Joplin crashes shortly after launch

Oh I see, that's probably because the code signature has changed in the new release. It is valid but different from the previous one, thus the error. Unfortunately I don't think we can do anything about it since you'd need to update to fix the issue, but updating crashes the app.

Would you mind sharing the full log, with line numbers so that at least we know where it happens? Even if the signature check fails, the app at least should not crash