diff --git a/doc/source/admin/concurrency.rst b/doc/source/admin/concurrency.rst
index e303ce117ef1..bea81aa20266 100644
--- a/doc/source/admin/concurrency.rst
+++ b/doc/source/admin/concurrency.rst
@@ -13,7 +13,10 @@ up support for the native threading mode.
 
 .. note::
 
-   The native threading mode is not ready yet. Do not use it in production.
+   The native threading mode is experimental. Do not use it in production
+   without first testing it in pre-production. If you do so please let us now
+   how it went on the mailing list openstack-discuss@lists.openstack.org.
+
 
 Selecting concurrency mode for a service
 ----------------------------------------
diff --git a/nova/monkey_patch.py b/nova/monkey_patch.py
index c3bc62dea9ba..68d1c17faa4c 100644
--- a/nova/monkey_patch.py
+++ b/nova/monkey_patch.py
@@ -110,4 +110,5 @@ def patch():
         LOG = logging.getLogger(__name__)
         LOG.warning(
             "Service is starting with native threading. This is currently "
-            "experimental. Do not use it in production.")
+            "experimental. Do not use it in production without first "
+            "testing it in pre-production.")
diff --git a/releasenotes/notes/threaded-nova-api-d8ec6704dcf66fb3.yaml b/releasenotes/notes/threaded-nova-api-d8ec6704dcf66fb3.yaml
index 531c16992b8f..455910d30cd6 100644
--- a/releasenotes/notes/threaded-nova-api-d8ec6704dcf66fb3.yaml
+++ b/releasenotes/notes/threaded-nova-api-d8ec6704dcf66fb3.yaml
@@ -3,6 +3,9 @@ features:
   - |
     The nova-api and nova-metadata services now can be run in native threading
     mode instead of with eventlet. This is an experimental feature that is
-    disabled by default. Please read the
+    disabled by default. Please test the native threading mode in
+    pre-production before enabling it in production. If you do so please let us
+    now how it went on the mailing list openstack-discuss@lists.openstack.org.
+    Please read the
     `concurrency <https://docs.openstack.org/nova/latest/admin/concurrency.html>`__
     guide for more details.
diff --git a/releasenotes/notes/threaded-nova-scheduler-dd4649b987f33025.yaml b/releasenotes/notes/threaded-nova-scheduler-dd4649b987f33025.yaml
index 2923eb9e2f0a..5671cba540bd 100644
--- a/releasenotes/notes/threaded-nova-scheduler-dd4649b987f33025.yaml
+++ b/releasenotes/notes/threaded-nova-scheduler-dd4649b987f33025.yaml
@@ -3,7 +3,9 @@ features:
   - |
     The nova-scheduler now can be run in native threading mode instead
     of with eventlet. This is an experimental feature that is disabled by
-    default. Please read the
+    default. Please test the native threading mode in pre-production before
+    enabling it in production. If you do so please let us now how it went on
+    the mailing list openstack-discuss@lists.openstack.org. Please read the
     `concurrency <https://docs.openstack.org/nova/latest/admin/concurrency.html>`__
     guide for more details.