Pymatgen

* New features to handle Grüneisen parameters (JaGeo, ab5424, gpetretto, 2190)
* New option to return SymmetrizedStructure in CifParser (mkhorton, 0d9a455)
* Fix for SubstrateAnalyzer (shyamd, 2198)
* Fix for BandFillingCorrection (kavanase, 2193)

* Add spin-dependent eigenvalue band properties (Andrew-S-Rosen, 2187)
* Bug fix for settings loading (ardunn, 2186)

* Significant new functionality for handling interfaces between structures (shyamd, 2149)
* Add input/output for CREST (arepstein, 2020)
* Add RadialSiteDistortionTransformation (nwinner, 2108)
* Add Q-Chem NBO functionality (samblau, 2174)
* Change hkl annotation format in diffraction plots (flaviu-gostin, 2143)
* Add space group to print output of `SymmetrizedStructure` (CompRhys, 2139)
* Better error handling in QCOutput (rkingsbury, 2147, 2165, 2135)
* Add progress bar for applying compatibility scheme (CompRhys, 2136)
* Allow combining data with multiple molecule IDs in LAMMPS (htz1992213, 2157)
* Update EDIFF in DFPT input set to be consistent with atomate (utf, 2172)

* Change names of high-symmetry paths (munrojm, 2144)
* Change default for filter_solids argument of PourbaixDiagram (rkingsbury, 2177)

* Fix to improve precision in `FermiDos`, NOTE: this can result in significant changes in some instances (nwinner, 2109)
* Fix for handling of Exceptions (kmu, 2150)
* Fix for PourbaixEntry (JosephMontoya-TRI, 2148)
* Fix for loading of settings from file when environment variables also set (ardunn, 2164)
* Fix equation for calculation of k-spacing in SCAN sets, NOTE: this now results in a lower k-point density (ab5424, 2163)
* Fix for parsing of VASP vasprun.xml when ALGO=CHI (KazMorita, 2171)

* Documentation update for MP2020 corrections scheme (rkingsbury, 2141)
* Documentation update for SCAN sets (janosh, 2140)
* Documentation update for using CifWriter (755452800, 2156)

* PR 2130 rkingsbury ensures that energy corrections applied to each anion
have unique names (e.g., N vs. Cl vs. Br).
* PR 2133 rkingsbury adds support for custom vdW radii to `QCInput` and
`QChemDictSet`. These radii are used in the construction of PCM cavities and
when calculating charges.
* PR 2123 from gpetretto fixes bug in `get_conventional_standard_structure`
method of the `SpacegroupAnalyzer` for triclinic crystals.
* PR 2134 from ab5424 supports zopen in parsing lammps logs
* PR 2132 from htz1992213 speeds up LammpsData.as_string for
non-hybrid data with large coeff sections and adds as_lammpsdata method to
CombinedData
* PR 2129 from CifLord improves analysis of surface symmetry of slabs.
* PR 2117 from nwinner contains bug fixes for bader caller.

* Improved Gaussian Cube I/O (nwinner, 2121)
* Updated van der Waals radii (rkingsbury, 2122)
* Update `MaterialsProject2020Compatibility` for multi-anion systems (rkingsbury, 2128)
* Fixes and improvements to Q-Chem parsing (samblau, 2125)
* Bug fix for isseus with hard-coded path in `MaterialsProject2020Compatibility` (CompRhys, 2124)
* Bug fix for DOS serialization (zooks97, 2119)
* Bug fix for XDATCAR lattice parsing (nkeilbart, 2115)
* Documentation link fix (adam-kerrigan, 2127)

* Feature to calculate Selling vectors and distances between Lattices (bwjustus, 1888)
* XPS Spectrum class added (shyuep, 2110, see `galore <https://github.com/SMTG-UCL/galore>`\_)
* Updated `MaterialsProject2020Compatibility` for formation energy correction (rkingsbury, 2106)
* Bug fix for detecting broken bonds in slab generation (fyalcin, 2015)
* Bug fix for electrodes (jmmshn, 2101)
* Documentation improvement for get_conventional_standard_structure (tom-wood, 2100)