* Added gradient fills to chart objects such as the plot area of columns. See :ref:`chart_formatting_gradient` and :ref:`ex_chart_gradient`. :feature:`228`.
0.7.0
-----------------------------
* Added support for display units in chart axes. See :func:`set_x_axis()`. :feature:`185`.
* Added ``nan_inf_to_errors`` :func:`Workbook` constructor option to allow mapping of Python `nan/inf` value to Excel error formulas in ``write()`` and ``write_number()``. :feature:`150`.
0.6.9
-----------------------------
* Added support for clustered category charts. See :ref:`ex_chart_clustered` for details. :feature:`180`.
* Refactored the :ref:`format` and formatting documentation.
0.6.8
-----------------------------
* Added option to combine two different chart types. See the :ref:`chart_combined_charts` section and :ref:`ex_chart_combined` and :ref:`ex_chart_pareto` for more details. :feature:`72`.
0.6.7
----------------------------
* Added option to add function value in worksheet :func:`add_table`. :feature:`216`.
* Fix for A1 row/col numbers below lower bound. :issue:`212`.
0.6.6
-------------------------------
* Fix for incorrect shebang line in `vba_extract.py` packaged in wheel. :issue:`211`.
* Added docs and example for diagonal cell border. See :ref:`ex_diagonal_border`.