Release Notes#

Future Releases

Enhancements
Fixes
Changes
Documentation Changes
Testing Changes

Warning

Breaking Changes

v0.80.0 Aug. 30, 2023

Enhancements
- Added support for prediction intervals for VARMAX regressor #4267
- Integrated multiseries time series into AutoMLSearch #4270
Fixes
- Fixed error when stacking data with no exogenous variables #4275
Changes
- Updated ARIMARegressor to be compatible with sktime v0.22.0 and beyond #4283
- Updated graph_prediction_vs_actual_over_time() to be compatible with multiseries time series #4284
- Updated excluded_model_families to take in a list of both str and ModelFamily data types #4287
- Unpinned ipywidgets #4288
Documentation Changes
- Removed erroneous warnings from Data Checks User Guide page and removed tqdm warning in all notebooks #4274
Testing Changes

Warning

Breaking Changes

v0.79.0 Aug. 11, 2023

Enhancements
- Updated regression metrics to handle multioutput dataframes as well as single output series #4233
- Added baseline regressor for multiseries time series problems #4246
- Added stacking and unstacking utility functions to work with multiseries data #4250
- Added multiseries regression pipeline class #4256
- Added multiseries VARMAX regressor #4238
Fixes
- Added support for pandas 2 #4216
- Fixed bug where time series pipelines would fail due to MASE needing y_train when scoring #4258
- Update s3 bucket for docs image #4260
- Fix deps checker including any package with post in the name #4268
Changes
- Unpinned sktime version #4214
- Bumped minimum lightgbm version to 4.0.0 for nullable type handling #4237
- Pinned scikit-learn version due to incompatibility with pinned imbalanced-learn #4248
Documentation Changes
Testing Changes

Warning

Breaking Changes

v0.78.0 Jul. 10, 2023

Enhancements
- Add run_feature_selection to AutoMLSearch and Default Algorithm #4210
- Added SMAPE to the standard metrics for time series problems #4220
- Added MASE metric and y_train parameter to objectives #4221
Fixes
- IDColumnsDataCheck now works with Unknown data type #4203
Changes
- Upgraded minimum SHAP version to 0.42.0 and unpinned numpy version #4228
Documentation Changes
- Updated API reference #4213

Warning

Breaking Changes

Removed Decision Tree and CatBoost Estimators from AutoML search #4205
Removed first batch from default algorithm #4215

v0.77.0 Jun. 07, 2023

Enhancements
- Added check_distribution function for determining if the predicted distribution matches the true one #4184
- Added get_recommendation_score_breakdown function for insight on the recommendation score #4188
- Added excluded_model_families parameter to AutoMLSearch() #4196
- Added option to exclude time index in IDColumnsDataCheck #4194
Fixes
- Fixed small errors in ARIMARegressor implementation #4186
- Fixed get_forecast_period to properly handle gap parameter #4200
Changes
Documentation Changes
Testing Changes
- Run looking glass performance tests on merge via Airflow #4198

v0.76.0 May. 09, 2023

Enhancements
- Added optional recommendation_score to rank pipelines during AutoMLSearch #4156
- Added BytesIO support to PipelinBase.load() #4179
Fixes
- Capped numpy at <=1.23.5 as a temporary measure for SHAP #4172
- Updated our readthedocs recipe to reenable builds #4177

v0.75.0 May. 01, 2023

Fixes
- Fixed bug where resetting the holdout data indices would cause time series predict_in_sample to be wrong #4161
Changes
- Changed per-pipeline timings to store as a float #4160
- Update Dask install commands in pyproject.toml #4164
- Capped IPython version to < 8.12.1 for readthedocs and plotly compatibility #3987

v0.74.0 Apr. 18, 2023

Enhancements
- Saved computed additional_objectives computed during search to AutoML object #4141
- Remove extra naive pipelines #4142
Fixes
- Fixed usage of codecov after uploader deprecation #4144
- Fixed issue where prediction intervals were becoming NaNs due to index errors #4154
Changes
- Capped size of seasonal period used for determining whether to include STLDecomposer in pipelines #4147

v0.73.0 Apr. 10, 2023

Enhancements
- Allowed InvalidTargetDataCheck to return a DROP_ROWS DataCheckActionOption #4116
- Implemented prediction intervals for non-time series native pipelines using the naïve method #4127
Changes
- Removed unnecessary logic from imputer components prior to nullable type handling #4038, #4043
- Added calls to _handle_nullable_types in component fit, transform, and predict methods when needed #4046, #4043
- Removed existing nullable type handling across AutoMLSearch to just use new handling #4085, #4043
- Handled nullable type incompatibility in Decomposer #4105, :pr:`4043
- Removed nullable type incompatibility handling for ARIMA and ExponentialSmoothingRegressor #4129
- Changed the default value for null_strategy in InvalidTargetDataCheck to drop #4131
- Pinned sktime version to 0.17.0 for nullable types support #4137
Testing Changes
- Fixed installation of prophet for linux nightly tests #4114

v0.72.0 Mar. 27, 2023

Enhancements
- Updated pipeline.get_prediction_intervals() to add trend prediction interval information from STL decomposer #4093
- Added method=all support for TargetLeakageDataCheck #4106
Fixes
- Fixed ensemble pipelines not working with generate_pipeline_example #4102
Changes
- Pinned ipywidgets version under 8.0.5 #4097
- Calculated partial dependence grid values for integer data by rounding instead of truncating fractional values #4096
Testing Changes
- Updated graphviz installation in GitHub workflows to fix windows nightlies #4088

v0.71.0 Mar. 17, 2023*

Fixes
- Fixed error in PipelineBase._supports_fast_permutation_importance with stacked ensemble pipelines #4083

v0.70.0 Mar. 16, 2023

Changes
- Added Oversampler nullable type incompatibility in X #4068
- Removed nullable handling from objective functions, roc_curve, and correlation_matrix #4072
- Transitioned from prophet-prebuilt to prophet directly #4045

v0.69.0 Mar. 15, 2023

Enhancements
- Move black to regular dependency and use it for generate_pipeline_code #4005
- Implement generate_pipeline_example #4023
- Add new downcast utils for component-specific nullable type handling and begin implementation on objective and component base classes #4024
- Add nullable type incompatibility properties to the components that need them #4031
- Add get_evalml_requirements_file #4034
- Pipelines with DFS Transformers will run fast permutation importance if DFS features pre-exist #4037
- Add get_prediction_intervals() at the pipeline level #4052
Fixes
- Fixed generate_pipeline_example erroring out for pipelines with a DFSTransformer #4059
- Remove nullable types handling for OverSampler #4064
Changes
- Uncapped pmdarima and updated minimum version #4027
- Increase min catboost to 1.1.1 and xgboost to 1.7.0 to add nullable type support for those estimators #3996
- Unpinned networkx and updated minimum version #4035
- Increased scikit-learn version to 1.2.2 #4064
- Capped max holidays version to 0.21 #4064
- Stop allowing knn as a boolean impute strategy #4058
- Capped nbsphinx at < 0.9.0 #4071
Testing Changes
- Use release.yaml for performance tests on merge to main #4007
- Pin github-action-check-linked-issues at v1.4.5 #4042
- Updated tests to support Woodwork’s object dtype inference for numeric columns #4066
- Updated TargetLeakageDataCheck tests to handle boolean targets properly #4066

v0.68.0 Feb. 15, 2023

Enhancements
- Integrated determine_periodicity into AutoMLSearch #3952
- Removed frequency limitations for decomposition using the STLDecomposer #3952
Changes
- Remove requirements-parser requirement #3978
- Updated the SKOptTuner to use a gradient boosting regressor for tuning instead of extra trees #3983
- Unpinned sktime from below 1.2, increased minimum to 1.2.1 #3983
Testing Changes
- Add pull request check for linked issues to CI workflow #3970, #3980
- Upgraded minimum IPython version to 8.10.0 #3987

v0.67.0 Jan. 31, 2023

Fixes
- Re-added TimeSeriesPipeline.should_skip_featurization to fix bug where data would get featurized unnecessarily #3964
- Allow float categories to be passed into CatBoost estimators #3966
Changes
- Update pyproject.toml to correctly specify the data filepaths #3967
Documentation Changes
- Added demo for prediction intervals #3954

v0.66.1 Jan. 26, 2023

Fixes
- Updated LabelEncoder to store the original typing information #3960
- Fixed bug where all-null BooleanNullable columns would break the imputer during transform #3959

v0.66.0 Jan. 24, 2023

Enhancements
- Improved decomposer determine_periodicity functionality for better period guesses #3912
- Added dates_needed_for_prediction for time series pipelines #3906
- Added RFClassifierRFESelector and RFRegressorRFESelector components for feature selection using recursive feature elimination #3934
- Added dates_needed_for_prediction_range for time series pipelines #3941
Fixes
- Fixed set_period() not updating decomposer parameters #3932
- Removed second identical batch for time series problems in DefaultAlgorithm #3936
- Fix install command for alteryx-open-src-update-checker #3940
- Fixed non-prophet case of test_components_can_be_used_for_partial_dependence_fast_mode #3949
Changes
- Updated PolynomialDecomposer to work with sktime v0.15.1 #3930
- Add ruff and use pyproject.toml (move away from setup.cfg) #3928
- Pinned category-encoders` to 2.5.1.post0 #3933
- Remove requirements-parser and tomli from core requirements #3948

v0.65.0 Jan. 3, 2023

Enhancements
- Added the ability to retrieve prediction intervals for estimators that support time series regression #3876
- Added utils to handle the logic for threshold tuning objective and resplitting data #3888
- Integrated OrdinalEncoder into AutoMLSearch #3765
Fixes
- Fixed ARIMA not accounting for gap in prediction from end of training data #3884
- Fixed DefaultAlgorithm adding an extra OneHotEncoder when a categorical column is not selected #3914
Changes
- Added a threshold to DateTimeFormatDataCheck to account for too many duplicate or nan values #3883
- Changed treatment of Boolean columns for SimpleImputer and ClassImbalanceDataCheck to be compatible with new Woodwork inference #3892
- Split decomposer seasonal_period parameter into seasonal_smoother and period parameters #3896
- Excluded catboost from the broken link checking workflow due to 403 errors #3899
- Pinned scikit-learn version below 1.2.0 #3901
- Cast newly created one hot encoded columns as bool dtype #3913
Documentation Changes
- Hid non-essential warning messages in time series docs #3890
Testing Changes

v0.64.0 Dec. 8, 2022

Enhancements
Fixes
- Allowed the DFS Transformer to calculate feature values for Features with a dataframe_name that is not "X" #3873
- Stopped passing full list of DFS Transformer features into cloned pipeline in partial dependence fast mode #3875
Changes
- Update leaderboard names to show ranking_score instead of validation_score #3878
- Remove Int64Index after Pandas 1.5 Upgrade #3825
- Reduced the threshold for setting use_covariates to False for ARIMA models in AutoMLSearch #3868
- Pinned woodwork version at <=0.19.0 #3871
- Updated minimum Pandas version to 1.5.0 #3808
- Remove dsherry from automated dependency update reviews and added tamargrey #3870
Documentation Changes
Testing Changes

v0.63.0 Nov. 23, 2022

Enhancements
- Added fast mode to partial dependence #3753
- Added the ability to serialize featuretools features into time series pipelines #3836
Fixes
- Fixed TimeSeriesFeaturizer potentially selecting lags outside of feature engineering window #3773
- Fixed bug where TimeSeriesFeaturizer could not encode Ordinal columns with non numeric categories #3812
- Updated demo dataset links to point to new endpoint #3826
- Updated STLDecomposer to infer the time index frequency if it’s not present #3829
- Updated _drop_time_index to move the time index from X to both X.index and y.index #3829
- Fixed bug where engineered features lost their origin attribute in partial dependence, causing it to fail #3830
- Fixed bug where partial dependence’s fast mode handling for the DFS Transformer wouldn’t work with multi output features #3830
- Allowed target to be present and ignored in partial dependence’s DFS Transformer fast mode handling #3830
Changes
- Consolidated decomposition frequency validation logic to Decomposer class #3811
- Removed Featuretools version upper bound and prevent Woodwork 0.20.0 from being installed #3813
- Updated min Featuretools version to 0.16.0, min nlp-primitives version to 2.9.0 and min Dask version to 2022.2.0 #3823
- Rename issue templates config.yaml to config.yml #3844
- Reverted change adding a should_skip_featurization flag to time series pipelines #3862
Documentation Changes
- Added information about STL Decomposition to the time series docs #3835
- Removed RTD failure on warnings #3864

v0.62.0 Nov. 01, 2022

Fixes
- Fixed bug with datetime conversion in get_time_index #3792
- Fixed bug where invalid anchored or offset frequencies were including the STLDecomposer in pipelines #3794
- Fixed bug where irregular datetime frequencies were causing errors in make_pipeline #3800
Changes
- Capped dask at < 2022.10.1 #3797
- Uncapped dask and excluded 2022.10.1 from viable versions #3803
- Removed all references to XGBoost’s deprecated _use_label_encoder argument #3805
- Capped featuretools at < 1.17.0 #3805
- Capped woodwork at < 0.21.0 #3805

v0.61.1 Oct. 27, 2022

Fixes
- Fixed bug where TimeSeriesBaselinePipeline wouldn’t preserve index name of input features #3788
- Fixed bug in TimeSeriesBaselinePipeline referencing a static string instead of time index var #3788
Documentation Changes
- Updated Release Notes #3788

v0.61.0 Oct. 25, 2022

Enhancements
- Added the STL Decomposer #3741
- Integrated STLDecomposer into AutoMLSearch for time series regression problems #3781
- Brought the PolynomialDecomposer up to parity with STLDecomposer #3768
Changes
- Cap Featuretools at < 1.15.0 #3775
- Remove Featuretools upper bound restriction and fix nlp-primitives import statements #3778

v0.60.0 Oct. 19, 2022

Enhancements
- Add forecast functions to time series regression pipeline #3742
Fixes
- Fix to allow IDColumnsDataCheck to work with IntegerNullable inputs #3740
- Fixed datasets name for main performance tests #3743
Changes
- Use Woodwork’s dependence_dict method to calculate for TargetLeakageDataCheck #3728
Documentation Changes
Testing Changes

