Apache Airflow 2.5.0

New Features

• TaskRunner: notify of component start and finish (#27855)
• Add DagRun state change to the Listener plugin system(#27113)
• Metric for raw task return codes (#27155)
• Add logic for XComArg to pull specific map indexes (#27771)
• Clear TaskGroup (#26658, #28003)
• Add critical section query duration metric (#27700)
• Add: #23880 :: Audit log for AirflowModelViews(Variables/Connection) (#24079, #27994, #27923)
• Add postgres 15 support (#27444)
• Expand tasks in mapped group at run time (#27491)
• reset commits, clean submodules (#27560)
• scheduler_job, add metric for scheduler loop timer (#27605)
• Allow datasets to be used in taskflow (#27540)
• Add expanded_ti_count to ti context (#27680)
• Add user comment to task instance and dag run (#26457, #27849, #27867)
• Enable copying DagRun JSON to clipboard (#27639)
• Implement extra controls for SLAs (#27557)
• add dag parsed time in DAG view (#27573)
• Add max_wait for exponential_backoff in BaseSensor (#27597)
• Expand tasks in mapped group at parse time (#27158)
• Add disable retry flag on backfill (#23829)
• Adding sensor decorator (#22562)
• Api endpoint update ti (#26165)
• Filtering datasets by recent update events (#26942)
• Support Is /not Null filter for value is None on webui (#26584)
• Add search to datasets list (#26893)
• Split out and handle 'params' in mapped operator (#26100)
• Add authoring API for TaskGroup mapping (#26844)
• Add one_done trigger rule (#26146)
• Create a more efficient airflow dag test command that also has better local logging (#26400)
• Support add/remove permissions to roles commands (#26338)
• Auto tail file logs in Web UI (#26169)
• Add triggerer info to task instance in API (#26249)
• Flag to deserialize value on custom XCom backend (#26343)

Improvements

• Allow depth-first execution (#27827)
• UI: Update offset height if data changes (#27865)
• Improve TriggerRuleDep typing and readability (#27810)
• Make views requiring session, keyword only args (#27790)
• Optimize TI.xcom_pull() with explicit task_ids and map_indexes (#27699)
• Allow hyphens in pod id used by k8s executor (#27737)
• optimise task instances filtering (#27102)
• Use context managers to simplify log serve management (#27756)
• Fix formatting leftovers (#27750)
• Improve task deadlock messaging (#27734)
• Improve "sensor timeout" messaging (#27733)
• Replace urlparse with urlsplit (#27389)
• Align TaskGroup semantics to AbstractOperator (#27723)
• Add new files to parsing queue on every loop of dag processing (#27060)
• Make Kubernetes Executor & Scheduler resilient to error during PMH execution (#27611)
• Separate dataset deps into individual graphs (#27356)
• Use log.exception where more economical than log.error (#27517)
• Move validation branch_task_ids into SkipMixin (#27434)
• Coerce LazyXComAccess to list when pushed to XCom (#27251)
• Update cluster-policies.rst docs (#27362)
• Add warning if connection type already registered within the provider (#27520)
• Activate debug logging in commands with --verbose option (#27447)
• Add classic examples for Python Operators (#27403)
• change .first() to .scalar() (#27323)
• Improve reset_dag_run description (#26755)
• Add examples and howtos about sensors (#27333)
• Make grid view widths adjustable (#27273)
• Sorting plugins custom menu links by category before name (#27152)
• Simplify DagRun.verify_integrity (#26894)
• Add mapped task group info to serialization (#27027)
• Correct the JSON style used for Run config in Grid View (#27119)
• No extra__conn_type__ prefix required for UI behaviors (#26995)
• Improve dataset update blurb (#26878)
• Rename kubernetes config section to kubernetes_executor (#26873)
• decode params for dataset searches (#26941)
• Get rid of the DAGRun details page & rely completely on Grid (#26837)
• Fix scheduler crashloopbackoff when using hostname_callable (#24999)
• Reduce log verbosity in KubernetesExecutor. (#26582)
• Don't iterate tis list twice for no reason (#26740)
• Clearer code for PodGenerator.deserialize_model_file (#26641)
• Don't import kubernetes unless you have a V1Pod (#26496)
• Add updated_at column to DagRun and Ti tables (#26252)
• Move the deserialization of custom XCom Backend to 2.4.0 (#26392)
• Avoid calculating all elements when one item is needed (#26377)
• Add __future__.annotations automatically by isort (#26383)
• Handle list when serializing expand_kwargs (#26369)
• Apply PEP-563 (Postponed Evaluation of Annotations) to core airflow (#26290)
• Add more weekday operator and sensor examples #26071 (#26098)
• Align TaskGroup semantics to AbstractOperator (#27723)

