Fix task retries when they receive sigkill and have retries and properly handle sigterm (#16301)
Fix redacting secrets in context exceptions. (#17618)
Fix race condition with dagrun callbacks (#16741)
Add 'queued' to DagRunState (#16854)
Add 'queued' state to DagRun (#16401)
Fix external elasticsearch logs link (#16357)
Add proper warning message when recorded PID is different from current PID (#17411)
Fix running tasks with default_impersonation config (#17229)
Rescue if a DagRun's DAG was removed from db (#17544)
Fixed broken json_client (#17529)
Handle and log exceptions raised during task callback (#17347)
Fix CLI kubernetes cleanup-pods which fails on invalid label key (#17298)
Show serialization exceptions in DAG parsing log (#17277)
Fix: TaskInstance does not show queued_by_job_id & external_executor_id (#17179)
Adds more explanatory message when SecretsMasker is not configured (#17101)
Enable the use of __init_subclass__ in subclasses of BaseOperator (#17027)
Fix task instance retrieval in XCom view (#16923)
Validate type of priority_weight during parsing (#16765)
Correctly handle custom deps` andtask_group`` during DAG Serialization (#16734)
Fix slow (cleared) tasks being be adopted by Celery worker. (#16718)
Fix calculating duration in tree view (#16695)
Fix AttributeError: datetime.timezone object has no attribute name (#16599)
Redact conn secrets in webserver logs (#16579)
Change graph focus to top of view instead of center (#16484)
Fail tasks in scheduler when executor reports they failed (#15929)
fix(smart_sensor): Unbound variable errors (#14774)
Add back missing permissions to UserModelView controls. (#17431)
Better diagnostics and self-healing of docker-compose (#17484)
Improve diagnostics message when users have secret_key mis-configured (#17410)
Stop checking execution_date in task_instance.refresh_from_db (#16809)

Improvements

Run mini scheduler in LocalTaskJob during task exit (#16289)
Remove SQLAlchemy<1.4 constraint (#16630)
Bump Jinja2 upper-bound from 2.12.0 to 4.0.0 (#16595)
Bump dnspython (#16698)
Updates to FlaskAppBuilder 3.3.2+ (#17208)
Add State types for tasks and DAGs (#15285)
Set Process title for Worker when using LocalExecutor (#16623)
Move DagFileProcessor and DagFileProcessorProcess out of scheduler_job.py (#16581)

Doc-only changes

Fix inconsistencies in configuration docs (#17317)
Fix docs link for using SQLite as Metadata DB (#17308)

Misc

Switch back http provider after requests removes LGPL dependency (#16974)