diff --git a/django/contrib/admin/sites.py b/django/contrib/admin/sites.py
index 7bc1519c2b378..ba9b032914b45 100644
--- a/django/contrib/admin/sites.py
+++ b/django/contrib/admin/sites.py
@@ -358,7 +358,6 @@ def i18n_javascript(self, request, extra_context=None):
         """
         return JavaScriptCatalog.as_view(packages=['django.contrib.admin'])(request)
 
-    @method_decorator(never_cache)
     def logout(self, request, extra_context=None):
         """
         Log out the user for the given HttpRequest.
@@ -515,7 +514,6 @@ def get_app_list(self, request):
 
         return app_list
 
-    @method_decorator(never_cache)
     def index(self, request, extra_context=None):
         """
         Display the main admin index page, which lists all of the installed
diff --git a/docs/releases/4.0.txt b/docs/releases/4.0.txt
index 7ea518cbc9593..7fca85f8f95d5 100644
--- a/docs/releases/4.0.txt
+++ b/docs/releases/4.0.txt
@@ -311,6 +311,11 @@ Miscellaneous
   :setting:`STATIC_URL`, the leading slash is removed from that setting (now
   ``'static/'``) in the default :djadmin:`startproject` template.
 
+* The :class:`~django.contrib.admin.AdminSite` method for the admin ``index``
+  view is no longer decorated with ``never_cache`` when accessed directly,
+  rather than via the recommended ``AdminSite.urls`` property, or
+  ``AdminSite.get_urls()`` method.
+
 .. _deprecated-features-4.0:
 
 Features deprecated in 4.0