# Release Notes ## Release 0.5.0 (2026-06-05) ### Plate Simulation * Create UI and Driver for the classification of EM anomalies * Export best match models as Maxwell plates (w/ GEOPY-2661) * Finalize Anglo Accelerated Development with synthetic example * Add documentation for plate sweep and match * Add summary option for plate sweep * Change reference of Plate from center-center to top-center * Plate Match: Attach figure with comparative plot of scaled obs versus simulated data * Make simpeg group names in plate-simulation more clear in the ui.jsons ### Mag/Grav * MVI: Add small value to reference amplitude if reference are used * Implement MVI with PDE inversion * Use cyclic colormap by default for declination angle model * Change data groups saved for MVI as requested by users * Revert legacy behaviour with reference model ON by default ### FEM/TEM * Implement arbitrary receiver orientations (u-v-w) for airborne EM surveys * Relabel ui.json for TEM using Vertical, inLine, cross-line * Airborne FEM coaxial do not rotate transmitter, and ppm normalization needs to be adjusted * Allow rotated receivers for ground EM survey * Remove dependency on Tx frequency for airborne FEM survey ### Natural Sources * Incorporate MobileMT inversion with SimPEG (apparent conductivity only) DC/IP ### DC/IP * Parallelize batch 2D inversion * Improve topography augmentation for DC and MT * Accept 2D inversion mesh (DrapeModel) in sensitivity_cutoff application * Add tooltips to missing IP inversion inputs * DC2D with single line crashes on run with n_workers set * Investigate edge cells recovered with DC2D inversions ### Joint Inversion * Joint surveys using mvi crashes with dimension mismatch * PGI: Add checks for reference model present on inversion groups. Return clean GeoAppsError if not * Research auto-scaling strategy for cross-gradient regularization terms * Membership flip between iterations in PGI * Add PGI documentation ### General Utilities * Add dip_direction to list of supported variables by plate_sweep * Micro-management of auto-scaling of misfits with tiles, channels and within joint inversions * Clip limits of topography extent based on mesh extent * Add datetime stamp to simpeg.log and simpeg.out file names * Add validator for negative on NDV values in uncertainties * Transfer visual parameters Core volume settings from the input mesh to the inversion mesh (if present) * Add optional out_group to Depth of Investigation app ### Bugs and Maintenance * Update GravityUIJson with new data forms * Conductivity/Resistivity switcher doesn't make sense for joint mvi/mag * Synthetic topography for runtests is overly sampled * Fix capitalization in labels and tooltips of ui.json files * Update minimum requirement to python >=3.12, <3.14 and numpy 2.* * Implement direct run_commands to specific modules for forwards and inversions * DCIP 2D crash on line ID selection * PGI failure on petrophysical model with air cells * Inversion stalls on tiling for large problems during redistribution of clusters * Refactor extent property calculation for all grid objects * Consolidate code for plate model definition between different repos * Update dictionary to choose driver from run_command * Triangulation crash on input surface * Regularization parameters of sub-drivers always over-written by joint parameters * Inversion crash on tile mesh creation transferring data * Refresh screenshots of UIJsons in docs ## Release 0.4.0 (2026-01-06) * Support 3D vector property group for orientation of rotated gradients * Add rotated_gradient to 2D inversions * Refactor components of inversion options * single entry point to run any application * Joint inversion: PGI * Migrate param-sweeps to geoapps-utils * Migrate plate-simulation to simpeg-drivers * Hook up 2D rotated gradients to batch 2D inversions * Investigate random failure of cross-gradient test * Amplitude model stuck on upper bound for MVI * Change default sensitivity threshold for DC inversions * Fix plate simulation label and tooltip * Speed up saving directive by keeping the file open during series * Change units displayed on selector of data type for V/Am^2 * Investigate slow startup time for TEM inversion * Make pydantic validator issues returns clean GeoAppsError option * Add case study with Forestania datasets * Improve rotated gradient on octree change with average cell dim * Add files via upload * Add docs on rotated gradient options * Force use of MKL for Blas implementation * Bad flipping of large loop orientation * Refactor of the Factory classes * Migrate octree-creation-app to grid-app * Investigate double-print of Geoapps-Error * Can't handle topography grid with nan * Parallelize 1D simulations * Forward simulation of potential fields always forms the full J * Re-order parameters to mimic the order in metadata * Add check for negative cond/res model values * Lost control on reference angles for MVI * Add core depth to the max-min elevation of the survey * Detect issues with waveform and throw a custom GeoappsError if found * Add a copy group+object base in input file as it exists in the UIJson group * Failure of directives when using Futures for simulation * Create custom sweep UIjson for plate-simulation * Investigate speckly looking MVI models with rotated gradients * Make start/stop group optional, and use the plate-sim parameter instead if disabled * Missing grouping of EM data in save directive for joint inversions * Parallelize the Sweeps * Explore 2D gridding techniques for EM line data * Pydantic error on auto-mesh creation with Grid2D topography object * Crash on Zarr file shape for tiled inversions with disk storage * Crash on no-upper bound for MVI within a joint process * Improve parallel creation of 1D simulations * Investigate erratic corner cells when using rotated gradients * Add custom error for topography grid selected without data * Random failure of sensitivity cutoff app tests * Workers crash on creating misfits for large problems * Remove save directive for petrophysical model * Adjust target misfit down to account for number of NDV in data * PGI fails with single simulation selected * MT predicted channels missing [] indices * Break edge case for 1D inversion with negative elevation (release 4.7) * Save