v2.8

Release Notes

1. Enhancements in the CrossValidator class:

   • Added save and load methods to allow saving and loading validator instances.
   • Introduced the plot_score method to visualize scores using boxplot, line plot, or histogram.
   • Added the ifit method, a lazy version of the fit method.
   • Added the cv_results_ attribute to store a dictionary of calculated metrics for each fold.
   • Added the models_ attribute to store fitted models for each fold.

2. Updates in the OptunaTuneCV class:

   • Added support for the trial_timeout parameter when parallel_mode=True.