Sigh, yet another creator who thinks it's just fine to zero-out all their current users/fans/customers progress with an update. Not everyone is happy with having to repeat hours of the same content all over again through no fault of their own. I recommend that you perhaps do a little research into other AVN's/Game's that have fallen from favor for exactly that reason. The number is not insubstantial.
Viewing post in Wild Cats Chapter 2 Release Schedule comments
Oh, relax you. I agree it sucks when updates are released where previous saves can't be imported, but this is probably one of the least egregious possible examples of that I can think of. It's a visual novel with relatively few choices, an option to skip text, and only the first chapter has been released. It will probably take you like two minutes to restore your progress. If this repeats regularly then I could see your point, but the dev has made no indication of this becoming the norm.