I was going to post this question, then decided I was being lazy and it would be easy enough to figure out with a quick Google search. But I was wrong. It does not seem to be easy to figure out at all, unless I failed to find something obvious!
I could be wrong about the background, but my recollection is that Guerlain Vetiver edt originally came in a bottle shaped like the Habit Rouge bottle always has been. Forgive me for not inserting a photo, but the bottle was rectangular, longer vertically, with indented, square-cut type "panels." Then, again, as I recall, what I think of as the current vetiver bottle was adopted--say around 2000--more squat and squarish, with deep horizontal lines going across the entire face of the bottle.
I think Guerlain may have claimed at the time that there was no accompanying change in formula, but most smelled a distinct formula change around that time.
Thus, I would have thought that any Guerlain I saw for sale in the old style bottle was likely to be the old formula. Old stock, if you would. I had not heard anything about Guerlain shifting back to the pre-2000 bottle design.
However, I seem to be seeming in shops, at least those outisde the US, Guerlain for sale in the pre-2000-type bottle, as well as in the 2000-type bottle. Say in places such as airport duty free shops where I doubt that pre-2000 stock would be for sale.
Does anyone know what is going on? Did Guerlain change bottles and/or forumulas again? I suppose I should have been paying attention to the design of the boxes. I actually think the pre-2000-type bottles I saw came in green boxes, similar to what the 2000 bottles came in. I have a recollection that actual vintage Guerlain Vetiver may have come in a largely white box with black lettering.
Thanks! I would have grabbed a bottle if I were confident that it was the vintage juice, although I like the current version about as much as the vintage edt.