diff --git a/releasenotes/notes/excise-sahara-7eff95feb416ce4b.yaml b/releasenotes/notes/excise-sahara-7eff95feb416ce4b.yaml
new file mode 100644
index 0000000000..33dd5aa7de
--- /dev/null
+++ b/releasenotes/notes/excise-sahara-7eff95feb416ce4b.yaml
@@ -0,0 +1,6 @@
+---
+upgrade:
+  - The Sahara based content has been removed from the Horizon source tree
+    and is now a separate plugin. To continue managing Sahara in Horizon,
+    installing the sahara-dashboard plugin on the Horizon server is required.
+
diff --git a/releasenotes/notes/excise-trove-ce576b50fbcd15ad.yaml b/releasenotes/notes/excise-trove-ce576b50fbcd15ad.yaml
new file mode 100644
index 0000000000..b5cf317cea
--- /dev/null
+++ b/releasenotes/notes/excise-trove-ce576b50fbcd15ad.yaml
@@ -0,0 +1,6 @@
+---
+upgrade:
+  - The Trove based content has been removed from the Horizon source tree
+    and is now a separate plugin. To continue managing Trove in Horizon,
+    installing the trove-dashboard plugin on the Horizon server is required.
+
diff --git a/releasenotes/notes/move-policy-engine-b19e434a62912e5f.yaml b/releasenotes/notes/move-policy-engine-b19e434a62912e5f.yaml
new file mode 100644
index 0000000000..33b42e5658
--- /dev/null
+++ b/releasenotes/notes/move-policy-engine-b19e434a62912e5f.yaml
@@ -0,0 +1,9 @@
+---
+upgrade:
+  - The main engine managing integration with oslo.policy has been moved
+    to django_openstack_auth. The configuration is still managed in
+    Horizon, but the setting for ``POLICY_CHECK_FUNCTION`` now uses
+    ``openstack_auth.policy.check`` rather than
+    ``openstack_dashboard.policy.check``. Current behavior will
+    remain consistent.
+