fix: v3 compatibility

README.rst

@@ -143,9 +143,9 @@ You can run tests by executing::
 .. |coverage| image:: https://codecov.io/gh/divio/djangocms-link/branch/master/graph/badge.svg
     :target: https://codecov.io/gh/divio/djangocms-link
 
-.. |python| image:: https://img.shields.io/badge/python-3.5+-blue.svg
+.. |python| image:: https://img.shields.io/badge/python-3.10+-blue.svg
     :target: https://pypi.org/project/djangocms-link/
-.. |django| image:: https://img.shields.io/badge/django-2.2,%203.0,%203.1-blue.svg
+.. |django| image:: https://img.shields.io/badge/django-4.2,%205.0,%205.1-blue.svg
     :target: https://www.djangoproject.com/
 .. |djangocms| image:: https://img.shields.io/badge/django%20CMS-3.7%2B-blue.svg
     :target: https://www.django-cms.org/

djangocms_link/admin.py

@@ -6,13 +6,17 @@
 from django.views.generic.list import BaseListView
 
 from cms import __version__
-from cms.models import Page, PageContent
+from cms.models import Page
 from cms.utils import get_language_from_request
 
 from . import models
 
 
 _version = int(__version__.split(".")[0])
+if _version >= 4:
+    from cms.models import PageContent
+else:
+    from cms.models import Title as PageContent
 
 
 class UrlsJsonView(BaseListView):