Prepare release 4.12.1 (#418)

Author: JelleZijlstra

CHANGELOG.md

@@ -1,10 +1,10 @@
-# Unreleased
+# Release 4.12.1 (June 1, 2024)
 
 - Preliminary changes for compatibility with the draft implementation
-  of PEP 649 in Python 3.14.
+  of PEP 649 in Python 3.14. Patch by Jelle Zijlstra.
 - Fix regression in v4.12.0 where nested `Annotated` types would cause
   `TypeError` to be raised if the nested `Annotated` type had unhashable
-  metadata.
+  metadata. Patch by Alex Waygood.
 
 # Release 4.12.0 (May 23, 2024)
 

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "flit_core.buildapi"
 # Project metadata
 [project]
 name = "typing_extensions"
-version = "4.12.0"
+version = "4.12.1"
 description = "Backported and Experimental Type Hints for Python 3.8+"
 readme = "README.md"
 requires-python = ">=3.8"