Apache Airflow 2.2.4

Bug Fixes

• Adding missing login provider related methods from Flask-Appbuilder (#21294)
• Fix slow DAG deletion due to missing dag_id index for job table (#20282)
• Add a session backend to store session data in the database (#21478)
• Show task status only for running dags or only for the last finished dag (#21352)
• Use compat data interval shim in log handlers (#21289)
• Fix mismatch in generated run_id and logical date of DAG run (#18707)
• Fix TriggerDagRunOperator extra link (#19410)
• Add possibility to create user in the Remote User mode (#19963)
• Avoid deadlock when rescheduling task (#21362)
• Fix the incorrect scheduling time for the first run of dag (#21011)
• Fix Scheduler crash when executing task instances of missing DAG (#20349)
• Deferred tasks does not cancel when DAG is marked fail (#20649)
• Removed duplicated dag_run join in Dag.get_task_instances() (#20591)
• Avoid unintentional data loss when deleting DAGs (#20758)
• Fix session usage in /rendered-k8s view (#21006)
• Fix airflow dags backfill --reset-dagruns errors when run twice (#21062)
• Do not set TaskInstance.max_tries in refresh_from_task (#21018)
• Don't require dag_id in body in dagrun REST API endpoint (#21024)
• Add Roles from Azure OAUTH Response in internal Security Manager (#20707)
• Allow Viewing DagRuns and TIs if a user has DAG "read" perms (#20663)
• Fix running airflow dags test <dag_id> <execution_dt> results in error when run twice (#21031)
• Switch to non-vendored latest connexion library (#20910)
• Bump flask-appbuilder to >=3.3.4 (#20628)
• upgrade celery to 5.2.3 (#19703)
• Bump croniter from <1.1 to <1.2 (#20489)
• Lift off upper bound for MarkupSafe (#20113)
• Avoid calling DAG.following_schedule() for TaskInstance.get_template_context() (#20486)
• Fix(standalone): Remove hardcoded Webserver port (#20429)
• Remove unnecssary logging in experimental API (#20356)
• Un-ignore DeprecationWarning (#20322)
• Deepcopying Kubernetes Secrets attributes causing issues (#20318)
• Fix(dag-dependencies): fix arrow styling (#20303)
• Adds retry on taskinstance retrieval lock (#20030)
• Correctly send timing metrics when using dogstatsd (fix schedule_delay metric) (#19973)
• Enhance multiple_outputs inference of dict typing (#19608)
• Fixing ses email backend (#18042)
• Pin Markupsafe until we are able to upgrade Flask/Jinja (#21664)

Doc only changes

• Added explaining concept of logical date in DAG run docs (#21433)
• Add note about Variable precedence with env vars (#21568)
• Update error docs to include before_send option (#21275)
• Augment xcom docs (#20755)
• Add documentation and release policy on "latest" constraints (#21093)
• Add a link to the DAG model in the Python API reference (#21060)
• Added an enum param example (#20841)
• Compare taskgroup and subdag (#20700)
• Add note about reserved params keyword (#20640)
• Improve documentation on Params (#20567)
• Fix typo in MySQL Database creation code (Set up DB docs) (#20102)
• Add requirements.txt description (#20048)
• Clean up default_args usage in docs (#19803)
• Add docker-compose explanation to conn localhost (#19076)
• Update CSV ingest code for tutorial (#18960)
• Adds Pendulum 1.x -> 2.x upgrade documentation (#18955)
• Updating explicit arg example in TaskFlow API tutorial doc (#18907)
• Adds back documentation about context usage in Python/@task (#18868)
• Clean up dynamic start_date values from docs (#19607)
• Docs for multiple pool slots (#20257)
• Update upgrading.rst with detailed code example of how to resolve post-upgrade warning (#19993)

Misc

• Deprecate some functions in the experimental API (#19931)
• Deprecate smart sensors (#20151)