Warning

Breaking Changes

TargetLeakageDataCheck now uses argument mutual_info rather than mutual #3728

v0.59.0 Sept. 27, 2022

Enhancements
- Enhanced Decomposer with determine_periodicity function to automatically determine periodicity of seasonal target. #3729
- Enhanced Decomposer with set_seasonal_period function to set a Decomposer object’s seasonal period automatically. #3729
- Added OrdinalEncoder component #3736
Fixes
- Fixed holdout warning message showing when using default parameters #3727
- Fixed bug in Oversampler where categorical dtypes would fail #3732
Changes
- Automatic sorting of the time_index prior to running DataChecks has been disabled #3723
Documentation Changes
Testing Changes
- Update job to use new looking glass report command #3733

v0.58.0 Sept. 20, 2022

Enhancements
- Defined get_trend_df() for PolynomialDecomposer to allow decomposition of target data into trend, seasonality and residual. #3720
- Updated to run with Woodwork >= 0.18.0 #3700
- Pass time index column to time series native estimators but drop otherwise #3691
- Added errors attribute to AutoMLSearch for useful debugging #3702
Fixes
- Removed multiple samplers occurring in pipelines generated by DefaultAlgorithm #3696
- Fix search order changing when using DefaultAlgorithm #3704
Changes
- Bumped up minimum version of sktime to 0.12.0. #3720
- Added abstract Decomposer class as a parent to PolynomialDecomposer to support additional decomposers. #3720
- Pinned pmdarima < 2.0.0 #3679
- Added support for using downcast_nullable_types with Series as well as DataFrames #3697
- Added distinction between ranking and optimization objectives #3721
Documentation Changes
Testing Changes
- Updated pytest fixtures and brittle test files to explicitly set woodwork typing information #3697
- Added github workflow to run looking glass performance tests on merge to main #3690
- Fixed looking glass performance test script #3715
- Remove commit message from looking glass slack message #3719

v0.57.0 Sept. 6, 2022

Enhancements
- Added KNNImputer class and created new knn parameter for Imputer #3662
Fixes
- IDColumnsDataCheck now only returns an action code to set the first column as the primary key if it contains unique values #3639
- IDColumnsDataCheck now can handle primary key columns containing “integer” values that are of the double type #3683
- Added support for BooleanNullable columns in EvalML pipelines and imputer #3678
- Updated StandardScaler to only apply to numeric columns #3686
Changes
- Unpinned sktime to allow for version 0.13.2 #3685
- Pinned pmdarima < 2.0.0 #3679

v0.56.1 Aug. 19, 2022

Fixes
- IDColumnsDataCheck now only returns an action code to set the first column as the primary key if it contains unique values #3639
- Reverted the make_pipeline changes that conditionally included the imputers #3672

v0.56.0 Aug. 15, 2022

Enhancements
- Add CI testing environment in Mac for install workflow #3646
- Updated make_pipeline to only include the Imputer in pipelines if NaNs exist in the data #3657
- Updated to run with Woodwork >= 0.17.2 #3626
- Add exclude_featurizers parameter to AutoMLSearch to specify featurizers that should be excluded from all pipelines #3631
- Add fit_transform method to pipelines and component graphs #3640
- Changed default value of data splitting for time series problem holdout set evaluation #3650
Fixes
- Reverted the Woodwork 0.17.x compatibility work due to performance regression #3664
Changes
- Disable holdout set in AutoML search by default #3659
- Pinned sktime at >=0.7.0,<0.13.1 due to slowdowns with time series modeling #3658
- Added additional testing support for Python 3.10 #3609
Documentation Changes
- Updated broken link checker to exclude stackoverflow domain #3633
- Add instructions to add new users to evalml-core-feedstock #3636

v0.55.0 July. 24, 2022

Enhancements
- Increased the amount of logical type information passed to Woodwork when calling ww.init() in transformers #3604
- Added ability to log how long each batch and pipeline take in automl.search() #3577
- Added the option to set the sp parameter for ARIMA models #3597
- Updated the CV split size of time series problems to match forecast horizon for improved performance #3616
- Added holdout set evaluation as part of AutoML search and pipeline ranking #3499
- Added Dockerfile.arm and .dockerignore for python version and M1 testing #3609
- Added test_gen_utils::in_container_arm64() fixture #3609
Fixes
- Fixed iterative graphs not appearing in documentation #3592
- Updated the load_diabetes() method to account for scikit-learn 1.1.1 changes to the dataset #3591
- Capped woodwork version at < 0.17.0 #3612
- Bump minimum scikit-optimize version to 0.9.0 :pr:`3614
- Invalid target data checks involving regression and unsupported data types now produce a different DataCheckMessageCode #3630
- Updated test_data_checks.py::test_data_checks_raises_value_errors_on_init - more lenient text check #3609
Changes
- Add pre-commit hooks for linting #3608
- Implemented a lower threshold and window size for the TimeSeriesRegularizer and DatetimeFormatDataCheck #3627
- Updated IDColumnsDataCheck to return an action to set the first column as the primary key if it is identified as an ID column #3634
Documentation Changes
Testing Changes
- Pinned GraphViz version for Windows CI Test #3596
- Removed skipping of PolynomialDecomposer tests for Python 3.9 envs. #3720
- Removed pytest.mark.skip_if_39 pytest marker #3602 #3607
- Updated pytest==7.1.2 #3609
- Added Dockerfile.arm and .dockerignore for python version and M1 testing #3609
- Added test_gen_utils::in_container_arm64() fixture #3609

Warning

Breaking Changes

Refactored test cases that iterate over all components to use pytest.mark.parametrise and changed the corresponding if...continue blocks to pytest.mark.xfail #3622

v0.54.0 June. 23, 2022

Fixes
- Updated the Imputer and SimpleImputer to work with scikit-learn 1.1.1. #3525
- Bumped the minimum versions of scikit-learn to 1.1.1 and imbalanced-learn to 0.9.1. #3525
- Added a clearer error message when describe is called on an un-instantiated ComponentGraph #3569
- Added a clearer error message when time series’ predict is called with its X_train or y_train parameter set as None #3579
Changes
- Don’t pass time_index as kwargs to sktime ARIMA implementation for compatibility with latest version #3564
- Remove incompatible nlp-primitives version 2.6.0 from accepted dependency versions #3572, #3574
- Updated evalml authors #3581
Documentation Changes
- Fix typo in long_description field in setup.cfg #3553
- Update install page to remove Python 3.7 mention #3567

v0.53.1 June. 9, 2022

Changes
- Set the development status to 4 - Beta in setup.cfg #3550

v0.53.0 June. 9, 2022

Enhancements
- Pass n_jobs to default algorithm #3548
Fixes
- Fixed github workflows for featuretools and woodwork to test their main branch against evalml. #3517
- Supress warnings in TargetEncoder raised by a coming change to default parameters #3540
- Fixed bug where schema was not being preserved in column renaming for XGBoost and LightGBM models #3496
Changes
- Transitioned to use pyproject.toml and setup.cfg away from setup.py #3494, #3536
Documentation Changes
- Updated the Time Series User Guide page to include known-in-advance features and fix typos #3521
- Add slack and stackoverflow icon to footer #3528
- Add install instructions for M1 Mac #3543
Testing Changes
- Rename yml to yaml for GitHub Actions #3522
- Remove noncore_dependency pytest marker #3541
- Changed test_smotenc_category_features to use valid postal code values in response to new woodwork type validation #3544

v0.52.0 May. 12, 2022

Changes
- Added github workflows for featuretools and woodwork to test their main branch against evalml. #3504
- Added pmdarima to conda recipe. #3505
- Added a threshold for NullDataCheck before a warning is issued for null values #3507
- Changed NoVarianceDataCheck to only output warnings #3506
- Reverted XGBoost Classifier/Regressor patch for all boolean columns needing to be converted to int. #3503
- Updated roc_curve() and conf_matrix() to work with IntegerNullable and BooleanNullable types. #3465
- Changed ComponentGraph._transform_features to raise a PipelineError instead of a ValueError. This is not a breaking change because PipelineError is a subclass of ValueError. #3497
- Capped sklearn at version 1.1.0 #3518
Documentation Changes
- Updated to install prophet extras in Read the Docs. #3509
Testing Changes
- Moved vowpal wabbit in test recipe to evalml package from evalml-core #3502

v0.51.0 Apr. 28, 2022

Enhancements
- Updated make_pipeline_from_data_check_output to work with time series problems. #3454
Fixes
- Changed PipelineBase.graph_json() to return a python dictionary and renamed as graph_dict()#3463
Changes
- Added vowpalwabbit to local recipe and remove is_using_conda pytest skip markers from relevant tests #3481
Documentation Changes
- Fixed broken link in contributing guide #3464
- Improved development instructions #3468
- Added the TimeSeriesRegularizer and TimeSeriesImputer to the timeseries section of the User Guide #3473
- Updated OSS slack link #3487
- Fix rendering of model understanding plotly charts in docs #3460
Testing Changes
- Updated unit tests to support woodwork 0.16.2 #3482
- Fix some unit tests after vowpal wabbit got added to conda recipe #3486

Warning

Breaking Changes

Renamed PipelineBase.graph_json() to PipelineBase.graph_dict() #3463
Minimum supported woodwork version is now 0.16.2 #3482

v0.50.0 Apr. 12, 2022

Enhancements
- Added TimeSeriesImputer component #3374
- Replaced pipeline_parameters and custom_hyperparameters with search_parameters in AutoMLSearch #3373, #3427
- Added TimeSeriesRegularizer to smooth uninferrable date ranges for time series problems #3376
- Enabled ensembling as a parameter for DefaultAlgorithm #3435, #3444
Fixes
- Fix DefaultAlgorithm not handling Email and URL features #3419
- Added test to ensure LabelEncoder parameters preserved during AutoMLSearch #3326
Changes
- Updated DateTimeFormatDataCheck to use woodwork’s infer_frequency function #3425
- Renamed graphs.py to visualizations.py #3439
Documentation Changes
- Updated the model understanding section of the user guide to include missing functions #3446
- Rearranged the user guide model understanding page for easier navigation #3457
- Update README text to Alteryx #3462

Warning

Breaking Changes

Renamed graphs.py to visualizations.py #3439
Replaced pipeline_parameters and custom_hyperparameters with search_parameters in AutoMLSearch #3373

v0.49.0 Mar. 31, 2022

Enhancements
- Added use_covariates parameter to ARIMARegressor #3407
- AutoMLSearch will set use_covariates to False for ARIMA when dataset is large #3407
- Add ability to retrieve logical types to a component in the graph via get_component_input_logical_types #3428
- Add ability to get logical types passed to the last component via last_component_input_logical_types #3428
Fixes
- Fix conda build after PR 3407 #3429
Changes
- Moved model understanding metrics from graph.py into a separate file #3417
- Unpin click dependency #3420
- For IterativeAlgorithm, put time series algorithms first #3407
- Use prophet-prebuilt to install prophet in extras #3407

Warning

Breaking Changes

Moved model understanding metrics from graph.py to metrics.py #3417

v0.48.0 Mar. 25, 2022

Enhancements
- Add support for oversampling in time series classification problems #3387
Fixes
- Fixed TimeSeriesFeaturizer to make it deterministic when creating and choosing columns #3384
- Fixed bug where Email/URL features with missing values would cause the imputer to error out #3388
Changes
- Update maintainers to add Frank #3382
- Allow woodwork version 0.14.0 to be installed #3381
- Moved partial dependence functions from graph.py to a separate file #3404
- Pin click at 8.0.4 due to incompatibility with black #3413
Documentation Changes
- Added automl user guide section covering search algorithms #3394
- Updated broken links and automated broken link detection #3398
- Upgraded nbconvert #3402, #3411
Testing Changes
- Updated scheduled workflows to only run on Alteryx owned repos (#3395)
- Exclude documentation versions other than latest from broken link check #3401

Warning

Breaking Changes

Moved partial dependence functions from graph.py to partial_dependence.py #3404

v0.47.0 Mar. 16, 2022

Enhancements
- Added TimeSeriesFeaturizer into ARIMA-based pipelines #3313
- Added caching capability for ensemble training during AutoMLSearch #3257
- Added new error code for zero unique values in NoVarianceDataCheck #3372
Fixes
- Fixed get_pipelines to reset pipeline threshold for binary cases #3360
Changes
- Update maintainers #3365
- Revert pandas 1.3.0 compatibility patch #3378
Documentation Changes
- Fixed documentation links to point to correct pages #3358
Testing Changes
- Checkout main branch in build_conda_pkg job #3375

v0.46.0 Mar. 03, 2022

Enhancements
- Added test_size parameter to ClassImbalanceDataCheck #3341
- Make target optional for NoVarianceDataCheck #3339
Changes
- Removed python_version<3.9 environment marker from sktime dependency #3332
- Updated DatetimeFormatDataCheck to return all messages and not return early if NaNs are detected #3354
Documentation Changes
- Added in-line tabs and copy-paste functionality to documentation, overhauled Install page #3353

v0.45.0 Feb. 17, 2022

Enhancements
- Added support for pandas >= 1.4.0 #3324
- Standardized feature importance for estimators #3305
- Replaced usage of private method with Woodwork’s public get_subset_schema method #3325
Changes
- Added an is_cv property to the datasplitters used #3297
- Changed SimpleImputer to ignore Natural Language columns #3324
- Added drop NaN component to some time series pipelines #3310
Documentation Changes
- Update README.md with Alteryx link (#3319)
- Added formatting to the AutoML user guide to shorten result outputs #3328
Testing Changes
- Add auto approve dependency workflow schedule for every 30 mins #3312

v0.44.0 Feb. 04, 2022

Enhancements
- Updated DefaultAlgorithm to also limit estimator usage for long-running multiclass problems #3099
- Added make_pipeline_from_data_check_output() utility method #3277
- Updated AutoMLSearch to use DefaultAlgorithm as the default automl algorithm #3261, #3304
- Added more specific data check errors to DatetimeFormatDataCheck #3288
- Added features as a parameter for AutoMLSearch and add DFSTransformer to pipelines when features are present #3309
Fixes
- Updated the binary classification pipeline’s optimize_thresholds method to use Nelder-Mead #3280
- Fixed bug where feature importance on time series pipelines only showed 0 for time index #3285
Changes
- Removed DateTimeNaNDataCheck and NaturalLanguageNaNDataCheck in favor of NullDataCheck #3260
- Drop support for Python 3.7 #3291
- Updated minimum version of woodwork to v0.12.0 #3290
Documentation Changes
- Update documentation and docstring for validate_holdout_datasets for time series problems #3278
- Fixed mistake in documentation where wrong objective was used for calculating percent-better-than-baseline #3285

Warning

Breaking Changes

Removed DateTimeNaNDataCheck and NaturalLanguageNaNDataCheck in favor of NullDataCheck #3260
Dropped support for Python 3.7 #3291

v0.43.0 Jan. 25, 2022

Enhancements
- Updated new NullDataCheck to return a warning and suggest an action to impute columns with null values #3197
- Updated make_pipeline_from_actions to handle null column imputation #3237
- Updated data check actions API to return options instead of actions and add functionality to suggest and take action on columns with null values #3182
Fixes
- Fixed categorical data leaking into non-categorical sub-pipelines in DefaultAlgorithm #3209
- Fixed Python 3.9 installation for prophet by updating pmdarima version in requirements #3268
- Allowed DateTime columns to pass through PerColumnImputer without breaking #3267
Changes
- Updated DataCheck validate() output to return a dictionary instead of list for actions #3142
- Updated DataCheck validate() API to use the new DataCheckActionOption class instead of DataCheckAction #3152
- Uncapped numba version and removed it from requirements #3263
- Renamed HighlyNullDataCheck to NullDataCheck #3197
- Updated data check validate() output to return a list of warnings and errors instead of a dictionary #3244
- Capped pandas at < 1.4.0 #3274
Testing Changes
- Bumped minimum IPython version to 7.16.3 in test-requirements.txt based on dependabot feedback #3269

Warning

Breaking Changes

Renamed HighlyNullDataCheck to NullDataCheck #3197
Updated data check validate() output to return a list of warnings and errors instead of a dictionary. See the Data Check or Data Check Actions pages (under User Guide) for examples. #3244
Removed impute_all and default_impute_strategy parameters from the PerColumnImputer #3267
Updated PerColumnImputer such that columns not specified in impute_strategies dict will not be imputed anymore #3267

v0.42.0 Jan. 18, 2022

Enhancements
- Required the separation of training and test data by gap + 1 units to be verified by time_index for time series problems #3208
- Added support for boolean features for ARIMARegressor #3187
- Updated dependency bot workflow to remove outdated description and add new configuration to delete branches automatically #3212
- Added n_obs and n_splits to TimeSeriesParametersDataCheck error details #3246
Fixes
- Fixed classification pipelines to only accept target data with the appropriate number of classes #3185
- Added support for time series in DefaultAlgorithm #3177
- Standardized names of featurization components #3192
- Removed empty cell in text_input.ipynb #3234
- Removed potential prediction explanations failure when pipelines predicted a class with probability 1 #3221
- Dropped NaNs before partial dependence grid generation #3235
- Allowed prediction explanations to be json-serializable #3262
- Fixed bug where InvalidTargetDataCheck would not check time series regression targets #3251
- Fixed bug in are_datasets_separated_by_gap_time_index #3256
Changes
- Raised lowest compatible numpy version to 1.21.0 to address security concerns #3207
- Changed the default objective to MedianAE from R2 for time series regression #3205
- Removed all-nan Unknown to Double logical conversion in infer_feature_types #3196
- Checking the validity of holdout data for time series problems can be performed by calling pipelines.utils.validate_holdout_datasets prior to calling predict #3208
Testing Changes
- Update auto approve workflow trigger and delete branch after merge #3265

