1.9.9 (core) / 0.25.9 (libraries)

New

• Added a new function load_definitions_from_module, which can load all the assets, checks, schedules, sensors, and job objects within a module scope into a single Definitions object. Check out the documentation to learn more.
• When using the DAGSTER_REDACT_USER_CODE_ERRORS environment variable to mask user code errors, the unmasked log lines are now written using a dagster.masked Python logger instead of being written to stderr, allowing the format of those log lines to be customized.
• The croniter package is now vendored in dagster.
• [ui] Corrected the minstral typo and updated the Mistral logo for asset kinds tag.
• [ui] The relevant runs are now shown within the same dialog when viewing details of an automation evaluation.
• [ui] Clicking to view runs with a specific status from the backfill overview now switches to the new backfill runs tab with your filters applied, instead of the global runs page.
• [ui] In the run timeline, all run ids and timings are now shown in the hover popover.
• [ui] Added a new tab on the Runs page that shows a filterable list of recent backfills.
• [dagster-airlift] Added support for Python 3.7.
• [dagster-aws] Added a task_definition_prefix argument to EcsRunLauncher, allowing the name of the task definition families for launched runs to be customized. Previously, the task definition families always started with run.
• [dagster-azure] Moved azure fake implementations to its own submodule, paving the way for fake implementations to not be imported by default. (Thanks @futurwasfree!)
• [dagster-dlt] The dagster-dlt library is added. It replaces the dlt module of dagster-embedded-elt.
• [dagster-sling] The dagster-sling library is added. It replaces the Sling module of dagster-embedded-elt.
• [helm] Added support for sidecar containers for all Dagster pods, for versions of K8s after 1.29 (Native Sidecars). (Thanks @hom3r!)

Bugfixes

• Fixed an issue where the tick timeline wouldn't load for an automation condition sensor that emitted a backfill.
• Fixed a bug with asset checks where additional_deps/additional_ins were not being threaded through properly in certain cases, and would result in errors at job creation.
• Fixed a bug where the UI will hit an unexpected error when loading details for a run containing a step retry before the step has started.
• Fixed a bug with load_assets_from_x functions where we began erroring when a spec and AssetsDefinition had the same key in a given module. We now only error in this case if include_specs=True.
• Fixed a bug with load_assets_from_modules where AssetSpec objects were being given the key_prefix instead of the source_key_prefix. Going forward, when load_specs is set to True, only the source_key_prefix will affect AssetSpec objects.
• Fixed a bug with the run queue criteria UI for branch deployments in Dagster Plus.
• [ui] Fixed the "View evaluation" links from the "Automation condition" tag popover on Runs.
• [dagster-aws] Fixed an issue with the EcsRunLauncher where it would sometimes create a new task definition revision for each run if the "task_role_arn" or "execution_role_arn" parameters were specified without the arn:aws:iam: prefix.
• [dagster-aws] Fixed a bug with PipesEMRServerlessClient trying to get the dashboard URL for a run before it transitions to RUNNING state.
• [dagster-dbt] Fixed an issue where group names set on partitioned dbt assets created using the @dbt_assets decorator would be ignored.
• [dagster-azure] Fixed the default configuration for the show_url_only parameter on the AzureBlobComputeLogManager. (Thanks @ion-elgreco!)
• [dagster-aws] Fixed an issue handling null networkConfiguration parameters for the ECS run launcher. (Thanks @markgrin!)

Documentation

• Added example potential use cases for sensors. (Thanks @gianfrancodemarco!)
• Updated the tutorial to match the outlined structure. (Thanks @vincent0426!)

Deprecations

• [dagster-embedded-elt] the dagster-embedded-elt library is deprecated in favor of dagster-dlt and dagster-sling.

Dagster Plus

• The Alert Policies page will now show a warning if a slack channel for a policy no longer exists.

1.9.8 (core) / 0.25.8 (libraries)

Bugfixes

• Fixed a bug with load_assets_from_x functions where we began erroring when a spec and AssetsDefinition had the same key in a given module. We now only error in this case if include_specs=True.
• [dagster-azure] Fixed a bug in 1.9.6 and 1.9.7 where the default behavior of the compute log manager switched from showing logs in the UI to showing a URL. You can toggle the show_url_only option to True to enable the URL showing behavior.
• [dagster-dbt] Fixed an issue where group names set on partitioned dbt assets created using the @dbt_assets decorator would be ignored

1.9.7 (core) / 0.25.7 (libraries)

