Apache Airflow Helm Chart 1.4.0

New Features

• Add type to extra secrets param (#20599)
• Support elasticsearch connection scheme (#20564)
• Allows to disable built-in secret variables individually (#18974)
• Add support for securityContext (#18249)
• Add extra containers, volumes and volume mounts for jobs (#18808)
• Allow ingress multiple hostnames w/diff secrets (#18542)
• PgBouncer extra volumes, volume mounts, and sslmode (#19749)
• Allow specifying kerberos keytab (#19054)
• Allow disabling the Helm hooks (#18776, #20018)
• Add migration-wait-timeout (#20069)

Improvements

• Increase default livenessProbe timeout (#20698)
• Strict schema for k8s objects for values.yaml (#19181)
• Remove unnecessary pod_template_file defaults (#19690)
• Use built-in check-migrations command for Airflow>=2 (#19676)

Bug Fixes

• Fix precedence of affinity, nodeSelector, and tolerations (#20641)
• Fix chart elasticsearch default port 80 to 9200. (#20616)
• Fix network policy issue for webserver and flowerui (#20199)
• Use local definitions for k8s schema validation (#20544)
• Add custom labels for ingresses/PVCs (#20535)
• Fix extra secrets/configmaps labels (#20464)
• Fix flower restarts on update (#20316)
• Properly quote namespace names (#20266)

Doc only changes

• Add helm dependency update step to chart INSTALL (#20702)
• Reword section covering the envvar secrets (#20566)
• Add "Customizing Workers" page (#20331)
• Include Datadog example in production guide (#17996)
• Update production Helm guide database section to use k8s secret (#19892)
• Fix multiNamespaceMode docs to also cover KPO (#19879)
• Clarify Helm behaviour when it comes to loading default connections (#19708)

Misc

• Use 2.2.3 as default Airflow version (#20450)
• Add ArtifactHUB annotations for docs and screenshots (#20558)
• Add kubernetes 1.21 support (#19557)

Apache Airflow 2.2.3

Bug Fixes

• Lazy Jinja2 context (#20217)
• Exclude snowflake-sqlalchemy v1.2.5 (#20245)
• Move away from legacy importlib.resources API (#19091)
• Move setgid as the first command executed in forked task runner (#20040)
• Fix race condition when starting DagProcessorAgent (#19935)
• Limit httpx to <0.20.0 (#20218)
• Log provider import errors as debug warnings (#20172)
• Bump minimum required alembic version (#20153)
• Fix log link in gantt view (#20121)
• fixing #19028 by moving chown to use sudo (#20114)
• Lift off upper bound for MarkupSafe (#20113)
• Fix infinite recursion on redact log (#20039)
• Fix db downgrades (#19994)
• Context class handles deprecation (#19886)
• Fix possible reference to undeclared variable (#19933)
• Validate DagRun state is valid on assignment (#19898)
• Workaround occasional deadlocks with MSSQL (#19856)
• Enable task run setting to be able reinitialise (#19845)
• Fix log endpoint for same task (#19672)
• Cast macro datetime string inputs explicitly (#19592)
• Do not crash with stacktrace when task instance is missing (#19478)
• Fix log timezone in task log view (#19342) (#19401)
• Fix: Add taskgroup tooltip to graph view (#19083)
• Rename execution date in forms and tables (#19063)
• Simplify "invalid TI state" message (#19029)
• Handle case of nonexistent file when preparing file path queue (#18998)
• Do not create dagruns for DAGs with import errors (#19367)
• Fix field relabeling when switching between conn types (#19411)
• KubernetesExecutor should default to template image if used (#19484)
• Fix task instance api cannot list task instances with None state (#19487)
• Fix IntegrityError in DagFileProcessor.manage_slas (#19553)
• Declare data interval fields as serializable (#19616)
• Relax timetable class validation (#19878)
• Fix labels used to find queued KubernetesExecutor pods (#19904)
• Fix moved data migration check for MySQL when replcation is used (#19999)

