diff --git a/source/release-notes/backend.txt b/source/release-notes/backend.txt
index dd74de871..b374dc3b2 100644
--- a/source/release-notes/backend.txt
+++ b/source/release-notes/backend.txt
@@ -13,6 +13,20 @@ Atlas App Services Changelog
 2023 Releases
 -------------
 
+.. _backend_20231004:
+
+04 October 2023 Release
+~~~~~~~~~~~~~~~~~~~~~~~
+
+- App Services now prevents you from deleting a data source that has an
+  active trigger, log forwarder, sync, or other event subscription.
+
+- Device Sync now supports geographic queries on GeoJSON Point fields.
+
+- Device Sync clients trying to bootstrap with a bundled realm that has
+  become invalidated by a termination are now sent a client reset
+  command.
+
 .. _backend_20230918:
 
 18 September 2023 Release