diff --git a/changelogs/room_versions/newsfragments/2070.clarification b/changelogs/room_versions/newsfragments/2070.clarification
new file mode 100644
index 00000000..7d0208cd
--- /dev/null
+++ b/changelogs/room_versions/newsfragments/2070.clarification
@@ -0,0 +1 @@
+Refactor PDU definitions to reduce duplication.