Updated changelog.

Author: hcpchris

CHANGES.rst

@@ -1,3 +1,15 @@
+Release 1.0.0-rc8
+=========================================
+
+* **BUG:** #25. Fixed the edge case where if multiple notebooks are open in Jupyter Labs and
+  different notebooks use the same container, the charts get rendered in *one* container.
+* **BUG:** Fixed bug when serializing a string value equal to ``'Date'``.
+* **BUG:** Fixed boolean handling in ``options.legend.LegendOptions.shadow``.
+* **Enhancement:** Added ``.from_array()`` support to the ``decorators.validate_types()`` function.
+* **BUG:** Fixed data valization in ``options.plot_options.pie.PieOptions.end_angle`` and ``.start_angle``.
+
+---------------
+
 Release 1.0.0-rc7
 =========================================