The length_is template filter will be removed in 5.1 of Django.

[jamesgilmorelyst]

To add support for Django 5.1, the length_is feature is deprecated in 4.2 and is being removed in 5.1 [0], so it needs to be fixed.

Warning message when running Django-Jazzmin in v4.2 of Django:

RemovedInDjango51Warning: The length_is template filter is deprecated in favour of the length template filter and the == operator within an {% if %} tag.

[0] https://docs.djangoproject.com/en/dev/releases/5.1/#:~:text=The%20length_is%20template%20filter%20is%20removed.

[jamesgilmorelyst]

Raised a PR to fix this issue:
#534

@farridav could you take a look at this PR, if you have time, please?

[pyaidev]

Uninstall your current version of Django
Remove the current version of Django from your project:
pip uninstall django
install a specific version of Django
Install the desired version of Django (for example, 5.0):
pip install django==5.0
I try and fix the problem

[FabianClemenz]

@jamesgilmorelyst this is resolved in version 3.0.1