Set `display_version` to indicate a LTS release
diff --git a/docs/antora.yml b/docs/antora.yml
index e4df974..8738950 100644
--- a/docs/antora.yml
+++ b/docs/antora.yml
@@ -18,5 +18,6 @@
 name: camel-karaf
 title: Camel Karaf
 version: 3.11.x
+display_version: 3.11.x (LTS)
 nav:
 - modules/ROOT/nav.adoc