diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 52c48bf5..97199372 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -13,6 +13,9 @@ Change Log
 
 Unreleased
 ~~~~~~~~~~
+[9.2.1]
+
+* Add support for either 'whitelist' or 'registry.mapping' options (whitelist introduced in v9.0.0)
 
 [9.2.0]
 
diff --git a/event_routing_backends/__init__.py b/event_routing_backends/__init__.py
index 793994cc..dbd65bc9 100644
--- a/event_routing_backends/__init__.py
+++ b/event_routing_backends/__init__.py
@@ -2,4 +2,4 @@
 Various backends for receiving edX LMS events..
 """
 
-__version__ = '9.2.0'
+__version__ = '9.2.1'
diff --git a/event_routing_backends/management/commands/helpers/queued_sender.py b/event_routing_backends/management/commands/helpers/queued_sender.py
index 3e60f88c..ad9af36e 100644
--- a/event_routing_backends/management/commands/helpers/queued_sender.py
+++ b/event_routing_backends/management/commands/helpers/queued_sender.py
@@ -51,7 +51,7 @@ def is_known_event(self, event):
         """
         if "name" in event:
             for processor in self.engine.processors:
-                if event["name"] in processor.registry.mapping:
+                if event["name"] in processor.whitelist or event["name"] in processor.registry.mapping:
                     return True
         return False
 
diff --git a/event_routing_backends/management/commands/tests/test_transform_tracking_logs.py b/event_routing_backends/management/commands/tests/test_transform_tracking_logs.py
index 3bb47670..c6bf706e 100644
--- a/event_routing_backends/management/commands/tests/test_transform_tracking_logs.py
+++ b/event_routing_backends/management/commands/tests/test_transform_tracking_logs.py
@@ -76,6 +76,7 @@ def command_options():
                     "Sending to LRS!"
                 ]
             },
+            "registry_mapping": {"problem_check": 1},
         },
         # Remote file to LRS dry run no batch size
         {
@@ -94,6 +95,7 @@ def command_options():
                     "Queued 2 log lines, could not parse 2 log lines, skipped 8 log lines, sent 0 batches.",
                 ]
             },
+            "registry_mapping": {"problem_check": 1},
         },
         # Remote file to LRS, default batch size
         {
@@ -112,6 +114,7 @@ def command_options():
                     "Queued 2 log lines, could not parse 2 log lines, skipped 8 log lines, sent 1 batches.",
                 ]
             },
+            "whitelist": ["problem_check"]
         },
         # Local file to remote file
         {
@@ -135,6 +138,7 @@ def command_options():
                     "Queued 2 log lines, could not parse 2 log lines, skipped 8 log lines, sent 2 batches.",
                 ]
             },
+            "whitelist": ["problem_check"]
         },
         # Remote file dry run
         {
@@ -157,6 +161,7 @@ def command_options():
                     "Queued 2 log lines, could not parse 2 log lines, skipped 8 log lines, sent 0 batches.",
                 ]
             },
+            "whitelist": ["problem_check"]
         },
     ]
 
@@ -208,7 +213,8 @@ def test_transform_command(command_opts, mock_common_calls, caplog, capsys):
 
     mm2 = MagicMock()
     # Fake a router mapping so some events in the log are actually processed
-    mm2.registry.mapping = {"problem_check": 1}
+    mm2.registry.mapping = command_opts.pop("registry_mapping", {})
+    mm2.whitelist = command_opts.pop("whitelist", [])
     # Fake a process response that can be serialized to json
     mm2.return_value = {"foo": "bar"}
     tracker.backends["event_transformer"].processors = [mm2]