With the next version 4.1, which will be released shortly, it will be necessary to keep in mind that you have to update:
- QF desktop version.
- QF Node.js server (if used remotely).
- The HTML quizzes produced with QF, if they use the save mode on the server (local or remote).
As for this last aspect (quiz update in HTML) it is necessary as the server-side APIs have been updated which all require authentication (for this purpose, an "anonymous" user has been created if the page is not used. login but create an anonymous quiz with saving the results).