New

• Added new function load_definitions_from_module, which can load all the assets, checks, schedules, sensors, and job objects within a module scope into a single Definitions object. Check out the documentation to learn more: https://docs.dagster.io/_apidocs/definitions#dagster.load_definitions_from_module.
• Previously, asset backfills could only target selections of assets in which all assets had a BackfillPolicy, or none of them did. Mixed selections are now supported.
• AssetSpecs may now contain a partitions_def. Different AssetSpecs passed to the same invocation of @multi_asset can now have different PartitionsDefinitions, as long as can_subset=True.
• Added the option to use a thread pool to process backfills in parallel.
• Exceptions that are raised when a schedule or sensor is writing to logs will now write an error message to stdout instead of failing the tick.
• Added validation of title for asset backfills (not just for job backfills).
• [ui] Design tweaks to the asset Automations tab.
• [ui] Asset selection filtering is now case insensitive.
• [ui] Add Teradata icon for kind tags.
• [ui] When creating and editing alerts, when the form is in an invalid state, display the reason on the disabled buttons.
• [ui] Add Automation history to asset checks.
• [ui] Improve performance of Run page for very long-running runs.
• [dagster-airbyte] The airbyte_assets decorator has been added. It can be used with the AirbyteCloudWorkspace resource and DagsterAirbyteTranslator translator to load Airbyte tables for a given connection as assets in Dagster. The build_airbyte_assets_definitions factory can be used to create assets for all the connections in your Airbyte workspace.
• [dagster-airbyte] Airbyte Cloud assets can now be materialized using the AirbyteCloudWorkspace.sync_and_poll(…) method in the definition of a @airbyte_assets decorator.
• [dagster-airlift] Airflow imports are now compatible with Airflow 1.
• [dagster-aws] new ecs_executor which executes Dagster steps via AWS ECS tasks. This can be used in conjunction with ECSRunLauncher.
• [dagster-dbt] dbt-core>=1.9 is now supported.
• [dagster-dbt] Adds SQL syntax highlighting to raw sql code in dbt asset descriptions.
• [dagster-looker] load_looker_asset_specs and build_looker_pdt_assets_definitions are updated to accept an instance of DagsterLookerApiTranslator or custom subclass.
• [dagster-looker] Type hints in the signature of DagsterLookerApiTranslator.get_asset_spec have been updated - the parameter looker_structure is now of type LookerApiTranslatorStructureData instead of LookerStructureData. Custom Looker API translators should be updated.
• [dagster-powerbi] load_powerbi_asset_specs has been updated to accept an instance of DagsterPowerBITranslator or custom subclass.
• [dagster-powerbi] Type hints in the signature of DagsterPowerBITranslator.get_asset_spec have been updated - the parameter data is now of type PowerBITranslatorData instead of PowerBIContentData. Custom Power BI translators should be updated.
• [dagster-sigma] load_sigma_asset_specs has been updated to accept an instance of DagsterSigmaTranslator or a custom subclass.
• [dagster-sigma] Type hints in the signature of DagsterLookerApiTranslator.get_asset_spec have been updated - the parameter data is now of type Union[SigmaDatasetTranslatorData, SigmaWorkbookTranslatorData] instead of Union[SigmaDataset, SigmaWorkbook]. Custom Looker API translators should be updated.
• [dagster-sigma] Added the option to filter to specific workbooks in addition to folders.
• [dagster-sigma] Added the option to skip fetching lineage for workbooks in cases where users want to build this information themselves.
• [dagster-tableau] load_tableau_asset_specs has been updated to accept an instance of DagsterTableauTranslator or custom subclass.
• [dagster-tableau] Type hints in the signature of DagsterTableauTranslator.get_asset_spec have been updated - the parameter data is now of type TableauTranslatorData instead of TableauContentData. Custom Tableau translators should be updated.

Bugfixes

• Fixed an issue where sensor and schedule tick logs would accumulate disk over time on Dagster code servers.
• [ui] Fixed an issue where the app sometimes loads with styles missing.
• [ui] Fix search string highlighting in global search results.
• Fixed a race condition where immediately after adding a new asset to the graph, a freshness check sensor targeting that asset might raise an InvalidSubsetError in its first one.
• [ui] Fixed a bug where backfills launched by Declarative Automation were not being shown in the table of launched runs.
• The dagster-airlift package erroneously introduced a dependency on dagster. This has been rectified - dagster is only required for the dagster-airlift[core] submodule.

Deprecations

• Deprecation of @multi_asset_sensor has been rolled back.

