26.03

Dependencies

• AMReX: 26.03
• pyAMReX: 26.03
• PICSAR-QED: 25.06
• pybind11: 3.0.2
• picmistandard: 0.34.0
• openPMD-api: 0.17.0
• Python: 3.10 - 3.14

What's Changed

• Fix memory warning in test_2d_python_wrappers_picmi by @EZoni in #6489
• Dependencies: weekly update by @github-actions[bot] in #6543
• Add documentation example for ion beam extraction from plasma source by @oshapoval in #6496
• Hybrid PIC: change definition of number of substeps by @RemiLehe in #6556
• Fix docstring error in picmi.py by @EZoni in #6559
• Replace missing Summit postprocessing documentation by @RemiLehe in #6560
• Dependencies: weekly update by @github-actions[bot] in #6561
• Pip Install: Skip diags/ by @ax3l in #6554
• Make checksum for test_3d_linear_compton_bunch_laser less brittle by @RemiLehe in #6565
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6568
• Fail RTD doc on warning by @RemiLehe in #6569
• Improve performance of hybrid-PIC algorithm by @roelof-groenewald in #6567
• Docs: inputs section cleanup - simulation time by @EZoni in #6557
• Save lost particle time by @dpgrote in #6533
• Fill guard cells for EB update MFs by @roelof-groenewald in #6574
• CI: Azure Cache Revamp by @ax3l in #6577
• AMReX: development by @ax3l in #6578
• exploit symmetry to reduce deposit of diagonal mass matrices by @JustinRayAngus in #6555
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6587
• Control Magnetostatic Solver Precision by @n01r in #6582
• Hybrid-PIC optimization: only call FillBoundaryE for collocated grids by @roelof-groenewald in #6575
• Add AGENTS.md file by @RemiLehe in #6482
• Fix some typos by @eebasso in #6590
• Use NoGpuSync for MLMG in computePhi by @AlexanderSinn in #6491
• Polymorphic PC by @ax3l in #6374
• Dependencies: weekly update by @github-actions[bot] in #6585
• Update profile for LUMI25.03 by @huixingjian in #6597
• simplify DefaultInitializeRuntimeAttribute() parameters by @JustinRayAngus in #6583
• Dependencies: weekly update, pybind11 v3.0.2 by @github-actions[bot] in #6600
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6601
• Fix bug with external field loading from file by @roelof-groenewald in #6602
• Doc: Perlmutter Python Batch Script by @ax3l in #6603
• Fixing origin issue with vector laplacian evaluation in HybridPICSolveE by @clarkse-he in #6598
• Make FinishMassMatrices public, in ImplicitSolver by @dpgrote in #6604
• Doc: Perlmutter GCC Downgrade by @ax3l in #6609
• Add picmi flag to set do_device_synchronize by @roelof-groenewald in #6614
• Typos in parameter.rst by @eebasso in #6612
• Change mass of pre-defined elements in species_type: subtract mass of the electrons by @RemiLehe in #6518
• Hybrid-PIC: Add check if external currents are used by @roelof-groenewald in #6610
• reduce expanded fusion collision type checking. by @JustinRayAngus in #6623
• Add CLAUDE.md as symlink to AGENTS.md by @RemiLehe in #6620
• Create agent skill to add new paper highlights in the documentation by @RemiLehe in #6626
• Adjust indent in parameters.rst by @eebasso in #6632
• Take into account relativistic velocity in particle reflection test by @RemiLehe in #6619
• Implement collisions in the middle of the momentum push for electrostatic PIC by @oshapoval in #6572
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6633
• Replace WARPX_PROFILE with ABLASTR_PROFILE by @RemiLehe in #6634
• Enable mid-v push with embedded boundaries by @oshapoval in #6617
• DevUtils: automate checksum reset from Azure via PR number by @RemiLehe in #6621
• Doc: new paper in highlights – Wang et al. 2026 by @RemiLehe in #6627
• Fix luminosity diagnostics with mesh refinement by @aeriforme in #6605
• FieldGather: use Bz-specific z offset by @WeiqunZhang in #6664
• Release: WarpX 26.03 by @github-actions[bot] in #6630

New Contributors

• @huixingjian made their first contribution in #6597
• @clarkse-he made their first contribution in #6598

Full Changelog: 26.02...26.03

26.02

Dependencies

• AMReX: 26.02
• pyAMReX: 26.02
• PICSAR-QED: 25.06
• pybind11: 3.0.1
• picmistandard: 0.34.0
• openPMD-api: 0.17.0
• Python: 3.10 - 3.14

