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RELEASE.md

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Version 0.30.0

Major Features and Improvements

  • Upgraded TFX to KFP compiler to use KFP IR schema version 2.0.0.
  • InfraValidator can now produce a SavedModel with warmup requests. This feature is enabled by setting RequestSpec.make_warmup = True. The SavedModel will be stored in the InfraBlessing artifact (blessing output of InfraValidator).
  • Pusher's model input is now optional, and infra_blessing can be used instead to push the SavedModel with warmup requests, produced by an InfraValidator. Note that InfraValidator does not always create a SavedModel, and the producer InfraValidator must be configured with RequestSpec.make_warmup = True in order to be pushed by a Pusher.
  • Support is added for the JSON_VALUE artifact property type, allowing storage of JSON-compatible objects as artifact metadata.
  • Support is added for the KFP v2 artifact metadata field when executing using the KFP v2 container entrypoint.
  • InfraValidator for Kubernetes now can override Pod manifest to customize annotations and environment variables.
  • Allow Beam pipeline args to be extended by specifying beam_pipeline_args per component.
  • Support string RuntimeParameters on Airflow.
  • User code specified through the module_file argument for the Evaluator, Transform, Trainer and Tuner components is now packaged as a pip wheel for execution. For Evaluator and Transform, these wheel packages are now installed on remote Apache Beam workers.

Breaking Changes

For Pipeline Authors

  • CLI usage with kubeflow changed significantly. You MUST use the new:
  • --build-image to build a container image when updating a pipeline with kubeflow engine.
  • --build-target-image flag in CLI is changed to --build-image without any container image argument. TFX will auto detect the image specified in the KubeflowDagRunnerConfig class instance. For example, 
    tfx pipeline create --pipeline-path=runner.py --endpoint=xxx --build-image
tfx pipeline update --pipeline-path=runner.py --endpoint=xxx --build-image
  • --package-path and --skaffold_cmd flags were deleted. The compiled path can be specified when creating a KubeflowDagRunner class instance. TFX CLI doesn't depend on skaffold any more and use Docker SDK directly.
  • Default orchestration engine of CLI was changed to local orchestrator from beam orchestrator. You can still use beam orchestrator with --engine=beam flag.
  • Trainer now uses GenericExecutor as default. To use the previous Estimator based Trainer, please set custom_executor_spec to trainer.executor.Executor.
  • Changed the pattern spec supported for QueryBasedDriver:
    • @span_begin_timestamp: Start of span interval, Timestamp in seconds.
    • @span_end_timestamp: End of span interval, Timestamp in seconds.
    • @span_yyyymmdd_utc: STRING with format, e.g., '20180114', corresponding to the span interval begin in UTC.
  • Removed the already deprecated compile() method on Kubeflow V2 Dag Runner.
  • Removed project_id argument from KubeflowV2DagRunnerConfig which is not used and meaningless if not used with GCP.
  • Removed config from LocalDagRunner's constructor, and dropped pipeline proto support from LocalDagRunner's run function.
  • Removed input parameter in ExampleGen constructor and external_input in dsl_utils, which were called as deprecated in TFX 0.23.
  • Changed the storage type of span and version custom property in Examples artifact from string to int.
  • ResolverStrategy.resolve_artifacts() method signature has changed to take ml_metadata.MetadataStore object as the first argument.
  • Artifacts param is deprecated/ignored in Channel constructor.
  • Removed matching_channel_name from Channel's constructor.
  • Deleted all usages of instance_name, which was deprecated in version 0.25.0. Please use .with_id() method of components.
  • Removed output channel overwrite functionality from all official components.
  • Transform will use the native TF2 implementation of tf.transform unless TF2 behaviors are explicitly disabled. The previous behaviour can still be obtained by setting force_tf_compat_v1=True.

For Component Authors

  • N/A

Deprecations

  • RuntimeParameter usage for module_file and user-defined function paths is marked experimental.
  • LatestArtifactsResolver, LatestBlessedModelResolver, SpansResolver are renamed to LatestArtifactStrategy, LatestBlessedModelStrategy, SpanRangeStrategy respectively.

Bug Fixes and Other Changes

  • GCP compute project in BigQuery Pusher executor can be specified.
  • New extra dependencies for convenience.
    • tfx[airflow] installs all Apache Airflow orchestrator dependencies.
    • tfx[kfp] installs all Kubeflow Pipelines orchestrator dependencies.
    • tfx[tf-ranking] installs packages for TensorFlow Ranking. NOTE: TensorFlow Ranking only compatible with TF >= 2.0.
  • Depends on 'google-cloud-bigquery>=1.28.0,<3'. (This was already installed as a transitive dependency from the first release of TFX.)
  • Depends on google-cloud-aiplatform>=0.5.0,<0.8.
  • Depends on ml-metadata>=0.30.0,<0.31.0.
  • Depends on portpicker>=1.3.1,<2.
  • Depends on struct2tensor>=0.30.0,<0.31.0.
  • Depends on tensorflow>=1.15.2,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.5.*,<3.
  • Depends on tensorflow-data-validation>=0.30.0,<0.31.0.
  • Depends on tensorflow-model-analysis>=0.30.0,<0.31.0.
  • Depends on tensorflow-serving-api>=1.15,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.5.*,<3.
  • Depends on tensorflow-transform>=0.30.0,<0.31.0.
  • Depends on tfx-bsl>=0.30.0,<0.31.0.

Documentation Updates

  • N/A