[1.4.X] Fixed #16309 - Made ModelAdmin.list_filter versionchanged annotations more specific to the sections that changed; thanks akaihola for the suggestion and patch.

Backport of 70896386ec from master

docs/ref/contrib/admin/index.txt

@@ -568,8 +568,6 @@ subclass::
 
 .. attribute:: ModelAdmin.list_filter
 
-    .. versionchanged:: 1.4
-
     Set ``list_filter`` to activate filters in the right sidebar of the change
     list page of the admin, as illustrated in the following screenshot:
 
@@ -593,6 +591,8 @@ subclass::
           class PersonAdmin(UserAdmin):
               list_filter = ('company__name',)
 
+    .. versionadded:: 1.4
+
     * a class inheriting from :mod:`django.contrib.admin.SimpleListFilter`,
       which you need to provide the ``title`` and ``parameter_name``
       attributes to and override the ``lookups`` and ``queryset`` methods,
@@ -678,6 +678,8 @@ subclass::
                                     birthday__lte=date(1999, 12, 31)).exists():
                           yield ('90s', _('in the nineties'))
 
+    .. versionadded:: 1.4
+
     * a tuple, where the first element is a field name and the second
       element is a class inheriting from
       :mod:`django.contrib.admin.FieldListFilter`, for example::