Doc only changes

• Warn without tracebacks when example_dags are missing deps (#20295)
• Deferrable operators doc clarification (#20150)
• Ensure the example DAGs are all working (#19355)
• Updating core example DAGs to use TaskFlow API where applicable (#18562)
• Add xcom clearing behaviour on task retries (#19968)
• Add a short chapter focusing on adapting secret format for connections (#19859)
• Add information about supported OS-es for Apache Airflow (#19855)
• Update docs to reflect that changes to the base_log_folder require updating other configs (#19793)
• Disclaimer in KubernetesExecutor pod template docs (#19686)
• Add upgrade note on execution_date -> run_id (#19593)
• Expanding .output operator property information in TaskFlow tutorial doc (#19214)
• Add example SLA DAG (#19563)
• Add a proper example to patch DAG (#19465)
• Add DAG file processing description to Scheduler Concepts (#18954)
• Updating explicit arg example in TaskFlow API tutorial doc (#18907)
• Adds back documentation about context usage in Python/@task (#18868)
• Add release date for when an endpoint/field is added in the REST API (#19203)
• Better pod_template_file examples (#19691)
• Add decription on how you can customize image entrypoint (#18915)
• Dags-in-image pod template example should not have dag mounts (#19337)

Apache Airflow Helm Chart 1.3.0

New Features

• Chart: Add resources for cleanup and createuser jobs (#19263)
• Chart: Add labels to jobs created by cleanup pods (#19225)
• Add migration job resources (#19175)
• Allow custom pod annotations to all components (#18481)
• Chart: Make PgBouncer cmd/args configurable (#18910)
• Chart: Use python 3.7 by default; support disabling triggerer (#18920)

Improvements

• Chart: Increase default liveness probe timeout (#19003)
• Chart: Mount DAGs in triggerer (#18753)

Bug Fixes

• Allow Airflow UI to create worker pod via Clear > Run (#18272)
• Allow airflow standard images to run in openshift utilising the official helm chart #18136 (#18147)

Doc only changes

• Chart: Fix extraEnvFrom examples (#19144)
• Chart docs: Update webserver secret key reference configuration (#18595)
• Fix helm chart links in source install guide (#18588)

Misc

• Chart: Update default Airflow version to 2.2.1 (#19326)
• Modernize dockerfiles builds (#19327)
• Chart: Use strict k8s schemas for template validation (#19379)

Apache Airflow 2.2.2

Bug Fixes

• Fix bug when checking for existence of a Variable (#19395)
• Fix Serialization whenrelativedelta is passed as schedule_interval (#19418)
• Fix moving of dangling TaskInstance rows for SQL Server (#19425)
• Fix task instance modal in gantt view (#19258)
• Fix serialization of Params with set data type (#19267)
• Check if job object is None before calling .is_alive() (#19380)
• Task should fail immediately when pod is unprocessable (#19359)
• Fix downgrade for a DB Migration (#19390)
• Only mark SchedulerJobs as failed, not any jobs (#19375)
• Fix message on "Mark as" confirmation page (#19363)
• Bugfix: Check next run exists before reading data interval (#19307)
• Fix MySQL db migration with default encoding/collation (#19268)
• Fix hidden tooltip position (#19261)
• sqlite_default Connection has been hard-coded to /tmp, use gettempdir instead (#19255)
• Fix Toggle Wrap on DAG code page (#19211)
• Clarify "dag not found" error message in CLI (#19338)
• Add Note to SLA regarding schedule_interval (#19173)
• Use execution_date to check for existing DagRun for TriggerDagRunOperator (#18968)
• Add explicit session parameter in PoolSlotsAvailableDep (#18875)
• FAB still requires WTForms<3.0 (#19466)
• Fix missing dagruns when catchup=True (#19528)

Doc only changes

• Add missing parameter documentation for "timetable" (#19282)
• Improve Kubernetes Executor docs (#19339)
• Update image tag used in docker docs

