Update RELEASE_NOTES.rst

Author: ephraimbuddy

RELEASE_NOTES.rst

@@ -21,6 +21,70 @@
 
 .. towncrier release notes start
 
+Airflow 2.7.3 (2023-11-04)
+--------------------------
+
+Significant Changes
+^^^^^^^^^^^^^^^^^^^
+
+No significant changes.
+
+Bug Fixes
+"""""""""
+- Fix pre-mature evaluation of tasks in mapped task group (#34337)
+- Add TriggerRule missing value in rest API (#35194)
+- Fix Scheduler crash looping when dagrun creation fails (#35135)
+- Fix test connection with ``codemirror`` and extra (#35122)
+- Fix usage of cron-descriptor since BC in v1.3.0 (#34836)
+- Fix ``get_plugin_info`` for class based listeners. (#35022)
+- Some improvements/fixes for dag_run and task_instance endpoints (#34942)
+- Fix the dags count filter in webserver home page (#34944)
+- Return only the TIs of the readable dags when ~ is provided as a dag_id (#34939)
+- Fix triggerer thread crash in daemon mode (#34931)
+- Fix wrong plugin schema (#34858)
+- Use DAG timezone in TimeSensorAsync (#33406)
+- Mark tasks with ``all_skipped`` trigger rule as ``skipped`` if any task is in ``upstream_failed`` state (#34392)
+- Add read only validation to read only fields (#33413)
+
+Misc/Internal
+"""""""""""""
+- Improve testing harness to separate DB and non-DB tests (#35160, #35333)
+- Add pytest db_test markers to our tests (#35264)
+- Add pip caching for faster build (#35026)
+- Upper bound ``pendulum`` requirement to ``<3.0`` (#35336)
+- Limit ``sentry_sdk`` to ``1.33.0`` (#35298)
+- Fix subtle bug in mocking processor_agent in our tests (#35221)
+- Bump ``@babel/traverse`` from ``7.16.0 to 7.23.2`` in ``/airflow/www`` (#34988)
+- Bump ``undici`` from ``5.19.1 to 5.26.3`` in ``/airflow/www`` (#34971)
+- Remove unused set from ``SchedulerJobRunner`` (#34810)
+- Remove warning about ``max_tis per query > parallelism`` (#34742)
+- Improve modules import in Airflow core by moving some of them into a type-checking block (#33755)
+- Fix tests to respond to Python 3.12 handling of utcnow in sentry-sdk (#34946)
+- Add ``connexion<3.0`` upper bound (#35218)
+- Limit Airflow to ``< 3.12`` (#35123)
+- update moto version (#34938)
+- Limit WTForms to below ``3.1.0`` (#34943)
+
+Doc Only Changes
+""""""""""""""""
+- Fix variables substitution in Airflow Documentation (#34462)
+- Added example for defaults in ``conn.extras`` (#35165)
+- Update datasets.rst issue with running example code (#35035)
+- Remove ``mysql-connector-python`` from recommended MySQL driver (#34287)
+- Fix syntax error in task dependency ``set_downstream`` example (#35075)
+- Update documentation to enable test connection (#34905)
+- Update docs errors.rst - Mention sentry "transport" configuration option (#34912)
+- Update dags.rst to put SubDag deprecation note right after the SubDag section heading (#34925)
+- Add info on getting variables and config in custom secrets backend (#34834)
+- Document BaseExecutor interface in more detail to help users in writing custom executors (#34324)
+- Fix broken link to ``airflow_local_settings.py`` template (#34826)
+- Fixes python_callable function assignment context kwargs example in params.rst (#34759)
+- Add missing multiple_outputs=True param in the TaskFlow example (#34812)
+- Remove extraneous ``'>'`` in provider section name (#34813)
+- Fix imports in extra link documentation (#34547)
+
+
+
 Airflow 2.7.2 (2023-10-12)
 --------------------------