updated changelog for upcoming 0.19.0

docs/changelog.rst

@@ -6,8 +6,9 @@ Changelog
 Development
 ===========
 - (Fill this out as you fix issues and develop your features).
-- Documentation improvements:
-    - Documented how `pymongo.monitoring` can be used to log all queries issued by MongoEngine to the driver.
+
+Changes in 0.19.0
+=================
 - BREAKING CHANGE: ``class_check`` and ``read_preference`` keyword arguments are no longer available when filtering a ``QuerySet``. #2112
     - Instead of ``Doc.objects(foo=bar, read_preference=...)`` use ``Doc.objects(foo=bar).read_preference(...)``.
     - Instead of ``Doc.objects(foo=bar, class_check=False)`` use ``Doc.objects(foo=bar).clear_cls_query(...)``.
@@ -21,14 +22,16 @@ Development
 - DEPRECATION: ``Q.empty`` & ``QNode.empty`` are marked as deprecated and will be removed in a next version of MongoEngine. #2210
     - Added ability to check if Q or QNode are empty by parsing them to bool.
     - Instead of ``Q(name="John").empty`` use ``not Q(name="John")``.
-- Improve error message related to InvalidDocumentError #2180
 - Fix updating/modifying/deleting/reloading a document that's sharded by a field with ``db_field`` specified. #2125
 - ``ListField`` now accepts an optional ``max_length`` parameter. #2110
-- Switch from nosetest to pytest as test runner #2114
-- The codebase is now formatted using ``black``. #2109
-- In bulk write insert, the detailed error message would raise in exception.
+- Improve error message related to InvalidDocumentError #2180
+- Added BulkWriteError to replace NotUniqueError which was misleading in bulk write insert #2152
 - Added ability to compare Q and Q operations #2204
 - Added ability to use a db alias on query_counter #2194
+- Switch from nosetest to pytest as test runner #2114
+- The codebase is now formatted using ``black``. #2109
+- Documentation improvements:
+    - Documented how `pymongo.monitoring` can be used to log all queries issued by MongoEngine to the driver.
 
 Changes in 0.18.2
 =================