Just a little more patience. The version on Itch will be the latest version (1.03) along with an additional ending. Approximately 2-3 hrs.
Edit: Need some more time. Few hrs.
Edi2: Patch 1.03 will be delayed. The problem is Steam achievements that work for some players but not for others. Since the patch is being released on all 3 platforms, the patch will only appear after this issue is fixed. And this will definitely happen today.