This release adds Python 3.13 support, fixes several bugs in search, configuration handling, and estimator preprocessing, and improves overall robustness. It also includes major documentation updates covering metrics, estimators, best practices, and hierarchical search spaces. Most of the work was contributed by @Copilot.
What's Changed
- Fix Best Practices not shown by @thinkall in #1483
- Fix isinstance usage issues by @thinkall in #1488
- Add support to python 3.13 by @thinkall in #1486
- Add objective parameter to LGBMEstimator search space by @Copilot in #1474
- Fix BlendSearch OptunaSearch warning for non-hierarchical spaces with Ray Tune domains by @Copilot in #1477
- Fix: Preserve FLAML_sample_size in best_config_per_estimator by @Copilot in #1475
- Bump version to 2.5.0 by @thinkall in #1492
- Add comprehensive metric documentation and URL reference to AutoML docstrings by @Copilot in #1471
- Expand docs to include all flamlized estimators by @Copilot in #1472
- Fix indents in Task-Oriented-AutoML.md by @thinkall in #1493
- Fix nested dictionary merge in SearchThread losing sampled hyperparameters by @Copilot in #1494
- Add GitHub Copilot instructions for FLAML repository by @Copilot in #1502
- Fix eval_set preprocessing for XGBoost estimators with categorical features by @Copilot in #1470
- Document missing value handling behavior for AutoML estimators by @Copilot in #1473
- Document that final_estimator parameters in ensemble are not auto-tuned by @Copilot in #1499
- Add validation and clear error messages for custom_metric parameter by @Copilot in #1500
- Use scientific notation for best error in logger output by @Copilot in #1498
- Add configurable label overlap handling for classification holdout strategy by @Copilot in #1491
- Clarify period parameter and automatic label lagging in time series forecasting by @Copilot in #1495
- Expose task-level and estimator-level preprocessors as public API by @Copilot in #1497
- Add hierarchical search space documentation by @Copilot in #1496
- Update Copilot Instructions by @thinkall in #1505
Full Changelog: v2.4.1...v2.5.0