matplotlib
diff --git a/‎doc/api/next_api_changes/deprecations.rst
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diff --git a/‎lib/matplotlib/bezier.py
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diff --git a/‎lib/matplotlib/patches.py
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diff --git a/‎lib/matplotlib/tests/test_artist.py
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@@ -376,3 +376,13 @@ NavigationToolbar2QT.parent
 This attribute is deprecated.  In order to access the parent window, use
 ``toolbar.canvas.parent()``.  Once the deprecation period is elapsed, it will
 also be accessible as ``toolbar.parent()``.
+
+Path helpers in :mod:`.bezier`
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+``bezier.make_path_regular`` is deprecated.  Use ``Path.cleaned()`` (or
+``Path.cleaned(curves=True)``, etc.) instead (but note that these methods add a
+``STOP`` code at the end of the path).
+
+``bezier.concatenate_paths`` is deprecated.  Use ``Path.make_compound_path()``
+instead.
@@ -480,6 +480,8 @@ def make_wedged_bezier2(bezier2, width, w1=1., wm=0.5, w2=0.):
     return path_left, path_right
 
 
+@cbook.deprecated(
+    "3.2", alternative="Path.cleaned() and remove the final STOP if needed")
 def make_path_regular(p):
     """
     If the ``codes`` attribute of `.Path` *p* is None, return a copy of *p*
@@ -495,6 +497,7 @@ def make_path_regular(p):
         return p
 
 
+@cbook.deprecated("3.2", alternative="Path.make_compound_path()")
 def concatenate_paths(paths):
     """Concatenate a list of paths into a single path."""
     vertices = np.concatenate([p.vertices for p in paths])
 
@@ -10,10 +10,9 @@
 import matplotlib as mpl
 from . import artist, cbook, colors, docstring, lines as mlines, transforms
 from .bezier import (
-    NonIntersectingPathException, concatenate_paths, get_cos_sin,
-    get_intersection, get_parallels, inside_circle, make_path_regular,
-    make_wedged_bezier2, split_bezier_intersecting_with_closedpath,
-    split_path_inout)
+    NonIntersectingPathException, get_cos_sin, get_intersection,
+    get_parallels, inside_circle, make_wedged_bezier2,
+    split_bezier_intersecting_with_closedpath, split_path_inout)
 from .path import Path
 
 
@@ -2873,8 +2872,6 @@ def __call__(self, path, mutation_size, linewidth,
             and takes care of the aspect ratio.
             """
 
-            path = make_path_regular(path)
-
             if aspect_ratio is not None:
                 # Squeeze the given height by the aspect_ratio
                 vertices = path.vertices / [1, aspect_ratio]
@@ -2886,10 +2883,9 @@ def __call__(self, path, mutation_size, linewidth,
                 if np.iterable(fillable):
                     path_list = []
                     for p in zip(path_mutated):
-                        v, c = p.vertices, p.codes
                         # Restore the height
-                        v[:, 1] = v[:, 1] * aspect_ratio
-                        path_list.append(Path(v, c))
+                        path_list.append(
+                            Path(p.vertices * [1, aspect_ratio], p.codes))
                     return path_list, fillable
                 else:
                     return path_mutated, fillable
@@ -4125,7 +4121,7 @@ def get_path(self):
         """
         _path, fillable = self.get_path_in_displaycoord()
         if np.iterable(fillable):
-            _path = concatenate_paths(_path)
+            _path = Path.make_compound_path(*_path)
         return self.get_transform().inverted().transform_path(_path)
 
     def get_path_in_displaycoord(self):
 
@@ -100,10 +100,7 @@ def test_clipping():
     exterior.vertices -= 2
     interior = mpath.Path.unit_circle().deepcopy()
     interior.vertices = interior.vertices[::-1]
-    clip_path = mpath.Path(vertices=np.concatenate([exterior.vertices,
-                                                    interior.vertices]),
-                           codes=np.concatenate([exterior.codes,
-                                                 interior.codes]))
+    clip_path = mpath.Path.make_compound_path(exterior, interior)
 
     star = mpath.Path.unit_regular_star(6).deepcopy()
     star.vertices *= 2.6