I seem to be having trouble with transferring my save data from 0.10 to 0.11. I downloaded 0.10 from itch.io last month and followed the transfer instructions on the Patreon post.
Copy the "SAVE" folder that is in the "WWW" folder of the 0.10 build.
Paste that "SAVE" folder in the "WWW" folder of the 0.11 build. There shouldn't be a save folder in 0.11 build's folder, if you haven't played it yet.
Only works if you have a save in 0.10 in the first place. If you have started a game and saved in 0.11 you need to replace everything with the 0.10 save folder stuff.