diff --git a/releasenotes/notes/break-up-rbac-malformed-exception-into-discrete-exceptions-92aedb99d0a13f58.yaml b/releasenotes/notes/break-up-rbac-malformed-exception-into-discrete-exceptions-92aedb99d0a13f58.yaml
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+---
+features:
+  - |
+    The exception class ``RbacMalformedException`` has been broken up into the
+    following discrete exceptions:
+
+    * ``RbacMissingAttributeResponseBody`` - incomplete means that the
+      response body (for show or list) is missing certain attributes
+    * ``RbacPartialResponseBody`` - partial means that a list response
+      only returned a subset of the possible results available.
+    * ``RbacEmptyResponseBody`` - empty means that the show or list
+      response body is entirely empty
+
+    Each of the exception classes above deals with a different type of failure
+    related to a soft authorization failure. This means that, rather than a
+    403 error code getting returned by the server, the response body is
+    incomplete in some way.
+upgrade:
+  - |
+    The exception class ``RbacMalformedException`` has been removed. Use one
+    of the following exception classes instead:
+
+    * ``RbacMissingAttributeResponseBody``
+    * ``RbacPartialResponseBody``
+    * ``RbacEmptyResponseBody``