.. currentmodule:: discretize

.. _0.7.2_notes:

===================================
``discretize`` 0.7.2 Release Notes
===================================

December 6, 2021

This patch release is for a minor improvements to a few functions

Searching
---------
The function ``closest_points_index`` now exists on the `base.BaseMesh`, with a default
implementation based on a KDTree lookup. This allows for much faster repeated calls.
The previous function one off function will now point to this method on the mesh.

Negative Levels
---------------
To referring to levels on ``TreeMesh`` refine functions, you can now pass negative
integers to refer to the maximum refine level (similar to negative indexing on arrays)

Contributors
============

* @jcapriot
* @ngodber

Pull requests
=============

* `#251 <https://github.com/simpeg/discretize/pull/251>`__: refactor closest_points_index to use cKDTree.
* `#267 <https://github.com/simpeg/discretize/pull/267>`__: TreeMesh negative levels
* `#270 <https://github.com/simpeg/discretize/pull/270>`__: ensure the grid locations are (N x dim) happens in 1D