17 Pull requests merged by 11 people

• Refactor return statement style in optuna/storages/_rdb/models.py for consistency among the codebase

  #6143 merged Jun 9, 2025

• Simplify tuple return in test_trial.py

  #6141 merged Jun 9, 2025

• Simplify tuple return in optuna/visualization/_terminator_improvement.py

  #6139 merged Jun 9, 2025

• Refactor return standardization in optim_mixed.py

  #6140 merged Jun 9, 2025

• Fix CI

  #6137 merged Jun 9, 2025

• Refactor and speed up HV3D

  #6124 merged Jun 6, 2025

• Add assume_pareto for hv calculation in _calculate_weights_below_for_multi_objective

  #6129 merged Jun 6, 2025

• Update docstrings of _get_best_trial to follow coding conventions.

  #6122 merged Jun 5, 2025

• Add float precision tests for storages

  #6040 merged Jun 4, 2025

• Improve test cases for n_recent_trials of plot_timeline (follow-up #6110).

  #6116 merged Jun 4, 2025

• Add a warning about the combination of gRPC Proxy and Journal Storage

  #6097 merged Jun 4, 2025

• Performance optimization for test_study.py by removing redundancy

  #6120 merged Jun 4, 2025

• add deprecated/removed version specification to calls of convert_positional_args

  #6117 merged Jun 4, 2025

• Improve performance of plot_hypervolume_history

  #6115 merged Jun 4, 2025

• Refactor test_base_gasampler.py

  #6104 merged Jun 3, 2025

• Cosmetic fix to the terminator documents.

  #6100 merged Jun 3, 2025

• Optimize Study.best_trial performance by avoiding unnecessary deep copy

  #6119 merged Jun 3, 2025

7 Pull requests opened by 5 people

• Improve parallelization document

  #6123 opened Jun 3, 2025

• Clean up GP-related docs

  #6125 opened Jun 4, 2025

• Add FAQ for case sensitivity problem with MySQL

  #6127 opened Jun 4, 2025

• Cache split infromation for TPE sampler.

  #6128 opened Jun 4, 2025

• Calculate hypervolume in HSSP using sum of contributions

  #6130 opened Jun 5, 2025

• Use hypervolume difference as upperbound of contribs in HSSP

  #6131 opened Jun 5, 2025

• Refactor `tell_with_warning` to avoid unnecessary `get_trial` call

  #6133 opened Jun 6, 2025

3 Issues closed by 2 people

• Incompatible types when running mypy hook

  #6142 closed Jun 9, 2025

• BruteForceSampler fails to resume study when run fails

  #5097 closed Jun 8, 2025

• Continue study after a break

  #6132 closed Jun 6, 2025

1 Issue opened by 1 person

• Use `return a, b` instead of `return (a, b)`

  #6136 opened Jun 7, 2025

2 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• Document Behavior of `optuna.pruners.PercentilePruner`, `optuna.pruners.SuccessiveHalvingPruner` and `optuna.pruners.HyperbandPruner`

  #6092 commented on Jun 6, 2025 • 0 new comments

• Fix: Resolve PG17 incompatibility for ENUMS in CASE statements

  #6099 commented on Jun 9, 2025 • 0 new comments