.. _release-notes_0.3:

***********
Version 0.3
***********

.. 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.

0.3.0
=====

**Date**: 23 September 2025

New features
------------

* Refactor and expose to public :ref:`api_si` submodule that collects units of
  International system of units (SI) and physical constants that are expressed in SI.
* :py:func:`.experimental.plot_dispersion`
* Second scale with eigenfrequiencies in THz for "OMEGAS.png" and "DELTAS.png" plots of
  :ref:`user-guide_cli_lswt`.

Bugfix
------

* Fix :issue:`55` (see also :PR:`65`).
* Fix :issue:`66`.
* Implement logic for input and output units (:issue:`67`)

  * :py:attr:`magnopy.SpinHamiltonian.units`.
  * ``units`` keyword in :py:meth:`.SpinHamiltonian.add_1`,
    :py:meth:`.SpinHamiltonian.add_21`, :py:meth:`.SpinHamiltonian.add_22`,
    :py:meth:`.SpinHamiltonian.add_31`, :py:meth:`.SpinHamiltonian.add_32`,
    :py:meth:`.SpinHamiltonian.add_33`, :py:meth:`.SpinHamiltonian.add_41`,
    :py:meth:`.SpinHamiltonian.add_421`, :py:meth:`.SpinHamiltonian.add_422`,
    :py:meth:`.SpinHamiltonian.add_43`, :py:meth:`.SpinHamiltonian.add_44`.
  * ``units`` keyword in :py:meth:`.Energy.E_0`, :py:meth:`.Energy.gradient`,
    :py:meth:`.Energy.torque`.
  * ``units`` keyword in :py:meth:`.LSWT.E_2`, :py:meth:`.LSWT.O`, :py:meth:`.LSWT.A`,
    :py:meth:`.LSWT.B`, :py:meth:`.LSWT.GDM`, :py:meth:`.LSWT.diagonalize`,
    :py:meth:`.LSWT.omega`, :py:meth:`.LSWT.delta`.
  * ``units`` keyword in :py:func:`.multiprocess_over_k`.

Breaking changes wrt 0.2
========================

Deprecated features
-------------------

* :py:func:`.io.plot_k_resolved`