Na, this is mis-translation ... I wanted to say updated engine cause we're using old renpy and we don't have all the optimizations and settings of the new versions released since the beginning of the development. We have made some tests nd upgrade on B.E.S.T would broke... literally saves, game, functionalities... So if we go through a " sequel" or anything, we will update all the tools we have to make it better. With 4K renders, full optimizations for animations, optimized scripts, Custom UI... That we can't add in this version without broking everything.