Dagster Plus

• Introduce the Catalog Viewer role for Users and Teams.
• Slack, MS Teams, and email alerts for run failures will list the steps that were successful or not executed.
• [experimental] The option blobStorageSnapshotUploads has been added which enables a new process for how definition snapshots are uploaded to Dagster Cloud.
• Fixed a catalog search issue where exact prefix matches are not prioritized in the search results.
• Fixed a bug with Insights metric customization.

1.9.6 (core) / 0.25.6 (libraries)

New

• Updated cronitor pin to allow versions >= 5.0.1 to enable use of DayOfWeek as 7. Cronitor 4.0.0 is still disallowed. (Thanks, @joshuataylor!)
• Added flag checkDbReadyInitContainer to optionally disable db check initContainer.
• Added job name filtering to increase the throughput for run status sensors that target jobs.
• [ui] Added Google Drive icon for kind tags. (Thanks, @dragos-pop!)
• [ui] Renamed the run lineage sidebar on the Run details page to Re-executions.
• [ui] Sensors and schedules that appear in the Runs page are now clickable.
• [ui] Runs targeting assets now show more of the assets in the Runs page.
• [dagster-airbyte] The destination type for an Airbyte asset is now added as a kind tag for display in the UI.
• [dagster-gcp] DataprocResource now receives an optional parameter labels to be attached to Dataproc clusters. (Thanks, @thiagoazcampos!)
• [dagster-k8s] Added a checkDbReadyInitContainer flag to the Dagster Helm chart to allow disabling the default init container behavior. (Thanks, @easontm!)
• [dagster-k8s] K8s pod logs are now logged when a pod fails. (Thanks, @apetryla!)
• [dagster-sigma] Introduced build_materialize_workbook_assets_definition which can be used to build assets that run materialize schedules for a Sigma workbook.
• [dagster-snowflake] SnowflakeResource and SnowflakeIOManager both accept additional_snowflake_connection_args config. This dictionary of arguments will be passed to the snowflake.connector.connect method. This config will be ignored if you are using the sqlalchemy connector.
• [helm] Added the ability to set user-deployments labels on k8s deployments as well as pods.

Bugfixes

• Assets with self dependencies and BackfillPolicy are now evaluated correctly during backfills. Self dependent assets no longer result in serial partition submissions or disregarded upstream dependencies.
• Previously, the freshness check sensor would not re-evaluate freshness checks if an in-flight run was planning on evaluating that check. Now, the freshness check sensor will kick off an independent run of the check, even if there's already an in flight run, as long as the freshness check can potentially fail.
• Previously, if the freshness check was in a failing state, the sensor would wait for a run to update the freshness check before re-evaluating. Now, if there's a materialization later than the last evaluation of the freshness check and no planned evaluation, we will re-evaluate the freshness check automatically.
• [ui] Fixed run log streaming for runs with a large volume of logs.
• [ui] Fixed a bug in the Backfill Preview where a loading spinner would spin forever if an asset had no valid partitions targeted by the backfill.
• [dagster-aws] PipesCloudWatchMessageReader correctly identifies streams which are not ready yet and doesn't fail on ThrottlingException. (Thanks, @jenkoian!)
• [dagster-fivetran] Column metadata can now be fetched for Fivetran assets using FivetranWorkspace.sync_and_poll(...).fetch_column_metadata().
• [dagster-k8s] The k8s client now waits for the main container to be ready instead of only waiting for sidecar init containers. (Thanks, @OrenLederman!)

Documentation

• Fixed a typo in the dlt_assets API docs. (Thanks, @zilto!)

1.9.5 (core) / 0.25.5 (libraries)

