-founder of Terria, where she is committed to making spatial data and digital twin technologies more accessible and impactful for both technical and non-technical users. With a background in geospatial solutions, Ana is dedicated to driving open source initiatives that empower organisations in government, business, and research sectors to harness the full potential of spatial data.