Rasa with Sanic and releases

While performing stress tests with a simple bot backed by Rasa Core v0.9.8 we saw how Rasa’s blocking calls (and being synchronous) were an issue. Seeing that the newer versions implemented Sanic and were asynchronous, we decided to try that version.

However, currently all releases that have Sanic are alpha releases (for example the one we are using, Rasa 1.0.0a4). Which functionalities in this release are in alpha status?

Would you recommend that we use this version?

Thanks in advance!