The Downloads page now lists three distinct catalogued versions of 1112: Episode 01 on the Internet Archive: 1.2.0, 1.2.3, and 2.0.0.
We haven't done a full diff between builds yet — that's next on the list. If you've played more than one version and noticed differences worth documenting (bug fixes, translation changes, interface tweaks), it would be good to have that written down before it's forgotten entirely.
For now, all three are linked from the preservation status board.