add RNs on lowercasing bc ids (#1017)

source/how-tos/app-development/interactive/form.rst

@@ -51,6 +51,17 @@ My App* from the list of sandbox apps.
 You should now see the HTML form used to gather the user-defined attributes for
 building and launching the ``my_app`` Interactive App session.
 
+.. warning::
+
+  Since 4.0 HTML IDs of the form items are always lowercase. The examples above
+  show lowercase configurations of ``account``.  Specifying ``Account``,
+  or ``ACCOUNT`` or any variation of uppercase and lowercase will result in
+  the same behhavior as specifying ``account`` (all lower case).
+
+  If you write your own ``form.js`` take care to note that HTML IDs of these
+  form items will **always** be lowercase regardless of how they're defined in
+  the YAML file.
+
 .. tip::
 
    You can include dynamically generated content in the form by renaming the

source/release-notes/v4.0-release-notes.rst

@@ -53,6 +53,29 @@ themselves are ``dismissable`` by default.
 
 The documentation for :ref:`configure_announcements` has been updated with this new feature.
 
+Batch connect form ids are now lowercase.
+*****************************************
+
+To resolve some bugs with :ref:`dynamic-bc-apps`, batch connect form
+items will now force lowercase HTML IDs.  This may break some javascript
+at centers expecting the HTML id of the form item to be a mix of uppercase
+and lowercase.
+
+This is an example of defining a form item with uppercase keys like ``My_Cool_Form_Item``.
+
+.. code-block:: yaml
+
+  ---
+  form:
+    My_Cool_Form_Item
+
+In this example ``My_Cool_Form_Item`` has uppercase characters, however the HTML
+id of the form item will be lowercase as shown below.
+
+.. code-block:: html
+
+  id="batch_connect_session_context_my_cool_form_item"
+
 Dependency updates
 ..................