10 years have passed since the launch of Restlet Framework v1, the first RESTful API framework created, and thanks to our efforts and our open source community, we have gathered a lot of experience along the way. In parallel, the continuous innovation, competition and maturation in the web API space in general and in the Java space as well has created an opportunity to innovate again. The goal is to have a prototype of the v3 of the framework working, based on Netty and Reactive Streams, supporting HTTP/2 and async APIs in a RESTful way.