26.06

Dependencies

• AMReX: 26.06
• pyAMReX: 26.06
• PICSAR-QED: 26.06
• pybind11: 3.0.4
• picmistandard: 0.34.0
• openPMD-api: 0.17.0
• Python: 3.11 - 3.14

What's Changed

• implement mass matrices for cylindrical geometries by @JustinRayAngus in #6738
• Dependencies: weekly update by @github-actions[bot] in #6833
• Fix few comments and typos by @EZoni in #6855
• bug fix in ApplyInverseVolumeScaling by @JustinRayAngus in #6856
• Update implicit scheme PICMI interface by @dpgrote in #6853
• do not deposit mass matrices for photons by @JustinRayAngus in #6860
• Clean-up: moved current correction print statement inside PSATD solver condition by @oshapoval in #6721
• do not deposit/gather neutrals by default. by @JustinRayAngus in #6861
• implicit restart bug fix by @JustinRayAngus in #6864
• Add Hedlof (2026) reference for effective potential solver to docs by @roelof-groenewald in #6871
• Fix anonymous hyperlink mismatch by @EZoni in #6875
• Dependencies: weekly update by @github-actions[bot] in #6866
• Add missing term in RZ vector Laplacian for magnetostatic solver by @RemiLehe in #6516
• Ohm solver: add field checksums to RZ EM modes test by @EZoni in #6862
• Adaptive RKF45 subcycling for hybrid-PIC B-field advance by @prkkumar-he in #6844
• Small performance improvement in RKF45 integrator by @roelof-groenewald in #6878
• GPU kernel fuses in RKF45 integrator by @roelof-groenewald in #6880
• Fix wrong assertion in WarpX::FillBoundaryB_avg by @EZoni in #6882
• Docs: document new RKF45 parameters for hybrid-PIC B-field advance by @RemiLehe in #6883
• Update documentation on dimensionality by @EZoni in #6873
• only advance photons at end of step for implicit. by @JustinRayAngus in #6867
• Boris pusher: exact half-angle splitting for FirstHalf/SecondHalf by @RemiLehe in #6886
• Doc: BibTex Duplicates by @ax3l in #6891
• Reduce MPI communication in RKF45 integrator by @roelof-groenewald in #6887
• Dependencies: weekly update by @github-actions[bot] in #6890
• Add checks for MR and subcycling requirements by @oshapoval in #6755
• Clarify validity of the temperature diagnostic by @RemiLehe in #6895
• Update initial substep number based on prev step in RKF45 by @roelof-groenewald in #6888
• Change assert to warning about particle count in RZ by @roelof-groenewald in #6830
• Clang-tidy CI test : bump version of clang-tidy from 18 to 19 by @lucafedeli88 in #6893
• Update Roelof's affiliation by @RemiLehe in #6905
• Do not trigger CI on changes to .zenodo.json by @EZoni in #6906
• clang-sanitizers CI test : bump clang version from 17 to 19 by @lucafedeli88 in #6901
• Record separate mode checksums for openPMD RZ tests by @EZoni in #6898
• DSMC ion impact ionization: ionization products are created with collinear velocities by @RemiLehe in #5868
• Small code cleaning PR in DSMC ionization by @roelof-groenewald in #6911
• Particle thermalizer : allow setting different thresholds for the three momentum components by @lucafedeli88 in #6903
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci[bot] in #6912
• Unify 'maxwellian_boltzmann' and 'gaussian_parse_momentum_function' under 'maxwellian' momentum distribution by @oshapoval in #6896
• Follow-up PR: removes redundant check and updates u_mean set up in CI by @oshapoval in #6914
• Apply BCs to B/E external (initial) fields by @roelof-groenewald in #6897
• RZ/RCYLINDER/RSPHERE: Rename PIdx:x to PIdx:r by @ax3l in #4667
• Perform 0 timestep in test_3d_initial_distribution by @RemiLehe in #6921
• GuardCellManager: expand rho guards when filter is active by @WeiqunZhang in #6663
• Hybrid-PIC optimization - CalculatePlasmaCurrent by @roelof-groenewald in #6571
• ABLASTR: Degree to Radian by @ax3l in #6852
• Increase CCACHE_MAXSIZE for Clang sanitizers workflows by @EZoni in #6926
• Dependencies: weekly update by @github-actions[bot] in #6910
• Pre-Commit: GitLeaks by @ax3l in #6929
• Always sort keys with json dump for benchmarks by @dpgrote in #6930
• Update default CCache version to 4.13.6 by @ax3l in #6932
• Fix odd indentation in .pre-commit-config.yaml by @EZoni in #6931
• Fix openPMD RZ & 1R Particle Diagnostics by @ax3l in #6857
• DSMC electron impact ionization: isotropic, equal-energy electron scattering by @RemiLehe in #6925
• Fix macroscopic EM solver in 1D geometry by @tomzhu0225 in #6937
• Obtain scattering angle from Bobylev's delta function distribution for Coulomb collisions by @JustinRayAngus in #6904
• Updated Example/Plasma-Based Acceleration section: added example RZ PSATD on a boosted frame by @oshapoval in #6361
• Maxwell-Juttner: sample Gaussian at low temperature instead of aborting by @RemiLehe in #6922
• Implement inverse bremsstrahlung by @dpgrote in #5839
• ABLASTR: Move IntervalsParser by @ax3l in #6933
• Node.js 20 actions are deprecated by @EZoni in #6941
• CI: trust openpmd tap to fix brew untrusted formula error by @EZoni in #6943
• Split Clang sanitizers workflows by @EZoni in #6940
• Release: WarpX 26.06 by @github-actions[bot] in #6916

New Contributors

• @prkkumar-he made their first contribution in #6844
• @tomzhu0225 made their first contribution in #6937

Full Changelog: 26.05...26.06