optuna 4.2.1

v4.2.1

on Python PyPI

This is the release note of v4.2.1. This release includes a bug fix addressing an issue where Optuna was unable to import if an older version of the grpcio package was installed.

Bug

• [backport] Use _LazyImport for grpcio package (#5965)

Other

• Bump up version number to v4.2.1 (#5964)

Thanks to All the Contributors!

This release was made possible by the authors and the people who participated in the reviews and discussions.
@c-bata @HideakiImamura @nabenabe0928