Issues

• OptunaSearchCV replaces estimator errors with TypeError when error_score="raise"

  optuna/optuna-integration#330 · Filter by author ska2704 opened on Oct 12, 2026

• proposal: test against lightgbm nightly packages?

  feature
  optuna/optuna-integration#287 · Filter by author jameslamb opened on May 21, 2026
  1

• What about supporting HPO for multi-node training with JAX?

  feature
  optuna/optuna-integration#275 · Filter by author nabenabe0928 opened on Apr 2, 2026
  2

• Update dependencies of BoTorch and Numpy

  bug
  optuna/optuna-integration#271 · Filter by author M-Colley opened on Mar 17, 2026
  1

• multiprocessed OptunaSearchCV on lightGBM (sklearn-api) with early stopping callback seem to share a single callback object

  bug
  optuna/optuna-integration#240 · Filter by author yangqi-su opened on Jul 2, 2025
  1

• Add the support for XGBoost 3.0.0

  bug
  optuna/optuna-integration#216 · Filter by author c-bata opened on Mar 28, 2025
  2