If you were to unarchive that specific version, you would find the genesis of "Classic" features meeting "Modern" polish:
: Before this version, the mouse was practically useless. v50.01 added a modern UI with menus you could click, making the game accessible to a massive new audience on Steam and Itch.io . dwarf_fortress__v50_01_.rar
: Even with the new look, the core remained—a world where a cat can get "drunk" by walking through spilled beer and licking its paws, or a dwarf can go insane because they haven't seen a "fine chair" in a year. If you were to unarchive that specific version,
: For the first time in history, the game included a built-in guide to help you build your first farm and well. dwarf_fortress__v50_01_.rar