Due to the LCD limitations on the i3 Plus we are not migrating it to Unified 2. This is a pack made just for the i3 Plus that is pre-setup for just that machine. Directions are here in this video: Installing the Unified Firmware + ADVi3++ LCD Firmware on the Wanhao i3 Plus (EZABL) – YouTube
The release package includes the firmware and pre-setup Arduino IDE to compile and upload the firmware.
This is based on U1.R2.B5