the files are in (Atlyss folder)/ATLYSS_Data/profileCollections
they'll be named characterProfile_0 and numbered based on how many you have.
Juat copy and paste to the same location in the new version :)
Just posting to make peeps aware of a bug i found when moving characters over from 0.3 to 0.9.
Upon getting to character select i saw that all my character's hair were different colors, while everything else remained the same (pictured below, armor is different cuz i applied dye)
Be aware of this when transferring saves! If fixing isn't possible maybe add the ability to dye hair?