``ContourSet.collections``
~~~~~~~~~~~~~~~~~~~~~~~~~~

... has been removed.  `~.ContourSet` is now implemented as a single
`~.Collection` of paths, each path corresponding to a contour level, possibly
including multiple unconnected components.

``ContourSet.antialiased``
~~~~~~~~~~~~~~~~~~~~~~~~~~

... has been removed.  Use `~.Collection.get_antialiased` or
`~.Collection.set_antialiased` instead.  Note that `~.Collection.get_antialiased`
returns an array.

``tcolors`` and ``tlinewidths`` attributes of ``ContourSet``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

... have been removed.  Use `~.Collection.get_facecolor`, `~.Collection.get_edgecolor`
or `~.Collection.get_linewidths` instead.


``calc_label_rot_and_inline`` method of ``ContourLabeler``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

... has been removed without replacement.


``add_label_clabeltext`` method of ``ContourLabeler``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

... has been removed.  Use `~.ContourLabeler.add_label` instead.
