Release 6.6.4

CHANGES.rst

@@ -14,6 +14,45 @@ Changelog
 
 .. towncrier release notes start
 
+6.6.4
+=====
+
+*(2025-08-11)*
+
+
+Bug fixes
+---------
+
+- Fixed ``MutliDict`` & ``CIMultiDict`` memory leak when deleting values or clearing them 
+  -- by :user:`Vizonex`
+
+  *Related issues and pull requests on GitHub:*
+  :issue:`1233`.
+
+
+Contributor-facing changes
+--------------------------
+
+- The type preciseness coverage report generated by `MyPy
+  <https://mypy-lang.org>`__ is now uploaded to `Coveralls
+  <https://coveralls.io/github/aio-libs/multidict>`__ and
+  will not be included in the `Codecov views
+  <https://app.codecov.io/gh/aio-libs/multidict>`__ going forward
+  -- by :user:`webknjaz`.
+
+  *Related issues and pull requests on GitHub:*
+  :issue:`1122`, :issue:`1231`.
+
+- Added memory leak test for popping or deleting attributes from a multidict to prevent future issues or bogus claims.
+  -- by :user:`Vizonex`
+
+  *Related issues and pull requests on GitHub:*
+  :issue:`1233`.
+
+
+----
+
+
 6.6.3
 =====
 

multidict/__init__.py

@@ -22,7 +22,7 @@
     "getversion",
 )
 
-__version__ = "6.6.3"
+__version__ = "6.6.4"
 
 
 if TYPE_CHECKING or not USE_EXTENSIONS: