v2026.4.16

• PR #10 Updates to LAMMPS input set generators for compatibility with new atomate2 workflows (by @vir-k01)
• PR #16 Vasprun XML parsing (io.vasp.outputs): use explicit lxml tags to reduce overhead (by @wladerer)
• PR #22 BztPlotter.plot_props: validate band-property keys early to avoid AttributeError on unsupported properties (by @deepanshuaggarwal51)
• Dependabot: bump orjson (PR #6), requests (PR #9), and pillow (PR #23)
• PR #24 Fix incorrect oriented unit cell from SlabGenerator.get_slab when using constrained OUC primitive matching (by @ThomasWarford)
• PR #25 Lazy-import matplotlib.pyplot in structure_analyzer (by @lan496)
• PR #26 Fix deserialization of legacy phase diagram serialized data (by @esoteric-ephemera)
• VASP input sets: pass kpath_kwargs into HighSymmKpath when building k-points from line-density configurations
• Linting, typing, and mypy cleanups

v2026.4.7

• Phase diagram, reaction calculator and chempot diagrams are added to pymatgen-core.
• PR #15 VaspInputSet: Display a warning when changing ISMEAR (by @yantar92)

v2026.3.9

• PR #5 Add lobster io and electronic_structure/cohp.py module with history (by @naik-aakash)
• PR #4 Add support for jdftx YAML files in pyproject.toml (by @cote3804)

v2026.2.24

• First version of pymatgen-core, which includes all basic functionality of pymatgen.
• Some refactoring of certain modules, e.g., structure_matcher, molecule_matcher, elasticity, etc. into
  pymatgen/core.