Update changelog.

CHANGES.rst

@@ -1,3 +1,22 @@
+v4.4.0
+=======
+
+* #300: Restore compatibility in the result from
+  ``Distribution.entry_points`` (``EntryPoints``) to honor
+  expectations in older implementations and issuing
+  deprecation warnings for these cases:
+
+  - ``EntryPoints`` objects are once again mutable, allowing
+    for ``sort()`` and other list-based mutation operations.
+    Avoid deprecation warnings by casting to a
+    mutable sequence (e.g.
+    ``list(dist.entry_points).sort()``).
+
+  - ``EntryPoints`` results once again allow
+    for access by index. To avoid deprecation warnings,
+    cast the result to a Sequence first
+    (e.g. ``tuple(dist.entry_points)[0]``).
+
 v4.3.1
 =======