Milight / Applamp bulb compatibility

[elythomaslumber]

I have a very old Wifi milight controller-box with 3 RGB/W bulbs (V1 or 2). Now I want to add a new RGB bulb but I don´t know about the compatibilty of new production bulbs to the old controller.

I found this comment in github:

bulbs using Milight protocol versions 4.0 and 6.0. RGB bulbs which are no longer sold since January 2014 should also work using the rgb command set.

Earlier versions of Milight used a very primitive one-way communication protocol where each command must be sent in a single UDP packet. It is just fire & forget similar to simple RF protocols for garage door openers and such. Recently, a new generation of Milight products has been introduced which use a new v6.0 protocol to provide advanced features.

So I understand that the protocol between the controller and the phone-app or remote or Domoticz and the Wifi box has changed. But did also change the protocol between the WiFi-box and the bulbs or are they still compatible?