New

• The automatic run retry daemon has been updated so that there is a single source of truth for if a run will be retried and if the retry has been launched. Tags are now added to run at failure time indicating if the run will be retried by the automatic retry system. Once the automatic retry has been launched, the run ID of the retry is added to the original run.
• When canceling a backfill of a job, the backfill daemon will now cancel all runs launched by that backfill before marking the backfill as canceled.
• Dagster execution info (tags such as dagster/run-id, dagster/code-location, dagster/user and Dagster Cloud environment variables) typically attached to external resources are now available under DagsterRun.dagster_execution_info.
• SensorReturnTypesUnion is now exported for typing the output of sensor functions.
• [dagster-dbt] dbt seeds now get a valid code version (Thanks @marijncv!).
• Manual and automatic retries of runs launched by backfills that occur while the backfill is still in progress are now incorporated into the backfill's status.
• Manual retries of runs launched by backfills are no longer considered part of the backfill if the backfill is complete when the retry is launched.
• [dagster-fivetran] Fivetran assets can now be materialized using the FivetranWorkspace.sync_and_poll(…) method in the definition of a @fivetran_assets decorator.
• [dagster-fivetran] load_fivetran_asset_specs has been updated to accept an instance of DagsterFivetranTranslator or custom subclass.
• [dagster-fivetran] The fivetran_assets decorator was added. It can be used with the FivetranWorkspace resource and DagsterFivetranTranslator translator to load Fivetran tables for a given connector as assets in Dagster. The build_fivetran_assets_definitions factory can be used to create assets for all the connectors in your Fivetran workspace.
• [dagster-aws] ECSPipesClient.run now waits up to 70 days for tasks completion (waiter parameters are configurable) (Thanks @jenkoian!)
• [dagster-dbt] Update dagster-dbt scaffold template to be compatible with uv (Thanks @wingyplus!).
• [dagster-airbyte] A load_airbyte_cloud_asset_specs function has
  been added. It can be used with the AirbyteCloudWorkspace resource and DagsterAirbyteTranslator translator to load your Airbyte Cloud connection streams as external assets in Dagster.
• [ui] Add an icon for the icechunk kind.
• [ui] Improved ui for manual sensor/schedule evaluation.

Bugfixes

• Fixed database locking bug for the ConsolidatedSqliteEventLogStorage, which is mostly used for tests.
• [dagster-aws] Fixed a bug in the ECSRunLauncher that prevented it from accepting a user-provided task definition when DAGSTER_CURRENT_IMAGE was not set in the code location.
• [ui] Fixed an issue that would sometimes cause the asset graph to fail to render on initial load.
• [ui] Fix global auto-materialize tick timeline when paginating.

1.9.4 (core) / 0.25.4 (libraries)

New

• Global op concurrency is now enabled on the default SQLite storage. Deployments that have not been migrated since 1.6.0 may need to run dagster instance migrate to enable.
• Introduced map_asset_specs to enable modifying AssetSpecs and AssetsDefinitions in bulk.
• Introduced AssetSpec.replace_attributes and AssetSpec.merge_attributes to easily alter properties of an asset spec.
• [ui] Add a "View logs" button to open tick logs in the sensor tick history table.
• [ui] Add Spanner kind icon.
• [ui] The asset catalog now supports filtering using the asset selection syntax.
• [dagster-pipes, dagster-aws] PipesS3MessageReader now has a new parameter include_stdio_in_messages which enables log forwarding to Dagster via Pipes messages.
• [dagster-pipes] Experimental: A new Dagster Pipes message type log_external_stream has been added. It can be used to forward external logs to Dagster via Pipes messages.
• [dagster-powerbi] Opts in to using admin scan APIs to pull data from a Power BI instance. This can be disabled by passing load_powerbi_asset_specs(..., use_workspace_scan=False).
• [dagster-sigma] Introduced an experimental dagster-sigma snapshot command, allowing Sigma workspaces to be captured to a file for faster subsequent loading.

Bugfixes

• Fixed a bug that caused DagsterExecutionStepNotFoundError errors when trying to execute an asset check step of a run launched by a backfill.
• Fixed an issue where invalid cron strings like "0 0 30 2 *" that represented invalid dates in February were still allowed as Dagster cron strings, but then failed during schedule execution. Now, these invalid cronstrings will raise an exception when they are first loaded.
• Fixed a bug where owners added to AssetOuts when defining a @graph_multi_asset were not added to the underlying AssetsDefinition.
• Fixed a bug where using the & or | operators on AutomationConditions with labels would cause that label to be erased.
• [ui] Launching partitioned asset jobs from the launchpad now warns if no partition is selected.
• [ui] Fixed unnecessary middle truncation occurring in dialogs.
• [ui] Fixed timestamp labels and "Now" line rendering bugs on the sensor tick timeline.
• [ui] Opening Dagster's UI with a single job defined takes you to the Overview page rather than the Job page.
• [ui] Fix stretched tags in backfill table view for non-partitioned assets.
• [ui] Open automation sensor evaluation details in a dialog instead of navigating away.
• [ui] Fix scrollbars in dark mode.
• [dagster-sigma] Workbooks filtered using a SigmaFilter no longer fetch lineage information.
• [dagster-powerbi] Fixed an issue where reports without an upstream dataset dependency would fail to translate to an asset spec.

