Fixed #28956 -- Updated admin's jQuery to 3.2.1.

docs/ref/contrib/admin/index.txt

@@ -2016,10 +2016,14 @@ jQuery
 Django admin JavaScript makes use of the `jQuery`_ library.
 
 To avoid conflicts with user-supplied scripts or libraries, Django's jQuery
-(version 2.2.3) is namespaced as ``django.jQuery``. If you want to use jQuery
+(version 3.2.1) is namespaced as ``django.jQuery``. If you want to use jQuery
 in your own admin JavaScript without including a second copy, you can use the
 ``django.jQuery`` object on changelist and add/edit views.
 
+.. versionchanged:: 2.1
+
+    jQuery was upgraded from 2.2.3 to 3.2.1.
+
 The :class:`ModelAdmin` class requires jQuery by default, so there is no need
 to add jQuery to your ``ModelAdmin``’s list of media resources unless you have
 a specific need. For example, if you require the jQuery library to be in the

docs/releases/2.1.txt

@@ -35,6 +35,8 @@ Minor features
 * :attr:`.ModelAdmin.search_fields` now accepts any lookup such as
   ``field__exact``.
 
+* jQuery is upgraded from version 2.2.3 to 3.2.1.
+
 :mod:`django.contrib.admindocs`
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~