Warning

Breaking Changes

Renamed DateTime Featurizer Component to DateTime Featurizer and Natural Language Featurization Component to Natural Language Featurizer #3192

v0.41.0 Jan. 06, 2022

Enhancements
- Added string support for DataCheckActionCode #3167
- Added DataCheckActionOption class #3134
- Add issue templates for bugs, feature requests and documentation improvements for GitHub #3199
Fixes
- Fix bug where prediction explanations class_name was shown as float for boolean targets #3179
- Fixed bug in nightly linux tests #3189
Changes
- Removed usage of scikit-learn’s LabelEncoder in favor of ours #3161
- Removed nullable types checking from infer_feature_types #3156
- Fixed mean_cv_data and validation_score values in AutoMLSearch.rankings to reflect cv score or NaN when appropriate #3162
Testing Changes
- Updated tests to use new pipeline API instead of defining custom pipeline classes #3172
- Add workflow to auto-merge dependency PRs if status checks pass #3184

v0.40.0 Dec. 22, 2021

Enhancements
- Added TimeSeriesSplittingDataCheck to DefaultDataChecks to verify adequate class representation in time series classification problems #3141
- Added the ability to accept serialized features and skip computation in DFSTransformer #3106
- Added support for known-in-advance features #3149
- Added Holt-Winters ExponentialSmoothingRegressor for time series regression problems #3157
- Required the separation of training and test data by gap + 1 units to be verified by time_index for time series problems #3160
Fixes
- Fixed error caused when tuning threshold for time series binary classification #3140
Changes
- TimeSeriesParametersDataCheck was added to DefaultDataChecks for time series problems #3139
- Renamed date_index to time_index in problem_configuration for time series problems #3137
- Updated nlp-primitives minimum version to 2.1.0 #3166
- Updated minimum version of woodwork to v0.11.0 #3171
- Revert 3160 until uninferrable frequency can be addressed earlier in the process #3198
Documentation Changes
- Added comments to provide clarity on doctests #3155
Testing Changes
- Parameterized tests in test_datasets.py #3145

Warning

Breaking Changes

Renamed date_index to time_index in problem_configuration for time series problems #3137

v0.39.0 Dec. 9, 2021

Enhancements
- Renamed DelayedFeatureTransformer to TimeSeriesFeaturizer and enhanced it to compute rolling features #3028
- Added ability to impute only specific columns in PerColumnImputer #3123
- Added TimeSeriesParametersDataCheck to verify the time series parameters are valid given the number of splits in cross validation #3111
Fixes
- Default parameters for RFRegressorSelectFromModel and RFClassifierSelectFromModel has been fixed to avoid selecting all features #3110
Changes
- Removed reliance on a datetime index for ARIMARegressor and ProphetRegressor #3104
- Included target leakage check when fitting ARIMARegressor to account for the lack of TimeSeriesFeaturizer in ARIMARegressor based pipelines #3104
- Cleaned up and refactored InvalidTargetDataCheck implementation and docstring #3122
- Removed indices information from the output of HighlyNullDataCheck’s validate() method #3092
- Added ReplaceNullableTypes component to prepare for handling pandas nullable types. #3090
- Updated make_pipeline for handling pandas nullable types in preprocessing pipeline. #3129
- Removed unused EnsembleMissingPipelinesError exception definition #3131
Testing Changes
- Refactored tests to avoid using importorskip #3126
- Added skip_during_conda test marker to skip tests that are not supposed to run during conda build #3127
- Added skip_if_39 test marker to skip tests that are not supposed to run during python 3.9 #3133

Warning

Breaking Changes

Renamed DelayedFeatureTransformer to TimeSeriesFeaturizer #3028
ProphetRegressor now requires a datetime column in X represented by the date_index parameter #3104
Renamed module evalml.data_checks.invalid_target_data_check to evalml.data_checks.invalid_targets_data_check #3122
Removed unused EnsembleMissingPipelinesError exception definition #3131

v0.38.0 Nov. 27, 2021

Enhancements
- Added data_check_name attribute to the data check action class #3034
- Added NumWords and NumCharacters primitives to TextFeaturizer and renamed TextFeaturizer` to ``NaturalLanguageFeaturizer #3030
- Added support for scikit-learn > 1.0.0 #3051
- Required the date_index parameter to be specified for time series problems in AutoMLSearch #3041
- Allowed time series pipelines to predict on test datasets whose length is less than or equal to the forecast_horizon. Also allowed the test set index to start at 0. #3071
- Enabled time series pipeline to predict on data with features that are not known-in-advanced #3094
Fixes
- Added in error message when fit and predict/predict_proba data types are different #3036
- Fixed bug where ensembling components could not get converted to JSON format #3049
- Fixed bug where components with tuned integer hyperparameters could not get converted to JSON format #3049
- Fixed bug where force plots were not displaying correct feature values #3044
- Included confusion matrix at the pipeline threshold for find_confusion_matrix_per_threshold #3080
- Fixed bug where One Hot Encoder would error out if a non-categorical feature had a missing value #3083
- Fixed bug where features created from categorical columns by Delayed Feature Transformer would be inferred as categorical #3083
Changes
- Delete predict_uses_y estimator attribute #3069
- Change DateTimeFeaturizer to use corresponding Featuretools primitives #3081
- Updated TargetDistributionDataCheck to return metadata details as floats rather strings #3085
- Removed dependency on psutil package #3093
Documentation Changes
- Updated docs to use data check action methods rather than manually cleaning data #3050
Testing Changes
- Updated integration tests to use make_pipeline_from_actions instead of private method #3047

Warning

Breaking Changes

Added data_check_name attribute to the data check action class #3034
Renamed TextFeaturizer` to ``NaturalLanguageFeaturizer #3030
Updated the Pipeline.graph_json function to return a dictionary of “from” and “to” edges instead of tuples #3049
Delete predict_uses_y estimator attribute #3069
Changed time series problems in AutoMLSearch to need a not-None date_index #3041
Changed the DelayedFeatureTransformer to throw a ValueError during fit if the date_index is None #3041
Passing X=None to DelayedFeatureTransformer is deprecated #3041

v0.37.0 Nov. 9, 2021

Enhancements
- Added find_confusion_matrix_per_threshold to Model Understanding #2972
- Limit computationally-intensive models during AutoMLSearch for certain multiclass problems, allow for opt-in with parameter allow_long_running_models #2982
- Added support for stacked ensemble pipelines to prediction explanations module #2971
- Added integration tests for data checks and data checks actions workflow #2883
- Added a change in pipeline structure to handle categorical columns separately for pipelines in DefaultAlgorithm #2986
- Added an algorithm to DelayedFeatureTransformer to select better lags #3005
- Added test to ensure pickling pipelines preserves thresholds #3027
- Added AutoML function to access ensemble pipeline’s input pipelines IDs #3011
- Added ability to define which class is “positive” for label encoder in binary classification case #3033
Fixes
- Fixed bug where Oversampler didn’t consider boolean columns to be categorical #2980
- Fixed permutation importance failing when target is categorical #3017
- Updated estimator and pipelines’ predict, predict_proba, transform, inverse_transform methods to preserve input indices #2979
- Updated demo dataset link for daily min temperatures #3023
Changes
- Updated OutliersDataCheck and UniquenessDataCheck and allow for the suspension of the Nullable types error #3018
Documentation Changes
- Fixed cost benefit matrix demo formatting #2990
- Update ReadMe.md with new badge links and updated installation instructions for conda #2998
- Added more comprehensive doctests #3002

v0.36.0 Oct. 27, 2021

Enhancements
- Added LIME as an algorithm option for explain_predictions and explain_predictions_best_worst #2905
- Standardized data check messages and added default “rows” and “columns” to data check message details dictionary #2869
- Added rows_of_interest to pipeline utils #2908
- Added support for woodwork version 0.8.2 #2909
- Enhanced the DateTimeFeaturizer to handle NaNs in date features #2909
- Added support for woodwork logical types PostalCode, SubRegionCode, and CountryCode in model understanding tools #2946
- Added Vowpal Wabbit regressor and classifiers #2846
- Added NoSplit data splitter for future unsupervised learning searches #2958
- Added method to convert actions into a preprocessing pipeline #2968
Fixes
- Fixed bug where partial dependence was not respecting the ww schema #2929
- Fixed calculate_permutation_importance for datetimes on StandardScaler #2938
- Fixed SelectColumns to only select available features for feature selection in DefaultAlgorithm #2944
- Fixed DropColumns component not receiving parameters in DefaultAlgorithm #2945
- Fixed bug where trained binary thresholds were not being returned by get_pipeline or clone #2948
- Fixed bug where Oversampler selected ww logical categorical instead of ww semantic category #2946
Changes
- Changed make_pipeline function to place the DateTimeFeaturizer prior to the Imputer so that NaN dates can be imputed #2909
- Refactored OutliersDataCheck and HighlyNullDataCheck to add more descriptive metadata #2907
- Bumped minimum version of dask from 2021.2.0 to 2021.10.0 #2978
Documentation Changes
- Added back Future Release section to release notes #2927
- Updated CI to run doctest (docstring tests) and apply necessary fixes to docstrings #2933
- Added documentation for BinaryClassificationPipeline thresholding #2937
Testing Changes
- Fixed dependency checker to catch full names of packages #2930
- Refactored build_conda_pkg to work from a local recipe #2925
- Refactored component test for different environments #2957

Warning

Breaking Changes

Standardized data check messages and added default “rows” and “columns” to data check message details dictionary. This may change the number of messages returned from a data check. #2869

v0.35.0 Oct. 14, 2021

Enhancements
- Added human-readable pipeline explanations to model understanding #2861
- Updated to support Featuretools 1.0.0 and nlp-primitives 2.0.0 #2848
Fixes
- Fixed bug where long mode for the top level search method was not respected #2875
- Pinned cmdstan to 0.28.0 in cmdstan-builder to prevent future breaking of support for Prophet #2880
- Added Jarque-Bera to the TargetDistributionDataCheck #2891
Changes
- Updated pipelines to use a label encoder component instead of doing encoding on the pipeline level #2821
- Deleted scikit-learn ensembler #2819
- Refactored pipeline building logic out of AutoMLSearch and into IterativeAlgorithm #2854
- Refactored names for methods in ComponentGraph and PipelineBase #2902
Documentation Changes
- Updated install.ipynb to reflect flexibility for cmdstan version installation #2880
- Updated the conda section of our contributing guide #2899
Testing Changes
- Updated test_all_estimators to account for Prophet being allowed for Python 3.9 #2892
- Updated linux tests to use cmdstan-builder==0.0.8 #2880

Warning

Breaking Changes

Updated pipelines to use a label encoder component instead of doing encoding on the pipeline level. This means that pipelines will no longer automatically encode non-numerical targets. Please use a label encoder if working with classification problems and non-numeric targets. #2821
Deleted scikit-learn ensembler #2819
IterativeAlgorithm now requires X, y, problem_type as required arguments as well as sampler_name, allowed_model_families, allowed_component_graphs, max_batches, and verbose as optional arguments #2854
Changed method names of fit_features and compute_final_component_features to fit_and_transform_all_but_final and transform_all_but_final in ComponentGraph, and compute_estimator_features to transform_all_but_final in pipeline classes #2902

v0.34.0 Sep. 30, 2021

Enhancements
- Updated to work with Woodwork 0.8.1 #2783
- Added validation that training_data and training_target are not None in prediction explanations #2787
- Added support for training-only components in pipelines and component graphs #2776
- Added default argument for the parameters value for ComponentGraph.instantiate #2796
- Added TIME_SERIES_REGRESSION to LightGBMRegressor's supported problem types #2793
- Provided a JSON representation of a pipeline’s DAG structure #2812
- Added validation to holdout data passed to predict and predict_proba for time series #2804
- Added information about which row indices are outliers in OutliersDataCheck #2818
- Added verbose flag to top level search() method #2813
- Added support for linting jupyter notebooks and clearing the executed cells and empty cells #2829 #2837
- Added “DROP_ROWS” action to output of OutliersDataCheck.validate() #2820
- Added the ability of AutoMLSearch to accept a SequentialEngine instance as engine input #2838
- Added new label encoder component to EvalML #2853
- Added our own partial dependence implementation #2834
Fixes
- Fixed bug where calculate_permutation_importance was not calculating the right value for pipelines with target transformers #2782
- Fixed bug where transformed target values were not used in fit for time series pipelines #2780
- Fixed bug where score_pipelines method of AutoMLSearch would not work for time series problems #2786
- Removed TargetTransformer class #2833
- Added tests to verify ComponentGraph support by pipelines #2830
- Fixed incorrect parameter for baseline regression pipeline in AutoMLSearch #2847
- Fixed bug where the desired estimator family order was not respected in IterativeAlgorithm #2850
Changes
- Changed woodwork initialization to use partial schemas #2774
- Made Transformer.transform() an abstract method #2744
- Deleted EmptyDataChecks class #2794
- Removed data check for checking log distributions in make_pipeline #2806
- Changed the minimum woodwork version to 0.8.0 #2783
- Pinned woodwork version to 0.8.0 #2832
- Removed model_family attribute from ComponentBase and transformers #2828
- Limited scikit-learn until new features and errors can be addressed #2842
- Show DeprecationWarning when Sklearn Ensemblers are called #2859
Testing Changes
- Updated matched assertion message regarding monotonic indices in polynomial detrender tests #2811
- Added a test to make sure pip versions match conda versions #2851

Warning

Breaking Changes

Made Transformer.transform() an abstract method #2744
Deleted EmptyDataChecks class #2794
Removed data check for checking log distributions in make_pipeline #2806

v0.33.0 Sep. 15, 2021

Fixes
- Fixed bug where warnings during make_pipeline were not being raised to the user #2765
Changes
- Refactored and removed SamplerBase class #2775
Documentation Changes
- Added docstring linting packages pydocstyle and darglint to make-lint command #2670

v0.32.1 Sep. 10, 2021

Enhancements
- Added verbose flag to AutoMLSearch to run search in silent mode by default #2645
- Added label encoder to XGBoostClassifier to remove the warning #2701
- Set eval_metric to logloss for XGBoostClassifier #2741
- Added support for woodwork versions 0.7.0 and 0.7.1 #2743
- Changed explain_predictions functions to display original feature values #2759
- Added X_train and y_train to graph_prediction_vs_actual_over_time and get_prediction_vs_actual_over_time_data #2762
- Added forecast_horizon as a required parameter to time series pipelines and AutoMLSearch #2697
- Added predict_in_sample and predict_proba_in_sample methods to time series pipelines to predict on data where the target is known, e.g. cross-validation #2697
Fixes
- Fixed bug where _catch_warnings assumed all warnings were PipelineNotUsed #2753
- Fixed bug where Imputer.transform would erase ww typing information prior to handing data to the SimpleImputer #2752
- Fixed bug where Oversampler could not be copied #2755
Changes
- Deleted drop_nan_target_rows utility method #2737
- Removed default logging setup and debugging log file #2645
- Changed the default n_jobs value for XGBoostClassifier and XGBoostRegressor to 12 #2757
- Changed TimeSeriesBaselineEstimator to only work on a time series pipeline with a DelayedFeaturesTransformer #2697
- Added X_train and y_train as optional parameters to pipeline predict, predict_proba. Only used for time series pipelines #2697
- Added training_data and training_target as optional parameters to explain_predictions and explain_predictions_best_worst to support time series pipelines #2697
- Changed time series pipeline predictions to no longer output series/dataframes padded with NaNs. A prediction will be returned for every row in the X input #2697
Documentation Changes
- Specified installation steps for Prophet #2713
- Added documentation for data exploration on data check actions #2696
- Added a user guide entry for time series modelling #2697
Testing Changes
- Fixed flaky TargetDistributionDataCheck test for very_lognormal distribution #2748

