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Merge pull request #135 from bluesky/0.3.16-release-notes
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DOC prep for v0.3.16 release
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prjemian authored Apr 28, 2021
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Expand Up @@ -18,15 +18,52 @@ release date.

.. [#] https://github.com/bluesky/hklpy/milestone/5
v0.3.16 (expected by 2021-04-30)
================================

Full list of changes is on the `wiki
<https://github.com/bluesky/hklpy/wiki/release-notes-v0.3.16>`_.

New Features and/or Enhancements
--------------------------------

* Diffractometer additions from apstools

- simple user interface for a diffractometer
- constraints

* Create simulators for common geometries.

- ``hkl.geometries.SimMixin`` for simulators.

Fixes
-----

* Ensure that diffractometer energy is read-only (and not modified) by changes in units or energy offset.
* Diffractometer responds to energy, energy units, and energy offset PV updates now.

Maintenance
-----------

* separate diffractometer geometry instances from base class
* refer to the hkl C++ library code as **libhkl**
* add Python 3.9 to unit test suite
* now can use Python f-strings
* re-arrange documentation structure
* define ``__all__`` in modules

v0.3.15 (2020-12-20)
====================

Full list of changes is on the `wiki
<https://github.com/bluesky/hklpy/wiki/release-notes-v0.3.15>`_.

Breaking Changes
----------------

* Diffractometer wavelength **must** use *angstrom* units to match the
lattice constants. Previously, wavelength was stated to be in
`nm`. Instruments upgrading to this release should verify the units
``nm``. Instruments upgrading to this release should verify the units
actually in use.

New Features and/or Enhancements
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