Deprecations

• [dagster-powerbi] DagsterPowerBITranslator.get_asset_key is deprecated in favor of DagsterPowerBITranslator.get_asset_spec().key
• [dagster-looker] DagsterLookerApiTranslator.get_asset_key is deprecated in favor of DagsterLookerApiTranslator.get_asset_spec().key
• [dagster-sigma] DagsterSigmaTranslator.get_asset_key is deprecated in favor of DagsterSigmaTranslator.get_asset_spec().key
• [dagster-tableau] DagsterTableauTranslator.get_asset_key is deprecated in favor of DagsterTableauTranslator.get_asset_spec().key

1.9.3 (core) / 0.25.3 (libraries)

New

• Added run_id to the run_tags index to improve database performance. Run dagster instance migrate to update the index. (Thanks, @HynekBlaha!)

• Added icons for kind tags: Cassandra, ClickHouse, CockroachDB, Doris, Druid, Elasticsearch, Flink, Hadoop, Impala, Kafka, MariaDB, MinIO, Pinot, Presto, Pulsar, RabbitMQ, Redis, Redpanda, ScyllaDB, Starrocks, and Superset. (Thanks, @swrookie!)

• Added a new icon for the Denodo kind tag. (Thanks, @tintamarre!)

• Errors raised from defining more than one Definitions object at module scope now include the object names so that the source of the error is easier to determine.

• [ui] Asset metadata entries like dagster/row_count now appear on the events page and are properly hidden on the overview page when they appear in the sidebar.

• [dagster-aws] PipesGlueClient now attaches AWS Glue metadata to Dagster results produced during Pipes invocation.

• [dagster-aws] PipesEMRServerlessClient now attaches AWS EMR Serverless metadata to Dagster results produced during Pipes invocation and adds Dagster tags to the job run.

• [dagster-aws] PipesECSClient now attaches AWS ECS metadata to Dagster results produced during Pipes invocation and adds Dagster tags to the ECS task.

• [dagster-aws] PipesEMRClient now attaches AWS EMR metadata to Dagster results produced during Pipes invocation.

• [dagster-databricks] PipesDatabricksClient now attaches Databricks metadata to Dagster results produced during Pipes invocation and adds Dagster tags to the Databricks job.

• [dagster-fivetran] Added load_fivetran_asset_specs function. It can be used with the FivetranWorkspace resource and DagsterFivetranTranslator translator to load your Fivetran connector tables as external assets in Dagster.

• [dagster-looker] Errors are now handled more gracefully when parsing derived tables.

• [dagster-sigma] Sigma assets now contain extra metadata and kind tags.

• [dagster-sigma] Added support for direct workbook to warehouse table dependencies.

• [dagster-sigma] Added include_unused_datasets field to SigmaFilter to disable pulling datasets that aren't used by a downstream workbook.

• [dagster-sigma] Added skip_fetch_column_data option to skip loading Sigma column lineage. This can speed up loading large instances.

• [dagster-sigma] Introduced an experimental dagster-sigma snapshot command, allowing Sigma workspaces to be captured to a file for faster subsequent loading.

  Introducing: dagster-airlift (experimental)

  dagster-airlift is coming out of stealth. See the initial Airlift RFC here, and the following documentation to learn more:

  • A full Airflow migration tutorial.
  • A tutorial on federating between Airflow instances.

  More Airflow-related content is coming soon! We'd love for you to check it out, and post any comments / questions in the #airflow-migration channel in the Dagster slack.

Bugfixes

• Fixed a bug in run status sensors where setting incompatible arguments monitor_all_code_locations and monitored_jobs did not raise the expected error. (Thanks, @apetryla!)
• Fixed an issue that would cause the label for AutomationCondition.any_deps_match() and AutomationCondition.all_deps_match() to render incorrectly when allow_selection or ignore_selection were set.
• Fixed a bug which could cause code location load errors when using CacheableAssetsDefinitions in code locations that contained AutomationConditions
• Fixed an issue where the default multiprocess executor kept holding onto subprocesses after their step completed, potentially causing Too many open files errors for jobs with many steps.
• [ui] Fixed an issue introduced in 1.9.2 where the backfill overview page would sometimes display extra assets that were targeted by the backfill.
• [ui] Fixed "Open in Launchpad" button when testing a schedule or sensor by ensuring that it opens to the correct deployment.
• [ui] Fixed an issue where switching a user setting was immediately saved, rather than waiting for the change to be confirmed.
• [dagster-looker] Unions without unique/distinct criteria are now properly handled.
• [dagster-powerbi] Fixed an issue where reports without an upstream dataset dependency would fail to translate to an asset spec.
• [dagster-sigma] Fixed an issue where API fetches did not paginate properly.