Warning

Breaking Changes

Removed default logging setup and debugging log file #2645
Added X_train and y_train to graph_prediction_vs_actual_over_time and get_prediction_vs_actual_over_time_data #2762
Added forecast_horizon as a required parameter to time series pipelines and AutoMLSearch #2697
Changed TimeSeriesBaselineEstimator to only work on a time series pipeline with a DelayedFeaturesTransformer #2697
Added X_train and y_train as required parameters for predict and predict_proba in time series pipelines #2697
Added training_data and training_target as required parameters to explain_predictions and explain_predictions_best_worst for time series pipelines #2697

v0.32.0 Aug. 31, 2021

Enhancements
- Allow string for engine parameter for AutoMLSearch#2667
- Add ProphetRegressor to AutoML #2619
- Integrated DefaultAlgorithm into AutoMLSearch #2634
- Removed SVM “linear” and “precomputed” kernel hyperparameter options, and improved default parameters #2651
- Updated ComponentGraph initalization to raise ValueError when user attempts to use .y for a component that does not produce a tuple output #2662
- Updated to support Woodwork 0.6.0 #2690
- Updated pipeline graph() to distingush X and y edges #2654
- Added DropRowsTransformer component #2692
- Added DROP_ROWS to _make_component_list_from_actions and clean up metadata #2694
- Add new ensembler component #2653
Fixes
- Updated Oversampler logic to select best SMOTE based on component input instead of pipeline input #2695
- Added ability to explicitly close DaskEngine resources to improve runtime and reduce Dask warnings #2667
- Fixed partial dependence bug for ensemble pipelines #2714
- Updated TargetLeakageDataCheck to maintain user-selected logical types #2711
Changes
- Replaced SMOTEOversampler, SMOTENOversampler and SMOTENCOversampler with consolidated Oversampler component #2695
- Removed LinearRegressor from the list of default AutoMLSearch estimators due to poor performance #2660
Documentation Changes
- Added user guide documentation for using ComponentGraph and added ComponentGraph to API reference #2673
- Updated documentation to make parallelization of AutoML clearer #2667
Testing Changes
- Removes the process-level parallelism from the test_cancel_job test #2666
- Installed numba 0.53 in windows CI to prevent problems installing version 0.54 #2710

Warning

Breaking Changes

Renamed the current top level search method to search_iterative and defined a new search method for the DefaultAlgorithm #2634
Replaced SMOTEOversampler, SMOTENOversampler and SMOTENCOversampler with consolidated Oversampler component #2695
Removed LinearRegressor from the list of default AutoMLSearch estimators due to poor performance #2660

v0.31.0 Aug. 19, 2021

Enhancements
- Updated the high variance check in AutoMLSearch to be robust to a variety of objectives and cv scores #2622
- Use Woodwork’s outlier detection for the OutliersDataCheck #2637
- Added ability to utilize instantiated components when creating a pipeline #2643
- Sped up the all Nan and unknown check in infer_feature_types #2661
Fixes
Changes
- Deleted _put_into_original_order helper function #2639
- Refactored time series pipeline code using a time series pipeline base class #2649
- Renamed dask_tests to parallel_tests #2657
- Removed commented out code in pipeline_meta.py #2659
Documentation Changes
- Add complete install command to README and Install section #2627
- Cleaned up documentation for MulticollinearityDataCheck #2664
Testing Changes
- Speed up CI by splitting Prophet tests into a separate workflow in GitHub #2644

Warning

Breaking Changes

TimeSeriesRegressionPipeline no longer inherits from TimeSeriesRegressionPipeline #2649

v0.30.2 Aug. 16, 2021

Fixes
- Updated changelog and version numbers to match the release. Release 0.30.1 was release erroneously without a change to the version numbers. 0.30.2 replaces it.

v0.30.1 Aug. 12, 2021

Enhancements
- Added DatetimeFormatDataCheck for time series problems #2603
- Added ProphetRegressor to estimators #2242
- Updated ComponentGraph to handle not calling samplers’ transform during predict, and updated samplers’ transform methods s.t. fit_transform is equivalent to fit(X, y).transform(X, y) #2583
- Updated ComponentGraph _validate_component_dict logic to be stricter about input values #2599
- Patched bug in xgboost estimators where predicting on a feature matrix of only booleans would throw an exception. #2602
- Updated ARIMARegressor to use relative forecasting to predict values #2613
- Added support for creating pipelines without an estimator as the final component and added transform(X, y) method to pipelines and component graphs #2625
- Updated to support Woodwork 0.5.1 #2610
Fixes
- Updated AutoMLSearch to drop ARIMARegressor from allowed_estimators if an incompatible frequency is detected #2632
- Updated get_best_sampler_for_data to consider all non-numeric datatypes as categorical for SMOTE #2590
- Fixed inconsistent test results from TargetDistributionDataCheck #2608
- Adopted vectorized pd.NA checking for Woodwork 0.5.1 support #2626
- Pinned upper version of astroid to 2.6.6 to keep ReadTheDocs working. #2638
Changes
- Renamed SMOTE samplers to SMOTE oversampler #2595
- Changed partial_dependence and graph_partial_dependence to raise a PartialDependenceError instead of ValueError. This is not a breaking change because PartialDependenceError is a subclass of ValueError #2604
- Cleaned up code duplication in ComponentGraph #2612
- Stored predict_proba results in .x for intermediate estimators in ComponentGraph #2629
Documentation Changes
- To avoid local docs build error, only add warning disable and download headers on ReadTheDocs builds, not locally #2617
Testing Changes
- Updated partial_dependence tests to change the element-wise comparison per the Plotly 5.2.1 upgrade #2638
- Changed the lint CI job to only check against python 3.9 via the -t flag #2586
- Installed Prophet in linux nightlies test and fixed test_all_components #2598
- Refactored and fixed all make_pipeline tests to assert correct order and address new Woodwork Unknown type inference #2572
- Removed component_graphs as a global variable in test_component_graphs.py #2609

Warning

Breaking Changes

Renamed SMOTE samplers to SMOTE oversampler. Please use SMOTEOversampler, SMOTENCOversampler, SMOTENOversampler instead of SMOTESampler, SMOTENCSampler, and SMOTENSampler #2595

v0.30.0 Aug. 3, 2021

Enhancements
- Added LogTransformer and TargetDistributionDataCheck #2487
- Issue a warning to users when a pipeline parameter passed in isn’t used in the pipeline #2564
- Added Gini coefficient as an objective #2544
- Added repr to ComponentGraph #2565
- Added components to extract features from URL and EmailAddress Logical Types #2550
- Added support for NaN values in TextFeaturizer #2532
- Added SelectByType transformer #2531
- Added separate thresholds for percent null rows and columns in HighlyNullDataCheck #2562
- Added support for NaN natural language values #2577
Fixes
- Raised error message for types URL, NaturalLanguage, and EmailAddress in partial_dependence #2573
Changes
- Updated PipelineBase implementation for creating pipelines from a list of components #2549
- Moved get_hyperparameter_ranges to PipelineBase class from automl/utils module #2546
- Renamed ComponentGraph’s get_parents to get_inputs #2540
- Removed ComponentGraph.linearized_component_graph and ComponentGraph.from_list #2556
- Updated ComponentGraph to enforce requiring .x and .y inputs for each component in the graph #2563
- Renamed existing ensembler implementation from StackedEnsemblers to SklearnStackedEnsemblers #2578
Documentation Changes
- Added documentation for DaskEngine and CFEngine parallel engines #2560
- Improved detail of TextFeaturizer docstring and tutorial #2568
Testing Changes
- Added test that makes sure split_data does not shuffle for time series problems #2552

Warning

Breaking Changes

Moved get_hyperparameter_ranges to PipelineBase class from automl/utils module #2546
Renamed ComponentGraph’s get_parents to get_inputs #2540
Removed ComponentGraph.linearized_component_graph and ComponentGraph.from_list #2556
Updated ComponentGraph to enforce requiring .x and .y inputs for each component in the graph #2563

v0.29.0 Jul. 21, 2021

Enhancements
- Updated 1-way partial dependence support for datetime features #2454
- Added details on how to fix error caused by broken ww schema #2466
- Added ability to use built-in pickle for saving AutoMLSearch #2463
- Updated our components and component graphs to use latest features of ww 0.4.1, e.g. concat_columns and drop in-place. #2465
- Added new, concurrent.futures based engine for parallel AutoML #2506
- Added support for new Woodwork Unknown type in AutoMLSearch #2477
- Updated our components with an attribute that describes if they modify features or targets and can be used in list API for pipeline initialization #2504
- Updated ComponentGraph to accept X and y as inputs #2507
- Removed unused TARGET_BINARY_INVALID_VALUES from DataCheckMessageCode enum and fixed formatting of objective documentation #2520
- Added EvalMLAlgorithm #2525
- Added support for NaN values in TextFeaturizer #2532
Fixes
- Fixed FraudCost objective and reverted threshold optimization method for binary classification to Golden #2450
- Added custom exception message for partial dependence on features with scales that are too small #2455
- Ensures the typing for Ordinal and Datetime ltypes are passed through _retain_custom_types_and_initalize_woodwork #2461
- Updated to work with Pandas 1.3.0 #2442
- Updated to work with sktime 0.7.0 #2499
Changes
- Updated XGBoost dependency to >=1.4.2 #2484, #2498
- Added a DeprecationWarning about deprecating the list API for ComponentGraph #2488
- Updated make_pipeline for AutoML to create dictionaries, not lists, to initialize pipelines #2504
- No longer installing graphviz on windows in our CI pipelines because release 0.17 breaks windows 3.7 #2516
Documentation Changes
- Moved docstrings from __init__ to class pages, added missing docstrings for missing classes, and updated missing default values #2452
- Build documentation with sphinx-autoapi #2458
- Change autoapi_ignore to only ignore files in evalml/tests/* #2530
Testing Changes
- Fixed flaky dask tests #2471
- Removed shellcheck action from build_conda_pkg action #2514
- Added a tmp_dir fixture that deletes its contents after tests run #2505
- Added a test that makes sure all pipelines in AutoMLSearch get the same data splits #2513
- Condensed warning output in test logs #2521

Warning

Breaking Changes

NaN values in the Natural Language type are no longer supported by the Imputer with the pandas upgrade. #2477

v0.28.0 Jul. 2, 2021

Enhancements
- Added support for showing a Individual Conditional Expectations plot when graphing Partial Dependence #2386
- Exposed thread_count for Catboost estimators as n_jobs parameter #2410
- Updated Objectives API to allow for sample weighting #2433
Fixes
- Deleted unreachable line from IterativeAlgorithm #2464
Changes
- Pinned Woodwork version between 0.4.1 and 0.4.2 #2460
- Updated psutils minimum version in requirements #2438
- Updated log_error_callback to not include filepath in logged message #2429
Documentation Changes
- Sped up docs #2430
- Removed mentions of DataTable and DataColumn from the docs #2445
Testing Changes
- Added slack integration for nightlies tests #2436
- Changed build_conda_pkg CI job to run only when dependencies are updates #2446
- Updated workflows to store pytest runtimes as test artifacts #2448
- Added AutoMLTestEnv test fixture for making it easy to mock automl tests #2406

v0.27.0 Jun. 22, 2021

Enhancements
- Adds force plots for prediction explanations #2157
- Removed self-reference from AutoMLSearch #2304
- Added support for nonlinear pipelines for generate_pipeline_code #2332
- Added inverse_transform method to pipelines #2256
- Add optional automatic update checker #2350
- Added search_order to AutoMLSearch’s rankings and full_rankings tables #2345
- Updated threshold optimization method for binary classification #2315
- Updated demos to pull data from S3 instead of including demo data in package #2387
- Upgrade woodwork version to v0.4.1 #2379
Fixes
- Preserve user-specified woodwork types throughout pipeline fit/predict #2297
- Fixed ComponentGraph appending target to final_component_features if there is a component that returns both X and y #2358
- Fixed partial dependence graph method failing on multiclass problems when the class labels are numeric #2372
- Added thresholding_objective argument to AutoMLSearch for binary classification problems #2320
- Added change for k_neighbors parameter in SMOTE Oversamplers to automatically handle small samples #2375
- Changed naming for Logistic Regression Classifier file #2399
- Pinned pytest-timeout to fix minimum dependence checker #2425
- Replaced Elastic Net Classifier base class with Logistsic Regression to avoid NaN outputs #2420
Changes
- Cleaned up PipelineBase’s component_graph and _component_graph attributes. Updated PipelineBase __repr__ and added __eq__ for ComponentGraph #2332
- Added and applied black linting package to the EvalML repo in place of autopep8 #2306
- Separated custom_hyperparameters from pipelines and added them as an argument to AutoMLSearch #2317
- Replaced allowed_pipelines with allowed_component_graphs #2364
- Removed private method _compute_features_during_fit from PipelineBase #2359
- Updated compute_order in ComponentGraph to be a read-only property #2408
- Unpinned PyZMQ version in requirements.txt #2389
- Uncapping LightGBM version in requirements.txt #2405
- Updated minimum version of plotly #2415
- Removed SensitivityLowAlert objective from core objectives #2418
Documentation Changes
- Fixed lead scoring weights in the demos documentation #2315
- Fixed start page code and description dataset naming discrepancy #2370
Testing Changes
- Update minimum unit tests to run on all pull requests #2314
- Pass token to authorize uploading of codecov reports #2344
- Add pytest-timeout. All tests that run longer than 6 minutes will fail. #2374
- Separated the dask tests out into separate github action jobs to isolate dask failures. #2376
- Refactored dask tests #2377
- Added the combined dask/non-dask unit tests back and renamed the dask only unit tests. #2382
- Sped up unit tests and split into separate jobs #2365
- Change CI job names, run lint for python 3.9, run nightlies on python 3.8 at 3am EST #2395 #2398
- Set fail-fast to false for CI jobs that run for PRs #2402

Warning

Breaking Changes

AutoMLSearch will accept allowed_component_graphs instead of allowed_pipelines #2364
Removed PipelineBase’s _component_graph attribute. Updated PipelineBase __repr__ and added __eq__ for ComponentGraph #2332
pipeline_parameters will no longer accept skopt.space variables since hyperparameter ranges will now be specified through custom_hyperparameters #2317

v0.25.0 Jun. 01, 2021

Enhancements
- Upgraded minimum woodwork to version 0.3.1. Previous versions will not be supported #2181
- Added a new callback parameter for explain_predictions_best_worst #2308
Fixes
Changes
- Deleted the return_pandas flag from our demo data loaders #2181
- Moved default_parameters to ComponentGraph from PipelineBase #2307
Documentation Changes
- Updated the release procedure documentation #2230
Testing Changes
- Ignoring test_saving_png_file while building conda package #2323

Warning

Breaking Changes

Deleted the return_pandas flag from our demo data loaders #2181
Upgraded minimum woodwork to version 0.3.1. Previous versions will not be supported #2181
Due to the weak-ref in woodwork, set the result of infer_feature_types to a variable before accessing woodwork #2181

v0.24.2 May. 24, 2021

Enhancements
- Added oversamplers to AutoMLSearch #2213 #2286
- Added dictionary input functionality for Undersampler component #2271
- Changed the default parameter values for Elastic Net Classifier and Elastic Net Regressor #2269
- Added dictionary input functionality for the Oversampler components #2288
Fixes
- Set default n_jobs to 1 for StackedEnsembleClassifier and StackedEnsembleRegressor until fix for text-based parallelism in sklearn stacking can be found #2295
Changes
- Updated start_iteration_callback to accept a pipeline instance instead of a pipeline class and no longer accept pipeline parameters as a parameter #2290
- Refactored calculate_permutation_importance method and add per-column permutation importance method #2302
- Updated logging information in AutoMLSearch.__init__ to clarify pipeline generation #2263
Documentation Changes
- Minor changes to the release procedure #2230
Testing Changes
- Use codecov action to update coverage reports #2238
- Removed MarkupSafe dependency version pin from requirements.txt and moved instead into RTD docs build CI #2261

