Highlights:

• Added support for python 3.14

• Modernized the build system to use scikit-build-core, and supports uv now too

• Added methods for ideal gas properties

• More tweaks to iterative routines

Issues closed:

• #2589 : Properties of Air as an Ideal Gas

• #2622 : R123...

Highlights:

• Fixed performance regression for P+{H,S,U} and T+{H,S,U,D} caused by copies being made of the superancillary data structures

• Flash routine tuning to improve robustness in the critical region

Issues closed:

• #2491 : Xenon properties near the critical point

• [#2582](https://github.com/CoolProp/CoolProp/issues/25...

Highlights:

• [BREAKING] Added superancillary functions for all pure fluids with multiparameter EOS; see docs: https://www.coolprop.org/coolprop/SuperAncillary.html . Huge speedup for some properties!
• [BREAKING] Changed EOS for methanol to match that in REFPROP
• Finally(!) got the Catch2 tests to all pass
• Update docs to use the pydata sphinx theme
• Improvements and changes to javasc...

Highlights:

• Implement the COOLPROP_REFPROP_ROOT environment variable to make REFPROP integration easier
• Allow the configuration variables to be set via environment variables

Issues closed:

• https://github.com/CoolProp/CoolProp/issues/1829 : CoolProp can't load REFPROP v10 mixtures on Debian 9
• https://github.com/CoolProp/CoolProp/issues/1870 : n-pentane inconsistency properties...

v6.7.0

Download location: https://sourceforge.net/projects/coolprop/files/CoolProp/6.7.0/

Highlights:

• Added wheels for Python 3.13
• Added EOS for R-1336mzz(E)

Issues closed:

• https://github.com/CoolProp/CoolProp/issues/2307 : Feature Request: Implementation of the novel Refrigerant R1336mzz(e) into HEOS Backend
• https://github.com/CoolProp/CoolProp/issues/2325 : HEOS::R1336MZ...