1 files changed, 16 insertions, 2 deletions
diff --git a/synapse/api/constants.py b/synapse/api/constants.py
index 2c6417c65a..0cbae9429b 100644
--- a/synapse/api/constants.py
+++ b/synapse/api/constants.py
@@ -105,7 +105,6 @@ class RoomVersions(object):
     V1 = "1"
     V2 = "2"
     V3 = "3"
-    VDH_TEST = "vdh-test-version"
     STATE_V2_TEST = "state-v2-test"
 
 
@@ -122,11 +121,26 @@ DEFAULT_ROOM_VERSION = RoomVersions.V1
 KNOWN_ROOM_VERSIONS = {
     RoomVersions.V1,
     RoomVersions.V2,
-    RoomVersions.VDH_TEST,
+    RoomVersions.V3,
     RoomVersions.STATE_V2_TEST,
     RoomVersions.V3,
 }
 
+
+class EventFormatVersions(object):
+    """This is an internal enum for tracking the version of the event format,
+    independently from the room version.
+    """
+    V1 = 1
+    V2 = 2
+
+
+KNOWN_EVENT_FORMAT_VERSIONS = {
+    EventFormatVersions.V1,
+    EventFormatVersions.V2,
+}
+
+
 ServerNoticeMsgType = "m.server_notice"
 ServerNoticeLimitReached = "m.server_notice.usage_limit_reached"