What's Changed

• Doc: X-Ref Debugging by @ax3l in #6470
• Fix Zenodo JSON Schema by @ax3l in #6473
• Dependencies: weekly update by @github-actions[bot] in #6466
• Fix the periodic 1D Poisson solver by @dpgrote in #6418
• CI: Zenodo Validator by @ax3l in #6474
• Containers: More Shared Libs by @ax3l in #6480
• add reduced compton wavelength to constants by @pkicsiny in #6476
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6484
• Doc: New Paper in NJP on LPA Opt by @ax3l in #6488
• Fix Perlmutter Container: CuPy Headers by @ax3l in #6485
• Small bugfix in particle container wrapper by @roelof-groenewald in #6481
• refactor direct deposit for Mass Matrices. by @JustinRayAngus in #6381
• fix bug in MatrixPC for 1D. by @JustinRayAngus in #6498
• Dependencies: weekly update by @github-actions[bot] in #6483
• Fix Cursor issue when running Python through CTest by @RemiLehe in #6490
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6508
• Docs: inputs section cleanup - parser and constants by @EZoni in #6510
• Fix conditionless ComputeSpaceChargeField by @aeriforme in #6455
• Curl2 matrix BC masks by @JustinRayAngus in #6383
• Add density floor and time filtering to effective potential solver by @roelof-groenewald in #6143
• Dependencies: weekly update by @github-actions[bot] in #6507
• Dependencies: weekly update by @github-actions[bot] in #6522
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6525
• Expose reduced Planck constant by @EZoni in #6517
• Add new paper using WarpX for magnetic reconnection by @RemiLehe in #6521
• Docs: inputs section cleanup - #6510 follow-up by @EZoni in #6511
• Improve documentation for callback function (third step): data access by @RemiLehe in #6368
• bug fix for MM deposition in 1D. by @JustinRayAngus in #6526
• Mass matrices pc width part 1 by @JustinRayAngus in #6520
• Docs: Remove Summit & Lassen (ppc64le / CORAL aquisition) by @lucafedeli88 in #6528
• openPMD-api: 0.17.0 by @ax3l in #6461
• Fix warning message for mass and injection file by @Noerr in #6532
• VirtualPhotonCreation.H: remove unnecessary #include "WarpX.H" by @lucafedeli88 in #6537
• VirtualPhotonCreation.H : fix warning concerning not explicitly initialized variables by @lucafedeli88 in #6538
• TemperatureDeposition.H and VarianceAccumulationBuffer.cpp : fix inclusion of WarpX.H by @lucafedeli88 in #6540
• Release: WarpX 26.02 by @github-actions[bot] in #6544

New Contributors

• @pkicsiny made their first contribution in #6476

Full Changelog: 26.01...26.02

26.01

Dependencies

• AMReX: 26.01
• pyAMReX: 26.01
• PICSAR-QED: 25.06
• pybind11: 3.0.1
• picmistandard: 0.34.0
• openPMD-api: 0.16.1
• Python: 3.10 - 3.14

What's Changed

• Docs: inputs section cleanup - QED by @aeriforme in #6385
• PETSC CI: Simplify by @ax3l in #6437
• allow dt update based on particle CFL for theta implicit solver. by @JustinRayAngus in #6428
• For PEC_insulator, fix the source on the boundary by @dpgrote in #6436
• Dependencies: weekly update by @github-actions[bot] in #6439
• Fix formatting in parameters.rst to avoid warnings by @dpgrote in #6444
• Free disk space in nvhpc CI by @WeiqunZhang in #6445
• CMake: No Warn for No-MPI Tests by @ax3l in #6450
• ExternalField.H: use static_cast to convert double/float to int by @lucafedeli88 in #6446
• Cropping of particles at boundaries for deposition for charge conservation by @dpgrote in #5649
• Doc: WarpX no-MPI Perlmutter Container by @ax3l in #6422
• Add cupy support for picmi CIs with callback functions by @oshapoval in #6354
• Custom weights for initial DistributionMapping by @WeiqunZhang in #6452
• Dependencies: weekly update by @github-actions[bot] in #6457
• Load Density: Distributed Approach by @WeiqunZhang in #6221
• Add option to initialize a Gaussian beam using total number of particles instead of total charge by @aeriforme in #6451
• Fix undefined variables in PICMI test scripts by @oshapoval in #6456
• External Particle Fields: enable reading of multiple fields from file by @SeverinDiederichs in #6269
• collisions should be after call to HandleParticlesAtBoundaries() by @JustinRayAngus in #6458
• PETSc: Better Support in Build & CI by @ax3l in #6441
• Poisson Solver: Synchronize nodal data before solve by @WeiqunZhang in #6438
• Add documentation for implicit attributes by @dpgrote in #6443
• Dependencies: weekly update by @github-actions[bot] in #6463
• check for out of bounds particles with cropping in suborbits. by @JustinRayAngus in #6467
• add missing PetscFunctionBeginUser by @JustinRayAngus in #6462
• Doc: AMD GPU Debugging by @ax3l in #6469
• Documentation for Adastra (CINES, France): change installation directory to WORKDIR & clean scripts by @lucafedeli88 in #6423
• Release: WarpX 26.01 by @github-actions[bot] in #6468

Full Changelog: 25.12...26.01

25.12

Dependencies

• AMReX: 25.12
• pyAMReX: 25.12
• PICSAR-QED: 25.06
• pybind11: 3.0.1
• picmistandard: 0.34.0
• openPMD-api: 0.16.1
• Python: 3.10 - 3.14

