Fixed #28937 -- Allowed BinaryField to be editable=True.

docs/ref/models/fields.txt

@@ -420,8 +420,14 @@ guaranteed to fit numbers from ``-9223372036854775808`` to
 
 A field to store raw binary data. It only supports ``bytes`` assignment. Be
 aware that this field has limited functionality. For example, it is not possible
-to filter a queryset on a ``BinaryField`` value. It is also not possible to
-include a ``BinaryField`` in a :class:`~django.forms.ModelForm`.
+to filter a queryset on a ``BinaryField`` value.
+
+By default, ``BinaryField`` sets :attr:`~Field.editable` to ``False``, in which
+case it can't be included in a :class:`~django.forms.ModelForm`.
+
+.. versionchanged:: 2.1
+
+    Older versions don't allow setting ``editable`` to ``True``.
 
 .. admonition:: Abusing ``BinaryField``
 

docs/releases/2.1.txt

@@ -157,6 +157,9 @@ Models
 
 * Models can now use ``__init_subclass__()`` from :pep:`487`.
 
+* A ``BinaryField`` may now be set to ``editable=True`` if you wish to include
+  it in model forms.
+
 Requests and Responses
 ~~~~~~~~~~~~~~~~~~~~~~
 

docs/topics/forms/modelforms.txt

@@ -62,6 +62,11 @@ Model field                         Form field
                                     ``min_value`` set to -9223372036854775808
                                     and ``max_value`` set to 9223372036854775807.
 
+:class:`BinaryField`                :class:`~django.forms.CharField`, if
+                                    :attr:`~.Field.editable` is set to
+                                    ``True`` on the model field, otherwise not
+                                    represented in the form.
+
 :class:`BooleanField`               :class:`~django.forms.BooleanField`
 
 :class:`CharField`                  :class:`~django.forms.CharField` with