Significant OpenEVSE WiFi 2.0 Firmware Update. Call for beta testers

I’ve had the OpenEVSE for a few years now, and I had added the ESP8266 to it and gotten it configured at one time, but never really used that functionality. Now, I am working with some home automation stuff with hass.io and I see they have an OpenEVSE connection so I want to update my OpenEVSE.

What level of firmware do I need in the OpenEVSE board, and what version in the ESP? Is the process written in a step-by-step format anywhere?

Thanks.

Jake