What's Changed

• Remove checksum.rst file by @RemiLehe in #6332
• In langmuir/README.rst use "none" for the language instead of "ini" by @dpgrote in #6333
• [Hackathon] Update "Theory" section in documentation by @roelof-groenewald in #5258
• Consistently use language:none for literal include in the documentation by @RemiLehe in #6336
• Docs: Complete hybrid solver parameter docs by @n01r in #6337
• Docs: Fix reStructuredText syntax for figures by @EZoni in #5386
• Update high-level page of the theory documentation by @RemiLehe in #6341
• Update title of the hybrid PIC section to mention Ohm's law by @RemiLehe in #6342
• Fix HybridPICSolver docs by @n01r in #6346
• Python: Implement mesh on MultiFab by @ax3l in #6344
• ablastr constants : add variable templates to allow for flexibility in using single/double precision by @lucafedeli88 in #5828
• Python: WarpXParticleContainer.add_particles by @ax3l in #6350
• Docs: Fix :alt: figure text again by @EZoni in #6348
• Remove usage of the fields wrapper classes by @dpgrote in #6339
• Remove mentions of ARTEMIS in the examples by @RemiLehe in #6326
• More general description of PIC loop, in theory section by @RemiLehe in #6345
• Add theory section for Poisson solvers by @roelof-groenewald in #6340
• Docs: Rearrange sidebar by @aeriforme in #6338
• Limit verbosity of particle sorting by @titoiride in #6353
• Add succinct explanation of hybrid-PIC model by @roelof-groenewald in #6358
• Consolidating boosted frame & BTD subsections by @oshapoval in #6347
• Document how to extend simulations via Python (first step): add overview section by @RemiLehe in #6360
• Clean-up for Example/Uniform plasma subsection by @oshapoval in #6349
• Document how to extent simulations with Python (second step): explain how to run by @RemiLehe in #6364
• Add an alias warpx.step for warpx.evolve by @dpgrote in #6362
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6335
• Minor tweaks to the wording of the theory section by @RemiLehe in #6363
• Python: Remove PC Wrapper in Usage by @ax3l in #6357
• WarpX Citation by @ax3l in #6102
• WarpX Remake: Keep MultiFab Pointers for EBs by @ax3l in #6315
• Docs: Resolve comment left out of #6102 by @EZoni in #6366
• Update PICMI amrex_gmres bucket name by @roelof-groenewald in #6370
• Add finite-difference operators for gradient and Laplacian by @roelof-groenewald in #6371
• Dependencies: weekly update by @github-actions[bot] in #6375
• BTD Resize ADIOS for int by @ax3l in #6377
• Rework the PECInsulator boundary conditions by @dpgrote in #6253
• Make warpx.evolve obsolete by @dpgrote in #6380
• Remove Python multifab interface by @RemiLehe in #6313
• Docs: inputs section cleanup by @EZoni in #6384
• Add a new paper using WarpX in the highlights by @RemiLehe in #6387
• Virtual photons by @aeriforme in #5595
• Docs: Add STL Union Workflow by @n01r in #6372
• Dependencies: weekly update by @github-actions[bot] in #6401
• Fix: NERSC PM Interactive by @ax3l in #6414
• Remove project number left over in Perlmutter profile by @EZoni in #6416
• Rebuild current and gather buffer masks during regrid by @atmyers in #6412
• Dependencies: weekly update by @github-actions[bot] in #6417
• Fix path to petsc directory in tuolumne install scripts by @eebasso in #6410
• Forward SoA Names to Temporary Tiles by @ax3l in #6413
• Update convergence criterion for MLMG by @RemiLehe in #6408
• WarpXSolverVec: Remove duplicates by @WeiqunZhang in #6415
• Checkpoint/Plotfile: Robust Bounds Calc by @ax3l in #6394
• Update .gitignore to exclude WARP.md by @n01r in #6379
• Perlmutter: GPU Docker Container by @ax3l in #6389
• Array PEC Warning in nvcc by @ax3l in #6393
• Adastra.rst: disable openMP support for QED lookup table generation by @grobertdautun in #6316
• Add more dependencies to root JSON file by @EZoni in #6189
• Fix PEC_insulators by @dpgrote in #6424
• Dependencies: weekly update by @github-actions[bot] in #6429
• PEC_Insulator cleanup by @dpgrote in #6426
• Docs: inputs section cleanup - intro by @EZoni in #6386
• Add test for MR with 2 levels by @RemiLehe in #3979
• For implicit, set ng_fieldgather = ng_alloc_EB by @dpgrote in #6435
• Release: WarpX 25.12 by @github-actions[bot] in #6432

Full Changelog: 25.11...25.12

25.11

Dependencies

• AMReX: 25.11
• pyAMReX: 25.11
• PICSAR-QED: 25.06
• pybind11: 3.0.1
• picmistandard: 0.34.0
• openPMD-api: 0.16.1
• Python: 3.10 - 3.14