Apache Airflow 2.2.1

Bug Fixes

• Fix Unexpected commit error in schedulerjob (#19213)
• Add DagRun.logical_date as a property (#19198)
• Clear ti.next_method and ti.next_kwargs on task finish (#19183)
• Faster PostgreSQL db migration to Airflow 2.2 (#19166)
• Remove incorrect type comment in Swagger2Specification._set_defaults classmethod (#19065)
• Add TriggererJob to jobs check command (#19179, #19185)
• Hide tooltip when next run is None (#19112)
• Crerate TI context with data interval compat layer (#19148)
• Fix queued dag runs changes catchup=False behaviour (#19130, #19145)
• add detailed information to logging when a dag or a task finishes. (#19097)
• Warn about unsupported Python 3.10 (#19060)
• Fix catchup by limiting queued dagrun creation using max_active_runs (#18897)
• Prevent scheduler crash when serialized dag is missing (#19113)
• Don't install SQLAlchemy/Pendulum adapters for other DBs (#18745)
• Workaround libstdcpp TLS error (#19010)
• Change ds, ts, etc. back to use logical date (#19088)
• Ensure task state doesn't change when marked as failed/success/skipped (#19095)
• Relax packaging requirement (#19087)
• Rename trigger page label to Logical Date (#19061)
• Allow Param to support a default value of None (#19034)
• Upgrade old DAG/task param format when deserializing from the DB (#18986)
• Don't bake ENV and _cmd into tmp config for non-sudo (#18772)
• CLI: Fail backfill command before loading DAGs if missing args (#18994)
• BugFix: Null execution date on insert to task_fail violating NOT NULL (#18979)
• Try to move "dangling" rows in upgradedb (#18953)
• Row lock TI query in SchedulerJob._process_executor_events (#18975)
• Sentry before send fallback (#18980)
• Fix XCom.delete error in Airflow 2.2.0 (#18956)
• Check python version before starting triggerer (#18926)

Doc only changes

• Update access control documentation for TaskInstances and DagRuns (#18644)
• Add information about keepalives for managed Postgres (#18850)
• Doc: Add Callbacks Section to Logging & Monitoring (#18842)
• Group PATCH DAGrun together with other DAGRun endpoints (#18885)

Apache Airflow 2.2.0

New Features

• AIP-39: Add (customizable) Timetable class to Airflow for richer scheduling behaviour (#15397, #16030,
  #16352, #17030, #17122, #17414, #17552, #17755, #17989, #18084, #18088, #18244, #18266, #18420, #18434,
  #18421, #18475, #18499, #18573, #18522, #18729, #18706, #18742, #18786, #18804)
• AIP-40: Add Deferrable "Async" Tasks (#15389, #17564, #17565, #17601, #17745, #17747, #17748, #17875,
  #17876, #18129, #18210, #18214, #18552, #18728, #18414)
• Add a Docker Taskflow decorator (#15330, #18739)
• Add Airflow Standalone command (#15826)
• Display alert messages on dashboard from local settings (#18284)
• Advanced Params using json-schema (#17100)
• Ability to test connections from UI or API (#15795, #18750)
• Add Next Run to UI (#17732)
• Add default weight rule configuration option (#18627)
• Add a calendar field to choose the execution date of the DAG when triggering it (#16141)
• Allow setting specific cwd for BashOperator (#17751)
• Show import errors in DAG views (#17818)
• Add pre/post execution hooks [Experimental] (#17576)
• Added table to view providers in Airflow ui under admin tab (#15385)
• Adds secrets backend/logging/auth information to provider yaml (#17625)
• Add date format filters to Jinja environment (#17451)
• Introduce RESTARTING state (#16681)
• Webserver: Unpause DAG on manual trigger (#16569)
• API endpoint to create new user (#16609)
• Add insert_args for support transfer replace (#15825)
• Add recursive flag to glob in filesystem sensor (#16894)
• Add conn to jinja template context (#16686)
• Add default_args for TaskGroup (#16557)
• Allow adding duplicate connections from UI (#15574)
• Allow specifying multiple URLs via the CORS config option (#17941)
• Implement API endpoint for DAG deletion (#17980)
• Add DAG run endpoint for marking a dagrun success or failed(#17839)
• Add support for kinit options [-f|-F] and [-a|-A] (#17816)
• Queue support for DaskExecutor using Dask Worker Resources (#16829, #18720)
• Make auto refresh interval configurable (#18107)

