The deploy scripts at the root, make a new release of all the packages in this monorepo. All packages will be released with the same version.

In order to make a new release:

1. npm run release.prepare
2. Review/update changelog
3. Commit updates using the package name and version number as the commit message.
4. npm run release
5. 🎉

It's also possible to make prereleases of individual packages (@ionic/core, @ionic/angular). In order to do so, move to the package you want to make a new release and execute:

npm run prerelease

It will publish a new prerelease in NPM, but it will not create any new git tag or update the CHANGELOG.