Warning

Breaking Changes

Updated start_iteration_callback to accept a pipeline instance instead of a pipeline class and no longer accept pipeline parameters as a parameter #2290
Moved default_parameters to ComponentGraph from PipelineBase. A pipeline’s default_parameters is now accessible via pipeline.component_graph.default_parameters #2307

v0.24.1 May. 16, 2021

Enhancements
- Integrated ARIMARegressor into AutoML #2009
- Updated HighlyNullDataCheck to also perform a null row check #2222
- Set max_depth to 1 in calls to featuretools dfs #2231
Fixes
- Removed data splitter sampler calls during training #2253
- Set minimum required version for for pyzmq, colorama, and docutils #2254
- Changed BaseSampler to return None instead of y #2272
Changes
- Removed ensemble split and indices in AutoMLSearch #2260
- Updated pipeline repr() and generate_pipeline_code to return pipeline instances without generating custom pipeline class #2227
Documentation Changes
- Capped Sphinx version under 4.0.0 #2244
Testing Changes
- Change number of cores for pytest from 4 to 2 #2266
- Add minimum dependency checker to generate minimum requirement files #2267
- Add unit tests with minimum dependencies #2277

v0.24.0 May. 04, 2021

Enhancements
- Added date_index as a required parameter for TimeSeries problems #2217
- Have the OneHotEncoder return the transformed columns as booleans rather than floats #2170
- Added Oversampler transformer component to EvalML #2079
- Added Undersampler to AutoMLSearch, as well as arguments _sampler_method and sampler_balanced_ratio #2128
- Updated prediction explanations functions to allow pipelines with XGBoost estimators #2162
- Added partial dependence for datetime columns #2180
- Update precision-recall curve with positive label index argument, and fix for 2d predicted probabilities #2090
- Add pct_null_rows to HighlyNullDataCheck #2211
- Added a standalone AutoML search method for convenience, which runs data checks and then runs automl #2152
- Make the first batch of AutoML have a predefined order, with linear models first and complex models last #2223 #2225
- Added sampling dictionary support to BalancedClassficationSampler #2235
Fixes
- Fixed partial dependence not respecting grid resolution parameter for numerical features #2180
- Enable prediction explanations for catboost for multiclass problems #2224
Changes
- Deleted baseline pipeline classes #2202
- Reverting user specified date feature PR #2155 until pmdarima installation fix is found #2214
- Updated pipeline API to accept component graph and other class attributes as instance parameters. Old pipeline API still works but will not be supported long-term. #2091
- Removed all old datasplitters from EvalML #2193
- Deleted make_pipeline_from_components #2218
Documentation Changes
- Renamed dataset to clarify that its gzipped but not a tarball #2183
- Updated documentation to use pipeline instances instead of pipeline subclasses #2195
- Updated contributing guide with a note about GitHub Actions permissions #2090
- Updated automl and model understanding user guides #2090
Testing Changes
- Use machineFL user token for dependency update bot, and add more reviewers #2189

Warning

Breaking Changes

All baseline pipeline classes (BaselineBinaryPipeline, BaselineMulticlassPipeline, BaselineRegressionPipeline, etc.) have been deleted #2202
Updated pipeline API to accept component graph and other class attributes as instance parameters. Old pipeline API still works but will not be supported long-term. Pipelines can now be initialized by specifying the component graph as the first parameter, and then passing in optional arguments such as custom_name, parameters, etc. For example, BinaryClassificationPipeline(["Random Forest Classifier"], parameters={}). #2091
Removed all old datasplitters from EvalML #2193
Deleted utility method make_pipeline_from_components #2218

v0.23.0 Apr. 20, 2021

Enhancements
- Refactored EngineBase and SequentialEngine api. Adding DaskEngine #1975.
- Added optional engine argument to AutoMLSearch #1975
- Added a warning about how time series support is still in beta when a user passes in a time series problem to AutoMLSearch #2118
- Added NaturalLanguageNaNDataCheck data check #2122
- Added ValueError to partial_dependence to prevent users from computing partial dependence on columns with all NaNs #2120
- Added standard deviation of cv scores to rankings table #2154
Fixes
- Fixed BalancedClassificationDataCVSplit, BalancedClassificationDataTVSplit, and BalancedClassificationSampler to use minority:majority ratio instead of majority:minority #2077
- Fixed bug where two-way partial dependence plots with categorical variables were not working correctly #2117
- Fixed bug where hyperparameters were not displaying properly for pipelines with a list component_graph and duplicate components #2133
- Fixed bug where pipeline_parameters argument in AutoMLSearch was not applied to pipelines passed in as allowed_pipelines #2133
- Fixed bug where AutoMLSearch was not applying custom hyperparameters to pipelines with a list component_graph and duplicate components #2133
Changes
- Removed hyperparameter_ranges from Undersampler and renamed balanced_ratio to sampling_ratio for samplers #2113
- Renamed TARGET_BINARY_NOT_TWO_EXAMPLES_PER_CLASS data check message code to TARGET_MULTICLASS_NOT_TWO_EXAMPLES_PER_CLASS #2126
- Modified one-way partial dependence plots of categorical features to display data with a bar plot #2117
- Renamed score column for automl.rankings as mean_cv_score #2135
- Remove ‘warning’ from docs tool output #2031
Documentation Changes
- Fixed conf.py file #2112
- Added a sentence to the automl user guide stating that our support for time series problems is still in beta. #2118
- Fixed documentation demos #2139
- Update test badge in README to use GitHub Actions #2150
Testing Changes
- Fixed test_describe_pipeline for pandas v1.2.4 #2129
- Added a GitHub Action for building the conda package #1870 #2148

Warning

Breaking Changes

Renamed balanced_ratio to sampling_ratio for the BalancedClassificationDataCVSplit, BalancedClassificationDataTVSplit, BalancedClassficationSampler, and Undersampler #2113
Deleted the “errors” key from automl results #1975
Deleted the raise_and_save_error_callback and the log_and_save_error_callback #1975
Fixed BalancedClassificationDataCVSplit, BalancedClassificationDataTVSplit, and BalancedClassificationSampler to use minority:majority ratio instead of majority:minority #2077

v0.22.0 Apr. 06, 2021

Enhancements
- Added a GitHub Action for linux_unit_tests#2013
- Added recommended actions for InvalidTargetDataCheck, updated _make_component_list_from_actions to address new action, and added TargetImputer component #1989
- Updated AutoMLSearch._check_for_high_variance to not emit RuntimeWarning #2024
- Added exception when pipeline passed to explain_predictions is a Stacked Ensemble pipeline #2033
- Added sensitivity at low alert rates as an objective #2001
- Added Undersampler transformer component #2030
Fixes
- Updated Engine’s train_batch to apply undersampling #2038
- Fixed bug in where Time Series Classification pipelines were not encoding targets in predict and predict_proba #2040
- Fixed data splitting errors if target is float for classification problems #2050
- Pinned docutils to <0.17 to fix ReadtheDocs warning issues #2088
Changes
- Removed lists as acceptable hyperparameter ranges in AutoMLSearch #2028
- Renamed “details” to “metadata” for data check actions #2008
Documentation Changes
- Catch and suppress warnings in documentation #1991 #2097
- Change spacing in start.ipynb to provide clarity for AutoMLSearch #2078
- Fixed start code on README #2108
Testing Changes

v0.21.0 Mar. 24, 2021

Enhancements
- Changed AutoMLSearch to default optimize_thresholds to True #1943
- Added multiple oversampling and undersampling sampling methods as data splitters for imbalanced classification #1775
- Added params to balanced classification data splitters for visibility #1966
- Updated make_pipeline to not add Imputer if input data does not have numeric or categorical columns #1967
- Updated ClassImbalanceDataCheck to better handle multiclass imbalances #1986
- Added recommended actions for the output of data check’s validate method #1968
- Added error message for partial_dependence when features are mostly the same value #1994
- Updated OneHotEncoder to drop one redundant feature by default for features with two categories #1997
- Added a PolynomialDecomposer component #1992
- Added DateTimeNaNDataCheck data check #2039
Fixes
- Changed best pipeline to train on the entire dataset rather than just ensemble indices for ensemble problems #2037
- Updated binary classification pipelines to use objective decision function during scoring of custom objectives #1934
Changes
- Removed data_checks parameter, data_check_results and data checks logic from AutoMLSearch #1935
- Deleted random_state argument #1985
- Updated Woodwork version requirement to v0.0.11 #1996
Documentation Changes
Testing Changes
- Removed build_docs CI job in favor of RTD GH builder #1974
- Added tests to confirm support for Python 3.9 #1724
- Added tests to support Dask AutoML/Engine #1990
- Changed build_conda_pkg job to use latest_release_changes branch in the feedstock. #1979

Warning

Breaking Changes

Changed AutoMLSearch to default optimize_thresholds to True #1943
Removed data_checks parameter, data_check_results and data checks logic from AutoMLSearch. To run the data checks which were previously run by default in AutoMLSearch, please call DefaultDataChecks().validate(X_train, y_train) or take a look at our documentation for more examples. #1935
Deleted random_state argument #1985

v0.20.0 Mar. 10, 2021

Enhancements
- Added a GitHub Action for Detecting dependency changes #1933
- Create a separate CV split to train stacked ensembler on for AutoMLSearch #1814
- Added a GitHub Action for Linux unit tests #1846
- Added ARIMARegressor estimator #1894
- Added DataCheckAction class and DataCheckActionCode enum #1896
- Updated Woodwork requirement to v0.0.10 #1900
- Added BalancedClassificationDataCVSplit and BalancedClassificationDataTVSplit to AutoMLSearch #1875
- Update default classification data splitter to use downsampling for highly imbalanced data #1875
- Updated describe_pipeline to return more information, including id of pipelines used for ensemble models #1909
- Added utility method to create list of components from a list of DataCheckAction #1907
- Updated validate method to include a action key in returned dictionary for all DataCheck``and ``DataChecks #1916
- Aggregating the shap values for predictions that we know the provenance of, e.g. OHE, text, and date-time. #1901
- Improved error message when custom objective is passed as a string in pipeline.score #1941
- Added score_pipelines and train_pipelines methods to AutoMLSearch #1913
- Added support for pandas version 1.2.0 #1708
- Added score_batch and train_batch abstact methods to EngineBase and implementations in SequentialEngine #1913
- Added ability to handle index columns in AutoMLSearch and DataChecks #2138
Fixes
- Removed CI check for check_dependencies_updated_linux #1950
- Added metaclass for time series pipelines and fix binary classification pipeline predict not using objective if it is passed as a named argument #1874
- Fixed stack trace in prediction explanation functions caused by mixed string/numeric pandas column names #1871
- Fixed stack trace caused by passing pipelines with duplicate names to AutoMLSearch #1932
- Fixed AutoMLSearch.get_pipelines returning pipelines with the same attributes #1958
Changes
- Reversed GitHub Action for Linux unit tests until a fix for report generation is found #1920
- Updated add_results in AutoMLAlgorithm to take in entire pipeline results dictionary from AutoMLSearch #1891
- Updated ClassImbalanceDataCheck to look for severe class imbalance scenarios #1905
- Deleted the explain_prediction function #1915
- Removed HighVarianceCVDataCheck and convered it to an AutoMLSearch method instead #1928
- Removed warning in InvalidTargetDataCheck returned when numeric binary classification targets are not (0, 1) #1959
Documentation Changes
- Updated model_understanding.ipynb to demo the two-way partial dependence capability #1919
Testing Changes

Warning

Breaking Changes

Deleted the explain_prediction function #1915
Removed HighVarianceCVDataCheck and convered it to an AutoMLSearch method instead #1928
Added score_batch and train_batch abstact methods to EngineBase. These need to be implemented in Engine subclasses #1913

v0.19.0 Feb. 23, 2021

Enhancements
- Added a GitHub Action for Python windows unit tests #1844
- Added a GitHub Action for checking updated release notes #1849
- Added a GitHub Action for Python lint checks #1837
- Adjusted explain_prediction, explain_predictions and explain_predictions_best_worst to handle timeseries problems. #1818
- Updated InvalidTargetDataCheck to check for mismatched indices in target and features #1816
- Updated Woodwork structures returned from components to support Woodwork logical type overrides set by the user #1784
- Updated estimators to keep track of input feature names during fit() #1794
- Updated visualize_decision_tree to include feature names in output #1813
- Added is_bounded_like_percentage property for objectives. If true, the calculate_percent_difference method will return the absolute difference rather than relative difference #1809
- Added full error traceback to AutoMLSearch logger file #1840
- Changed TargetEncoder to preserve custom indices in the data #1836
- Refactored explain_predictions and explain_predictions_best_worst to only compute features once for all rows that need to be explained #1843
- Added custom random undersampler data splitter for classification #1857
- Updated OutliersDataCheck implementation to calculate the probability of having no outliers #1855
- Added Engines pipeline processing API #1838
Fixes
- Changed EngineBase random_state arg to random_seed and same for user guide docs #1889
Changes
- Modified calculate_percent_difference so that division by 0 is now inf rather than nan #1809
- Removed text_columns parameter from LSA and TextFeaturizer components #1652
- Added random_seed as an argument to our automl/pipeline/component API. Using random_state will raise a warning #1798
- Added DataCheckError message in InvalidTargetDataCheck if input target is None and removed exception raised #1866
Documentation Changes
Testing Changes
- Added back coverage for _get_feature_provenance in TextFeaturizer after text_columns was removed #1842
- Pin graphviz version for windows builds #1847
- Unpin graphviz version for windows builds #1851

Warning

Breaking Changes

Added a deprecation warning to explain_prediction. It will be deleted in the next release. #1860

v0.18.2 Feb. 10, 2021

Enhancements
- Added uniqueness score data check #1785
- Added “dataframe” output format for prediction explanations #1781
- Updated LightGBM estimators to handle pandas.MultiIndex #1770
- Sped up permutation importance for some pipelines #1762
- Added sparsity data check #1797
- Confirmed support for threshold tuning for binary time series classification problems #1803
Fixes
Changes
Documentation Changes
- Added section on conda to the contributing guide #1771
- Updated release process to reflect freezing main before perf tests #1787
- Moving some prs to the right section of the release notes #1789
- Tweak README.md. #1800
- Fixed back arrow on install page docs #1795
- Fixed docstring for ClassImbalanceDataCheck.validate() #1817
Testing Changes

v0.18.1 Feb. 1, 2021

Enhancements
- Added graph_t_sne as a visualization tool for high dimensional data #1731
- Added the ability to see the linear coefficients of features in linear models terms #1738
- Added support for scikit-learn v0.24.0 #1733
- Added support for scipy v1.6.0 #1752
- Added SVM Classifier and Regressor to estimators #1714 #1761
Fixes
- Addressed bug with partial_dependence and categorical data with more categories than grid resolution #1748
- Removed random_state arg from get_pipelines in AutoMLSearch #1719
- Pinned pyzmq at less than 22.0.0 till we add support #1756
Changes
- Updated components and pipelines to return Woodwork data structures #1668
- Updated clone() for pipelines and components to copy over random state automatically #1753
- Dropped support for Python version 3.6 #1751
- Removed deprecated verbose flag from AutoMLSearch parameters #1772
Documentation Changes
- Add Twitter and Github link to documentation toolbar #1754
- Added Open Graph info to documentation #1758
Testing Changes

