The API is fairly new and we would appreciate your feedback. For example, what are you missing from the API
to solve your use case.
The API might change.
The chance for that is small because we care great deal for the initial design.
The incubating API might change based on the feedback from the community in order to make the API most useful for the users.
For types or methods that are not yet released it means the API is work in progress
and can change before release.