Hi, I submitted this ticket today and it was closed: https://code.djangoproject.com/ticket/31592
I think Django should handle downgrading versions without raising exceptions. If objects (such as sessions) are invalid because of downgrading, they should be deleted automatically. It may happen that a user (website owner) downgrades Django and they would expect everything to keep working. And I have a question: Will authenticated users still be authenticated after upgrading or downgrading Django to a different version? We use persistent cookies for 30 years and I don't want to log out users if they don't log out themselves or delete their cookies. I had a problem when upgrading to a previous version of Django (2.1) that session cookies stopped working in the other website I have (a different domain name), and it persisted until I defined *SESSION_COOKIE_SAMESITE = None* in settings [ https://stackoverflow.com/a/59315164/1412564]. Until then my production websites didn't accept logins to the other website. Thanks, Uri. אורי u...@speedy.net -- You received this message because you are subscribed to the Google Groups "Django developers (Contributions to Django itself)" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-developers+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-developers/CABD5YeEvwJGZrA-x8z%3D--jUeXE66%3D6SDvbH6Q0242gKz%2BktLRQ%40mail.gmail.com.