Warning

Breaking Changes

Components and pipelines return Woodwork data structures instead of pandas data structures #1668
Python 3.6 will not be actively supported due to discontinued support from EvalML dependencies.
Deprecated verbose flag is removed for AutoMLSearch #1772

v0.18.0 Jan. 26, 2021

Enhancements
- Added RMSLE, MSLE, and MAPE to core objectives while checking for negative target values in invalid_targets_data_check #1574
- Added validation checks for binary problems with regression-like datasets and multiclass problems without true multiclass targets in invalid_targets_data_check #1665
- Added time series support for make_pipeline #1566
- Added target name for output of pipeline predict method #1578
- Added multiclass check to InvalidTargetDataCheck for two examples per class #1596
- Added support for graphviz v0.16 #1657
- Enhanced time series pipelines to accept empty features #1651
- Added KNN Classifier to estimators. #1650
- Added support for list inputs for objectives #1663
- Added support for AutoMLSearch to handle time series classification pipelines #1666
- Enhanced DelayedFeaturesTransformer to encode categorical features and targets before delaying them #1691
- Added 2-way dependence plots. #1690
- Added ability to directly iterate through components within Pipelines #1583
Fixes
- Fixed inconsistent attributes and added Exceptions to docs #1673
- Fixed TargetLeakageDataCheck to use Woodwork mutual_information rather than using Pandas’ Pearson Correlation #1616
- Fixed thresholding for pipelines in AutoMLSearch to only threshold binary classification pipelines #1622 #1626
- Updated load_data to return Woodwork structures and update default parameter value for index to None #1610
- Pinned scipy at < 1.6.0 while we work on adding support #1629
- Fixed data check message formatting in AutoMLSearch #1633
- Addressed stacked ensemble component for scikit-learn v0.24 support by setting shuffle=True for default CV #1613
- Fixed bug where Imputer reset the index on X #1590
- Fixed AutoMLSearch stacktrace when a cutom objective was passed in as a primary objective or additional objective #1575
- Fixed custom index bug for MAPE objective #1641
- Fixed index bug for TextFeaturizer and LSA components #1644
- Limited load_fraud dataset loaded into automl.ipynb #1646
- add_to_rankings updates AutoMLSearch.best_pipeline when necessary #1647
- Fixed bug where time series baseline estimators were not receiving gap and max_delay in AutoMLSearch #1645
- Fixed jupyter notebooks to help the RTD buildtime #1654
- Added positive_only objectives to non_core_objectives #1661
- Fixed stacking argument n_jobs for IterativeAlgorithm #1706
- Updated CatBoost estimators to return self in .fit() rather than the underlying model for consistency #1701
- Added ability to initialize pipeline parameters in AutoMLSearch constructor #1676
Changes
- Added labeling to graph_confusion_matrix #1632
- Rerunning search for AutoMLSearch results in a message thrown rather than failing the search, and removed has_searched property #1647
- Changed tuner class to allow and ignore single parameter values as input #1686
- Capped LightGBM version limit to remove bug in docs #1711
- Removed support for np.random.RandomState in EvalML #1727
Documentation Changes
- Update Model Understanding in the user guide to include visualize_decision_tree #1678
- Updated docs to include information about AutoMLSearch callback parameters and methods #1577
- Updated docs to prompt users to install graphiz on Mac #1656
- Added infer_feature_types to the start.ipynb guide #1700
- Added multicollinearity data check to API reference and docs #1707
Testing Changes

Warning

Breaking Changes

Removed has_searched property from AutoMLSearch #1647
Components and pipelines return Woodwork data structures instead of pandas data structures #1668
Removed support for np.random.RandomState in EvalML. Rather than passing np.random.RandomState as component and pipeline random_state values, we use int random_seed #1727

v0.17.0 Dec. 29, 2020

Enhancements
- Added save_plot that allows for saving figures from different backends #1588
- Added LightGBM Regressor to regression components #1459
- Added visualize_decision_tree for tree visualization with decision_tree_data_from_estimator and decision_tree_data_from_pipeline to reformat tree structure output #1511
- Added DFS Transformer component into transformer components #1454
- Added MAPE to the standard metrics for time series problems and update objectives #1510
- Added graph_prediction_vs_actual_over_time and get_prediction_vs_actual_over_time_data to the model understanding module for time series problems #1483
- Added a ComponentGraph class that will support future pipelines as directed acyclic graphs #1415
- Updated data checks to accept Woodwork data structures #1481
- Added parameter to InvalidTargetDataCheck to show only top unique values rather than all unique values #1485
- Added multicollinearity data check #1515
- Added baseline pipeline and components for time series regression problems #1496
- Added more information to users about ensembling behavior in AutoMLSearch #1527
- Add woodwork support for more utility and graph methods #1544
- Changed DateTimeFeaturizer to encode features as int #1479
- Return trained pipelines from AutoMLSearch.best_pipeline #1547
- Added utility method so that users can set feature types without having to learn about Woodwork directly #1555
- Added Linear Discriminant Analysis transformer for dimensionality reduction #1331
- Added multiclass support for partial_dependence and graph_partial_dependence #1554
- Added TimeSeriesBinaryClassificationPipeline and TimeSeriesMulticlassClassificationPipeline classes #1528
- Added make_data_splitter method for easier automl data split customization #1568
- Integrated ComponentGraph class into Pipelines for full non-linear pipeline support #1543
- Update AutoMLSearch constructor to take training data instead of search and add_to_leaderboard #1597
- Update split_data helper args #1597
- Add problem type utils is_regression, is_classification, is_timeseries #1597
- Rename AutoMLSearch data_split arg to data_splitter #1569
Fixes
- Fix AutoML not passing CV folds to DefaultDataChecks for usage by ClassImbalanceDataCheck #1619
- Fix Windows CI jobs: install numba via conda, required for shap #1490
- Added custom-index support for reset-index-get_prediction_vs_actual_over_time_data #1494
- Fix generate_pipeline_code to account for boolean and None differences between Python and JSON #1524 #1531
- Set max value for plotly and xgboost versions while we debug CI failures with newer versions #1532
- Undo version pinning for plotly #1533
- Fix ReadTheDocs build by updating the version of setuptools #1561
- Set random_state of data splitter in AutoMLSearch to take int to keep consistency in the resulting splits #1579
- Pin sklearn version while we work on adding support #1594
- Pin pandas at <1.2.0 while we work on adding support #1609
- Pin graphviz at < 0.16 while we work on adding support #1609
Changes
- Reverting save_graph #1550 to resolve kaleido build issues #1585
- Update circleci badge to apply to main #1489
- Added script to generate github markdown for releases #1487
- Updated selection using pandas dtypes to selecting using Woodwork logical types #1551
- Updated dependencies to fix ImportError: cannot import name 'MaskedArray' from 'sklearn.utils.fixes' error and to address Woodwork and Featuretool dependencies #1540
- Made get_prediction_vs_actual_data() a public method #1553
- Updated Woodwork version requirement to v0.0.7 #1560
- Move data splitters from evalml.automl.data_splitters to evalml.preprocessing.data_splitters #1597
- Rename “# Testing” in automl log output to “# Validation” #1597
Documentation Changes
- Added partial dependence methods to API reference #1537
- Updated documentation for confusion matrix methods #1611
Testing Changes
- Set n_jobs=1 in most unit tests to reduce memory #1505

Warning

Breaking Changes

Updated minimal dependencies: numpy>=1.19.1, pandas>=1.1.0, scikit-learn>=0.23.1, scikit-optimize>=0.8.1
Updated AutoMLSearch.best_pipeline to return a trained pipeline. Pass in train_best_pipeline=False to AutoMLSearch in order to return an untrained pipeline.
Pipeline component instances can no longer be iterated through using Pipeline.component_graph #1543
Update AutoMLSearch constructor to take training data instead of search and add_to_leaderboard #1597
Update split_data helper args #1597
Move data splitters from evalml.automl.data_splitters to evalml.preprocessing.data_splitters #1597
Rename AutoMLSearch data_split arg to data_splitter #1569

v0.16.1 Dec. 1, 2020

Enhancements
- Pin woodwork version to v0.0.6 to avoid breaking changes #1484
- Updated Woodwork to >=0.0.5 in core-requirements.txt #1473
- Removed copy_dataframe parameter for Woodwork, updated Woodwork to >=0.0.6 in core-requirements.txt #1478
- Updated detect_problem_type to use pandas.api.is_numeric_dtype #1476
Changes
- Changed make clean to delete coverage reports as a convenience for developers #1464
- Set n_jobs=-1 by default for stacked ensemble components #1472
Documentation Changes
- Updated pipeline and component documentation and demos to use Woodwork #1466
Testing Changes
- Update dependency update checker to use everything from core and optional dependencies #1480

v0.16.0 Nov. 24, 2020

Enhancements
- Updated pipelines and make_pipeline to accept Woodwork inputs #1393
- Updated components to accept Woodwork inputs #1423
- Added ability to freeze hyperparameters for AutoMLSearch #1284
- Added Target Encoder into transformer components #1401
- Added callback for error handling in AutoMLSearch #1403
- Added the index id to the explain_predictions_best_worst output to help users identify which rows in their data are included #1365
- The top_k features displayed in explain_predictions_* functions are now determined by the magnitude of shap values as opposed to the top_k largest and smallest shap values. #1374
- Added a problem type for time series regression #1386
- Added a is_defined_for_problem_type method to ObjectiveBase #1386
- Added a random_state parameter to make_pipeline_from_components function #1411
- Added DelayedFeaturesTransformer #1396
- Added a TimeSeriesRegressionPipeline class #1418
- Removed core-requirements.txt from the package distribution #1429
- Updated data check messages to include a “code” and “details” fields #1451, #1462
- Added a TimeSeriesSplit data splitter for time series problems #1441
- Added a problem_configuration parameter to AutoMLSearch #1457
Fixes
- Fixed IndexError raised in AutoMLSearch when ensembling = True but only one pipeline to iterate over #1397
- Fixed stacked ensemble input bug and LightGBM warning and bug in AutoMLSearch #1388
- Updated enum classes to show possible enum values as attributes #1391
- Updated calls to Woodwork’s to_pandas() to to_series() and to_dataframe() #1428
- Fixed bug in OHE where column names were not guaranteed to be unique #1349
- Fixed bug with percent improvement of ExpVariance objective on data with highly skewed target #1467
- Fix SimpleImputer error which occurs when all features are bool type #1215
Changes
- Changed OutliersDataCheck to return the list of columns, rather than rows, that contain outliers #1377
- Simplified and cleaned output for Code Generation #1371
- Reverted changes from #1337 #1409
- Updated data checks to return dictionary of warnings and errors instead of a list #1448
- Updated AutoMLSearch to pass Woodwork data structures to every pipeline (instead of pandas DataFrames) #1450
- Update AutoMLSearch to default to max_batches=1 instead of max_iterations=5 #1452
- Updated _evaluate_pipelines to consolidate side effects #1410
Documentation Changes
- Added description of CLA to contributing guide, updated description of draft PRs #1402
- Updated documentation to include all data checks, DataChecks, and usage of data checks in AutoML #1412
- Updated docstrings from np.array to np.ndarray #1417
- Added section on stacking ensembles in AutoMLSearch documentation #1425
Testing Changes
- Removed category_encoders from test-requirements.txt #1373
- Tweak codecov.io settings again to avoid flakes #1413
- Modified make lint to check notebook versions in the docs #1431
- Modified make lint-fix to standardize notebook versions in the docs #1431
- Use new version of pull request Github Action for dependency check (#1443)
- Reduced number of workers for tests to 4 #1447

Warning

Breaking Changes

The top_k and top_k_features parameters in explain_predictions_* functions now return k features as opposed to 2 * k features #1374
Renamed problem_type to problem_types in RegressionObjective, BinaryClassificationObjective, and MulticlassClassificationObjective #1319
Data checks now return a dictionary of warnings and errors instead of a list #1448

v0.15.0 Oct. 29, 2020

Enhancements
- Added stacked ensemble component classes (StackedEnsembleClassifier, StackedEnsembleRegressor) #1134
- Added stacked ensemble components to AutoMLSearch #1253
- Added DecisionTreeClassifier and DecisionTreeRegressor to AutoML #1255
- Added graph_prediction_vs_actual in model_understanding for regression problems #1252
- Added parameter to OneHotEncoder to enable filtering for features to encode for #1249
- Added percent-better-than-baseline for all objectives to automl.results #1244
- Added HighVarianceCVDataCheck and replaced synonymous warning in AutoMLSearch #1254
- Added PCA Transformer component for dimensionality reduction #1270
- Added generate_pipeline_code and generate_component_code to allow for code generation given a pipeline or component instance #1306
- Added PCA Transformer component for dimensionality reduction #1270
- Updated AutoMLSearch to support Woodwork data structures #1299
- Added cv_folds to ClassImbalanceDataCheck and added this check to DefaultDataChecks #1333
- Make max_batches argument to AutoMLSearch.search public #1320
- Added text support to automl search #1062
- Added _pipelines_per_batch as a private argument to AutoMLSearch #1355
Fixes
- Fixed ML performance issue with ordered datasets: always shuffle data in automl’s default CV splits #1265
- Fixed broken evalml info CLI command #1293
- Fixed boosting type='rf' for LightGBM Classifier, as well as num_leaves error #1302
- Fixed bug in explain_predictions_best_worst where a custom index in the target variable would cause a ValueError #1318
- Added stacked ensemble estimators to to evalml.pipelines.__init__ file #1326
- Fixed bug in OHE where calls to transform were not deterministic if top_n was less than the number of categories in a column #1324
- Fixed LightGBM warning messages during AutoMLSearch #1342
- Fix warnings thrown during AutoMLSearch in HighVarianceCVDataCheck #1346
- Fixed bug where TrainingValidationSplit would return invalid location indices for dataframes with a custom index #1348
- Fixed bug where the AutoMLSearch random_state was not being passed to the created pipelines #1321
Changes
- Allow add_to_rankings to be called before AutoMLSearch is called #1250
- Removed Graphviz from test-requirements to add to requirements.txt #1327
- Removed max_pipelines parameter from AutoMLSearch #1264
- Include editable installs in all install make targets #1335
- Made pip dependencies featuretools and nlp_primitives core dependencies #1062
- Removed PartOfSpeechCount from TextFeaturizer transform primitives #1062
- Added warning for partial_dependency when the feature includes null values #1352
Documentation Changes
- Fixed and updated code blocks in Release Notes #1243
- Added DecisionTree estimators to API Reference #1246
- Changed class inheritance display to flow vertically #1248
- Updated cost-benefit tutorial to use a holdout/test set #1159
- Added evalml info command to documentation #1293
- Miscellaneous doc updates #1269
- Removed conda pre-release testing from the release process document #1282
- Updates to contributing guide #1310
- Added Alteryx footer to docs with Twitter and Github link #1312
- Added documentation for evalml installation for Python 3.6 #1322
- Added documentation changes to make the API Docs easier to understand #1323
- Fixed documentation for feature_importance #1353
- Added tutorial for running AutoML with text data #1357
- Added documentation for woodwork integration with automl search #1361
Testing Changes
- Added tests for jupyter_check to handle IPython #1256
- Cleaned up make_pipeline tests to test for all estimators #1257
- Added a test to check conda build after merge to main #1247
- Removed code that was lacking codecov for __main__.py and unnecessary #1293
- Codecov: round coverage up instead of down #1334
- Add DockerHub credentials to CI testing environment #1356
- Add DockerHub credentials to conda testing environment #1363

Warning

Breaking Changes

Renamed LabelLeakageDataCheck to TargetLeakageDataCheck #1319
max_pipelines parameter has been removed from AutoMLSearch. Please use max_iterations instead. #1264
AutoMLSearch.search() will now log a warning if the input is not a Woodwork data structure (pandas, numpy) #1299
Make max_batches argument to AutoMLSearch.search public #1320
Removed unused argument feature_types from AutoMLSearch.search #1062

v0.14.1 Sep. 29, 2020

Enhancements
- Updated partial dependence methods to support calculating numeric columns in a dataset with non-numeric columns #1150
- Added get_feature_names on OneHotEncoder #1193
- Added detect_problem_type to problem_type/utils.py to automatically detect the problem type given targets #1194
- Added LightGBM to AutoMLSearch #1199
- Updated scikit-learn and scikit-optimize to use latest versions - 0.23.2 and 0.8.1 respectively #1141
- Added __str__ and __repr__ for pipelines and components #1218
- Included internal target check for both training and validation data in AutoMLSearch #1226
- Added ProblemTypes.all_problem_types helper to get list of supported problem types #1219
- Added DecisionTreeClassifier and DecisionTreeRegressor classes #1223
- Added ProblemTypes.all_problem_types helper to get list of supported problem types #1219
- DataChecks can now be parametrized by passing a list of DataCheck classes and a parameter dictionary #1167
- Added first CV fold score as validation score in AutoMLSearch.rankings #1221
- Updated flake8 configuration to enable linting on __init__.py files #1234
- Refined make_pipeline_from_components implementation #1204
Fixes
- Updated GitHub URL after migration to Alteryx GitHub org #1207
- Changed Problem Type enum to be more similar to the string name #1208
- Wrapped call to scikit-learn’s partial dependence method in a try/finally block #1232
Changes
- Added allow_writing_files as a named argument to CatBoost estimators. #1202
- Added solver and multi_class as named arguments to LogisticRegressionClassifier #1202
- Replaced pipeline’s ._transform method to evaluate all the preprocessing steps of a pipeline with .compute_estimator_features #1231
- Changed default large dataset train/test splitting behavior #1205
Documentation Changes
- Included description of how to access the component instances and features for pipeline user guide #1163
- Updated API docs to refer to target as “target” instead of “labels” for non-classification tasks and minor docs cleanup #1160
- Added Class Imbalance Data Check to api_reference.rst #1190 #1200
- Added pipeline properties to API reference #1209
- Clarified what the objective parameter in AutoML is used for in AutoML API reference and AutoML user guide #1222
- Updated API docs to include skopt.space.Categorical option for component hyperparameter range definition #1228
- Added install documentation for libomp in order to use LightGBM on Mac #1233
- Improved description of max_iterations in documentation #1212
- Removed unused code from sphinx conf #1235
Testing Changes

