Expand on why users should read upgrade notes

1 files changed, 4 insertions, 1 deletions

diff --git a/CHANGES.md b/CHANGES.md

index 64c30eed10..67d649a4dd 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,7 +1,10 @@
 Synapse 1.42.0rc2 (2021-09-06)
 ==============================
 
-Server administrators are reminded to read [the upgrade notes](docs/upgrade.md#upgrading-to-v1420).
+This version of Synapse removes deprecated room-management admin APIs and out-of-date
+email pushers, and improves error handling for fallback templates for user-interactive
+authentication. For more information on these points, server administrators are
+encouraged to read [the upgrade notes](docs/upgrade.md#upgrading-to-v1420).
 
 Features
 --------