Moved has_changed logic from widget to form field

Refs #16612. Thanks Aymeric Augustin for the suggestion.

1 files changed, 6 insertions, 0 deletions

diff --git a/docs/releases/1.6.txt b/docs/releases/1.6.txt
index 89d7bb3c05..29ecad3e9f 100644
--- a/docs/releases/1.6.txt
+++ b/docs/releases/1.6.txt
@@ -67,3 +67,9 @@ If you're relying on this feature, you should add
 ``'django.middleware.common.BrokenLinkEmailsMiddleware'`` to your
 :setting:`MIDDLEWARE_CLASSES` setting and remove ``SEND_BROKEN_LINK_EMAILS``
 from your settings.
+
+``_has_changed`` method on widgets
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If you defined your own form widgets and defined the ``_has_changed`` method
+on a widget, you should now define this method on the form field itself.