It is difficult for us to set a hard date for it as it's also dependent on our own projects and time available. Since it's open source, it also depends on the feedback and support we get externally from i.e. you?
It is marked Beta because we have set expectations on versioning here. You can find two bugs on the version 0.9 of the module library and additionally, we plan to perform one API change until the RC or release stage can be reached.