Version History

This section lists the different versions of PyCUTEst and the updates between them.

Version 1.6.2 (9 Apr 2024)

Migrate from setup.py to pyproject.toml

Version 1.6.1 (8 Mar 2024)

Add setuptools requirement to setup.py

Version 1.6.0 (24 Jan 2024)

New grad function to evaluate the gradient only
New lag function to evaluate the Lagrangian

Version 1.5.1 (8 Aug 2023)

Fix invalid sparse dimensions while dropping fixed variables
Rename equality to fixed constraints for clarity
Restore current working directory on failure
Fix conversion of 1x1 NumPy arrays to scalars

Version 1.5.0 (22 Feb 2023)

Fix memory leak in C interface (cache-breaking change)
Modernise C interface (cache-breaking change)
Drop Python 2.7 support as it is EOL
Fix installs on non-default homebrew paths
Use homebrew prefix for fallback paths on macOS
Switch to semantic versioning

Version 1.4 (24 Oct 2022)

Add guidelines for seeking support
Improve documentation

Version 1.3 (6 Sep 2022)

Use human-readable problem properties (breaking change)
Check v is/isn’t None for hess and sphess
Add types to problem method docstrings
Add guidelines for contributors
Simplify CUTEst installation
Add CUTEst docker install option
Improve documentation

Version 1.2 (21 Feb 2022)

Use setuptools instead of distutils
Remove deprecated NumPy calls
Improve macOS support
Update documentation

Version 1.1 (14 Feb 2022)

Automatically add PYCUTEST_CACHE to PYTHONPATH at runtime (simplifies installation)

Version 1.0 (22 Apr 2020)

Handle non-letter characters in SIF parameter names
Fix unclosed file warnings
Automatically check if PYCUTEST_CACHE variable is in system path

Version 0.2 (6 Jun 2019)

Throw RuntimeError if invalid sif parameters provided
Recognise local gfortran installation for Mac
Update required NumPy and SciPy versions for Python 2.7

Version 0.1 (6 Sep 2018)

Initial release of PyCUTEst