Improvements

• Small improvements for Airflow UI (#18715, #18795)
• Rename processor_poll_interval to scheduler_idle_sleep_time (#18704)
• Check the allowed values for the logging level (#18651)
• Fix error on triggering a dag that doesn't exist using dagrun_conf (#18655)
• Add muldelete action to TaskInstanceModelView (#18438)
• Avoid importing DAGs during clean DB installation (#18450)
• Require can_edit on DAG privileges to modify TaskInstances and DagRuns (#16634)
• Make Kubernetes job description fit on one log line (#18377)
• Always draw borders if task instance state is null or undefined (#18033)
• Inclusive Language (#18349)
• Improved log handling for zombie tasks (#18277)
• Adding Variable.update method and improving detection of variable key collisions (#18159)
• Add note about params on trigger DAG page (#18166)
• Change TaskInstance and TaskReschedule PK from execution_date to run_id (#17719)
• Adding TaskGroup support in BaseOperator.chain() (#17456)
• Advises the kernel to not cache log files generated by Airflow (#18054)
• Allow filtering DAGS by tags in the REST API (#18090)
• Optimize imports of Providers Manager (#18052)
• Adds capability of Warnings for incompatible community providers (#18020)
• Serialize the template_ext attribute to show it in UI (#17985)
• Add robots.txt and X-Robots-Tag header (#17946)
• Refactor BranchDayOfWeekOperator, DayOfWeekSensor (#17940)
• Update error message to guide the user into self-help mostly (#17929)
• Update to Celery 5 (#17397)
• Avoid redirect loop for users with no permissions (#17838)
• Improve graph view load time for dags with open groups (#17821)
• Add links to provider's documentation (#17736)
• Remove Marshmallow schema warnings (#17753)
• Rename none_failed_or_skipped by none_failed_min_one_success trigger rule (#17683)
• Remove [core] store_dag_code & use DB to get Dag Code (#16342)
• Rename task_concurrency to max_active_tis_per_dag (#17708)
• Import Hooks lazily individually in providers manager (#17682)
• Adding support for multiple task-ids in the external task sensor (#17339)
• Replace execution_date with run_id in airflow tasks run command (#16666)
• Avoid endless redirect loop when user has no roles (#17613)
• Make output from users cli command more consistent (#17642)
• Open relative extra links in place (#17477)
• Move worker_log_server_port option to the logging section (#17621)
• Use gunicorn to serve logs generated by worker (#17591)
• Improve validation of Group id (#17578)
• Simplify 404 page (#17501)
• Add XCom.clear so it's hookable in custom XCom backend (#17405)
• Add deprecation notice for SubDagOperator (#17488)
• Support DAGS folder being in different location on scheduler and runners (#16860)
• Remove /dagrun/create and disable edit form generated by F.A.B (#17376)
• Enable specifying dictionary paths in template_fields_renderers (#17321)
• error early if virtualenv is missing (#15788)
• Handle connection parameters added to Extra and custom fields (#17269)
• Fix airflow celery stop to accept the pid file. (#17278)
• Remove DAG refresh buttons (#17263)
• Deprecate dummy trigger rule in favor of always (#17144)
• Be verbose about failure to import airflow_local_settings (#17195)
• Include exit code in AirflowException str when BashOperator fails. (#17151)
• Adding EdgeModifier support for chain() (#17099)
• Only allows supported field types to be used in custom connections (#17194)
• Secrets backend failover (#16404)
• Warn on Webserver when using SQLite or SequentialExecutor (#17133)
• Extend init_containers defined in pod_override (#17537)
• Client-side filter dag dependencies (#16253)
• Improve executor validation in CLI (#17071)
• Prevent running airflow db init/upgrade migrations and setup in parallel. (#17078)
• Update chain() and cross_downstream() to support XComArgs (#16732)
• Improve graph view refresh (#16696)
• When a task instance fails with exception, log it (#16805)
• Set process title for serve-logs and LocalExecutor (#16644)
• Rename test_cycle to check_cycle (#16617)
• Set process title for Worker when using LocalExecutor (#16623)
• Add schema as DbApiHook instance attribute (#16521, #17423)
• Improve compatibility with MSSQL (#9973)
• Add transparency for unsupported connection type (#16220)
• Call resource based fab methods (#16190)
• Format more dates with timezone (#16129)
• Replace deprecated dag.sub_dag with dag.partial_subset (#16179)
• Treat AirflowSensorTimeout as immediate failure without retrying (#12058)
• Marking success/failed automatically clears failed downstream tasks (#13037)
• Add close/open indicator for import dag errors (#16073)
• Add collapsible import errors (#16072)
• Always return a response in TI's action_clear view (#15980)
• Add cli command to delete user by email (#15873)
• Use resource and action names for FAB permissions (#16410)
• Rename DAG concurrency ([core] dag_concurrency) settings for easier understanding (#16267, #18730)
• Calendar UI improvements (#16226)
• Refactor: SKIPPED should not be logged again as SUCCESS (#14822)
• Remove version limits for dnspython (#18046, #18162)
• Accept custom run ID in TriggerDagRunOperator (#18788)

