Release v2.4.0

Release Date: July 20, 2026

Combine multiple ROIs in optimization — flex-search and exhaustive-search can now target the union of several same-type regions (cortical by name including cross-hemisphere, subcortical by label, or multiple spheres) through a searchable region picker with region chips.
TI safety metrics (Cassarà et al. 2025) — peak carrier field and SAR-driver maps are now written as subject- and MNI-space NIfTI volumes alongside TI_max.
Surface-based group statistics — run group comparisons and correlations directly on the fsaverage cortical surface with cluster-based permutation testing and inflated-cortex rendering; TI fields now auto-project to fsaverage after each simulation.
CT and NIfTI ingestion — preprocessing can now import head CT scans and pre-converted NIfTI files (T1w/T2w/CT/DWI), not only DICOMs.
3D Visualizer subcortical field export — export subcortical structures colored by a simulation field (PLY) using a searchable label picker.
Simulator skip/replace policy — choose to skip or overwrite existing simulation outputs instead of aborting with an error.
Montage visualizer clarity — connection arcs now show which channels interfere (TI partners), with a channel color legend.
Faster simulations — mesh-to-NIfTI conversion is parallelized, cutting end-to-end simulation time by roughly 30%.

DICOM import crash — fixed a crash on projects seeded with macOS junk (AppleDouble) files.
QSIPrep preprocessing failures — the root BIDS dataset description is now always created, and a missing T1w is reported up front instead of failing deep in the workflow.
3D exporter file loss — fixed the exporter deleting cortical region files after export.
FreeSurfer data volume versioning — the volume is now versioned by image tag so image updates correctly re-seed it.

Desktop App (v2.4.0): macOS Intel · macOS Apple Silicon · Windows · Linux AppImage · Linux deb

Other:

For installation instructions, see the Installation Guide.

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