I have a 2011 and upgraded mine with UPD01008.bin downloaded from BMW a while ago. I get the same error as you when I check for updates now.
Attached pdf has the version info.
Readme_UPD01008_ENG.pdf
Here's the binary, remove .pdf from the filename.
UPD01008.bin.pdf
Besides a newer map, you can do some coding to change some of the characteristics of the vehicle.