Bug Fixes

• Make REST API patch user endpoint work the same way as the UI (#18757)
• Properly set start_date for cleared tasks (#18708)
• Ensure task_instance exists before running update on its state(REST API) (#18642)
• Make AirflowDateTimePickerWidget a required field (#18602)
• Retry deadlocked transactions on deleting old rendered task fields (#18616)
• Fix retry_exponential_backoff divide by zero error when retry delay is zero (#17003)
• Improve how UI handles datetimes (#18611, #18700)
• Bugfix: dag_bag.get_dag should return None, not raise exception (#18554)
• Only show the task modal if it is a valid instance (#18570)
• Fix accessing rendered {{ task.x }} attributes from within templates (#18516)
• Add missing email type of connection (#18502)
• Don't use flash for "same-page" UI messages. (#18462)
• Fix task group tooltip (#18406)
• Properly fix dagrun update state endpoint (#18370)
• Properly handle ti state difference between executor and scheduler (#17819)
• Fix stuck "queued" tasks in KubernetesExecutor (#18152)
• Don't permanently add zip DAGs to sys.path (#18384)
• Fix random deadlocks in MSSQL database (#18362)
• Deactivating DAGs which have been removed from files (#17121)
• When syncing dags to db remove dag_tag rows that are now unused (#8231)
• Graceful scheduler shutdown on error (#18092)
• Fix mini scheduler not respecting wait_for_downstream dep (#18338)
• Pass exception to run_finished_callback for Debug Executor (#17983)
• Make XCom.get_one return full, not abbreviated values (#18274)
• Use try/except when closing temporary file in task_runner (#18269)
• show next run if not none (#18273)
• Fix DB session handling in XCom.set (#18240)
• Sort adopted tasks in _check_for_stalled_adopted_tasks method (#18208)
• Fix external_executor_id not being set for manually run jobs (#17207)
• Fix deleting of zipped Dags in Serialized Dag Table (#18243)
• Return explicit error on user-add for duplicated email (#18224)
• Remove loading dots even when last run data is empty (#18230)
• Swap dag import error dropdown icons (#18207)
• Automatically create section when migrating config (#16814)
• Set encoding to utf-8 by default while reading task logs (#17965)
• Set task state to failed when pod is DELETED while running (#18095)
• Apply parent dag permissions to subdags (#1816...

