Update Release Note

RELEASE_NOTES.rst

@@ -21,6 +21,68 @@
 
 .. towncrier release notes start
 
+Airflow 2.4.2 (2022-10-23)
+--------------------------
+
+Significant Changes
+^^^^^^^^^^^^^^^^^^^
+
+Default for ``[webserver] expose_stacktrace`` changed to ``False`` (#27059)
+"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+  The default for ``[webserver] expose_stacktrace`` has been set to ``False``, instead of ``True``. This means administrators must opt-in to expose tracebacks to end users.
+
+Bug Fixes
+^^^^^^^^^
+- Make tracebacks opt-in (#27059)
+- Add missing AUTOINC/SERIAL for FAB tables (#26885)
+- Add separate error handler for 405(Method not allowed) errors (#26880)
+- Don't re-patch pods that are already controlled by current worker (#26778)
+- Handle mapped tasks in task duration chart (#26722)
+- Fix task duration cumulative chart (#26717)
+- Avoid 500 on dag redirect (#27064)
+- Filter dataset dependency data on webserver (#27046)
+- Remove double collection of dags in ``airflow dags reserialize``  (#27030)
+- Fix auto refresh for graph view (#26926)
+- Don't overwrite connection extra with invalid json (#27142)
+- Fix next run dataset modal links (#26897)
+- Change dag audit log sort by date from asc to desc (#26895)
+- Bump min version of jinja2 (#26866)
+- Add missing colors to ``state_color_mapping`` jinja global (#26822)
+- Fix running debuggers inside ``airflow tasks test`` (#26806)
+- Fix warning when using xcomarg dependencies (#26801)
+- demote Removed state in priority for displaying task summaries (#26789)
+- Ensure the log messages from operators during parsing go somewhere (#26779)
+- Add restarting state to TaskState Enum in REST API (#26776)
+- Allow retrieving error message from data.detail (#26762)
+- Simplify origin string cleaning (#27143)
+- Remove DAG parsing from StandardTaskRunner (#26750)
+- Fix non-hidden cumulative chart on duration view (#26716)
+- Remove TaskFail duplicates check (#26714)
+- Fix airflow tasks run --local when dags_folder differs from that of processor (#26509)
+- Fix yarn warning from d3-color (#27139)
+- Fix version for a couple configurations (#26491)
+- Revert "No grid auto-refresh for backfill dag runs (#25042)" (#26463)
+- Retry on Airflow Schedule DAG Run DB Deadlock (#26347)
+
+Misc/Internal
+^^^^^^^^^^^^^
+- Clean-ups around task-mapping code (#26879)
+- Move user-facing string to template (#26815)
+- add icon legend to datasets graph (#26781)
+- Bump ``sphinx`` and ``sphinx-autoapi`` (#26743)
+- Simplify ``RTIF.delete_old_records()`` (#26667)
+- Bump FAB to ``4.1.4`` (#26393)
+
+Doc only changes
+^^^^^^^^^^^^^^^^
+- Fixed triple quotes in task group example (#26829)
+- Documentation fixes (#26819)
+- make consistency on markup title string level (#26696)
+- Add a note against use of top level code in timetable (#26649)
+- Fix broken URL for ``docker-compose.yaml`` (#26726)
+
+
 Airflow 2.4.1 (2022-09-30)
 --------------------------