This introduces a breaking change.

BREAKING-CHANGE: This breaks the API.
Please follow these migration steps:
- Foo
- Bar

This adds a breaking change, ohoh.

BREAKING-CHANGE: This breaks previous versions.

Please make sure to do any migration you would like to use this new version.

Acked-By: @henbug

Acked-By: Henning Leutz <leutz@pcsg.de> @henbug