v4.17.0

Features & Bug Fixes

• handle async commands in default_dispatcher for interactive shells by @BrianPugh in #827
• Allow Parameter.show_default to be a string to display. by @BrianPugh in #833

Publishing

• Add PyPI publish attestations to releases by @shaanmajid in #828
• Harden PyPI publish workflow by @shaanmajid in #829

New Contributors

• @shaanmajid made their first contribution in #828

Full Changelog: v4.16.1...v4.17.0