Update changelog

Author: NoahStapp

doc/changelog.rst

@@ -9,6 +9,9 @@ PyMongo 4.12 brings a number of changes including:
 - Support for configuring DEK cache lifetime via the ``key_expiration_ms`` argument to
   :class:`~pymongo.encryption_options.AutoEncryptionOpts`.
 - Support for $lookup in CSFLE and QE supported on MongoDB 8.1+.
+- Added index hinting support to the
+  :meth:`~pymongo.asynchronous.collection.AsyncCollection.distinct` and
+  :meth:`~pymongo.collection.Collection.distinct` commands.
 
 Issues Resolved
 ...............

pymongo/asynchronous/collection.py

@@ -3169,7 +3169,7 @@ async def distinct(
         if hint is not None:
             if not isinstance(hint, str):
                 hint = helpers_shared._index_document(hint)
-            cmd["hint"] = hint
+            cmd["hint"] = hint  # type: ignore[assignment]
 
         async def _cmd(
             session: Optional[AsyncClientSession],

pymongo/synchronous/collection.py

@@ -3162,7 +3162,7 @@ def distinct(
         if hint is not None:
             if not isinstance(hint, str):
                 hint = helpers_shared._index_document(hint)
-            cmd["hint"] = hint
+            cmd["hint"] = hint  # type: ignore[assignment]
 
         def _cmd(
             session: Optional[ClientSession],