Documentation

• Added an Airflow Federation Tutorial.
• Added dagster-dingtalk to the list of community supported libraries.
• Fixed typos in the dagster-wandb (Weights and Biases) documentation. (Thanks, @matt-weingarten!)
• Updated the Role-based Access Control (RBAC) documentation.
• Added additional information about filtering to the dagster-sigma documentation.

Dagster Plus

• [ui] Fixed an issue with filtering and catalog search in branch deployments.
• [ui] Fixed an issue where the asset graph would reload unexpectedly.

1.9.2 (core) / 0.25.2 (libraries)

New

• Introduced a new constructor, AssetOut.from_spec, that will construct an AssetOut from an AssetSpec.
• [ui] Column tags are now displayed in the Column name section of the asset overview page.
• [ui] Introduced an icon for the gcs (Google Cloud Storage) kind tag.
• [ui] Introduced icons for report and semanticmodel kind tags.
• [ui] The tooltip for a tag containing a cron expression now shows a human-readable, timezone-aware cron string.
• [ui] Asset check descriptions are now sourced from docstrings and rendered in the UI. (Thanks, @marijncv!)
• [dagster-aws] Added option to propagate tags to ECS tasks when using the EcsRunLauncher. (Thanks, @zyd14!)
• [dagster-dbt] You can now implement DagsterDbtTranslator.get_code_version to customize the code version for your dbt assets. (Thanks, @Grzyblon!)
• [dagster-pipes] Added the ability to pass arbitrary metadata to PipesClientCompletedInvocation. This metadata will be attached to all materializations and asset checks stored during the pipes invocation.
• [dagster-powerbi] During a full workspace scan, owner and column metadata is now automatically attached to assets.

Bugfixes

• Fixed an issue with AutomationCondition.execution_in_progress which would cause it to evaluate to True for unpartitioned assets that were part of a run that was in progress, even if the asset itself had already been materialized.
• Fixed an issue with AutomationCondition.run_in_progress that would cause it to ignore queued runs.
• Fixed an issue that would cause a default_automation_condition_sensor to be constructed for user code servers running on dagster version < 1.9.0 even if the legacy auto_materialize: use_sensors configuration setting was set to False.
• [ui] Fixed an issue when executing asset checks where the wrong job name was used in some situations. The correct job name is now used.
• [ui] Selecting assets with 100k+ partitions no longer causes the asset graph to temporarily freeze.
• [ui] Fixed an issue that could cause a GraphQL error on certain pages after removing an asset.
• [ui] The asset events page no longer truncates event history in cases where both materialization and observation events are present.
• [ui] The backfill coordinator logs tab no longer sits in a loading state when no logs are available to display.
• [ui] Fixed issue which would cause the "Partitions evaluated" label on an asset's automation history page to incorrectly display 0 in cases where all partitions were evaluated.
• [ui] Fix "Open in Playground" link when testing a schedule or sensor by ensuring that it opens to the correct deployment.
• [ui] Fixed an issue where the asset graph would reload unexpectedly.
• [dagster-dbt] Fixed an issue where the SQL filepath for a dbt model was incorrectly resolved when the dbt manifest file was built on a Windows machine, but executed on a Unix machine.
• [dagster-pipes] Asset keys containing embedded / characters now work correctly with Dagster Pipes.

Documentation

• Community-hosted integrations are now listed on the Integrations page.
• Added a tutorial, reference page and API docs for dagster-airlift.
• Fixed a typo in the label for superseded APIs. (Thanks, @matt-weingarten!)

Deprecations

• The types-sqlalchemy package is no longer included in the dagster[pyright] extra package.

Dagster Plus

• [ui] The Environment Variables table can now be sorted by name and update time.
• [ui] The code location configuration dialog now contains more metadata about the code location.
• [ui] Fixed an issue where the incorrect user icons were shown in the Users table when a search filter had been applied.

1.9.1 (core) / 0.25.1 (libraries)

New

• dagster project scaffold now has an option to create dagster projects from templates with excluded files/filepaths.
• [ui] Filters in the asset catalog now persist when navigating subdirectories.
• [ui] The Run page now displays the partition(s) a run was for.
• [ui] Filtering on owners/groups/tags is now case-insensitive.
• [dagster-tableau] the helper function parse_tableau_external_and_materializable_asset_specs is now available to parse a list of Tableau asset specs into a list of external asset specs and materializable asset specs.
• [dagster-looker] Looker assets now by default have owner and URL metadata.
• [dagster-k8s] Added a per_step_k8s_config configuration option to the k8s_job_executor, allowing the k8s configuration of individual steps to be configured at run launch time (thanks @Kuhlwein!)
• [dagster-fivetran] Introduced DagsterFivetranTranslator to customize assets loaded from Fivetran.
• [dagster-snowflake] dagster_snowflake.fetch_last_updated_timestamps now supports ignoring tables not found in Snowflake instead of raising an error.

