Version 2.0 was accidentally deleted Version 1.0 is stored in another warehouse FrontEnd https://github.com/BladeHiker/LoremSurvey LoremServer3 2.0->3.0 Increase the CSRF, Want to have a faster and more secure cross site verification than Django's own change emails Change email thread guard wait Add the cache system based on redis !if the manager change the question have been sent respondent will get the new question one minute later