3 Pull requests merged by 3 people

• Add AutoSampler to the sampler comparison table in the API reference

  #6260 merged Sep 4, 2025

• Speed up EHVI by optimizing tensor operation order

  #6257 merged Sep 3, 2025

• Include legend within image bounds for optimization history plot

  #6254 merged Sep 3, 2025

3 Pull requests opened by 1 person

• Use the decremental approach in the hypervolume contribution calculation

  #6264 opened Sep 1, 2025

• Use cached trials in `TPESampler`'s `sample_relative`

  #6265 opened Sep 1, 2025

• Remove `find_or_raise_by_id` in `_set_trial_value_without_commit`

  #6266 opened Sep 1, 2025

2 Issues closed by 2 people

• Pruning checks performed at incorrect steps by SuccessiveHalvingPruner

  #5750 closed Sep 3, 2025

• Optuna create_study hangs with sqlite storage

  #6267 closed Sep 3, 2025

3 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.

• Cache pair-wise distances to speed up `GPSampler`

  #6244 commented on Sep 5, 2025 • 2 new comments

• Fix log PDF of discrete trunc log-norm distribution for `TPESampler`

  #6258 commented on Sep 5, 2025 • 0 new comments

• Remove `prior_mu` from `compute_sigmas`

  #6261 commented on Sep 4, 2025 • 0 new comments