Add info about polar tick(label) changes.

QuLogic · QuLogic · commit 5f1ecbd21795 · 2017-09-25T17:35:52.000-04:00
diff --git a/doc/users/whats_new.rst b/doc/users/whats_new.rst
@@ -62,6 +62,10 @@ negative values are simply used as labels, and the real radius is shifted by
 the configured minimum. This release also allows negative radii to be used for
 grids and ticks, which were previously silently ignored.
 
+For plots of a partial circle, radial ticks and tick labels have been modified
+to be parallel to the circular grid line. Angular ticks have been modified to
+be parallel to the grid line and the labels are now perpendicular to the grid
+line (i.e., parallel to the outer boundary.)
 
 
 Merge JSAnimation
