diff --git a/changelogs/client_server.rst b/changelogs/client_server.rst
index 8d5f45598..0f6d6e91a 100644
--- a/changelogs/client_server.rst
+++ b/changelogs/client_server.rst
@@ -14,6 +14,10 @@ Unreleased changes
     endpoints as deprecated
     (`#1097 <https://github.com/matrix-org/matrix-doc/pull/1097>`_).
 
+- Changes to the API which will be backwards-compatible for clients:
+  - Add 'token' parameter to /keys/query endpoint
+    (`#1104 <https://github.com/matrix-org/matrix-doc/pull/1104>`_).
+
 r0.3.0
 ======