prepare release 4.0.1 (#974)

Author: JelleZijlstra

typing_extensions/CHANGELOG

@@ -1,8 +1,10 @@
-# Unreleased
+# Release 4.0.1 (November 30, 2021)
 
 - Fix broken sdist in release 4.0.0. Patch by Adam Turner (@AA-Turner).
 - Fix equality comparison for `Required` and `NotRequired`. Patch by
   Jelle Zijlstra (@jellezijlstra).
+- Fix usage of `Self` as a type argument. Patch by Chris Wesseling
+  (@CharString) and James Hilton-Balfe (@Gobot1234).
 
 # Release 4.0.0 (November 14, 2021)
 

typing_extensions/pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "flit_core.buildapi"
 # Project metadata
 [project]
 name = "typing_extensions"
-version = "4.0.0"
+version = "4.0.1"
 description = "Backported and Experimental Type Hints for Python 3.6+"
 readme.text = """\
 Typing Extensions -- Backported and Experimental Type Hints for Python