* Added support for the ``clip`` ufunc added in NumPy 1.17. See `PR 102 <https://github.com/yt-project/unyt/pull/102>`_.
2.3.0
------------------
* Added ``unyt.dimensions.accepts`` and ``unyt.dimensions.returns``, decorators that can be used to ensure that data passed into a decorated function has units that are dimensionally consistent with the function's expected inputs. See `PR 98 <https://github.com/yt-project/unyt/pull/94>`_. Thank you to Andrei Berceanu (berceanu on GitHub) for the contribution. * Added ``unyt.allclose_units`` and improved documentation for writing tests for code that uses ``unyt``. This is a wrapper for ``numpy.allclose`` that also checks the units of the input arrays. See `PR 94 <https://github.com/yt-project/unyt/pull/94>`_. Thank you to Andrei Berceanu (berceanu on GitHub) for the contribution.
2.2.2
------------------
* Fix erroneous conversions of E&M units to their "native" unit system, for example, converting Gauss to CGS units would return Tesla and converting Tesla to MKS units would return Gauss. See `PR 96 <https://github.com/yt-project/unyt/pull/96>`_.
2.2.1
------------------
* Add support for loading JSON unit registries saved by ``yt.units``. See `PR 93 <https://github.com/yt-project/unyt/pull/93>`_. * Correct the value of the ``light_year`` unit. See `PR 93 <https://github.com/yt-project/unyt/pull/93>`_. * It is now possible to define a ``UnitSystem`` object with a quantity. See `PR 86 <https://github.com/yt-project/unyt/pull/86>`_. * Incorrect units for Planck units have been fixed. See `PR 85 <https://github.com/yt-project/unyt/pull/85>`_. Thank you to Nathan Musoke (musoke on GitHub) for the contribution. * Updated value of Newton's constant to latest CODATA value. See `PR 84 <https://github.com/yt-project/unyt/pull/84>`_.
2.2.0
------------------
* Several performance optimizations. This includes a slight change to the behavior of MKS/CGS E&M unit conversions that makes the conversion rules slightly more relaxed. See `PR 82 <https://github.com/yt-project/unyt/pull/82>`_.
2.1.1
------------------
* Fixed an issue with restoring unit registries from JSON output. See `PR 81 <https://github.com/yt-project/unyt/pull/81>`_.