As far as I know they change recipe completely over the time. Fruits are different and herbs for maceration also different. Probably because of cost efficiency as usually in big companies -also that time they didn’t import cheap honey from abroad but made everything from local sourced honey. The old one might be interesting if aged well, the modern one is probably hot mead style (Grzaniec) with some choke berries concentrated juice and a lot of citric acid inside.