Introduction and wiki: https://www.letscontrolit.com/wiki/index.php/ESPEasy#Introduction
This is the development branch for the next upcoming release (2.0.0). This is also known as ESPEasyMega.
Check here to learn how to use this branch and help us improving ESPEasy: http://www.letscontrolit.com/wiki/index.php/ESPEasy#Source_code_development
Binary development releases are here: https://github.com/letscontrolit/ESPEasy/releases
Details and discussion are on the Experimental forum: http://www.letscontrolit.com/forum/viewtopic.php?f=18&t=2257&p=13600#p13600
We're also on IRC: #ESPEasy @freenode