Version 0.6

0.6.1

Date: 19 June 2026

New features

• only_if_defined in Convention.get_modified().

Bugfix

• Fix issue #131: renormalization of 3-spin parameters.

• Fix a bug in is_eigenstate(): mismatch of ndarray types (float vs complex).

Improvements

• Implement issue #130

0.6.0

Date: 18 June 2026

New features

• Move tests to the installable package. Introduce test() and magnopy test CLI command.

Bugfix

• Rare bug with change of units and non-zero magnetic field: the units of ._zeeman_parameters were not converted, which can lead to complex undesired behavior. This is now fixed, and the units of ._zeeman_parameters are converted together with the units of ._parameters when the units are changed using SpinHamiltonian.units().

• Fix issue #124: four-spin parameters were not renormalized correctly, due to typos in the source code.

Improvements

• Implement issue #42.

Breaking changes wrt 0.5

Deprecated features

• Method SpinHamiltonian.symmetrize(). Use SpinHamiltonian.set_distribution() with strategy="symmetrize" instead. SpinHamiltonian.symmetrize() will be removed in November of 2026.

Removed features

• Convention.summary(). Use print(convention) or str(convention) instead.

• Option h in SpinHamiltonian.add_magnetic_field(). Use B instead.

• Option flat in logo(). As there is only one variation of the logo now, this option is not needed. Existing code will still function, but it will raise a warning. Please remove the flat option from your code.

• Option info in logo() is removed. The existing code will still function, but it will raise a warning. Please remove the info option from your code, as it is ignored now.

Change of behavior

• Redesign logo of Magnopy to use only ASCII characters. Output of the magnopy.logo() has new format.

• Rename option comment to comment_char in logo(). Existing code will function the same, but it will raise a warning.

• Option line_length in logo() is renamed to line_width. The existing code will still function, but it will raise a warning.