Warning

Breaking Changes

DefaultDataChecks now accepts a problem_type parameter that must be specified #1167
Pipeline’s ._transform method to evaluate all the preprocessing steps of a pipeline has been replaced with .compute_estimator_features #1231
get_objectives has been renamed to get_core_objectives. This function will now return a list of valid objective instances #1230

v0.13.2 Sep. 17, 2020

Enhancements
- Added output_format field to explain predictions functions #1107
- Modified get_objective and get_objectives to be able to return any objective in evalml.objectives #1132
- Added a return_instance boolean parameter to get_objective #1132
- Added ClassImbalanceDataCheck to determine whether target imbalance falls below a given threshold #1135
- Added label encoder to LightGBM for binary classification #1152
- Added labels for the row index of confusion matrix #1154
- Added AutoMLSearch object as another parameter in search callbacks #1156
- Added the corresponding probability threshold for each point displayed in graph_roc_curve #1161
- Added __eq__ for ComponentBase and PipelineBase #1178
- Added support for multiclass classification for roc_curve #1164
- Added categories accessor to OneHotEncoder for listing the categories associated with a feature #1182
- Added utility function to create pipeline instances from a list of component instances #1176
Fixes
- Fixed XGBoost column names for partial dependence methods #1104
- Removed dead code validating column type from TextFeaturizer #1122
- Fixed issue where Imputer cannot fit when there is None in a categorical or boolean column #1144
- OneHotEncoder preserves the custom index in the input data #1146
- Fixed representation for ModelFamily #1165
- Removed duplicate nbsphinx dependency in dev-requirements.txt #1168
- Users can now pass in any valid kwargs to all estimators #1157
- Remove broken accessor OneHotEncoder.get_feature_names and unneeded base class #1179
- Removed LightGBM Estimator from AutoML models #1186
Changes
- Pinned scikit-optimize version to 0.7.4 #1136
- Removed tqdm as a dependency #1177
- Added lightgbm version 3.0.0 to latest_dependency_versions.txt #1185
- Rename max_pipelines to max_iterations #1169
Documentation Changes
- Fixed API docs for AutoMLSearch add_result_callback #1113
- Added a step to our release process for pushing our latest version to conda-forge #1118
- Added warning for missing ipywidgets dependency for using PipelineSearchPlots on Jupyterlab #1145
- Updated README.md example to load demo dataset #1151
- Swapped mapping of breast cancer targets in model_understanding.ipynb #1170
Testing Changes
- Added test confirming TextFeaturizer never outputs null values #1122
- Changed Python version of Update Dependencies action to 3.8.x #1137
- Fixed release notes check-in test for Update Dependencies actions #1172

Warning

Breaking Changes

get_objective will now return a class definition rather than an instance by default #1132
Deleted OPTIONS dictionary in evalml.objectives.utils.py #1132
If specifying an objective by string, the string must now match the objective’s name field, case-insensitive #1132
Passing “Cost Benefit Matrix”, “Fraud Cost”, “Lead Scoring”, “Mean Squared Log Error”,
“Recall”, “Recall Macro”, “Recall Micro”, “Recall Weighted”, or “Root Mean Squared Log Error” to AutoMLSearch will now result in a ValueError rather than an ObjectiveNotFoundError #1132
Search callbacks start_iteration_callback and add_results_callback have changed to include a copy of the AutoMLSearch object as a third parameter #1156
Deleted OneHotEncoder.get_feature_names method which had been broken for a while, in favor of pipelines’ input_feature_names #1179
Deleted empty base class CategoricalEncoder which OneHotEncoder component was inheriting from #1176
Results from roc_curve will now return as a list of dictionaries with each dictionary representing a class #1164
max_pipelines now raises a DeprecationWarning and will be removed in the next release. max_iterations should be used instead. #1169

v0.13.1 Aug. 25, 2020

Enhancements
- Added Cost-Benefit Matrix objective for binary classification #1038
- Split fill_value into categorical_fill_value and numeric_fill_value for Imputer #1019
- Added explain_predictions and explain_predictions_best_worst for explaining multiple predictions with SHAP #1016
- Added new LSA component for text featurization #1022
- Added guide on installing with conda #1041
- Added a “cost-benefit curve” util method to graph cost-benefit matrix scores vs. binary classification thresholds #1081
- Standardized error when calling transform/predict before fit for pipelines #1048
- Added percent_better_than_baseline to AutoML search rankings and full rankings table #1050
- Added one-way partial dependence and partial dependence plots #1079
- Added “Feature Value” column to prediction explanation reports. #1064
- Added LightGBM classification estimator #1082, #1114
- Added max_batches parameter to AutoMLSearch #1087
Fixes
- Updated TextFeaturizer component to no longer require an internet connection to run #1022
- Fixed non-deterministic element of TextFeaturizer transformations #1022
- Added a StandardScaler to all ElasticNet pipelines #1065
- Updated cost-benefit matrix to normalize score #1099
- Fixed logic in calculate_percent_difference so that it can handle negative values #1100
Changes
- Added needs_fitting property to ComponentBase #1044
- Updated references to data types to use datatype lists defined in evalml.utils.gen_utils #1039
- Remove maximum version limit for SciPy dependency #1051
- Moved all_components and other component importers into runtime methods #1045
- Consolidated graphing utility methods under evalml.utils.graph_utils #1060
- Made slight tweaks to how TextFeaturizer uses featuretools, and did some refactoring of that and of LSA #1090
- Changed show_all_features parameter into importance_threshold, which allows for thresholding feature importance #1097, #1103
Documentation Changes
- Update setup.py URL to point to the github repo #1037
- Added tutorial for using the cost-benefit matrix objective #1088
- Updated model_understanding.ipynb to include documentation for using plotly on Jupyter Lab #1108
Testing Changes
- Refactor CircleCI tests to use matrix jobs (#1043)
- Added a test to check that all test directories are included in evalml package #1054

Warning

Breaking Changes

confusion_matrix and normalize_confusion_matrix have been moved to evalml.utils #1038
All graph utility methods previously under evalml.pipelines.graph_utils have been moved to evalml.utils.graph_utils #1060

v0.12.2 Aug. 6, 2020

Enhancements
- Add save/load method to components #1023
- Expose pickle protocol as optional arg to save/load #1023
- Updated estimators used in AutoML to include ExtraTrees and ElasticNet estimators #1030
Fixes
Changes
- Removed DeprecationWarning for SimpleImputer #1018
Documentation Changes
- Add note about version numbers to release process docs #1034
Testing Changes
- Test files are now included in the evalml package #1029

v0.12.0 Aug. 3, 2020

Enhancements
- Added string and categorical targets support for binary and multiclass pipelines and check for numeric targets for DetectLabelLeakage data check #932
- Added clear exception for regression pipelines if target datatype is string or categorical #960
- Added target column names and class labels in predict and predict_proba output for pipelines #951
- Added _compute_shap_values and normalize_values to pipelines/explanations module #958
- Added explain_prediction feature which explains single predictions with SHAP #974
- Added Imputer to allow different imputation strategies for numerical and categorical dtypes #991
- Added support for configuring logfile path using env var, and don’t create logger if there are filesystem errors #975
- Updated catboost estimators’ default parameters and automl hyperparameter ranges to speed up fit time #998
Fixes
- Fixed ReadtheDocs warning failure regarding embedded gif #943
- Removed incorrect parameter passed to pipeline classes in _add_baseline_pipelines #941
- Added universal error for calling predict, predict_proba, transform, and feature_importances before fitting #969, #994
- Made TextFeaturizer component and pip dependencies featuretools and nlp_primitives optional #976
- Updated imputation strategy in automl to no longer limit impute strategy to most_frequent for all features if there are any categorical columns #991
- Fixed UnboundLocalError for cv_pipeline when automl search errors #996
- Fixed Imputer to reset dataframe index to preserve behavior expected from SimpleImputer #1009
Changes
- Moved get_estimators to evalml.pipelines.components.utils #934
- Modified Pipelines to raise PipelineScoreError when they encounter an error during scoring #936
- Moved evalml.model_families.list_model_families to evalml.pipelines.components.allowed_model_families #959
- Renamed DateTimeFeaturization to DateTimeFeaturizer #977
- Added check to stop search and raise an error if all pipelines in a batch return NaN scores #1015
Documentation Changes
- Updated README.md #963
- Reworded message when errors are returned from data checks in search #982
- Added section on understanding model predictions with explain_prediction to User Guide #981
- Added a section to the user guide and api reference about how XGBoost and CatBoost are not fully supported. #992
- Added custom components section in user guide #993
- Updated FAQ section formatting #997
- Updated release process documentation #1003
Testing Changes
- Moved predict_proba and predict tests regarding string / categorical targets to test_pipelines.py #972
- Fixed dependency update bot by updating python version to 3.7 to avoid frequent github version updates #1002

Warning

Breaking Changes

get_estimators has been moved to evalml.pipelines.components.utils (previously was under evalml.pipelines.utils) #934
Removed the raise_errors flag in AutoML search. All errors during pipeline evaluation will be caught and logged. #936
evalml.model_families.list_model_families has been moved to evalml.pipelines.components.allowed_model_families #959
TextFeaturizer: the featuretools and nlp_primitives packages must be installed after installing evalml in order to use this component #976
Renamed DateTimeFeaturization to DateTimeFeaturizer #977

v0.11.2 July 16, 2020

Enhancements
- Added NoVarianceDataCheck to DefaultDataChecks #893
- Added text processing and featurization component TextFeaturizer #913, #924
- Added additional checks to InvalidTargetDataCheck to handle invalid target data types #929
- AutoMLSearch will now handle KeyboardInterrupt and prompt user for confirmation #915
Fixes
- Makes automl results a read-only property #919
Changes
- Deleted static pipelines and refactored tests involving static pipelines, removed all_pipelines() and get_pipelines() #904
- Moved list_model_families to evalml.model_family.utils #903
- Updated all_pipelines, all_estimators, all_components to use the same mechanism for dynamically generating their elements #898
- Rename master branch to main #918
- Add pypi release github action #923
- Updated AutoMLSearch.search stdout output and logging and removed tqdm progress bar #921
- Moved automl config checks previously in search() to init #933
Documentation Changes
- Reorganized and rewrote documentation #937
- Updated to use pydata sphinx theme #937
- Updated docs to use release_notes instead of changelog #942
Testing Changes
- Cleaned up fixture names and usages in tests #895

Warning

Breaking Changes

list_model_families has been moved to evalml.model_family.utils (previously was under evalml.pipelines.utils) #903
get_estimators has been moved to evalml.pipelines.components.utils (previously was under evalml.pipelines.utils) #934
Static pipeline definitions have been removed, but similar pipelines can still be constructed via creating an instance of PipelineBase #904
all_pipelines() and get_pipelines() utility methods have been removed #904

v0.11.0 June 30, 2020

Enhancements
- Added multiclass support for ROC curve graphing #832
- Added preprocessing component to drop features whose percentage of NaN values exceeds a specified threshold #834
- Added data check to check for problematic target labels #814
- Added PerColumnImputer that allows imputation strategies per column #824
- Added transformer to drop specific columns #827
- Added support for categories, handle_error, and drop parameters in OneHotEncoder #830 #897
- Added preprocessing component to handle DateTime columns featurization #838
- Added ability to clone pipelines and components #842
- Define getter method for component parameters #847
- Added utility methods to calculate and graph permutation importances #860, #880
- Added new utility functions necessary for generating dynamic preprocessing pipelines #852
- Added kwargs to all components #863
- Updated AutoSearchBase to use dynamically generated preprocessing pipelines #870
- Added SelectColumns transformer #873
- Added ability to evaluate additional pipelines for automl search #874
- Added default_parameters class property to components and pipelines #879
- Added better support for disabling data checks in automl search #892
- Added ability to save and load AutoML objects to file #888
- Updated AutoSearchBase.get_pipelines to return an untrained pipeline instance #876
- Saved learned binary classification thresholds in automl results cv data dict #876
Fixes
- Fixed bug where SimpleImputer cannot handle dropped columns #846
- Fixed bug where PerColumnImputer cannot handle dropped columns #855
- Enforce requirement that builtin components save all inputted values in their parameters dict #847
- Don’t list base classes in all_components output #847
- Standardize all components to output pandas data structures, and accept either pandas or numpy #853
- Fixed rankings and full_rankings error when search has not been run #894
Changes
- Update all_pipelines and all_components to try initializing pipelines/components, and on failure exclude them #849
- Refactor handle_components to handle_components_class, standardize to ComponentBase subclass instead of instance #850
- Refactor “blacklist”/”whitelist” to “allow”/”exclude” lists #854
- Replaced AutoClassificationSearch and AutoRegressionSearch with AutoMLSearch #871
- Renamed feature_importances and permutation_importances methods to use singular names (feature_importance and permutation_importance) #883
- Updated automl default data splitter to train/validation split for large datasets #877
- Added open source license, update some repo metadata #887
- Removed dead code in _get_preprocessing_components #896
Documentation Changes
- Fix some typos and update the EvalML logo #872
Testing Changes
- Update the changelog check job to expect the new branching pattern for the deps update bot #836
- Check that all components output pandas datastructures, and can accept either pandas or numpy #853
- Replaced AutoClassificationSearch and AutoRegressionSearch with AutoMLSearch #871

Warning

Breaking Changes

Pipelines’ static component_graph field must contain either ComponentBase subclasses or str, instead of ComponentBase subclass instances #850
Rename handle_component to handle_component_class. Now standardizes to ComponentBase subclasses instead of ComponentBase subclass instances #850
Renamed automl’s cv argument to data_split #877
Pipelines’ and classifiers’ feature_importances is renamed feature_importance, graph_feature_importances is renamed graph_feature_importance #883
Passing data_checks=None to automl search will not perform any data checks as opposed to default checks. #892
Pipelines to search for in AutoML are now determined automatically, rather than using the statically-defined pipeline classes. #870
Updated AutoSearchBase.get_pipelines to return an untrained pipeline instance, instead of one which happened to be trained on the final cross-validation fold #876

v0.10.0 May 29, 2020

Enhancements
- Added baseline models for classification and regression, add functionality to calculate baseline models before searching in AutoML #746
- Port over highly-null guardrail as a data check and define DefaultDataChecks and DisableDataChecks classes #745
- Update Tuner classes to work directly with pipeline parameters dicts instead of flat parameter lists #779
- Add Elastic Net as a pipeline option #812
- Added new Pipeline option ExtraTrees #790
- Added precicion-recall curve metrics and plot for binary classification problems in evalml.pipeline.graph_utils #794
- Update the default automl algorithm to search in batches, starting with default parameters for each pipeline and iterating from there #793
- Added AutoMLAlgorithm class and IterativeAlgorithm impl, separated from AutoSearchBase #793
Fixes
- Update pipeline score to return nan score for any objective which throws an exception during scoring #787
- Fixed bug introduced in #787 where binary classification metrics requiring predicted probabilities error in scoring #798
- CatBoost and XGBoost classifiers and regressors can no longer have a learning rate of 0 #795
Changes
- Cleanup pipeline score code, and cleanup codecov #711
- Remove pass for abstract methods for codecov #730
- Added __str__ for AutoSearch object #675
- Add util methods to graph ROC and confusion matrix #720
- Refactor AutoBase to AutoSearchBase #758
- Updated AutoBase with data_checks parameter, removed previous detect_label_leakage parameter, and added functionality to run data checks before search in AutoML #765
- Updated our logger to use Python’s logging utils #763
- Refactor most of AutoSearchBase._do_iteration impl into AutoSearchBase._evaluate #762
- Port over all guardrails to use the new DataCheck API #789
- Expanded import_or_raise to catch all exceptions #759
- Adds RMSE, MSLE, RMSLE as standard metrics #788
- Don’t allow Recall to be used as an objective for AutoML #784
- Removed feature selection from pipelines #819
- Update default estimator parameters to make automl search faster and more accurate #793
Documentation Changes
- Add instructions to freeze master on release.md #726
- Update release instructions with more details #727 #733
- Add objective base classes to API reference #736
- Fix components API to match other modules #747
Testing Changes
- Delete codecov yml, use codecov.io’s default #732
- Added unit tests for fraud cost, lead scoring, and standard metric objectives #741
- Update codecov client #782
- Updated AutoBase __str__ test to include no parameters case #783
- Added unit tests for ExtraTrees pipeline #790
- If codecov fails to upload, fail build #810
- Updated Python version of dependency action #816
- Update the dependency update bot to use a suffix when creating branches #817

