3.4.5: Maintenance Release

[guyer]

This maintenance release:

• Addresses compatibility with recent releases of Python 3.12, NumPy 2.0, SciPy 1.14, and PETSc 3.20.
• Adds conda-lock environment lock files with specified compatible versions of FiPy prerequisites.
• Fixes numerous documentation errors.

Important

SciPy 1.13.0 generates one test suite error for
fipy.matrices.scipyMatrix._ScipyMatrix.CSR. Either ignore the test
failure or upgrade to SciPy >= 1.13.1

Important

PETSc 3.21 crashes our test suite when running in parallel (#1054).
PETSc <= 3.20 is recommended, although petsc 3.20.2_*_102 is broken on macOS.

What's Changed

• Migrate pkg_resources to importlib by @guyer in Migrate pkg_resources to importlib #945
• Fix sign error in documentation of Robin condition by @guyer in Fix sign error in documentation of Robin condition #968
• Environment pinning by @guyer in Environment pinning #985
• Change default coefficient of ImplicitSourceTerm to 1 by @guyer in Change default coefficient of ImplicitSourceTerm to 1 #984
• Fix inclusion of environments/README.rst by @guyer in Fix inclusion of environments/README.rst #988
• Tweak documentation by @guyer in Tweak documentation #991
• Log much more information about FiPy environment by @guyer in Log much more information about FiPy environment #990
• Introduce Timer context manager by @guyer in Introduce Timer context manager #995
• Issue1000 examples.diffusion.mesh1D constrains a gradient but calls it a flux by @guyer in Issue1000 examples.diffusion.mesh1D constrains a gradient but calls it a flux #1001
• Convert integer to string in operator variable represenation by @guyer in Convert integer to string in operator variable represenation #1013
• switch nix recipe to flake by @wd15 in switch nix recipe to flake #992
• Fix explanation for no-flux steady-state failure by @guyer in Fix explanation for no-flux steady-state failure #1015
• Fixes for Python 3.12, NumPy 2.0, and SciPy 1.14 by @guyer in Fixes for Python 3.12, NumPy 2.0, and SciPy 1.14 #1050

Curated Changelog: https://github.com/usnistgov/fipy/blob/3.4.5/CHANGELOG.rst

Full Changelog: 3.4.4...3.4.5

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This discussion was created from the release 3.4.5: Maintenance Release.