Got a response from them on my support ticket. This is what they shared.
Thank you very much Dave, for sharing this official response.
Its been 5 years since that last version of 3.5.99, and 2+ years since that reply about next version, still not a single version was released after that.
Making this post, only to save someone else's time, in case they stumble upon this issue in the future.
Guess Fraps is done. (BTW, apart from my win10 I've experienced this issue in win7 many times. Still, Fraps was my first preferred win7 screen recorder as it worked most of the time, and was a great piece of software).