Bugfixes

• Fixed issue which would cause a default_automation_condition_sensor to be constructed for user code servers running on dagster version < 1.9.0 even if the legacy auto_materialize: use_sensors configuration setting was set to False.
• Fixed an issue where running dagster instance migrate on Dagster version 1.9.0 constructed a SQL query that exceeded the maximum allowed depth.
• Fixed an issue where wiping a dynamically partitioned asset causes an error.
• [dagster-polars] ImportErrors are no longer raised when bigquery libraries are not installed [#25708]

Documentation

• [dagster-dbt] A guide on how to use dbt defer with Dagster branch deployments has been added to the dbt reference.

1.9.0 (core) / 0.25.0 (libraries)

Major changes since 1.8.0 (core) / 0.24.0 (libraries)

Automation

• Declarative Automation, the system which enables setting per-asset AutomationConditions, is no longer experimental. We now recommend using this system in all cases where asset-centric orchestration is desired. A suite of built-in static constructors have been added for common usecases, such as AutomationCondition.on_missing() (which can fill in missing partitions of assets as soon as upstream data is available), and AutomationCondition.all_deps_blocking_checks_passed() (which can prevent materialization of assets until all upstream blocking checks have passed).
• You can now assign AutomationConditions to asset checks, via the automation_condition parameter on @asset_check or AssetCheckSpec.
• You can now assign AutomationConditions to observable source assets, via the automation_condition parameter on @observable_source_asset.
• [experimental] You can now define custom subclasses of AutomationCondition to execute arbitrary Python code in the context of a broader expression. This allows you to compose built-in conditions with custom business logic.
• The target arguments on schedules and sensors are now marked stable, allowing a stable way for schedules and sensors to target asset selections without needing to define a job.

Integrations

• Introduced a slate of integrations with business intelligence (BI) tools, enabling dashboards, views, and reports to be represented in the Dagster asset graph.
  • Looker
  • Power BI
  • Sigma
  • Tableau
• A rich set of metadata is now automatically collected by our suite of ELT integrations.
  • The dagster/table_name metadata tag, containing the fully-qualified name of the destination model, has been added for Airbyte, dlt, Fivetran and Sling assets.
  • The dagster/row_count metadata tag, containing the number of records loaded in the corresponding run, has been added for dlt and Sling assets.
  • The dagster/column_schema metadata tag, containing column schema information of the destination tables, has been added for Fivetran assets.
  • Column lineage information is now collected for Sling assets.
• dagster-pipes are replacing the now deprecated Step Launchers as the new recommended approach for executing remote Spark jobs. Three new Pipes clients for running Spark applications on Amazon Web Services have been added:
  • dagster_aws.pipes.PipesGlueClient
  • dagster_aws.pipes.PipesEMRServerlessClient
  • dagster_aws.pipes.PipesEMRClient

UI

• Several changes have been made to the information architecture to make it easier to find what you’re looking for:
  • Backfills have been moved from their own tab underneath the Overview page to entries within the table on the Runs page. This reflects the fact that backfills and runs are similar entities that share most properties. You can continue to use the legacy Runs page with the “Revert to legacy Runs page” user setting. (GitHub Discussion)
  • “Jobs” is now a page reachable from the top-level navigation pane. It replaces the Jobs tab within the Overview page.
  • “Automations” is now a page reachable from the top-level navigation pane. It replaces the schedule and sensor tabs within the Overview page.
• @asset and AssetSpec now have a kinds attribute that enables specifying labels that show up on asset nodes in the asset graph in the UI. This supersedes the compute_kind attribute.

