diff --git a/CHANGES.rst b/CHANGES.rst
index 1690490f6..5b05900da 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,3 +1,7 @@
+Changes in latest
+=================
+This breaks federation becuase of signing
+
 Changes in synapse 0.3.4 (2014-09-25)
 =====================================
 This version adds support for using a TURN server. See docs/turn-howto.rst on
diff --git a/UPGRADE.rst b/UPGRADE.rst
index 713fb9ae8..2ae9254ec 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -1,3 +1,8 @@
+Upgrading to latest
+===================
+This breaks federation between old and new servers due to signing of
+transactions.
+
 Upgrading to v0.3.0
 ===================