Another interesting place to get some detailed info is the 411 page.
Go to settings menu then type 411 (otherwise known as alt-r alt-q alt-q alt-q)
Mine has some
Waveform Version V220_C013_60_WJ1901_D
OTA Current / Update Version: 525120101 / 0
System Software Version: 101-shasta0.5-052512
I did the update off amazon, so may be different from others...