Changes since 1.8.13 (core) / 0.24.13 (libraries)

New

• The tags parameter to @asset and AssetSpec is no longer marked as experimental.
• The @observable_source_asset decorator now supports an automation_condition argument.
• AutomationCondition and associated APIs are no longer marked as experimental.
• Added a new use_user_code_server parameter to AutomationConditionSensorDefinition. If set, the sensor will be evaluated in the user code server (as traditional sensors are), allowing custom AutomationCondition subclasses to be evaluated.
• Added a new column to the BulkActions table, a new column to the Runs table, and a new BackfillTags table to improve the performance of the Runs page. To take advantage of these performance improvements, run dagster instance migrate. This migration involves a schema migration to add the new columns and table, and a data migration to populate the new columns for historical backfills and runs.
• Performance improvements when loading definitions with multi-assets with many asset keys.
• [ui] The previously-experimental changes to the top nav are now enabled for all users.
• [ui] Added new code location pages which provide information regarding library versions, metadata, and definitions.
• [ui] The new version of the Runs page is now enabled by default. To use the legacy version of the Runs page, toggle the "Revert to legacy Runs page" user setting.
• [ui] Clicking an asset with failed partitions on the asset health overview now takes you to a list of the failed partitions.
• [ui] The Materialize button runs pre-flight checks more efficiently, resulting in faster run launch times.
• [dagster-pipes] Added support for multi-container log streaming (thanks, @MattyKuzyk!)
• [dagster-docker] container_kwargs.stop_timeout can now be set when using the DockerRunLauncher or docker_executor to configure the amount of time that Docker will wait when terminating a run for it to clean up before forcibly stopping it with a SIGKILL signal.
• [dagster-dbt] Performance improvements when loading definitions using build_dbt_asset_selection.

Bugfixes

• [ui] Fixed redirect behavior on full pageloads of the legacy auto-materialize overview page.
• [ui] Plots for assets that emit materialization and observation events at different rates no longer display a time period missing the more frequent event type.
• [ui] Fixed issue causing scrolling to misbehave on the concurrency settings page.
• [helm] The blockOpConcurrencyLimitedRuns section of queuedRunCoordinator now correctly templates the appropriate config.
• [dagster-pipes] Fixed issue where k8s ops would fail after 4 hours (thanks, @MattyKuzyk!)

Documentation

• [dagster-dbt] Added guide for using dbt defer with Dagster branch deployments.
• [docs] Step Launchers documentation has been removed and replaced with references to Dagster Pipes.
• [docs] Fixed code example in Dagster Essentials (thanks, @aleexharris!)

Breaking Changes

• dagster no longer supports Python 3.8, which hit EOL on 2024-10-07.
• dagster now requires pydantic>=2.
• By default, AutomationConditionSensorDefinitions will now emit backfills to handle cases where more than one partition of an asset is requested on a given tick. This allows that asset's BackfillPolicy to be respected. This feature can be disabled by setting allow_backfills to False.
• Passing a custom PartitionsDefinition subclass into a Definitions object now issues an error instead of a deprecation warning.
• AssetExecutionContext is no longer a subclass of OpExecutionContext. At this release, AssetExecutionContext and OpExecutionContext implement the same methods, but in the future, the methods implemented by each class may diverge. If you have written helper functions with OpExecutionContext type annotations, they may need to be updated to include AssetExecutionContext depending on your usage. Explicit calls to isinstance(context, OpExecutionContext) will now fail if context is an AssetExecutionContext.
• The asset_selection parameter on AutomationConditionSensorDefinition has been renamed to target, to align with existing sensor APIs.
• The experimental freshness_policy_sensor has been removed, as it relies on the long-deprecated FreshnessPolicy API.
• The deprecated external_assets_from_specs and external_asset_from_spec methods have been removed. Users should use AssetsDefinition(specs=[...]), or pass specs directly into the Definitions object instead.
• AssetKey objects can no longer be iterated over or indexed in to. This behavior was never an intended access pattern and in all observed cases was a mistake.
• The dagster/relation_identifier metadata key has been renamed to dagster/table_name.
• [dagster-ge] dagster-ge now only supports great_expectations>=0.17.15. The ge_validation_op_factory API has been replaced with the API previously called ge_validation_op_factory_v3.
• [dagster-aws] Removed deprecated parameters from dagster_aws.pipes.PipesGlueClient.run.
• [dagster-embedded-elt] Removed deprecated parameter dlt_dagster_translator from @dlt_assets. The dagster_dlt_translator parameter should be used instead.
• [dagster-polars] Dropped support for saving storage-level arbitrary metadata via IOManagers.

Deprecations

• The DataBricksPysparkStepLauncher, EmrPySparkStepLauncher, and any custom subclass of StepLauncher have been marked as deprecated, but will not be removed from the codebase, meaning they will continue to function as they currently do for the foreseeable future. Their functionality has been superseded by the interfaces provided by dagster-pipes, and so future development work will be focused there.
• The experimental multi_asset_sensor has been marked as deprecated, as its main use cases have been superseded by the AutomationCondition APIs. However, it will not be removed from the codebase.