Apache Airflow Helm Chart 1.2.0

New Features

• Add Triggerer to Helm Chart (#17743)
• Chart: warn when webserver secret key isn't set (#18306)
• add extraContainers for migrateDatabaseJob (#18379)
• Labels on job templates (#18403)
• Chart: Allow running and waiting for DB Migrations using default image (#18218)
• Chart: Make cleanup cronjob cmd/args configuable (#17970)
• Chart: configurable number of retention days for log groomers (#17764)
• Chart: Add loadBalancerSourceRanges in webserver and flower services (#17666)
• Chart: Support extraContainers in k8s workers (#17562)

Improvements

• Switch to latest version of PGBouncer-Exporter (#18429)
• Chart: Ability to access http k8s via multiple hostnames (#18257)
• Chart: Use stable API versions where available (#17211)
• Chart: Allow podTemplate to be templated (#17560)

Bug Fixes

• Chart: Fix applying labels on Triggerer (#18299)
• Fixes warm shutdown for celery worker. (#18068)
• Chart: Fix minor Triggerer issues (#18105)
• Chart: fix webserver secret key update (#18079)
• Chart: fix running with uid 0 (#17688)
• Chart: use serviceaccount template for log reader rolebinding (#17645)
• Chart: Fix elasticsearch-secret template port default function (#17428)
• KEDA task count query should ignore k8s queue (#17433)

Doc only changes

• Chart Doc: Delete extra space in adding connections doc (#18424)
• Improves installing from sources pages for all components (#18251)
• Chart docs: Format loadBalancerSourceRanges using code-block (#17763)
• Doc: Fix a broken link in an ssh-related warning message (#17294)
• Chart: Add instructions to Update Helm Repo before upgrade (#17282)
• Chart docs: better note for logs existing pvc permissions (#17177)

Misc

• Chart: Update the default Airflow version to 2.1.4 (#18354)

Apache Airflow 2.1.4

Bug Fixes

• Fix deprecation error message rather than silencing it (#18126)
• Limit the number of queued dagruns created by the Scheduler (#18065)
• Fix DagRun execution order from queued to running not being properly followed (#18061)
• Fix max_active_runs not allowing moving of queued dagruns to running (#17945)
• Avoid redirect loop for users with no permissions (#17838)
• Avoid endless redirect loop when user has no roles (#17613)
• Fix log links on graph TI modal (#17862)
• Hide variable import form if user lacks permission (#18000)
• Improve dag/task concurrency check (#17786)
• Fix Clear task instances endpoint resets all DAG runs bug (#17961)
• Fixes incorrect parameter passed to views (#18083) (#18085)
• Fix Sentry handler from LocalTaskJob causing error (#18119)
• Limit colorlog version (6.x is incompatible) (#18099)
• Only show Pause/Unpause tooltip on hover (#17957)
• Improve graph view load time for dags with open groups (#17821)
• Increase width for Run column (#17817)
• Fix wrong query on running tis (#17631)
• Add root to tree refresh url (#17633)
• Do not delete running DAG from the UI (#17630)
• Improve discoverability of Provider packages' functionality
• Do not let create_dagrun overwrite explicit run_id (#17728)
• BugFix: Regression on pid reset to allow task start after heartbeat (#17333)
• Set task state to failed when pod is DELETED while running (#18095)
• Advises the kernel to not cache log files generated by Airflow (#18054)
• Sort adopted tasks in _check_for_stalled_adopted_tasks method (#18208)
• Fix DagRunState enum query for MySQLdb driver (#17886)

Doc only changes

• Update version added fields in airflow/config_templates/config.yml (#18128)
• Improve the description of how to handle dynamic task generation (#17963)
• Improve cross-links to operators and hooks references (#17622)
• Doc: Fix replacing Airflow version for Docker stack (#17711)
• Make the providers operators/hooks reference much more usable (#17768)
• Update description about the new connection-types provider meta-data
• Suggest to use secrets backend for variable when it contains sensitive data (#17319)
• Improves quick-start docker-compose warnings and documentation (#18164)
• Separate Installing from sources section and add more details (#18171)
• Doc: Use closer.lua script for downloading sources (#18179)
• Doc: Improve installing from sources (#18194)
• Improves installing from sources pages for all components (#18251)