Warning

Breaking Changes

The detect_label_leakage parameter for AutoML classes has been removed and replaced by a data_checks parameter #765
Moved ROC and confusion matrix methods from evalml.pipeline.plot_utils to evalml.pipeline.graph_utils #720
Tuner classes require a pipeline hyperparameter range dict as an init arg instead of a space definition #779
Tuner.propose and Tuner.add work directly with pipeline parameters dicts instead of flat parameter lists #779
PipelineBase.hyperparameters and custom_hyperparameters use pipeline parameters dict format instead of being represented as a flat list #779
All guardrail functions previously under evalml.guardrails.utils will be removed and replaced by data checks #789
Recall disallowed as an objective for AutoML #784
AutoSearchBase parameter tuner has been renamed to tuner_class #793
AutoSearchBase parameter possible_pipelines and possible_model_families have been renamed to allowed_pipelines and allowed_model_families #793

v0.9.0 Apr. 27, 2020

Enhancements
- Added Accuracy as an standard objective #624
- Added verbose parameter to load_fraud #560
- Added Balanced Accuracy metric for binary, multiclass #612 #661
- Added XGBoost regressor and XGBoost regression pipeline #666
- Added Accuracy metric for multiclass #672
- Added objective name in AutoBase.describe_pipeline #686
- Added DataCheck and DataChecks, Message classes and relevant subclasses #739
Fixes
- Removed direct access to cls.component_graph #595
- Add testing files to .gitignore #625
- Remove circular dependencies from Makefile #637
- Add error case for normalize_confusion_matrix() #640
- Fixed XGBoostClassifier and XGBoostRegressor bug with feature names that contain [, ], or < #659
- Update make_pipeline_graph to not accidentally create empty file when testing if path is valid #649
- Fix pip installation warning about docsutils version, from boto dependency #664
- Removed zero division warning for F1/precision/recall metrics #671
- Fixed summary for pipelines without estimators #707
Changes
- Updated default objective for binary/multiclass classification to log loss #613
- Created classification and regression pipeline subclasses and removed objective as an attribute of pipeline classes #405
- Changed the output of score to return one dictionary #429
- Created binary and multiclass objective subclasses #504
- Updated objectives API #445
- Removed call to get_plot_data from AutoML #615
- Set raise_error to default to True for AutoML classes #638
- Remove unnecessary “u” prefixes on some unicode strings #641
- Changed one-hot encoder to return uint8 dtypes instead of ints #653
- Pipeline _name field changed to custom_name #650
- Removed graphs.py and moved methods into PipelineBase #657, #665
- Remove s3fs as a dev dependency #664
- Changed requirements-parser to be a core dependency #673
- Replace supported_problem_types field on pipelines with problem_type attribute on base classes #678
- Changed AutoML to only show best results for a given pipeline template in rankings, added full_rankings property to show all #682
- Update ModelFamily values: don’t list xgboost/catboost as classifiers now that we have regression pipelines for them #677
- Changed AutoML’s describe_pipeline to get problem type from pipeline instead #685
- Standardize import_or_raise error messages #683
- Updated argument order of objectives to align with sklearn’s #698
- Renamed pipeline.feature_importance_graph to pipeline.graph_feature_importances #700
- Moved ROC and confusion matrix methods to evalml.pipelines.plot_utils #704
- Renamed MultiClassificationObjective to MulticlassClassificationObjective, to align with pipeline naming scheme #715
Documentation Changes
- Fixed some sphinx warnings #593
- Fixed docstring for AutoClassificationSearch with correct command #599
- Limit readthedocs formats to pdf, not htmlzip and epub #594 #600
- Clean up objectives API documentation #605
- Fixed function on Exploring search results page #604
- Update release process doc #567
- AutoClassificationSearch and AutoRegressionSearch show inherited methods in API reference #651
- Fixed improperly formatted code in breaking changes for changelog #655
- Added configuration to treat Sphinx warnings as errors #660
- Removed separate plotting section for pipelines in API reference #657, #665
- Have leads example notebook load S3 files using https, so we can delete s3fs dev dependency #664
- Categorized components in API reference and added descriptions for each category #663
- Fixed Sphinx warnings about BalancedAccuracy objective #669
- Updated API reference to include missing components and clean up pipeline docstrings #689
- Reorganize API ref, and clarify pipeline sub-titles #688
- Add and update preprocessing utils in API reference #687
- Added inheritance diagrams to API reference #695
- Documented which default objective AutoML optimizes for #699
- Create seperate install page #701
- Include more utils in API ref, like import_or_raise #704
- Add more color to pipeline documentation #705
Testing Changes
- Matched install commands of check_latest_dependencies test and it’s GitHub action #578
- Added Github app to auto assign PR author as assignee #477
- Removed unneeded conda installation of xgboost in windows checkin tests #618
- Update graph tests to always use tmpfile dir #649
- Changelog checkin test workaround for release PRs: If ‘future release’ section is empty of PR refs, pass check #658
- Add changelog checkin test exception for dep-update branch #723

Warning

Breaking Changes

Pipelines will now no longer take an objective parameter during instantiation, and will no longer have an objective attribute.
fit() and predict() now use an optional objective parameter, which is only used in binary classification pipelines to fit for a specific objective.
score() will now use a required objectives parameter that is used to determine all the objectives to score on. This differs from the previous behavior, where the pipeline’s objective was scored on regardless.
score() will now return one dictionary of all objective scores.
ROC and ConfusionMatrix plot methods via Auto(*).plot have been removed by #615 and are replaced by roc_curve and confusion_matrix in evamlm.pipelines.plot_utils in #704
normalize_confusion_matrix has been moved to evalml.pipelines.plot_utils #704
Pipelines _name field changed to custom_name
Pipelines supported_problem_types field is removed because it is no longer necessary #678
Updated argument order of objectives’ objective_function to align with sklearn #698
pipeline.feature_importance_graph has been renamed to pipeline.graph_feature_importances in #700
Removed unsupported MSLE objective #704

v0.8.0 Apr. 1, 2020

Enhancements
- Add normalization option and information to confusion matrix #484
- Add util function to drop rows with NaN values #487
- Renamed PipelineBase.name as PipelineBase.summary and redefined PipelineBase.name as class property #491
- Added access to parameters in Pipelines with PipelineBase.parameters (used to be return of PipelineBase.describe) #501
- Added fill_value parameter for SimpleImputer #509
- Added functionality to override component hyperparameters and made pipelines take hyperparemeters from components #516
- Allow numpy.random.RandomState for random_state parameters #556
Fixes
- Removed unused dependency matplotlib, and move category_encoders to test reqs #572
Changes
- Undo version cap in XGBoost placed in #402 and allowed all released of XGBoost #407
- Support pandas 1.0.0 #486
- Made all references to the logger static #503
- Refactored model_type parameter for components and pipelines to model_family #507
- Refactored problem_types for pipelines and components into supported_problem_types #515
- Moved pipelines/utils.save_pipeline and pipelines/utils.load_pipeline to PipelineBase.save and PipelineBase.load #526
- Limit number of categories encoded by OneHotEncoder #517
Documentation Changes
- Updated API reference to remove PipelinePlot and added moved PipelineBase plotting methods #483
- Add code style and github issue guides #463 #512
- Updated API reference for to surface class variables for pipelines and components #537
- Fixed README documentation link #535
- Unhid PR references in changelog #656
Testing Changes
- Added automated dependency check PR #482, #505
- Updated automated dependency check comment #497
- Have build_docs job use python executor, so that env vars are set properly #547
- Added simple test to make sure OneHotEncoder’s top_n works with large number of categories #552
- Run windows unit tests on PRs #557

Warning

Breaking Changes

AutoClassificationSearch and AutoRegressionSearch’s model_types parameter has been refactored into allowed_model_families
ModelTypes enum has been changed to ModelFamily
Components and Pipelines now have a model_family field instead of model_type
get_pipelines utility function now accepts model_families as an argument instead of model_types
PipelineBase.name no longer returns structure of pipeline and has been replaced by PipelineBase.summary
PipelineBase.problem_types and Estimator.problem_types has been renamed to supported_problem_types
pipelines/utils.save_pipeline and pipelines/utils.load_pipeline moved to PipelineBase.save and PipelineBase.load

v0.7.0 Mar. 9, 2020

Enhancements
- Added emacs buffers to .gitignore #350
- Add CatBoost (gradient-boosted trees) classification and regression components and pipelines #247
- Added Tuner abstract base class #351
- Added n_jobs as parameter for AutoClassificationSearch and AutoRegressionSearch #403
- Changed colors of confusion matrix to shades of blue and updated axis order to match scikit-learn’s #426
- Added PipelineBase .graph and .feature_importance_graph methods, moved from previous location #423
- Added support for python 3.8 #462
Fixes
- Fixed ROC and confusion matrix plots not being calculated if user passed own additional_objectives #276
- Fixed ReadtheDocs FileNotFoundError exception for fraud dataset #439
Changes
- Added n_estimators as a tunable parameter for XGBoost #307
- Remove unused parameter ObjectiveBase.fit_needs_proba #320
- Remove extraneous parameter component_type from all components #361
- Remove unused rankings.csv file #397
- Downloaded demo and test datasets so unit tests can run offline #408
- Remove _needs_fitting attribute from Components #398
- Changed plot.feature_importance to show only non-zero feature importances by default, added optional parameter to show all #413
- Refactored PipelineBase to take in parameter dictionary and moved pipeline metadata to class attribute #421
- Dropped support for Python 3.5 #438
- Removed unused apply.py file #449
- Clean up requirements.txt to remove unused deps #451
- Support installation without all required dependencies #459
Documentation Changes
- Update release.md with instructions to release to internal license key #354
Testing Changes
- Added tests for utils (and moved current utils to gen_utils) #297
- Moved XGBoost install into it’s own separate step on Windows using Conda #313
- Rewind pandas version to before 1.0.0, to diagnose test failures for that version #325
- Added dependency update checkin test #324
- Rewind XGBoost version to before 1.0.0 to diagnose test failures for that version #402
- Update dependency check to use a whitelist #417
- Update unit test jobs to not install dev deps #455

Warning

Breaking Changes

Python 3.5 will not be actively supported.

v0.6.0 Dec. 16, 2019

Enhancements
- Added ability to create a plot of feature importances #133
- Add early stopping to AutoML using patience and tolerance parameters #241
- Added ROC and confusion matrix metrics and plot for classification problems and introduce PipelineSearchPlots class #242
- Enhanced AutoML results with search order #260
- Added utility function to show system and environment information #300
Fixes
- Lower botocore requirement #235
- Fixed decision_function calculation for FraudCost objective #254
- Fixed return value of Recall metrics #264
- Components return self on fit #289
Changes
- Renamed automl classes to AutoRegressionSearch and AutoClassificationSearch #287
- Updating demo datasets to retain column names #223
- Moving pipeline visualization to PipelinePlot class #228
- Standarizing inputs as pd.Dataframe / pd.Series #130
- Enforcing that pipelines must have an estimator as last component #277
- Added ipywidgets as a dependency in requirements.txt #278
- Added Random and Grid Search Tuners #240
Documentation Changes
- Adding class properties to API reference #244
- Fix and filter FutureWarnings from scikit-learn #249, #257
- Adding Linear Regression to API reference and cleaning up some Sphinx warnings #227
Testing Changes
- Added support for testing on Windows with CircleCI #226
- Added support for doctests #233

Warning

Breaking Changes

The fit() method for AutoClassifier and AutoRegressor has been renamed to search().
AutoClassifier has been renamed to AutoClassificationSearch
AutoRegressor has been renamed to AutoRegressionSearch
AutoClassificationSearch.results and AutoRegressionSearch.results now is a dictionary with pipeline_results and search_order keys. pipeline_results can be used to access a dictionary that is identical to the old .results dictionary. Whereas, search_order returns a list of the search order in terms of pipeline_id.
Pipelines now require an estimator as the last component in component_list. Slicing pipelines now throws an NotImplementedError to avoid returning pipelines without an estimator.

v0.5.2 Nov. 18, 2019

Enhancements
- Adding basic pipeline structure visualization #211
Documentation Changes
- Added notebooks to build process #212

v0.5.1 Nov. 15, 2019

Enhancements
- Added basic outlier detection guardrail #151
- Added basic ID column guardrail #135
- Added support for unlimited pipelines with a max_time limit #70
- Updated .readthedocs.yaml to successfully build #188
Fixes
- Removed MSLE from default additional objectives #203
- Fixed random_state passed in pipelines #204
- Fixed slow down in RFRegressor #206
Changes
- Pulled information for describe_pipeline from pipeline’s new describe method #190
- Refactored pipelines #108
- Removed guardrails from Auto(*) #202, #208
Documentation Changes
- Updated documentation to show max_time enhancements #189
- Updated release instructions for RTD #193
- Added notebooks to build process #212
- Added contributing instructions #213
- Added new content #222

v0.5.0 Oct. 29, 2019

Enhancements
- Added basic one hot encoding #73
- Use enums for model_type #110
- Support for splitting regression datasets #112
- Auto-infer multiclass classification #99
- Added support for other units in max_time #125
- Detect highly null columns #121
- Added additional regression objectives #100
- Show an interactive iteration vs. score plot when using fit() #134
Fixes
- Reordered describe_pipeline #94
- Added type check for model_type #109
- Fixed s units when setting string max_time #132
- Fix objectives not appearing in API documentation #150
Changes
- Reorganized tests #93
- Moved logging to its own module #119
- Show progress bar history #111
- Using cloudpickle instead of pickle to allow unloading of custom objectives #113
- Removed render.py #154
Documentation Changes
- Update release instructions #140
- Include additional_objectives parameter #124
- Added Changelog #136
Testing Changes
- Code coverage #90
- Added CircleCI tests for other Python versions #104
- Added doc notebooks as tests #139
- Test metadata for CircleCI and 2 core parallelism #137

v0.4.1 Sep. 16, 2019

Enhancements
- Added AutoML for classification and regressor using Autobase and Skopt #7 #9
- Implemented standard classification and regression metrics #7
- Added logistic regression, random forest, and XGBoost pipelines #7
- Implemented support for custom objectives #15
- Feature importance for pipelines #18
- Serialization for pipelines #19
- Allow fitting on objectives for optimal threshold #27
- Added detect label leakage #31
- Implemented callbacks #42
- Allow for multiclass classification #21
- Added support for additional objectives #79
Fixes
- Fixed feature selection in pipelines #13
- Made random_seed usage consistent #45
Documentation Changes
- Documentation Changes
- Added docstrings #6
- Created notebooks for docs #6
- Initialized readthedocs EvalML #6
- Added favicon #38
Testing Changes
- Added testing for loading data #39

v0.2.0 Aug. 13, 2019

Enhancements
- Created fraud detection objective #4

v0.1.0 July. 31, 2019

First Release
Enhancements
- Added lead scoring objecitve #1
- Added basic classifier #1
Documentation Changes
- Initialized Sphinx for docs #1