Hi, I recently discovered that Version 4 was actually uploaded on the 8th of September 2013
I'm not sure if that is when Crimson announced it, but it's what I could find from the MediaFire link attached to the video archive
https://web.archive.org/web/20221205112928/http://www.mediafire.com/?cs92q67xqiv...
Also to my knowledge, all the versions seem to have been made in Game Maker, but any prior to Version 7 seem to have been made in Gamer Maker 8 and those seem to be compiled differently. I used a GM8 decompiler, and it worked just fine.
Though, I am curious to know where the rest of the dates came.
Edit: I found the post where crimson said it was made in "Game Editor" so I should probably double check the game maker 8 thing.
https://gamejolt.com/x/permalink/comment/35429505
Edit 2: I wrongly assumed V1-5 were made in the same engine as Sally and V666 due to the similar appearance for the files.