diff --git a/VERSION b/VERSION
index 276cbf9..93420e7 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.3.0
+2.3.1-dev
\ No newline at end of file
diff --git a/python/adapters/brcm_openomci_onu/brcm_openomci_onu_adapter.py b/python/adapters/brcm_openomci_onu/brcm_openomci_onu_adapter.py
index a921ef8..99efcd8 100644
--- a/python/adapters/brcm_openomci_onu/brcm_openomci_onu_adapter.py
+++ b/python/adapters/brcm_openomci_onu/brcm_openomci_onu_adapter.py
@@ -171,6 +171,12 @@
     def revert_image_update(self, device, request):
         raise NotImplementedError()
 
+    def enable_port(self, device_id, port):
+        raise NotImplementedError()
+
+    def disable_port(self, device_id, port):
+        raise NotImplementedError()
+
     def self_test_device(self, device):
         """
         This is called to Self a device based on a NBI call.
diff --git a/python/requirements.txt b/python/requirements.txt
index 5f1aeeb..cd7b4d4 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -1,2 +1,2 @@
 voltha-protos==3.0.0
-pyvoltha==2.3.9
+pyvoltha==2.3.10