I don't know when the manufacture switch happened, but I remember thinking the topping was considerable stronger on the first, square tinned version I had back in like 2015-2016. I started revisiting it again about 6 months ago and the topping seems way toned down, and the blend a bit stronger in nicotine than I remember from the 2015-2016 version. How much of that is my palate changing versus the blend, or whether the blend and its constituent tobaccos change over the years, I don't know... But I do prefer what I've had lately to the tins from 5 years ago.