What's Changed

• Print maximum relative error when checksums fail by @EZoni in #6252
• Dependencies: weekly update by @github-actions[bot] in #6248
• Fix potential recursive calls of WarpX constructor. by @WeiqunZhang in #6223
• Remove obsolete documentation about checksums by @EZoni in #6258
• Add new paper using WarpX by @RemiLehe in #6256
• bug fix. rtol ==> atol. by @JustinRayAngus in #6259
• FieldGather.H : fix for uninitialized arrays by @grobertdautun in #6254
• Make sure we geometrically grow the capacity of the particle buffers by @atmyers in #6260
• SpectralFieldData: remove timer-based costs tracker from constructor by @lucafedeli88 in #6225
• Dependencies: weekly update by @github-actions[bot] in #6261
• Doc: Flux (Tuo@LLNL) by @ax3l in #6140
• Update aurora.rst fixing a mistakenly pasted path from Perlmutter by @Noerr in #6241
• Docs: update LXPLUS (CERN) documentation by @SeverinDiederichs in #6264
• Tuo (LLNL): HDF5 Module Gone by @ax3l in #6255
• Skip SortForDeposition if do_not_deposit by @roelof-groenewald in #6267
• Docs: Simplify LXPLUS (CERN) setup by @SeverinDiederichs in #6268
• Energy-preserving explicit PIC-MCC algorithm: electrostatic by @EZoni in #5955
• Move InitBorrowing and ShrinkBorrowing from WarpX class to anonymous namespace in WarpXFaceExtensions.cpp by @lucafedeli88 in #6272
• Deprecate photon species list by @lucafedeli88 in #6265
• DSMC: implement generic two-product reaction by @oshapoval in #6250
• Tuolumne (LLNL): CPU-Only, HDF5, PETSC, Signal Handling by @ax3l in #6270
• Fix Leonardo CINECA docs link by @elehcim in #6277
• VarianceAccumulationBuffer.cpp: remove unnecessary include by @lucafedeli88 in #6280
• Dependencies: weekly update by @github-actions[bot] in #6278
• Deprecation of photon species list: update documentation by @lucafedeli88 in #6281
• Fix oneAPI CI errors by @RemiLehe in #6300
• Rename skip_current variable for more clarity by @EZoni in #6303
• WarpXParticleContainer_fwd.H: remove #include<AMReX_GpuAllocators.H> by @lucafedeli88 in #6299
• WarpXParticleContainer_fwd.H: remove unused struct TmpIdx by @lucafedeli88 in #6297
• WarpXParticleContainer class: remove unused PairIndex by @lucafedeli88 in #6296
• PML: move some static functions MakeBoxArray, MakeBoxArray_single, and MakeBoxArray_multiple to anonymous namespace in PML.cpp by @lucafedeli88 in #6301
• fix white space issue for add_warpx_test by @SeverinDiederichs in #6304
• WarpXFaceExtensions: move some functions used only in the cpp file to anonymous namespace by @lucafedeli88 in #6309
• Fix single precision issue in DSMC ionization by @roelof-groenewald in #6310
• Dependencies: weekly update by @github-actions[bot] in #6307
• Generalize DSMC two-product reactions for photons by @oshapoval in #6290
• Replace WarpXUtilIO::WriteBinaryDataOnFile with a one-liner by @lucafedeli88 in #6289
• WarpXParticleContainer : move DiagIdx from forward header to header by @lucafedeli88 in #6298
• Python Control of OMP Threads by @ax3l in #6288
• Add verbosity level for Checkpoint diagnostic output by @Noerr in #6312
• Make PIdx struct more readable by @lucafedeli88 in #6294
• MusclHancockUtils.H : fix uninitialized variables by @lucafedeli88 in #6295
• Spacecraft Charging Example: Get Field Dir String by @ax3l in #6322
• Remove particles.photon_species inputs left over by @EZoni in #6320
• Add ablastr::math::set_random_seed by @ax3l in #6319
• Remove latex source files for the documentation by @RemiLehe in #6323
• Update runtime names to access particles from Python by @RemiLehe in #6318
• Fix default tolerance in restart test by @RemiLehe in #6325
• Implementing sparse matrix representation of Jacobian and using PETSc preconditioners by @debog in #6184
• Fix restart with ionization and add automated test by @RemiLehe in #6291
• Add ability to load particles from openPMD, through the PICMI interface by @RemiLehe in #6305
• Dependencies: weekly update by @github-actions[bot] in #6330
• Streamline contact page by @RemiLehe in #6328
• Clean documentation: Move all bibliography to refs.bib by @RemiLehe in #6327

New Contributors

• @elehcim made their first contribution in #6277

Full Changelog: 25.10...25.11

25.10

Dependencies

• AMReX: 25.10
• pyAMReX: 25.10
• PICSAR-QED: 25.06
• pybind11: 3.0.1
• picmistandard: 0.33.0
• openPMD-api: 0.16.1
• Python: 3.9 - 3.13

