This version is the development version.

WebUI should support features of the following firmwares:

• Repetier 1.0/2.0
• Marlin 1.X/2.X
• Smoothieware 1.x
• grbl 1.x
• grblHAL

The ESP3D-WEBUI 3.X must be used with ESP3D 3.X, ESP3DLib 3.X and grblHAL It won't work with older versions.