diff --git a/releasenotes/notes/use-keystone-v3-api-935860d30ddbb8e9.yaml b/releasenotes/notes/use-keystone-v3-api-935860d30ddbb8e9.yaml
new file mode 100644
index 0000000..dd6e924
--- /dev/null
+++ b/releasenotes/notes/use-keystone-v3-api-935860d30ddbb8e9.yaml
@@ -0,0 +1,5 @@
+---
+upgrade:
+  - Tempest now defaults to using Keystone v3 API for the
+    authentication, because Keystone v3 API is CURRENT and
+    the v2 API is deprecated.