see : packages/postcss-tape/package.json
Set the postcss version to match the peer dependency of all plugins.
Set the postcss-oldest-supported depending on community needs. This can be the same as the postcss version.
- Plugins use
^MAJOR.MINOR. - PostCSS Tape uses
~MAJOR.MINOR.
Avoid increasing these versions when possible.
Major version updates are also always a breaking change.