This project is a prototype implementation of the OSGi Pushstream specification.
OSGi Push Streams (RFC-216 https://github.com/osgi/design/tree/master/rfcs/rfc0216) are an in-progress RFC publicly available from the OSGi Alliance. They are also described in chapter 706 of the OSGi R7 Early Draft https://osgi.org/download/osgi.cmpn-7.0.0-earlydraft1.pdf
Given that the RFC is non-final the OSGi API declared in this project is subject to change at any time up to its official release. Also the behaviour of this implementation may not always be up-to-date with the latest wording in the RFC. The project maintainers will, however try to keep pace with the RFC, and to ensure that the implementations are compliant with any OSGi specifications that result from the RFC.