Version 0.4#

0.4.3#

Date: 9 January 2026

Improvements#

Make LSWT diagonalization more numerically stable. This should fix rare cases of non-continues magnon spectra.
Improve speed of the LSWT diagonalization (up to the factor x2).

0.4.2#

Date: 21 November 2025

Bugfix#

Fix a rare bug with p21 parameter in the dispersion calculation.
Fix issue #79: Incorrect sorting of the eigenvectors in edge cases, introduced in 0.2.

Improvements#

Improve text of warnings of the magnopy-lswt script.

0.4.1#

Warning

We recommend not to use this version of Magnopy due to issue #79, that can affect some (not all) calculations of spin wave spectra. Use 0.4.2 and later instead.

Date: 3 November 2025

Bugfix#

Fix issue #80: a bug in magnopy-lswt when using --k-points argument.

0.4.0#

Date: 23 October 2025

Warning

We do not recommend to use magnopy-lswt script with --k-points argument of this version. There is a bug that was fixed in 0.4.1.

New features#

Together with this release we release a master tutorial about Magnopy: Tutorials.
Add summary of the executed commands to the output of both magnopy-lswt and magnopy-optimize-sd.
Add output of magnetic field to magnopy-optimize-sd.
Add "E_0.txt" output file to magnopy-optimize-sd.
Add "E_0.txt", "E_2.txt" and "ONE_OPERATOR_TERMS.txt" output file to magnopy-optimize-sd.
Add parameter B in SpinHamiltonian.add_magnetic_field().
Implement issue #72: .Convention.__str__() and .Convention.__repr__().
Implement .Convention.__hash__().
Implement when_present argument in SpinHamiltonian.add_1(), SpinHamiltonian.add_21(), SpinHamiltonian.add_22(), SpinHamiltonian.add_31(), SpinHamiltonian.add_32(), SpinHamiltonian.add_33(), SpinHamiltonian.add_41(), SpinHamiltonian.add_421(), SpinHamiltonian.add_422(), SpinHamiltonian.add_43(), SpinHamiltonian.add_44().
Implement spin_values in io.load_grogu(), same as in io.load_tb2j().
Implement issue #75: --spglib-types in magnopy-lswt.
Implement io.plot_dispersion().
Support --spin-values for the GROGU as well in magnopy-optimize-sd and magnopy-lswt.

Bugfix#

Fix issue #74: a bug in magnopy-lswt, when it is used with --k-points argument.
Fix a bug in examples.ivuzjo().

Improvements#

Overall improvement of the console output for both magnopy-lswt and magnopy-optimize-sd.
Extend hover information in experimental.plot_spinham().

Breaking changes wrt 0.3#

Deprecated features#

Convention.summary() use print(convention) or str(convention) instead.
replace argument in SpinHamiltonian.add_1(), SpinHamiltonian.add_21(), SpinHamiltonian.add_22(), SpinHamiltonian.add_31(), SpinHamiltonian.add_32(), SpinHamiltonian.add_33(), SpinHamiltonian.add_41(), SpinHamiltonian.add_421(), SpinHamiltonian.add_422(), SpinHamiltonian.add_43(), SpinHamiltonian.add_44(). Use when_present="replace" instead.
h in SpinHamiltonian.add_magnetic_field() in favor of B.
experimental.plot_dispersion() use io.plot_dispersion() instead.