Hard to remember the details.
The latest version sold was 3.1. There was an update which brought it to 3.13. (I have that),. Check the sticker on the back for the version. The upgrade kit came with the sticker.
If you had a single scart on the TV then the STB could be played via the V8000, it could also record. You could also record from the STB without starting the TV by linking the STB with the V8000. Some sort of menu transfer allowed this. (the features were enabled in the 2.1 to 3.0/1 updates)
Some other fixes related to NTSC B/W on PAL units, a few minor glitches that helped with reliability. Its hard to remember now.
There is a TIB for the 3.13 update, maybe someone has it.
Hope that helps..
beoaus