There was a critical bug reported yesterday which would cause users to get 404 pages instead of their list options page. Upon investigation, it was found that the bug was related to bumping of Mailman Core's API version to 3.1 in django-mailman3 1.3.3 release.
Because this bug can cause problems accessing several pages in web interface, we have a quick bugfix release for you.
If you have already upgraded to 1.3.3 and don't wish to do another upgrade/restart, you have an option to run the command below to avoid the bug:
$ python manage.py clear_cache -a
This should invalidate the cache entries which cause the 404 bug.
The new release is available through PyPI at:
The changelog is available at:
Finally, as usual, you can update to the new release using pip:
$ pip install django-mailman3==1.3.4