matplotlib · tacaswell · Oct 3, 2019 · Oct 2, 2019
diff --git a/doc/api/next_api_changes/2018-09-18-AL.rst b/doc/api/next_api_changes/2018-09-18-AL.rst
diff --git a/doc/api/next_api_changes/2018-09-25-AL.rst b/doc/api/next_api_changes/2018-09-25-AL.rst
diff --git a/doc/api/next_api_changes/2019-08-01-AL.rst b/doc/api/next_api_changes/2019-08-01-AL.rst
diff --git a/doc/api/next_api_changes/behaviour.rst b/doc/api/next_api_changes/behaviour.rst
@@ -1,2 +1,19 @@
 Behaviour changes
 -----------------
+
+``Formatter.fix_minus``
+~~~~~~~~~~~~~~~~~~~~~~~
+`.Formatter.fix_minus` now performs hyphen-to-unicode-minus replacement
+whenever :rc:`axes.unicode_minus` is True; i.e. its behavior matches the one
+of ``.ScalarFormatter.fix_minus`` (`.ScalarFormatter` now just inherits that
+implementation).
+
+This replacement is now used by the ``format_data_short`` method of the various
+builtin formatter classes, which affects the cursor value in the GUI toolbars.
+
+``FigureCanvasBase`` now always has a ``manager`` attribute, which may be None
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Previously, it did not necessarily have such an attribute.  A check for
+``hasattr(figure.canvas, "manager")`` should now be replaced by
+``figure.canvas.manager is not None`` (or ``getattr(figure.canvas, "manager", None) is not None``
+for back-compatibility).
diff --git a/doc/api/next_api_changes/deprecated_empty_add_axes.rst b/doc/api/next_api_changes/deprecated_empty_add_axes.rst
diff --git a/doc/api/next_api_changes/deprecations.rst b/doc/api/next_api_changes/deprecations.rst
@@ -1,2 +1,14 @@
 Deprecations
 ------------
+
+``figure.add_axes()`` without arguments
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Calling ``fig.add_axes()`` with no arguments currently does nothing. This call
+will raise an error in the future. Adding a free-floating axes needs a position
+rectangle. If you want a figure-filling single axes, use ``add_subplot()``
+instead.
+
+``backend_wx.DEBUG_MSG``
+~~~~~~~~~~~~~~~~~~~~~~~~
+``backend_wx.DEBUG_MSG`` is deprecated.  The wx backends now use regular
+logging.