Hi!
I think we need a function here on the answehub so you can choose what engine version you are using for you questions. Something else than tags would be best as tags is easily missed. So a separate section of some sort would be best!
This is just a suggestion of course, but it would make the answerhub life much easier right away 
And I think it will be worse for every update that is coming later on.
Have a great day
- Oscar Hvarfvén