Verizon Note 4 harware version differences - N910V.05 vs N910V.06

I just got a replacement phone (my last one was so laggy/buggy/overheating even after factory resets)

The new phone (new in box) was a different hardware version then the last one.. N910V.06. Does anyone know what the differences are between N910V.06 and N910V.05 (my old phone)? I can't seem to find any information on the web regarding it..

Thanks,
-mark