This is the message I’ll got from WD today:
Dear Mr …
Thank you for your patience.
We have received confirmation that our technicians are aware about this issue and working towards the resolution. At the moment we don’t have the exact date when this issue will be fixed.
We understand that incorrect identification might be confusing and we are truly sorry about that.
However there is nothing to worry about as the version that you have downloaded and installed actually is v3.1.0.
This issue will be fixed with future firmware update.
We are sorry for any inconvenience that might have been caused by that situation.
Sincerely,
…
So everything seems to be ok 
