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* Add ExternalDeploymentSensor (1472)
* Deprecate the following operators and sensors and proxy them to their upstream Apache Airflow providers' deferrable counterparts
* EmrContainerSensorAsync
* EmrStepSensorAsync
* EmrJobFlowSensorAsync
* RedshiftClusterSensorAsync
* BatchSensorAsync
* S3KeySensorAsync
* S3KeysUnchangedSensorAsync
* EmrContainerOperatorAsync
* RedshiftDeleteClusterOperatorAsync
* RedshiftResumeClusterOperatorAsync
* RedshiftPauseClusterOperatorAsync
* BatchOperatorAsync
* SageMakerProcessingOperatorAsync
* SageMakerTransformOperatorAsync
* SageMakerTrainingOperatorAsync
* RedshiftDataOperatorAsync
* GCSObjectExistenceSensorAsync
* GCSObjectsWithPrefixExistenceSensorAsync
* GCSUploadSessionCompleteSensorAsync
* GCSObjectUpdateSensorAsync
* GKEStartPodOperatorAsync
* BigQueryInsertJobOperatorAsync
* BigQueryCheckOperatorAsync
* BigQueryGetDataOperatorAsync
* BigQueryIntervalCheckOperatorAsync
* BigQueryValueCheckOperatorAsync
* DataprocCreateClusterOperatorAsync
* DataprocDeleteClusterOperatorAsync
* DataprocSubmitJobOperatorAsync
* DataprocUpdateClusterOperatorAsync
* BigQueryTableExistenceSensorAsync
* AzureDataFactoryPipelineRunStatusSensorAsync
* WasbBlobSensorAsync
* WasbPrefixSensorAsync
* AzureDataFactoryRunPipelineOperatorAsync
* FileSensorAsync
* ExternalTaskSensorAsync
* SnowflakeSqlApiOperatorAsync
* DatabricksSubmitRunOperatorAsync
* DatabricksRunNowOperatorAsync
* KubernetesPodOperatorAsync
* SFTPSensorAsync
* HttpSensorAsync
* DbtCloudJobRunSensorAsync
* DbtCloudRunJobOperatorAsync
* LivyOperatorAsync
* Add deprecation notice docs for astronomer-providers (1468)
* Increase min airflow version to 2.6 (1438)
* Bump mininium python to 3.8 (1442)