sensitivities option ignored (release 4.7) * Wrong normalization for MT * Speed up active from topography algorithm * Bring in doc of plate simulation * Remove out_group form ui.json * Cannot load results from Batch 2D inversion runs * DEVOPS-922: adjust or fix text in ui.json * Check for MVI Simpeg groups and raise error * Joint surveys fails validation if no starting/reference models chosen ## Release 0.3.0 (2025-06-20) * Create spatial tiling estimator * Add a depth of investigation application * Add auto-meshing option for all inversions with default parameters * Fix simpeg-drivers pyproject still pointing to octree-creation-app/* * Auto-meshing: Round cell size to nearest 5 multiplier * Allow option for percentile cutoff in sensitivity based depth of investigation * Auto-meshing: Only use depth_code (no vertical pads) for potential fields and DC-IP inversions * Add UIJson group to hold octree creation parameters and update options * Octree mesh upside down * Refactor Params class with BaseData * Convert all of potential fields to BaseData params class * Faulty air cells in 2D inversion active * Reduce tests runtime * Use MetaSimulations instead of custom misfit mapping towards distributed process * Convert all DC/IP 3D/2D params to BaseData * Convert all EM params to BaseData * Convert both joint params to BaseData * Export uml from simpeg-drivers and design class structure for inversion parameters. * Selecting an active model instead of topography with surface survey option crashes * Update discretize to >=0.11.* * Cleanup constant files and data classes * Add version validation and write_default method to update version in … * Update SimPEG 0.21.2 to 0.23 * Crash running 2D IP * Add custom Error for problem too large * Add UIJson class for gravity forward/inversion * Add option for MUMPS solver * Duplicated survey object when monitoring_directory is used * Resolve deprecation warnings with latest simpeg 0.23 and discretize 0.11 * Create documentation for depth of investigation app * Fixup dependencies * Draft uml file for the UIJson/Params design * Update inversion docs to describe the auto-mesh option * Phi-d at Iter 0 shows as nan in the *.out file * Handle extra fields and deprecations in UIJson version validation * Clean up pydantic warnings * Implement structural orientation (rotated gradient) option to the inversion UI * Migrate em_inversion (EM1D) script to simpeg-drivers * Should update version when writing ui.json from simpeg-drivers options classes * Migrate FEM-1D from simpeg-drivers * Make lower bound for MVI visible=False * Add strike/dip option to the choice list of rotated_gradients. * Deprecate gradient_type * Fix warning about differing number of parameters between ui_json and data. * Relock on latest git dev revisions * Environment for coming pre-release * Fix UI json version tests (part of GEOPY-2049) * Rename params modules to options * Group models for L2 and LP * Add version to print screen * Allow IntegerData for active cell value model type * Use published dependencies, no git branches * Correctly declare dask for pip and dask-core for conda * Fixup dask dependency: do not lock on pypi * Use dask.distributed with workers as default behaviour * IP inversion with resistivity option does not convert the model to conductivity * Name of conductivity_model does not match the selection for resistivity * Change default auto-scaling to false * Bring back adjusted ui.json from Analyst to their respective repo * Bad referencing to transmitter id name * MVI name change breaks the forward * Fem1d title * Outdated inversion_type for 3D FDEM * Non-zero evaluation of the rotated gradient of a constant model * Sub-mesh reused on split data * Ensure backward compatibility of saved ui.json from Analyst 4.5 to 4.6 ## Release 0.2.0 (2025-02-07) * Octree mesh cell definition not update if rec array * Make the canny add_data optional on get_edges method * Crash on joint survey with apparent resistivity * Update simpeg fork to 0.21.2 * Streamline geoapps-utils * Generate tutorial for Natural source EM * Add checks on waveform before sending to SimPEG * Training material for ATEM * Always check/closed EM loops and return warning * Fix handling of UBC ordered Octree cells * Add docs for validation * Allow input active cells instead of topography * Fix formatting of warning for LargeLoop. Use logging instead warning * Inversion: Allow for model vector to define norms * Re-order the inversion inputs following users comments * Add option to export sensitivities for all inversions * Enable cell/face weights in params * Fill in default ui.json tooltips for inversion parameters * Review stitching of predicted data on tipper inversion * Review log and out for cross-gradient inversion. * Regression: Crash with no-reference data * Group vector model orientation parameters as "Dip Direction & Dip" * Add option for cond/resis for all EM/DC methods * Flip upper and lower bound value for resistivity style inversions * Implement rescaling of misfit functions for joint inversion * Tipper inversion crashes on background_model if not constant * DC3D inversion reports disconnected cells * Ram/Disk option not working in simpeg through Analyst * Save sensitivities fails for MVI inversion in Analyst * Nan data values not handled by the inversion * Simpeg-drivers is adding a transmitter id to the transmitter always * Make the transmitter id name agnostic ## Release 0.1.0 (2024-06-17) * Copy model to avoid applying double log * prepare distribution * Remove factor of half on cpu count for n_cpu=disabled * Fix reduced set of linter errors on simpeg-drivers * Regenerate env lock files (for SimPEG rc.1) * Enforce counter-clockwise ordering of EM large loops * Move params tests from geoapps to simpeg-drivers * Deal with negative octree cell dimensions from legacy inversions * Improve tiling strategy for large loop EM * Improve scaling of cross-gradient regularization * Build distribution files for geology and geophysics modules for Analyst * Use new dev script to create lock files * Fix tile ID on save directive * New RC distribution for Analyst 4.4 * Import of simpeg-drivers too slow * Merge Release/0.1.0 to main * Use octree-creation-app v0.1.1 Copyright (c) 2023-2026 Mira Geoscience Ltd.