What's Changed

• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6146
• More readable code in PushPX, PushXPSingleStep by @EZoni in #6113
• FieldGather: Enable Lower D by @ax3l in #6127
• Docs: Fix HTTP Error 403 by @EZoni in #6151
• Change y to z in WarpX 2D examples by @RemiLehe in #6152
• remove unnecessary input param from ImplicitPushXP() by @JustinRayAngus in #6148
• UB sanitizer test : print stack trace for easier debugging by @lucafedeli88 in #6153
• Python: MultiFabRegister::list by @ax3l in #6164
• Pre-Build AMReX: RCylindrical, RSphere by @ax3l in #6163
• Cleanup/streamline ImplicitPushXPSubOrbits() by @JustinRayAngus in #6160
• move detailed print for implicit solvers to base class. by @JustinRayAngus in #6168
• ImplicitPushPX: fix maybe-uninitialized warning by @lucafedeli88 in #6172
• Implicit gamma inverse function by @JustinRayAngus in #6170
• Implementation of Bremsstrahlung collisions by @dpgrote in #5537
• Dependencies: weekly update by @github-actions[bot] in #6171
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6173
• Diagnostics: pass particle container by const ref to (slightly) reduce reliance on WarpX::GetInstance by @lucafedeli88 in #5712
• Fix loading photons from openPMD file by @aeriforme in #6155
• PSATD: OMP Parallelize Data Packing and Unpacking by @WeiqunZhang in #6167
• Suppress GCC -Warray-bounds warnings by @EZoni in #6088
• Fix minor bugs in script to update dependencies by @EZoni in #6150
• MF Register Direction: Descriptive Members by @ax3l in #6162
• Add example of basic python input file by @dpgrote in #6149
• CI: debug autoupdate workflows by @EZoni in #6122
• MANIFEST.in: dependencies.json by @ax3l in #6179
• Python: Remove Deprecated multifab Overload by @ax3l in #6180
• Fix ablastr::utils::write_used_inputs_file by @WeiqunZhang in #6165
• add option to modify particle update on initial Newton step by @JustinRayAngus in #6169
• AMReX/pyAMReX/PICSAR: Weekly Update by @ax3l in #6182
• New SubcyclingHalf enum for subcycling algorithm by @EZoni in #6174
• Allow phi output with non-ES solvers by @roelof-groenewald in #5872
• use span to allocate mesh data by default by @guj in #6123
• Doc: Frontier Plotfile Options by @ax3l in #5962
• MacroscopicEvolveE: pass macroscopic_solver_algo to MacroscopicEvolveE as a parameter instead of using WarpX::macroscopic_solver_algo by @lucafedeli88 in #5770
• Add Python hook to change do_no_gather and do_not_deposit value for particle container by @roelof-groenewald in #6190
• Move PushType enum to WarpXAlgorithmSelection.H by @EZoni in #6187
• Add CI test to read particles from openPMD by @RemiLehe in #5937
• Fix Warning: GNU 11 + NVCC 11.7 by @ax3l in #6193
• Python: load_inputs_file by @ax3l in #6154
• Dependencies: weekly update by @github-actions[bot] in #6196
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6198
• Add time-varying external fields by @SeverinDiederichs in #6194
• Fix a bug in the 2d mode of the IGF solver by @WeiqunZhang in #6199
• AMReX/pyAMReX/PICSAR: Weekly Update by @ax3l in #6201
• Fix: Config.precision by @ax3l in #6200
• Update Polaris install scripts by @roelof-groenewald in #6178
• Add option to have the process number of each box in the output by @atmyers in #6177
• Update the "X" in ASCII art "WarpX" text to look more like our new logo by @lucafedeli88 in #6185
• Docs: fix link to input files by @aeriforme in #6204
• Some cleaning of the #include directives by @lucafedeli88 in #6209
• Use a different name for Breit-Wheeler-specific functions by @RemiLehe in #6208
• Binary collisions: move two-product initialization out of the fusion folder by @RemiLehe in #6212
• DSMC: rename m_ioniz_product to m_product by @RemiLehe in #6211
• LinearBreitWheelerCollisionFunc.H and LinearComptonCollisionFunc.H : remove unnecessary #include of the WarpX header by @lucafedeli88 in #6217
• Some cleaning of the #include directives (II) by @lucafedeli88 in #6216
• Initial Box Splitting (Profile): NRandomPerCell by @ax3l in #6159
• Dependencies: weekly update by @github-actions[bot] in #6224
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6228
• Add rotation to Gaussian beam initialization by @aeriforme in #4767
• Use shuffling to avoid N^2 computation in luminosity calculation by @atmyers in #6192
• AddParticles.cpp : fix "maybe-uninitialized" issue for variable XDim3 r by @lucafedeli88 in #6230
• Rename WarpXParticleContainer's member variable mass to m_mass by @EZoni in #6232
• Implicit particle suborbits refactor. by @JustinRayAngus in #6202
• Fix input file of photon pusher test by @EZoni in #6235
• MusclHancockUtils.H: remove unnecessary min3 and max3 helper functions by @lucafedeli88 in #6234
• Add error message for non-supported scattering processes in DSMC by @roelof-groenewald in #6236
• WarpX class: remove unnecessary getPMLRZ() method from WarpX class by @lucafedeli88 in #6237
• WarpX class: move UpdateInjectionPosition method to anonymous namespace in WarpXMovingWindow.cpp by @lucafedeli88 in #6238
• Fix position update for flux of photons by @EZoni in #6231
• Only allow Gaussian beam rotation in 3D and 2D XZ by @aeriforme in #6242
• WarpX class: remove unused variables plotfile_headerversion and slice_plotfile_headerversion by @lucafedeli88 in #6244
• SpectralFieldData, SpectralFieldDataRZ, SpectralSolver : move implementation of some methods from the header to the cpp file by @lucafedeli88 in #6226
• Shared deposition not implemented in RCYLINDER and RSPHERE geometries by @EZoni in #6213
• Docs: fix two broken links by @aeriforme in #6246
• Release: WarpX 25.10 by @github-actions[bot] in #6239