Bug Fixes

• Gracefully handle whole config sections being renamed (#28008)
• Add allow list for imports during deserialization (#27887)
• Soft delete datasets that are no longer referenced in DAG schedules or task outlets (#27828)
• Redirect to home view when there are no valid tags in the URL (#25715)
• Refresh next run datasets info in dags view (#27839)
• Make MappedTaskGroup depend on its expand inputs (#27876)
• Make DagRun state updates for paused DAGs faster (#27725)
• Don't explicitly set include_examples to False on task run command (#27813)
• Fix menu border color (#27789)
• Fix backfill queued task getting reset to scheduled state. (#23720)
• Fix clearing child dag mapped tasks from parent dag (#27501)
• Handle json encoding of V1Pod in task callback (#27609)
• Fix ExternalTaskSensor can't check zipped dag (#27056)
• Avoid re-fetching DAG run in TriggerDagRunOperator (#27635)
• Continue on exception when retrieving metadata (#27665)
• External task sensor fail fix (#27190)
• Add the default None when pop actions (#27537)
• Display parameter values from serialized dag in trigger dag view. (#27482, #27944)
• Move TriggerDagRun conf check to execute (#27035)
• Resolve trigger assignment race condition (#27072)
• Update google_analytics.html (#27226)
• Fix some bug in web ui dags list page (auto-refresh & jump search null state) (#27141)
• Fixed broken URL for docker-compose.yaml (#26721)
• Fix xcom arg.py .zip bug (#26636)
• Fix 404 taskInstance errors and split into two tables (#26575)
• Fix browser warning of improper thread usage (#26551)
• template rendering issue fix (#26390)
• Clear autoregistered DAGs if there are any import errors (#26398)
• Fix from airflow import version lazy import (#26239)
• allow scroll in triggered dag runs modal (#27965)

Misc/Internal

• Remove is_mapped attribute (#27881)
• Simplify FAB table resetting (#27869)
• Fix old-style typing in Base Sensor (#27871)
• Switch (back) to late imports (#27730)
• Completed D400 for multiple folders (#27748)
• simplify notes accordion test (#27757)
• completed D400 for airflow/callbacks/* airflow/cli/* (#27721)
• Completed D400 for airflow/api_connexion/* directory (#27718)
• Completed D400 for airflow/listener/* directory (#27731)
• Completed D400 for airflow/lineage/* directory (#27732)
• Update API & Python Client versions (#27642)
• Completed D400 & D401 for airflow/api/* directory (#27716)
• Completed D400 for multiple folders (#27722)
• Bump minimatch from 3.0.4 to 3.0.8 in /airflow/www (#27688)
• Bump loader-utils from 1.4.1 to 1.4.2 in /airflow/www (#27697)
• Disable nested task mapping for now (#27681)
• bump alembic minimum version (#27629)
• remove unused code.html (#27585)
• Enable python string normalization everywhere (#27588)
• Upgrade dependencies in order to avoid backtracking (#27531)
• Strengthen a bit and clarify importance of triaging issues (#27262)
• Deduplicate type hints (#27508)
• Add stub 'yield' to BaseTrigger.run (#27416)
• Remove upper-bound limit to dask (#27415)
• Limit Dask to under 2022.10.1 (#27383)
• Update old style typing (#26872)
• Enable string normalization for docs (#27269)
• Slightly faster up/downgrade tests (#26939)
• Deprecate use of core get_kube_client in PodManager (#26848)
• Add memray files to gitignore / dockerignore (#27001)
• Bump sphinx and sphinx-autoapi (#26743)
• Simplify RTIF.delete_old_records() (#26667)
• migrate last react files to typescript (#26112)
• Work around pyupgrade edge cases (#26384)

Doc only changes

• Document dag_file_processor_timeouts metric as deprecated (#27067)
• Drop support for PostgreSQL 10 (#27594)
• Update index.rst (#27529)
• Add note about pushing the lazy XCom proxy to XCom (#27250)
• Fix BaseOperator link (#27441)
• [docs] best-practices add use variable with template example. (#27316)
• docs for custom view using plugin (#27244)
• Update graph view and grid view on overview page (#26909)
• Documentation fixes (#26819)
• make consistency on markup title string level (#26696)
• Add documentation to dag test function (#26713)
• Fix broken URL for docker-compose.yaml (#26726)
• Add a note against use of top level code in timetable (#26649)
• Fix example_datasets dag names (#26495)
• Update docs: zip-like effect is now possible in task mapping (#26435)
• changing to task decorator in docs from classic operator use (#25711)