Version History

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

Version 1.7.1 (15 Aug 2024)

  • Fix incorrect time array size in report function

Version 1.7.0 (7 May 2024)

  • New sobj function to evaluate the objective and sparse gradient

  • New sgrad function to evaluate the sparse gradient only

  • Document the need to install Python headers on Ubuntu

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