diff --git a/docs/en/ingest-management/fleet/fleet-settings-output-elasticsearch.asciidoc b/docs/en/ingest-management/fleet/fleet-settings-output-elasticsearch.asciidoc
index 2d4a24826..703227d38 100644
--- a/docs/en/ingest-management/fleet/fleet-settings-output-elasticsearch.asciidoc
+++ b/docs/en/ingest-management/fleet/fleet-settings-output-elasticsearch.asciidoc
@@ -185,6 +185,8 @@ For descriptions of each setting, refer to <<es-output-settings-yaml-config,Adva
 As mentioned, the `custom` preset allows you to input your own set of parameters for a finer tuning of performance. The following table
 is a summary of a few data points and how the resulting EPS compares to the `Balanced` setting mentioned above.
 
+These presets apply only to agents on version 8.12.0 or later.
+
 .Performance tuning: EPS data
 [cols="1,1,1,1,1,1,1"]
 |===