Would add the following to Cargo.toml: version = 2.0.0-alpha.0
Would add the following to CHANGELOG.md: 
## 2.0.0-alpha.0 ([DATE])

### Breaking Changes

#### A breaking change

A breaking change for only the first package

### Features

- A new shared feature from a conventional commit

Would add files to git:
  Cargo.toml
  CHANGELOG.md