Apache Airflow 2.1.3

Bug Fixes

• 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` and task_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)

Apache Airflow Helm Chart 1.1.0

New Features

• Chart: Allow using krb5.conf with CeleryExecutor (#16822)
• Chart: Refactor webserver and flower networkpolicy (#16619)
• Chart: Apply worker's node assigning settings to Pod Template File (#16663)
• Chart: Support for overriding webserver and flower service ports (#16572)
• Chart: Support extraContainers and extraVolumes in flower (#16515)
• Chart: Allow configuration of pod resources in helm chart (#16425)
• Chart: Support job level annotations; fix jobs scheduling config (#16331)
• feat: Helm chart adding minReplicaCount to the Keda worker-kedaautoscaler.yaml (#16262)
• Chart: Adds support for custom command and args (#16153)
• Chart: Add extra ini config to pgbouncer (#16120)
• Chart: Add extraInitContainers to scheduler/webserver/workers (#16098)
• Configurable resources for git-sync sidecar (#16080)
• Chart: Template airflowLocalSettings and webserver.webserverConfig (#16074)
• Support strategy/updateStrategy on scheduler (#16069)
• Chart: Add both airflow and extra annotations to jobs (#16058)
• loadBalancerIP and annotations for both Flower and Webserver (#15972)

Improvements

• Chart: Update Postgres subchart to 10.5.3 (#17041)
• Chart: Update the default Airflow version to 2.1.2 (#17013)
• Update default image as 2.1.1 for Helm Chart (#16785)
• Chart: warn when using default logging with KubernetesExecutor (#16784)
• Drop support for Helm 2 (#16575)
• Chart: podAntiAffinity for scheduler, webserver, and workers (#16315)
• Chart: Update the default Airflow Version to 2.1.0 (#16273)
• Chart: Only mount DAGs in webserver when required (#16229)
• Chart: Remove git-sync: root and dest params (#15955)
• Chart: Add warning about missing knownHosts (#15950)

Bug Fixes

• Chart: Create a random secret for Webserver's flask secret key (#17142)
• Chart: fix labels on cleanup serviceaccount (#16722)
• Chart: Fix overriding node assigning settings on Worker Deployment (#16670)
• Chart: Always deploy a gitsync init container (#16339)
• Chart: Fix updating from KubernetesExecutor to CeleryExecutor (#16242)
• Chart: Adds labels to Kubernetes worker pods (#16203)
• Chart: Allow webserver.base_url to be templated (#16126)
• Chart: Fix PgBouncer exporter sidecar (#16099)
• Remove dags.gitSync.excludeWebserver from chart values.schema.json (#16070)
• Chart: Fix Elasticsearch secret created without Elasticsearch enabled (#16015)
• Handle special characters in password sfor Helm Chart (#16004)
• Fix flower serviceAccount created without flower enable (#16011)
• Chart: gitsync Clean Up for KubernetesExecutor (#15925)
• Mount DAGs read only when using gitsync (#15953)

Doc only changes

• Chart docs: note uid write permissions for existing pvc (#17170)
• Chart Docs: Add single-line description for multiNamespaceMode (#17147)
• Chart: Update description for Helm chart to include 'official' (#17040)
• Chart: Better comment and example for podTemplate (#16859)
• Chart: Add more clear docs for setting pod_template_file.yaml (#16632)
• Fix description on scheduler.livenessprobe.periodSeconds (#16486)
• Chart docs: Fix extrasecrets example (#16305)
• Small improvements for README.md files (#16244)

Misc

• Removes pylint from our toolchain (#16682)
• Update link to match what is in pre-commit (#16408)
• Chart: Update the appVersion to 2.1.0 in Chart.yaml (#16337)
• Rename the main branch of the Airflow repo to be main (#16149)
• Update Chart version to 1.1.0-rc1 (#16124)