Full Changelog: 25.09...25.10

25.09

Dependencies

• AMReX: 25.09
• pyAMReX: 25.09
• PICSAR-QED: 25.06
• picmistandard: 0.33.0
• openPMD-api: 0.16.1
• Python: 3.9 - 3.13

What's Changed

• Add tutorials section in documentation by @aeriforme in #6065
• Refactor ReadBCParams by @lucafedeli88 in #5767
• Update to use the correct stencils in FieldPoyntingFlux by @dpgrote in #6060
• Fix external field reading, in RZ geometry by @RemiLehe in #6069
• Fix mislabeled diagnostic output for macroscopic media by @bnara in #6072
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6075
• CI: Remove Hard-Coded Path to Checksum Files by @EZoni in #5888
• Dependencies: weekly update by @EZoni in #6074
• Add full mass matrices for charge-conserving Villasenor deposition by @JustinRayAngus in #6021
• Several fixes for warnings from doxygen by @dpgrote in #6076
• Python: Precision & SIMD in Config by @ax3l in #6089
• Load density from openPMD file by @WeiqunZhang in #6062
• Docs: Hide tutorial chapter title from front page by @EZoni in #6070
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6099
• Updated output for quadratic rho and J time dependencies by @oshapoval in #6093
• Doc Tuo (LLNL): Small Typos by @ax3l in #6100
• Dependencies: weekly update by @EZoni in #6098
• Automated workflows for weekly update and monthly release by @EZoni in #6054
• Add WarpX logo in the ReadTheDocs documentation by @RemiLehe in #6101
• CMake: WarpX_SIMD in C++20 or Newer by @ax3l in #6086
• CMake: Fix Fast-Math with Pre-built AMReX by @ax3l in #6096
• Doxygen: remove obsolete macros from Doxyfile by @EZoni in #6079
• used perform data write in all BTD cases by @guj in #5963
• CuPY not compatible with cython 3.1 by @titoiride in #5991
• Refactor Implicit parameters in readthedocs by @JustinRayAngus in #6095
• Tuolumne (LLNL): Jobscript Updates by @ax3l in #6105
• Add linear Compton scattering by @aeriforme in #5878
• Added 1D & 2D CI test with loading density from .h5 file by @oshapoval in #6106
• Add recent papers citing/using WarpX by @RemiLehe in #6111
• Update WarpX's high-level description by @RemiLehe in #6103
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6114
• CI: edit permissions for autoupdate workflows by @EZoni in #6112
• Update the embedded documentation hyperlink for parallelization info to a working URL by @Noerr in #6108
• Fix openPMD output of "eb_covered" in RZ geometry by @RemiLehe in #6110
• Add verbosity flag for diagnostics by @roelof-groenewald in #6092
• CI: debug autoupdate workflows (GitHub Actions) by @EZoni in #6115
• Implicit push cleanup by @JustinRayAngus in #6120
• Linear Compton follow-up 1 by @aeriforme in #6119
• Add CI load density RZ by @oshapoval in #6118
• Update the WarpX intro page by @RemiLehe in #6124
• Update acknowledgment slide by @aeriforme in #6104
• Set synchronize_velocity_for_diagnostics = true by @dpgrote in #5821
• created an ImplicitOptions struct to pass into Evolve(). by @JustinRayAngus in #6116
• Fix --skip-fields behavior when running default regression test by @aeriforme in #6129
• CI: workaround for macOS issue by @EZoni in #6136
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6133
• FlushFormat int comp writing by @JustinRayAngus in #6130
• Implement particle suborbits for the implicit solver by @dpgrote in #5969
• Update picmi.py by @yanghf263 in #6137
• Documentation: update in adastra documentation by @grobertdautun in #6135
• Release: WarpX 25.09 by @github-actions[bot] in #6132

New Contributors

• @Noerr made their first contribution in #6108
• @github-actions[bot] made their first contribution in #6132

Full Changelog: 25.08...25.09

25.08

Dependencies

• AMReX: 25.08
• pyAMReX: 25.08
• PICSAR-QED: 25.06
• picmistandard: 0.33.0
• openPMD-api: 0.16.1
• Python: 3.9 - 3.13

