Annotation Type UnstableApi

@Retention(SOURCE)
@Target({ANNOTATION_TYPE,CONSTRUCTOR,FIELD,METHOD,PACKAGE,TYPE})
@Documented
public @interface UnstableApi

Indicates a public API that can change at any time (even in minor/bugfix releases). Usage guidelines:

1. Is not needed for things located in *.internal.* packages
2. Only public accessible classes/interfaces must be annotated
3. If this annotation is not present the API is considered stable and so no backward compatibility can be broken in a non-major release!