# Which issue does this PR close?

- Part of https://github.com/apache/arrow-rs/issues/9857

# Rationale for this change

See issues linked abiove

# What changes are included in this PR?

1. Update version to 
2. Update CHANGELOG. See Rendered preview here:
https://github.com/alamb/arrow-rs/blob/alamb/prepare_for_56.2.1/CHANGELOG.md

# Are these changes tested?

By CI
# Are there any user-facing changes?

yes