What's Changed

• SYCL: Turn on AOT in CI and Update MKL by @WeiqunZhang in #6007
• Add function to get total kinetic energy for a given species by @roelof-groenewald in #5943
• Fix temperature deposition thread safety by @clarkse in #6001
• Moved particle creation routines into a new file by @dpgrote in #5997
• Rename np_current variable for more clarity by @EZoni in #6008
• Update dane scripts by @dpgrote in #6009
• Further optimizations for the binary collision module by @atmyers in #5981
• Initial partition based particle density profile by @WeiqunZhang in #5812
• Remove unused file from binary collisions module by @atmyers in #6015
• adding total iteration count to the nonlinear diagnostic file. by @JustinRayAngus in #6013
• Enable general weight scaling for radial particle distributions by @dpgrote in #5009
• fields.py relies on MultiFab global indexing by @dpgrote in #5407
• Fix energy and momentum conservation after pair wise Coulomb collisions by @dpgrote in #5932
• Update install direction in dane_warpx.profile.example by @dpgrote in #6010
• Fix GCC 8: stdc++fs by @ax3l in #5990
• PsatdAlgorithmRZ: Fix uninitialized member variable by @WeiqunZhang in #6017
• AMReX/pyAMReX/PICSAR: Weekly Update by @ax3l in #6026
• CMake: ABLASTR/WarpX/AMReX SIMD by @ax3l in #5966
• fixed index for gmres_iter in 1d planar pinch analysis script by @JustinRayAngus in #6023
• correct step for writing of diagnostic file for the Picard nonlinear … by @JustinRayAngus in #6024
• refactored how to reflect/set Rho and J at PEC/PMC boundaries. by @JustinRayAngus in #5909
• ensure time solver-dependent alpha is set correctly in the curl-curl PC. by @JustinRayAngus in #6022
• permit CurlCurlMLMG with PEC and SilverMueller BCs. by @JustinRayAngus in #6027
• Added 1D Pierce Diode CI test by @oshapoval in #5999
• add comment about why tiling is not permitted. by @JustinRayAngus in #6029
• SymPy > 1.12.1 yield wrong results in PSATD symbolic notebooks by @EZoni in #5968
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6020
• Weekly update of dependencies by @EZoni in #6032
• Update perlmutter.rst by @truewis in #6018
• Bug fix: Mixed precision builds fail due to conflicting types by @roelof-groenewald in #6028
• PlasmaInjector.H: Hide openPMD.hpp by @ax3l in #6016
• Add --release option to script for update of dependencies by @EZoni in #6033
• Fix string concatenation in assert by @AlexanderSinn in #6040
• Update dependencies by @EZoni in #6043
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6046
• Doc: openPMD Airplane Mode by @ax3l in #6044
• Doxygen CI: Warnings as Error by @ax3l in #3560
• Run test_2d_theta_implicit_strang_psatd test on one processor by @dpgrote in #6050
• Doxygen: No Python by @ax3l in #6052
• Ascent 0.9.3 by @ax3l in #6051
• Tools: improve automated dependencies update by @EZoni in #6038
• Doc: oneAPI Requirements by @ax3l in #6055
• Updating initialization of external vector potential based fields to … by @clarkse in #6047
• AMReX/pyAMReX/PICSAR: Weekly Update by @ax3l in #6059
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6064
• Minor refactoring of PIC loop extracted from PR 5955 by @EZoni in #6012
• CMake: Add WarpX_FASTMATH by @ax3l in #6057
• WarpX 25.08 by @EZoni in #6066

New Contributors

• @truewis made their first contribution in #6018

Full Changelog: 25.07...25.08

25.07

Dependencies

• AMReX: 25.07
• pyAMReX: 25.07
• PICSAR-QED: 25.04
• picmistandard: 0.33.0
• openPMD-api: 0.16.1
• Python: 3.9 - 3.13

