EM 1.5 is out
EM 1.5 ships with Landscape mode, CronoFilter, the new TSU vocabulary, an LTS commitment, and a refreshed EM Tools manual — the result of two years of work and the launchpad for the StratiGraph 1.6 cycle.
After two years of accumulated work across the language, the tools, and the manual, EM 1.5 ships today as the new Long-Term Support line of the Extended Matrix framework.
Landscape mode is now part of 1.5: a single Blender scene can hold multiple archaeological graphs side by side, which is the configuration you actually need when a project spans a city, a survey area, or several excavation trenches that share a chronology.
CronoFilter, the chronological-horizons manager driving that multi-graph view, ships with it. The scene can be filtered and coloured by horizon, stepping through time across sites simultaneously rather than graph by graph.
Transformation Stratigraphic Units (TSU) enter the EM vocabulary in 1.5. They document states and transformations of a built object — decay, restoration, thematic surveys — without forcing those readings into the standard stratigraphic categories. Full reference is in the language docs, with the operational workflow on the EM Tools Conservation Workflow page.
The EM Tools manual has been reorganised around a five-step workflow diagram and now carries an intermediate tutorial track: manual EM construction, EM-to-2D/3D linking, sources & metadata discipline, and a complete end-to-end case study.
This release is also the first to land under a formal LTS commitment — multi-year support, semantic-version governance, and a public change-control process backed by the StratiGraph European project.
Grab the binaries from the EM 1.5 release page, read the 1.5 manual on RTD, and follow the next-cycle work on the development tracker.