So to answer your question the latest Boot-OS is 3.2.2 and before that who knows.
Well, in my case, after updating to the latest firmware 6.3R2, the Uboot-OS version changed to a lower one, i.e. 3.1.2 ha ha interesting, interesting...

Although on the earlier firmware 6.2R5 (I'm 90% sure about it) I had Uboot-OS version 3.2.2...
Well, it looks like some miracles are happening here..
Maybe it's related to the bugs that version 6.2R5 had and something like this happens when we update from version 6.2R5 to 6.3R2...
@tautech,
@tv84 Maybe you have an idea what could have happened here ?
