Being able to retrieve accidentally lost data (or backing it up) is a fairly basic feature for any text-based app, even for unpaid usage. I'd email Evernote to suggest this myself, but unfortunately even emailing their support team is only an option for premium/paying users.
I was trying to copy/paste text from one note into another. I must have accidentally copied some blank text in between, and thus lost all the copied text. Command-Z (I'm on a Mac) did not undo it, and when I tried clicking Info-->View history, I get a "permission denied" error. Since I'm probably not the first person who's made this copy/paste typing error, I have to imagine there's a way to recover the lost text. Could someone reading this clarify how to do so? Thanks in advance.