Modding Help [RESOLVED] Help Regarding Post-1.4 Dungeons and Tilesets

It looks like tilesets are in a new format, and so are dungeon files, which explains why all my older maps from 1.3 are not loading. Does anybody know if 1.4 uses a newer version of Tiled? And if so, which one? I tried looking at Tiled 1.2 (as opposed to 1.16), which failed to create files similar to the vanilla assets.

While it could be that my tileset is just broken somehow, I want to eliminate the possibility of a version change to prevent unnecessarily spending countless hours rebuilding tilesets.

 

Sorry, I was being stupid; Tiled 1.16 still works.