What's Changed

• Deactivate failing Windows CI workflow by @RemiLehe in #5934
• Implement particle_max_grid_crossings by @dpgrote in #5866
• Bugfix: Hybrid-pic restart causing inconsistencies by @roelof-groenewald in #5906
• Fix checksum failure in LASY test by @RemiLehe in #5941
• Simplify logic in the DSMC code by @RemiLehe in #5910
• Dependencies: Weekly Update by @EZoni in #5939
• Use the correct copy functor for DSMC impact ionization by @RemiLehe in #5940
• Run sanitizer test in double precision by @RemiLehe in #5936
• [Hackathon] Refactor ParserUtils and IntervalsParser by @WeiqunZhang in #5254
• Move RelativeCellPosition.H/cpp from Utils to ablastr/utils by @lucafedeli88 in #5898
• Enable Collocated grid Solve for Ohm's Law Hybrid solver by @clarkse in #5838
• Treat DSMC charge exchange as a product-producing process by @oshapoval in #5908
• Updating documentation to clarify that certain callbacks are not exec… by @clarkse in #5954
• Mini-PR: Fix outdated line in documentation by @roelof-groenewald in #5951
• Use step to determine collision execution rather than time by @roelof-groenewald in #5944
• Switch Windows Clang test to windows-2022 by @RemiLehe in #5930
• Adding flags to field initializer objects in PICMI to control project… by @clarkse in #5956
• CI: Fix Skipped Required Workflows (again) by @EZoni in #5907
• Update reference to new paper by @RemiLehe in #5883
• Move WarpX::ErrorEst from Utils/WarpXTagging.cpp to WarpX.cpp by @lucafedeli88 in #5897
• LLNL (LC) Tioga w/o MI300A by @ax3l in #5970
• CI: improve paths exclusion filters by @EZoni in #5972
• Doc LLNL (LC) Tuolumne by @ax3l in #5971
• CI: fix Open MPI bug in Azure pipelines by @EZoni in #5973
• Update picmi.py to clarify the effect of holmstrom_vacuum_region by @yanghf263 in #5977
• AMReX/pyAMReX/PICSAR: Weekly Update by @ax3l in #5948
• RZ: GPU-Side Abort in FDTD by @ax3l in #5974
• Aurora setup by @zippylab in #5979
• Add feature running variance deposition by @clarkse in #5811
• Clang UB sanitizer CI test: increase coverage by @lucafedeli88 in #5597
• Adds emojis to issues template names by @aeriforme in #5964
• Tuolumne (LLNL): AMReX Memory Release by @ax3l in #5982
• Tools: simplify workflows for commit, version updates by @EZoni in #5965
• Add new paper using WarpX to highlights by @roelof-groenewald in #5989
• CMake: Fix Superbuilds by @ax3l in #5993
• Splitting: Remove pc_tmp by @ax3l in #5992
• Allow rigid free-drift in transverse coordinates by @bnara in #5986
• Fixing initialization of external vector potential when using periodi… by @clarkse in #5988
• Add new paper using WarpX for Hall thruster simulations by @RemiLehe in #5995
• Reduce kernel sizes by @roelof-groenewald in #5994
• Infrastructure for using full mass matrices in the implicit solvers by @JustinRayAngus in #5929
• FullDiagnostics.cpp : use WARPX_ABORT_WITH_MESSAGE instead of std::cout by @lucafedeli88 in #6000
• Remove inclusion of unused header ablastr/parallelization/KernelTimer.H by @lucafedeli88 in #6002
• Fix moving-window subvolume field output by @bnara in #5985
• Release: 25.07 by @EZoni in #5996

New Contributors

• @yanghf263 made their first contribution in #5977
• @zippylab made their first contribution in #5979

Full Changelog: 25.06...25.07

25.06

Dependencies

• AMReX: 25.06
• pyAMReX: 25.06
• PICSAR-QED: 25.04
• picmistandard: 0.33.0
• openPMD-api: 0.16.1
• Python: 3.9 - 3.13

What's Changed

• Add new references using WarpX by @RemiLehe in #5879
• adastra-cines/submit.sh: updated job script example by @grobertdautun in #5850
• use verbose flag in nonlinear solvers for Print() lines. by @JustinRayAngus in #5881
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #5887
• Scale the charge/current in RZ geometry when folding high-radius guard cells into domain by @RemiLehe in #5886
• Update frontier_warpx.profile.example by @titoiride in #5885
• WarpXFluidContainer::InitData : pass parameters as function arguments instead of using static variables of the WarpX class by @lucafedeli88 in #5787
• Move auxiliary function CountExtFaces from WarpX header to anonymous namespace in WarpXFaceExtensions by @lucafedeli88 in #5800
• moving Implicit routines from WarpX class to base ImplicitSolver class by @JustinRayAngus in #5882
• Dependencies: Weekly Update by @EZoni in #5884
• Fix direction in spacecraft chargining picmi script by @RevathiJambunathan in #5891
• adding limit_verbose_step flag. by @JustinRayAngus in #5880
• Add 1d cylinder and sphere by @dpgrote in #5189
• Implementing PETSc interface for preconditioned linear solves by @debog in #5856
• Exposing mf register by @RevathiJambunathan in #5846
• PML_RZ: don't use warpx static variables directly by @lucafedeli88 in #5893
• Remove superfluous if condition in impact ionization by @RemiLehe in #5895
• AcceleratorLattice.cpp: fix typo in a comment by @lucafedeli88 in #5903
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #5904
• Dependencies: Weekly Update by @EZoni in #5900
• CI: Fix Skipped Required Workflows by @EZoni in #5889
• Pass Efield as optional argument to computePhi by @roelof-groenewald in #5871
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #5911
• Dependencies: Weekly Update by @EZoni in #5912
• CI: Update PETSc Workflows by @EZoni in #5914
• Fix table in Docs/source/developers/dimensionality.rst by @dpgrote in #5920
• Add new paper by @RemiLehe in #5921
• For FieldEnergy, use validbox instead of tilebox for the volume factor by @dpgrote in #5922
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #5924
• remove erroneous use of is_tangent_to_bndy in SetRhoOrJfieldFromPEC() by @JustinRayAngus in #5905
• permit particle shape = 3 and 4 with mass matrices. by @JustinRayAngus in #5919
• Add new field diagnostic that indicates whether a given cell is covered by the EB or not by @RemiLehe in #5925
• Release: 25.06 by @EZoni in #5933

Full Changelog: 25.05...25.06