update
The release-plz update command updates the version and the changelog of the
packages containing unreleased changes.
The command:
- Downloads the packages of the project from the cargo registry.
 - Compares the local packages with the downloaded ones to determine the new commits.
 - Checks for API breaking changes in libraries if
cargo-semver-checks
is installed.
Warning: 
cargo-semver-checksdoesn't catch every semver violation. - Updates the packages versions based on the messages of the new commits (based on conventional commits and semantic versioning).
 - Updates the packages changelogs with the messages of the new commits.
 - Updates all dependencies by running 
cargo update(disabled by default). 
In the following example, I run release-plz on the release-plz project itself.
Release-plz increases the version and the changelog of the packages with
unpublished changes.

To learn more, run release-plz update --help.