it's been literally years...many years. at least 5 or 6 since i played it. It was super early development. I hope there's more changes than what you say...hell the idea of incest in the game...is that the nephelym fucking their siblings? or do you have a sibling or something in the game now?
Incest isnt allowed at patreon >< so that were removed, but you can turn on with the patch (just creating a notecard mostly), so can get nephs incest or breeder with son/daughter/etc? yes, just when you enable incest is easy get non fertile nephs.
Public build was launched that feb 2024 so well in your case you could find more changes that me that i returned to that game since that date after years without touch it.
Some visual things and settings + cheats ones removed and you can use cheats now without type aswell
Lovense implemented
Many male variants were removed
Prob you played at 2019 i bet or 2020? so well in that case you will notice a big graphic jump, chars are much better in that way:
2019
2024-2025