Periodic table, physical constants, and molecule parsing for quantum chemistry.
https://github.com/MolSSI/QCElemental/blob/master/docs/changelog.rst#0271--2023-10-26
https://github.com/MolSSI/QCElemental/blob/master/docs/changelog.rst#0270--2023-10-24
https://github.com/MolSSI/QCElemental/blob/master/docs/changelog.rst#0260--2023-07-31
https://github.com/MolSSI/QCElemental/blob/master/docs/changelog.rst#0251--2022-10-31
v0.25.0 https://github.com/MolSSI/QCElemental/commit/295642189fe3c4d0812142c0304d8ae9c8674d4c https://github.com/MolSSI/QCElemental/blob/master/docs/changelog.rst#0250--2022-06-13
https://github.com/MolSSI/QCElemental/blob/master/docs/changelog.rst#0240--2021-11-18
https://github.com/MolSSI/QCElemental/blob/master/docs/changelog.rst#0230--2021-09-23
https://github.com/MolSSI/QCElemental/blob/master/docs/changelog.rst#0220--2021-08-26
https://github.com/MolSSI/QCElemental/blob/master/docs/changelog.rst#0210--2021-06-30
https://github.com/MolSSI/QCElemental/blob/master/docs/changelog.rst#0200--2020-05-16