He's just publishing the game coded in a newer version of Ren'py, there's nothing different. What I find suspicious is why he wants us to support Bane, this whole page feels like a trap to me. I wrote a comment to warn people and he didn't reply or remove the link to Bane's Patreon.
I seriously hope this guy won't turn of the comments, because yes, that's an option and one itch should remove.