It would be useful (in my opinion 
) to have, in addition to from-date, the option to screen out posts made before a specific version, e.g. whenever V.3 was released.
I don’t know… There are some workflows that haven’t changed that much since v.2… It really depends on what you are talking about!
That’s the point – if you were looking for something specific to v.2, you could specify that in the date (or version, though that’d probably be hard to implement).