3.28.0.2
  • Welcome to H2O 3
  • API-Related Changes
    • From 3.22 or Below to 3.24
      • Java API
    • From 3.26 or Below to 3.28
      • Java API
  • Quick Start Videos
  • Cloud Integration
  • Downloading & Installing H2O
  • Starting H2O
  • Getting Data into Your H2O Cluster
  • Data Manipulation
  • Algorithms
  • Cross-Validation
  • Variable Importance
  • Grid (Hyperparameter) Search
  • Checkpointing Models
  • Performance and Prediction
  • AutoML: Automatic Machine Learning
  • Saving and Loading a Model
  • Productionizing H2O
  • Using Flow - H2O’s Web UI
  • Downloading Logs
  • H2O Architecture
  • Security
  • FAQ
  • Glossary
  • Appendix A - Parameters
  • Appendix B - API Reference
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API-Related Changes¶

H2O-3 does its best to keep backwards compatibility between major versions, but sometimes breaking changes are needed in order to improve code quality and to address issues. This section provides a list of current breaking changes between specific releases.

From 3.22 or Below to 3.24¶

Java API¶

The following classes were moved and/or renamed:

Until 3.22 From 3.24
hex.StackedEnsembleModel hex.ensemble.StackedEnsembleModel
hex.StackedEnsembleModel.MetalearnerAlgorithm hex.ensemble.Metalearner.Algorithm
ai.h2o.automl.AutoML.algo ai.h2o.automl.Algo

Some internal methods of StackedEnsemble and StackedEnsembleModel are no longer public, but this should not impact users.

From 3.26 or Below to 3.28¶

Java API¶

The following classes were moved:

Until 3.26 From 3.28
ai.h2o.automl.EventLog ai.h2o.automl.events.EventLog
ai.h2o.automl.EventLogEntry ai.h2o.automl.events.EventLogEntry
ai.h2o.automl.Leaderboard ai.h2o.automl.leaderboard.Leaderboard
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