diff -r 04a3ae7aba14 -r c86256bd4eb8 mercurial/interfaces/repository.py
--- a/mercurial/interfaces/repository.py	Wed Jan 29 13:39:50 2020 -0800
+++ b/mercurial/interfaces/repository.py	Wed Feb 05 15:01:22 2020 -0500
@@ -1071,14 +1071,6 @@
     as part of a larger interface.
     """
 
-    def new():
-        """Obtain a new manifest instance.
-
-        Returns an object conforming to the ``imanifestrevisionwritable``
-        interface. The instance will be associated with the same
-        ``imanifestlog`` collection as this instance.
-        """
-
     def copy():
         """Obtain a copy of this manifest instance.